Search Results - "Boyce, Hope"

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  1. 1

    A Deep CFHT Optical Search for a Counterpart to the Possible Neutron Star-Black Hole Merger GW190814 by Vieira, Nicholas, Ruan, John J., Haggard, Daryl, Drout, Maria R., Nynka, Melania C., Boyce, Hope, Spekkens, Kristine, Safi-Harb, Samar, Carlberg, Raymond G., Fernández, Rodrigo, Piro, Anthony L., Afsariardchi, Niloufar, Moon, Dae-Sik

    Published in The Astrophysical journal (01-06-2020)
    “…We present a wide-field optical imaging search for electromagnetic counterparts to the likely neutron star-black hole (NS-BH) merger GW190814/S190814bv. This…”
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    Journal Article
  2. 2

    Observational Probes of Supermassive Black Hole Environments: From the Event Horizon to the the Sphere of Influence by Boyce, Hope

    Published 01-01-2022
    “…There exists a two-way relationship between small-scale, short-timescale phenomena (e.g. transient accretion events) around supermassive black holes (SMBHs)…”
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    Dissertation
  3. 3
  4. 4

    Monitoring the Closest Supermassive Black Hole: X-Ray and Infrared Variability of Sgr A by Boyce, Hope

    Published 01-01-2018
    “…Emission from Sgr A* is highly variable at both X-ray and infrared (IR) wavelengths. Observations over the last ~20 years have detected X-ray flares that rise…”
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    Dissertation
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    First Very Long Baseline Interferometry Detections at 870{\mu}m by Raymond, Alexander W, Doeleman, Sheperd S, Blackburn, Lindy, Bower, Geoffrey C, Bremer, Michael, García, Roberto, Gentaz, Olivier, Goddi, Ciriaco, Hecht, Michael H, Koay, Jun Yi, Krichbaum, Thomas P, Lo, Wen-Ping, Moran, James M, Pesce, Dominic W, Ramakrishnan, Venkatessh, Rottmann, Helge, Torne, Pablo, Baczko, Anne-Kathrin, Bandyopadhyay, Bidisha, Bauböck, Michi, Bintley, Dan, Blundell, Raymond, Boyce, Hope, Bustamante, Sandra, Chen, Yongjun, Cheng, Xiaopeng, Conroy, Nicholas S, Cruz-Osorio, Alejandro, Dempsey, Jessica, Emami, Razieh, Farah, Joseph, Fomalont, Edward, Fontana, Anne-Laure, Foschi, Marianna, Fuentes, Antonio, Galison, Peter, Gu, Minfeng, Heumann, Dirk, Ho, Paul, Huang, Chih-Wei L, Huang, Lei, Impellizzeri, C. M. Violette, Issaoun, Sara, Jeter, Britton, Jiménez-Rosales, Alejandra, Johnson, Michael D, Jones, Adam C, Joshi, Abhishek V, Jung, Taehyun, Karuppusamy, Ramesh, Kino, Motoki, Kofuji, Yutaro, Koch, Patrick M, Koyama, Shoko, Kramer, Michael, Kuo, Cheng-Yu, Lowitz, Amy E, MacDonald, Nicholas R, Mahieu, Sylvain, Maier, Doris, Medeiros, Lia, Menten, Karl M, Montgomery, Joshua, Nagar, Neil M, Nakamura, Masanori, Narayanan, Gopal, Natarajan, Iniyan, Nathanail, Antonios, Nowak, Michael A, Okino, Hiroki, Oyama, Tomoaki, Park, Jongho, Pen, Ue-Li, Piétu, Vincent, PopStefanija, Aleksandar, Porth, Oliver, Prather, Ben, Raffin, Philippe A, Ricarte, Angelo, Roelofs, Freek, Ros, Eduardo, Roshanineshat, Arash, Ruiz, Ignacio, Schloerb, F. Peter, Shen, Zhiqiang, Srinivasan, Ranjani, Tetarenko, Alexandra J, Toscano, Teresa, Traianou, Efthalia, Trippe, Sascha, Turk, Matthew, Vos, Jesse, Wiik, Kaj, Yadlapalli, Nitika, Yamaguchi, Paul, Yoon, Doosoo, Yu, Wei, Yuan, Feng, Yuan, Ye-Fei, Zensus, J. Anton

    Published 09-10-2024
    “…The Astronomical Journal, Volume 168, Issue 3, id.130, 19 pp. 2024 The first very long baseline interferometry (VLBI) detections at 870$\mu$m wavelength…”
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    Journal Article
  8. 8

    General relativistic MHD simulations of non-thermal flaring in Sagittarius A by Chatterjee, Koushik, Markoff, Sera, Neilsen, Joseph, Younsi, Ziri, Witzel, Gunther, Tchekhovskoy, Alexander, Yoon, Doosoo, Ingram, Adam, van der Klis, Michiel, Boyce, Hope, Do, Tuan, Haggard, Daryl, Nowak, Michael

    Published 16-09-2021
    “…Sagittarius A* exhibits regular variability in its multiwavelength emission, including daily X-ray flares and roughly continuous near-infrared (NIR)…”
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    Journal Article
  9. 9
  10. 10

    A search for pulsars around Sgr A in the first Event Horizon Telescope dataset by Liu, Kuo, Cordes, James M, Ransom, Scott M, Chan, Chi-kwan, Crew, Geoffrey B, Rottmann, Helge, Abbate, Federico, Pen, Ue-Li, Raymond, Alexander W, Kramer, Carsten, John, David, Rygