Search Results - "Robnett, James"

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    HERA Phase I Limits on the Cosmic 21 cm Signal: Constraints on Astrophysics and Cosmology during the Epoch of Reionization by Abdurashidova, Zara, Aguirre, James E., Alexander, Paul, Ali, Zaki S., Balfour, Yanga, Barkana, Rennan, Beardsley, Adam P., Bernardi, Gianni, Billings, Tashalee S., Bowman, Judd D., Bradley, Richard F., Bull, Philip, Burba, Jacob, Carey, Steve, Carilli, Chris L., Cheng, Carina, DeBoer, David R., Dexter, Matt, de Lera Acedo, Eloy, Dillon, Joshua S., Ely, John, Ewall-Wice, Aaron, Fagnoni, Nicolas, Fialkov, Anastasia, Fritz, Randall, Furlanetto, Steven R., Gale-Sides, Kingsley, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hazelton, Bryna J., Heimersheim, Stefan, Hewitt, Jacqueline N., Hickish, Jack, Jacobs, Daniel C., Julius, Austin, Kern, Nicholas S., Kerrigan, Joshua, Kittiwisit, Piyanat, Kohn, Saul A., Kolopanis, Matthew, Lanman, Adam, La Plante, Paul, Lekalake, Telalo, Lewis, David, Liu, Adrian, Ma, Yin-Zhe, MacMahon, David, Malan, Lourence, Malgas, Cresshim, Maree, Matthys, Martinot, Zachary E., Matsetela, Eunice, Mesinger, Andrei, Mirocha, Jordan, Molewa, Mathakane, Morales, Miguel F., Mosiane, Tshegofalang, Muñoz, Julian B., Murray, Steven G., Neben, Abraham R., Nikolic, Bojan, Nunhokee, Chuneeta D., Parsons, Aaron R., Patra, Nipanjana, Pieterse, Samantha, Pober, Jonathan C., Qin, Yuxiang, Razavi-Ghods, Nima, Reis, Itamar, Ringuette, Jon, Robnett, James, Rosie, Kathryn, Santos, Mario G., Sikder, Sudipta, Sims, Peter, Smith, Craig, Syce, Angelo, Thyagarajan, Nithyanandan, Williams, Peter K. G., Zheng, Haoxuan

    Published in The Astrophysical journal (01-01-2022)
    “…Abstract Recently, the Hydrogen Epoch of Reionization Array (HERA) has produced the experiment’s first upper limits on the power spectrum of 21 cm fluctuations…”
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    Journal Article
  3. 3

    Improved Constraints on the 21 cm EoR Power Spectrum and the X-Ray Heating of the IGM with HERA Phase I Observations by Abdurashidova, The HERA Collaboration: Zara, Adams, Tyrone, Aguirre, James E., Alexander, Paul, Ali, Zaki S., Baartman, Rushelle, Balfour, Yanga, Barkana, Rennan, Beardsley, Adam P., Bernardi, Gianni, Billings, Tashalee S., Bowman, Judd D., Bradley, Richard F., Breitman, Daniela, Bull, Philip, Burba, Jacob, Carey, Steve, Carilli, Chris L., Cheng, Carina, Choudhuri, Samir, DeBoer, David R., de Lera Acedo, Eloy, Dexter, Matt, Dillon, Joshua S., Ely, John, Ewall-Wice, Aaron, Fagnoni, Nicolas, Fialkov, Anastasia, Fritz, Randall, Furlanetto, Steven R., Gale-Sides, Kingsley, Garsden, Hugh, Glendenning, Brian, Gorce, Adélie, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hazelton, Bryna J., Heimersheim, Stefan, Hewitt, Jacqueline N., Hickish, Jack, Jacobs, Daniel C., Julius, Austin, Kern, Nicholas S., Kerrigan, Joshua, Kittiwisit, Piyanat, Kohn, Saul A., Kolopanis, Matthew, Lanman, Adam, La Plante, Paul, Lewis, David, Liu, Adrian, Loots, Anita, Ma, Yin-Zhe, MacMahon, David H. E., Malan, Lourence, Malgas, Keith, Malgas, Cresshim, Maree, Matthys, Marero, Bradley, Martinot, Zachary E., McBride, Lisa, Mesinger, Andrei, Mirocha, Jordan, Molewa, Mathakane, Morales, Miguel F., Mosiane, Tshegofalang, Muñoz, Julian B., Murray, Steven G., Nagpal, Vighnesh, Neben, Abraham R., Nikolic, Bojan, Nunhokee, Chuneeta D., Nuwegeld, Hans, Parsons, Aaron R., Pascua, Robert, Patra, Nipanjana, Pieterse, Samantha, Qin, Yuxiang, Razavi-Ghods, Nima, Robnett, James, Rosie, Kathryn, Santos, Mario G., Sims, Peter, Singh, Saurabh, Smith, Craig, Swarts, Hilton, Tan, Jianrong, Thyagarajan, Nithyanandan, Wilensky, Michael J., Williams, Peter K. G., van Wyngaarden, Pieter, Zheng, Haoxuan

    Published in The Astrophysical journal (01-03-2023)
    “…Abstract We report the most sensitive upper limits to date on the 21 cm epoch of reionization power spectrum using 94 nights of observing with Phase I of the…”
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  4. 4

    Mitigating Internal Instrument Coupling for 21 cm Cosmology. II. A Method Demonstration with the Hydrogen Epoch of Reionization Array by Kern, Nicholas S., Parsons, Aaron R., Dillon, Joshua S., Lanman, Adam E., Liu, Adrian, Bull, Philip, Ewall-Wice, Aaron, Abdurashidova, Zara, Aguirre, James E., Alexander, Paul, Ali, Zaki S., Balfour, Yanga, Beardsley, Adam P., Bernardi, Gianni, Bowman, Judd D., Bradley, Richard F., Burba, Jacob, Carilli, Chris L., Cheng, Carina, DeBoer, David R., Dexter, Matt, de Lera Acedo, Eloy, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steve R., Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hazelton, Bryna J., Hewitt, Jacqueline N., Hickish, Jack, Jacobs, Daniel C., Julius, Austin, Kerrigan, Joshua, Kittiwisit, Piyanat, Kohn, Saul A., Kolopanis, Matthew, La Plante, Paul, Lekalake, Telalo, MacMahon, David, Malan, Lourence, Malgas, Cresshim, Maree, Matthys, Martinot, Zachary E., Matsetela, Eunice, Mesinger, Andrei, Molewa, Mathakane, Morales, Miguel F., Mosiane, Tshegofalang, Murray, Steven G., Neben, Abraham R., Patra, Nipanjana, Pieterse, Samantha, Pober, Jonathan C., Razavi-Ghods, Nima, Ringuette, Jon, Robnett, James, Rosie, Kathryn, Sims, Peter, Smith, Craig, Syce, Angelo, Thyagarajan, Nithyanandan, Williams, Peter K. G., Zheng, Haoxuan

    Published in The Astrophysical journal (10-01-2020)
    “…We present a study of internal reflection and cross-coupling systematics in Phase I of the Hydrogen Epoch of Reionization Array (HERA). In a companion paper,…”
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    Redundant-baseline calibration of the hydrogen epoch of reionization array by Dillon, Joshua S, Lee, Max, Ali, Zaki S, Parsons, Aaron R, Orosz, Naomi, Nunhokee, Chuneeta Devi, La Plante, Paul, Beardsley, Adam P, Kern, Nicholas S, Abdurashidova, Zara, Aguirre, James E, Alexander, Paul, Balfour, Yanga, Bernardi, Gianni, Billings, Tashalee S, Bowman, Judd D, Bradley, Richard F, Bull, Phil, Burba, Jacob, Carey, Steve, Carilli, Chris L, Cheng, Carina, DeBoer, David R, Dexter, Matt, de Lera Acedo, Eloy, Ely, John, Ewall-Wice, Aaron, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steven R, Gale-Sides, Kingsley, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hazelton, Bryna J, Hewitt, Jacqueline N, Hickish, Jack, Jacobs, Daniel C, Julius, Austin, Kerrigan, Joshua, Kittiwisit, Piyanat, Kohn, Saul A, Kolopanis, Matthew, Lanman, Adam, Lekalake, Telalo, Lewis, David, Liu, Adrian, Ma, Yin-Zhe, MacMahon, David, Malan, Lourence, Malgas, Cresshim, Maree, Matthys, Martinot, Zachary E, Matsetela, Eunice, Mesinger, Andrei, Molewa, Mathakane, Morales, Miguel F, Mosiane, Tshegofalang, Murray, Steven, Neben, Abraham R, Nikolic, Bojan, Pascua, Robert, Patra, Nipanjana, Pieterse, Samantha, Pober, Jonathan C, Razavi-Ghods, Nima, Ringuette, Jon, Robnett, James, Rosie, Kathryn, Santos, Mario G, Sims, Peter, Smith, Craig, Syce, Angelo, Tegmark, Max, Thyagarajan, Nithyanandan, Williams, Peter K G, Zheng, Haoxuan

    “…ABSTRACT In 21-cm cosmology, precision calibration is key to the separation of the neutral hydrogen signal from very bright but spectrally smooth astrophysical…”
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  6. 6

    Absolute Calibration Strategies for the Hydrogen Epoch of Reionization Array and Their Impact on the 21 cm Power Spectrum by Kern, Nicholas S., Dillon, Joshua S., Parsons, Aaron R., Carilli, Christopher L., Bernardi, Gianni, Abdurashidova, Zara, Aguirre, James E., Alexander, Paul, Ali, Zaki S., Balfour, Yanga, Beardsley, Adam P., Billings, Tashalee S., Bowman, Judd D., Bradley, Richard F., Bull, Philip, Burba, Jacob, Carey, Steven, Cheng, Carina, DeBoer, David R., Dexter, Matt, de Lera Acedo, Eloy, Ely, John, Ewall-Wice, Aaron, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steve R., Gale-Sides, Kingsley, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hazelton, Bryna J., Hewitt, Jacqueline N., Hickish, Jack, Jacobs, Daniel C., Julius, Austin, Kerrigan, Joshua, Kittiwisit, Piyanat, Kohn, Saul A., Kolopanis, Matthew, Lanman, Adam, La Plante, Paul, Lekalake, Telalo, Liu, Adrian, MacMahon, David, Malan, Lourence, Malgas, Cresshim, Maree, Matthys, Martinot, Zachary E., Matsetela, Eunice, Mesinger, Andrei, Molewa, Mathakane, Morales, Miguel F., Mosiane, Tshegofalang, Murray, Steven G., Neben, Abraham R., Nikolic, Bojan, Nunhokee, Chuneeta D., Patra, Nipanjana, Pieterse, Samantha, Pober, Jonathan C., Razavi-Ghods, Nima, Ringuette, Jon, Robnett, James, Rosie, Kathryn, Sims, Peter, Smith, Craig, Syce, Angelo, Thyagarajan, Nithyanandan, Williams, Peter K. G., Zheng, Haoxuan

    Published in The Astrophysical journal (20-02-2020)
    “…We discuss absolute calibration strategies for Phase I of the Hydrogen Epoch of Reionization Array (HERA), which aims to measure the cosmological 21 cm signal…”
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  7. 7

    Understanding the HERA Phase I receiver system with simulations and its impact on the detectability of the EoR delay power spectrum by Fagnoni, Nicolas, de Lera Acedo, Eloy, DeBoer, David R, Abdurashidova, Zara, Aguirre, James E, Alexander, Paul, Ali, Zaki S, Balfour, Yanga, Beardsley, Adam P, Bernardi, Gianni, Billings, Tashalee S, Bowman, Judd D, Bradley, Richard F, Bull, Phil, Burba, Jacob, Carilli, Chris L, Cheng, Carina, Dexter, Matt, Dillon, Joshua S, Ewall-Wice, Aaron, Fritz, Randall, Furlanetto, Steve R, Gale-Sides, Kingsley, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hazelton, Bryna J, Hewitt, Jacqueline N, Hickish, Jack, Jacobs, Daniel C, Josaitis, Alec, Julius, Austin, Kern, Nicholas S, Kerrigan, Joshua, Kim, Honggeun, Kittiwisit, Piyanat, Kohn, Saul A, Kolopanis, Matthew, Lanman, Adam, Plante, Paul La, Lekalake, Telalo, Liu, Adrian, MacMahon, David, Malan, Lourence, Malgas, Cresshim, Maree, Matthys, Martinot, Zachary E, Matsetela, Eunice, Mena Parra, Juan, Mesinger, Andrei, Molewa, Mathakane, Morales, Miguel F, Mosiane, Tshegofalang, Neben, Abraham R, Nikolic, Bojan, Parsons, Aaron R, Patra, Nipanjana, Pieterse, Samantha, Pober, Jonathan C, Razavi-Ghods, Nima, Robnett, James, Rosie, Kathryn, Sims, Peter, Smith, Craig, Syce, Angelo, Thyagarajan, Nithyanandan, Williams, Peter K G, Zheng, Haoxuan

    “…ABSTRACT The detection of the Epoch of Reionization (EoR) delay power spectrum using a ‘foreground avoidance method’ highly depends on the instrument…”
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  8. 8

    Foreground modelling via Gaussian process regression: an application to HERA data by Ghosh, Abhik, Mertens, Florent, Bernardi, Gianni, Santos, Mário G, Kern, Nicholas S, Carilli, Christopher L, Grobler, Trienko L, Koopmans, Léon V E, Jacobs, Daniel C, Liu, Adrian, Parsons, Aaron R, Morales, Miguel F, Aguirre, James E, Dillon, Joshua S, Hazelton, Bryna J, Smirnov, Oleg M, Gehlot, Bharat K, Matika, Siyanda, Alexander, Paul, Ali, Zaki S, Beardsley, Adam P, Benefo, Roshan K, Billings, Tashalee S, Bowman, Judd D, Bradley, Richard F, Cheng, Carina, Chichura, Paul M, DeBoer, David R, Acedo, Eloy de Lera, Ewall-Wice, Aaron, Fadana, Gcobisa, Fagnoni, Nicolas, Fortino, Austin F, Fritz, Randall, Furlanetto, Steve R, Gallardo, Samavarti, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Hickish, Jack, Josaitis, Alec, Julius, Austin, Igarashi, Amy S, Kariseb, MacCalvin, Kohn, Saul A, Kolopanis, Matthew, Lekalake, Telalo, Loots, Anita, MacMahon, David, Malan, Lourence, Malgas, Cresshim, Maree, Matthys, Martinot, Zachary E, Mathison, Nathan, Matsetela, Eunice, Mesinger, Andrei, Neben, Abraham R, Nikolic, Bojan, Nunhokee, Chuneeta D, Patra, Nipanjana, Pieterse, Samantha, Razavi-Ghods, Nima, Ringuette, Jon, Robnett, James, Rosie, Kathryn, Sell, Raddwine, Smith, Craig, Syce, Angelo, Tegmark, Max, Thyagarajan, Nithyanandan, Williams, Peter K G, Zheng, Haoxuan

    “…ABSTRACT The key challenge in the observation of the redshifted 21-cm signal from cosmic reionization is its separation from the much brighter foreground…”
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    Validation of the HERA Phase I Epoch of Reionization 21 cm Power Spectrum Software Pipeline by Aguirre, James E., Murray, Steven G., Pascua, Robert, Martinot, Zachary E., Burba, Jacob, Dillon, Joshua S., Jacobs, Daniel C., Kern, Nicholas S., Kittiwisit, Piyanat, Kolopanis, Matthew, Lanman, Adam, Liu, Adrian, Whitler, Lily, Abdurashidova, Zara, Alexander, Paul, Ali, Zaki S., Balfour, Yanga, Beardsley, Adam P., Bernardi, Gianni, Billings, Tashalee S., Bowman, Judd D., Bradley, Richard F., Bull, Philip, Carey, Steve, Carilli, Chris L., Cheng, Carina, DeBoer, David R., Dexter, Matt, de Lera Acedo, Eloy, Ely, John, Ewall-Wice, Aaron, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steven R., Gale-Sides, Kingsley, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hazelton, Bryna J., Hewitt, Jacqueline N., Hickish, Jack, Julius, Austin, Kerrigan, Joshua, Kohn, Saul A., La Plante, Paul, Lekalake, Telalo, Lewis, David, MacMahon, David, Malan, Lourence, Malgas, Cresshim, Maree, Matthys, Matsetela, Eunice, Mesinger, Andrei, Molewa, Mathakane, Morales, Miguel F., Mosiane, Tshegofalang, Neben, Abraham R., Nikolic, Bojan, Parsons, Aaron R., Patra, Nipanjana, Pieterse, Samantha, Pober, Jonathan C., Razavi-Ghods, Nima, Ringuette, Jon, Robnett, James, Rosie, Kathryn, Santos, Mario G., Sims, Peter, Singh, Saurabh, Smith, Craig, Syce, Angelo, Thyagarajan, Nithyanandan, Williams, Peter K. G., Zheng, Haoxuan

    Published in The Astrophysical journal (01-01-2022)
    “…Abstract We describe the validation of the HERA Phase I software pipeline by a series of modular tests, building up to an end-to-end simulation. The philosophy…”
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  11. 11

    A demonstration of the effect of fringe-rate filtering in the hydrogen epoch of reionization array delay power spectrum pipeline by Garsden, Hugh, Bull, Philip, Wilensky, Michael J, Abdurashidova, Zuhra, Adams, Tyrone, Aguirre, James E, Alexander, Paul, Ali, Zaki S, Baartman, Rushelle, Balfour, Yanga, Beardsley, Adam P, Berkhout, Lindsay M, Bernardi, Gianni, Billings, Tashalee S, Bowman, Judd D, Bradley, Richard F, Burba, Jacob, Carey, Steven, Carilli, Chris L, Chen, Kai-Feng, Cheng, Carina, Choudhuri, Samir, DeBoer, David R, Acedo, Eloy de Lera, Dexter, Matt, Dillon, Joshua S, Dynes, Scott, Eksteen, Nico, Ely, John, Ewall-Wice, Aaron, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steven R, Gale-Sides, Kingsley, Gehlot, Bharat Kumar, Ghosh, Abhik, Glendenning, Brian, Gorce, Adelie, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hazelton, Bryna J, Hewitt, Jacqueline N, Hickish, Jack, Huang, Tian, Jacobs, Daniel C, Josaitis, Alec, Julius, Austin, Kariseb, MacCalvin, Kern, Nicholas S, Kerrigan, Joshua, Kim, Honggeun, Kittiwisit, Piyanat, Kohn, Saul A, Kolopanis, Matthew, Lanman, Adam, Plante, Paul La, Liu, Adrian, Loots, Anita, Ma, Yin-Zhe, MacMahon, David H E, Malan, Lourence, Malgas, Cresshim, Malgas, Keith, Marero, Bradley, Martinot, Zachary E, Mesinger, Andrei, Molewa, Mathakane, Morales, Miguel F, Mosiane, Tshegofalang, Murray, Steven G, Neben, Abraham R, Nikolic, Bojan, Nunhokee, Chuneeta Devi, Nuwegeld, Hans, Parsons, Aaron R, Pascua, Robert, Patra, Nipanjana, Pieterse, Samantha, Qin, Yuxiang, Rath, Eleanor, Razavi-Ghods, Nima, Riley, Daniel, Robnett, James, Rosie, Kathryn, Santos, Mario G, Sims, Peter, Singh, Saurabh, Storer, Dara, Swarts, Hilton, Tan, Jianrong, Thyagarajan, Nithyanandan, van Wyngaarden, Pieter, Williams, Peter K G, Xu, Zhilei, Zheng, Haoxuan

    “…Abstract Radio interferometers targeting the 21cm brightness temperature fluctuations at high redshift are subject to systematic effects that operate over a…”
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  12. 12

    Bayesian estimation of cross-coupling and reflection systematics in 21cm array visibility data by Murphy, Geoff G, Bull, Philip, Santos, Mario G, Abdurashidova, Zara, Adams, Tyrone, Aguirre, James E, Alexander, Paul, Ali, Zaki S, Baartman, Rushelle, Balfour, Yanga, Beardsley, Adam P, Bernardi, Gianni, Billings, Tashalee S, Bowman, Judd D, Bradley, Richard F, Burba, Jacob, Cain, Christopher, Carey, Steven, Carilli, Chris L, Cheng, Carina, DeBoer, David R, de Lera Acedo, Eloy, Dexter, Matt, Dillon, Joshua S, Eksteen, Nico, Ely, John, Ewall-Wice, Aaron, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steven R, Gale-Sides, Kingsley, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hazelton, Bryna J, Hewitt, Jacqueline N, Hickish, Jack, Jacobs, Daniel C, Julius, Austin, Kariseb, MacCalvin, Kern, Nicholas S, Kerrigan, Joshua, Kittiwisit, Piyanat, Kohn, Saul A, Kolopanis, Matthew, Lanman, Adam, Plante, Paul La, Liu, Adrian, Loots, Anita, MacMahon, David Harold Edward, Malan, Lourence, Malgas, Cresshim, Malgas, Keith, Marero, Bradley, Martinot, Zachary E, Mesinger, Andrei, Molewa, Mathakane, Morales, Miguel F, Mosiane, Tshegofalang, Murray, Steven G, Neben, Abraham R, Nikolic, Bojan, Nuwegeld, Hans, Parsons, Aaron R, Patra, Nipanjana, Pieterse, Samantha, Razavi-Ghods, Nima, Robnett, James, Rosie, Kathryn, Sims, Peter, Sipple, Jackson, Smith, Craig, Swarts, Hilton, Thyagarajan, Nithyanandan, van Wyngaarden, Pieter, Williams, Peter K G, Zheng, Haoxuan

    “…Abstract Observations with radio arrays that target the 21-cm signal originating from the early Universe suffer from a variety of systematic effects. An…”
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  13. 13

    Characterization of inpaint residuals in interferometric measurements of the epoch of reionization by Pagano, Michael, Liu, Jing, Liu, Adrian, Kern, Nicholas S, Ewall-Wice, Aaron, Bull, Philip, Pascua, Robert, Ravanbakhsh, Siamak, Abdurashidova, Zara, Adams, Tyrone, Aguirre, James E, Alexander, Paul, Ali, Zaki S, Baartman, Rushelle, Balfour, Yanga, Beardsley, Adam P, Bernardi, Gianni, Billings, Tashalee S, Bowman, Judd D, Bradley, Richard F, Burba, Jacob, Carey, Steven, Carilli, Chris L, Cheng, Carina, DeBoer, David R, de Lera Acedo, Eloy, Dexter, Matt, Dillon, Joshua S, Eksteen, Nico, Ely, John, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steven R, Gale-Sides, Kingsley, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hazelton, Bryna J, Hewitt, Jacqueline N, Hickish, Jack, Jacobs, Daniel C, Julius, Austin, Kariseb, MacCalvin, Kerrigan, Joshua, Kittiwisit, Piyanat, Kohn, Saul A, Kolopanis, Matthew, Lanman, Adam, La Plante, Paul, Loots, Anita, MacMahon, David Harold Edward, Malan, Lourence, Malgas, Cresshim, Malgas, Keith, Marero, Bradley, Martinot, Zachary E, Mesinger, Andrei, Molewa, Mathakane, Morales, Miguel F, Mosiane, Tshegofalang, Neben, Abraham R, Nikolic, Bojan, Nuwegeld, Hans, Parsons, Aaron R, Patra, Nipanjana, Pieterse, Samantha, Razavi-Ghods, Nima, Robnett, James, Rosie, Kathryn, Sims, Peter, Smith, Craig, Swarts, Hilton, Thyagarajan, Nithyanandan, van Wyngaarden, Pieter, Williams, Peter K G, Zheng, Haoxuan

    “…ABSTRACT To mitigate the effects of Radio Frequency Interference (RFI) on the data analysis pipelines of 21 cm interferometric instruments, numerous inpaint…”
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  14. 14

    The HERA-19 Commissioning Array: Direction-dependent Effects by Kohn, Saul A., Aguirre, James E., La Plante, Paul, Billings, Tashalee S., Chichura, Paul M., Fortino, Austin F., Igarashi, Amy S., Benefo, Roshan K., Gallardo, Samavarti, Martinot, Zachary E., Nunhokee, Chuneeta D., Kern, Nicholas S., Bull, Philip, Liu, Adrian, Alexander, Paul, Ali, Zaki S., Beardsley, Adam P., Bernardi, Gianni, Bowman, Judd D., Bradley, Richard F., Carilli, Chris L., Cheng, Carina, DeBoer, David R., Acedo, Eloy de Lera, Dillon, Joshua S., Ewall-Wice, Aaron, Fadana, Gcobisa, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steven R., Glendenning, Brian, Greig, Bradley, Grobbelaar, Jasper, Hazelton, Bryna J., Hewitt, Jacqueline N., Hickish, Jack, Jacobs, Daniel C., Julius, Austin, Kariseb, MacCalvin, Kolopanis, Matthew, Lekalake, Telalo, Loots, Anita, MacMahon, David, Malan, Lourence, Malgas, Cresshim, Maree, Matthys, Mathison, Nathan, Matsetela, Eunice, Mesinger, Andrei, Morales, Miguel F., Neben, Abraham R., Nikolic, Bojan, Parsons, Aaron R., Patra, Nipanjana, Pieterse, Samantha, Pober, Jonathan C., Razavi-Ghods, Nima, Ringuette, Jon, Robnett, James, Rosie, Kathryn, Sell, Raddwine, Smith, Craig, Syce, Angelo, Tegmark, Max, Thyagarajan, Nithyanandan, Williams, Peter K. G., Zheng, Haoxuan

    Published in The Astrophysical journal (01-09-2019)
    “…Foreground power dominates the measurements of interferometers that seek a statistical detection of highly-redshifted H i emission from the Epoch of…”
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  15. 15

    Impact of instrument and data characteristics in the interferometric reconstruction of the 21 cm power spectrum by Gorce, Adélie, Ganjam, Samskruthi, Liu, Adrian, Murray, Steven G, Abdurashidova, Zara, Adams, Tyrone, Aguirre, James E, Alexander, Paul, Ali, Zaki S, Baartman, Rushelle, Balfour, Yanga, Beardsley, Adam P, Bernardi, Gianni, Billings, Tashalee S, Bowman, Judd D, Bradley, Richard F, Bull, Philip, Burba, Jacob, Carey, Steven, Carilli, Chris L, Cheng, Carina, DeBoer, David R, Acedo, Eloy de Lera, Dexter, Matt, Dillon, Joshua S, Eksteen, Nico, Ely, John, Ewall-Wice, Aaron, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steven R, Gale-Sides, Kingsley, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hazelton, Bryna J, Hewitt, Jacqueline N, Hickish, Jack, Jacobs, Daniel C, Julius, Austin, Kariseb, MacCalvin, Kern, Nicholas S, Kerrigan, Joshua, Kittiwisit, Piyanat, Kohn, Saul A, Kolopanis, Matthew, Lanman, Adam, Plante, Paul La, Loots, Anita, MacMahon, David Harold Edward, Malan, Lourence, Malgas, Cresshim, Malgas, Keith, Marero, Bradley, Martinot, Zachary E, Mesinger, Andrei, Molewa, Mathakane, Morales, Miguel F, Mosiane, Tshegofalang, Neben, Abraham R, Nikolic, Bojan, Nuwegeld, Hans, Parsons, Aaron R, Patra, Nipanjana, Pieterse, Samantha, Pober, Jonathan C, Razavi-Ghods, Nima, Robnett, James, Rosie, Kathryn, Sims, Peter, Swarts, Hilton, Thyagarajan, Nithyanandan, van Wyngaarden, Pieter, Williams, Peter K G, Zheng, Haoxuan

    “…ABSTRACT Combining the visibilities measured by an interferometer to form a cosmological power spectrum is a complicated process. In a delay-based analysis,…”
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    Journal Article
  16. 16

    Search for the Epoch of Reionization with HERA: upper limits on the closure phase delay power spectrum by Keller, Pascal M, Nikolic, Bojan, Thyagarajan, Nithyanandan, Carilli, Chris L, Bernardi, Gianni, Charles, Ntsikelelo, Bester, Landman, Smirnov, Oleg M, Kern, Nicholas S, Dillon, Joshua S, Hazelton, Bryna J, Morales, Miguel F, Jacobs, Daniel C, Parsons, Aaron R, Abdurashidova, Zara, Adams, Tyrone, Aguirre, James E, Alexander, Paul, Ali, Zaki S, Baartman, Rushelle, Balfour, Yanga, Beardsley, Adam P, Billings, Tashalee S, Bowman, Judd D, Bradley, Richard F, Bull, Philip, Burba, Jacob, Carey, Steven, Cheng, Carina, DeBoer, David R, Acedo, Eloy de Lera, Dexter, Matt, Eksteen, Nico, Ely, John, Ewall-Wice, Aaron, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steven R, Gale-Sides, Kingsley, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hewitt, Jacqueline N, Hickish, Jack, Julius, Austin, Kariseb, MacCalvin, Kerrigan, Joshua, Kittiwisit, Piyanat, Kohn, Saul A, Kolopanis, Matthew, Lanman, Adam, Plante, Paul La, Liu, Adrian, Loots, Anita, Ma, Yin-Zhe, MacMahon, David Harold Edward, Malan, Lourence, Malgas, Cresshim, Malgas, Keith, Marero, Bradley, Martinot, Zachary E, Mesinger, Andrei, Molewa, Mathakane, Mosiane, Tshegofalang, Murray, Steven G, Neben, Abraham R, Nuwegeld, Hans, Pascua, Robert, Patra, Nipanjana, Pieterse, Samantha, Pober, Jonathan C, Razavi-Ghods, Nima, Robnett, James, Rosie, Kathryn, Santos, Mario G, Sims, Peter, Smith, Craig, Swarts, Hilton, Van Wyngaarden, Pieter, Williams, Peter K G, Zheng, Haoxuan

    “…ABSTRACT Radio interferometers aiming to measure the power spectrum of the redshifted 21 cm line during the Epoch of Reionization (EoR) need to achieve an…”
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  17. 17

    Direct Optimal Mapping for 21 cm Cosmology: A Demonstration with the Hydrogen Epoch of Reionization Array by Xu, Zhilei, Hewitt, Jacqueline N., Chen, Kai-Feng, Kim, Honggeun, Dillon, Joshua S., Kern, Nicholas S., Morales, Miguel F., Hazelton, Bryna J., Byrne, Ruby, Fagnoni, Nicolas, Acedo, Eloy de Lera, Abdurashidova, Zara, Adams, Tyrone, Aguirre, James E., Alexander, Paul, Ali, Zaki S., Baartman, Rushelle, Balfour, Yanga, Beardsley, Adam P., Bernardi, Gianni, Billings, Tashalee S., Bowman, Judd D., Bradley, Richard F., Bull, Philip, Burba, Jacob, Carey, Steven, Carilli, Chris L., Cheng, Carina, DeBoer, David R., Dexter, Matt, Eksteen, Nico, Ely, John, Ewall-Wice, Aaron, Fritz, Randall, Furlanetto, Steven R., Gale-Sides, Kingsley, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hickish, Jack, Jacobs, Daniel C., Julius, Austin, Kariseb, MacCalvin, Kerrigan, Joshua, Kittiwisit, Piyanat, Kohn, Saul A., Kolopanis, Matthew, Lanman, Adam, Plante, Paul La, Liu, Adrian, Loots, Anita, Ma, Yin-Zhe, Edward MacMahon, David Harold, Malan, Lourence, Malgas, Cresshim, Malgas, Keith, Marero, Bradley, Martinot, Zachary E., Mesinger, Andrei, Molewa, Mathakane, Mosiane, Tshegofalang, Murray, Steven G., Neben, Abraham R., Nikolic, Bojan, Nuwegeld, Hans, Parsons, Aaron R., Patra, Nipanjana, Pieterse, Samantha, Pober, Jonathan C., Razavi-Ghods, Nima, Robnett, James, Rosie, Kathryn, Sims, Peter, Smith, Craig, Swarts, Hilton, Thyagarajan, Nithyanandan, Wyngaarden, Pieter Van Van, Williams, Peter K. G., Zheng, Haoxuan

    Published in The Astrophysical journal (01-10-2022)
    “…Abstract Motivated by the desire for wide-field images with well-defined statistical properties for 21 cm cosmology, we implement an optimal mapping pipeline…”
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  18. 18

    Bayesian jackknife tests with a small number of subsets: application to HERA 21 cm power spectrum upper limits by Wilensky, Michael J, Kennedy, Fraser, Bull, Philip, Dillon, Joshua S, Abdurashidova, Zara, Adams, Tyrone, Aguirre, James E, Alexander, Paul, Ali, Zaki S, Baartman, Rushelle, Balfour, Yanga, Beardsley, Adam P, Bernardi, Gianni, Billings, Tashalee S, Bowman, Judd D, Bradley, Richard F, Burba, Jacob, Carey, Steven, Carilli, Chris L, Cheng, Carina, DeBoer, David R, de Lera Acedo, Eloy, Dexter, Matt, Eksteen, Nico, Ely, John, Ewall-Wice, Aaron, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steven R, Gale-Sides, Kingsley, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hazelton, Bryna J, Hewitt, Jacqueline N, Hickish, Jack, Jacobs, Daniel C, Julius, Austin, Kariseb, MacCalvin, Kern, Nicholas S, Kerrigan, Joshua, Kittiwisit, Piyanat, Kohn, Saul A, Kolopanis, Matthew, Lanman, Adam, La Plante, Paul, Liu, Adrian, Loots, Anita, MacMahon, David Harold Edward, Malan, Lourence, Malgas, Cresshim, Malgas, Keith, Marero, Bradley, Martinot, Zachary E, Mesinger, Andrei, Molewa, Mathakane, Morales, Miguel F, Mosiane, Tshegofalang, Murray, Steven G, Neben, Abraham R, Nikolic, Bojan, Nuwegeld, Hans, Parsons, Aaron R, Patra, Nipanjana, Pieterse, Samantha, Razavi-Ghods, Nima, Robnett, James, Rosie, Kathryn, Sims, Peter, Swarts, Hilton, Thyagarajan, Nithyanandan, van Wyngaarden, Pieter, Williams, Peter K G, Zheng, Haoxuan

    “…ABSTRACT We present a Bayesian jackknife test for assessing the probability that a data set contains biased subsets, and, if so, which of the subsets are…”
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  19. 19

    Effects of model incompleteness on the drift-scan calibration of radio telescopes by Gehlot, Bharat K, Jacobs, Daniel C, Bowman, Judd D, Mahesh, Nivedita, Murray, Steven G, Kolopanis, Matthew, Beardsley, Adam P, Abdurashidova, Zara, Aguirre, James E, Alexander, Paul, Ali, Zaki S, Balfour, Yanga, Bernardi, Gianni, Billings, Tashalee S, Bradley, Richard F, Bull, Phil, Burba, Jacob, Carey, Steve, Carilli, Chris L, Cheng, Carina, DeBoer, David R, Dexter, Matt, de Lera Acedo, Eloy, Dillon, Joshua S, Ely, John, Ewall-Wice, Aaron, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steven R, Gale-Sides, Kingsley, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hazelton, Bryna J, Hewitt, Jacqueline N, Hickish, Jack, Julius, Austin, Kern, Nicholas S, Kerrigan, Joshua, Kittiwisit, Piyanat, Kohn, Saul A, Lanman, Adam, La Plante, Paul, Lekalake, Telalo, Lewis, David, Liu, Adrian, Ma, Yin-Zhe, MacMahon, David, Malan, Lourence, Malgas, Cresshim, Maree, Matthys, Martinot, Zachary E, Matsetela, Eunice, Mesinger, Andrei, Molewa, Mathakane, Monsalve, Raul A, Morales, Miguel F, Mosiane, Tshegofalang, Neben, Abraham R, Nikolic, Bojan, Parsons, Aaron R, Pascua, Robert, Patra, Nipanjana, Pieterse, Samantha, Pober, Jonathan C, Razavi-Ghods, Nima, Ringuette, Jon, Robnett, James, Rosie, Kathryn, Santos, Mario G, Sims, Peter, Smith, Craig, Syce, Angelo, Tegmark, Max, Thyagarajan, Nithyanandan, Williams, Peter K G, Zheng, Haoxuan

    “…ABSTRACT Precision calibration poses challenges to experiments probing the redshifted 21-cm signal of neutral hydrogen from the Cosmic Dawn and Epoch of…”
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  20. 20

    Measuring HERA's Primary Beam in Situ: Methodology and First Results by Nunhokee, Chuneeta D., Parsons, Aaron R., Kern, Nicholas S., Nikolic, Bojan, Pober, Jonathan C., Bernardi, Gianni, Carilli, Chris L., Abdurashidova, Zara, Aguirre, James E., Alexander, Paul, Ali, Zaki S., Balfour, Yanga, Beardsley, Adam P., Billings, Tashalee S., Bowman, Judd D., Bradley, Richard F., Burba, Jacob, Cheng, Carina, DeBoer, David R., Dexter, Matt, Acedo, Eloy de Lera, Dillon, Joshua S., Ewall-Wice, Aaron, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steve R., Gale-Sides, Kingsley, Glendenning, Brian, Gorthi, Deepthi, Greig, Bradley, Grobbelaar, Jasper, Halday, Ziyaad, Hazelton, Bryna J., Hewitt, Jacqueline N., Jacobs, Daniel C., Julius, Austin, Kerrigan, Joshua, Kittiwisit, Piyanat, Kohn, Saul A., Kolopanis, Matthew, Lanman, Adam, Plante, Paul La, Lekalake, Telalo, Liu, Adrian, MacMahon, David, Malan, Lourence, Malgas, Cresshim, Maree, Matthys, Martinot, Zachary E., Matsetela, Eunice, Mesinger, Andrei, Molewa, Mathakane, Morales, Miguel F., Mosiane, Tshegofalang, Neben, Abraham R., Patra, Nipanjana, Pieterse, Samantha, Razavi-Ghods, Nima, Ringuette, Jon, Robnett, James, Rosie, Kathryn, Sims, Peter, Smith, Craig, Syce, Angelo, Thyagarajan, Nithyanandan, Williams, Peter K. G., Zheng, Haoxuan

    Published in The Astrophysical journal (01-07-2020)
    “…The central challenge in 21 cm cosmology is isolating the cosmological signal from bright foregrounds. Many separation techniques rely on the accurate…”
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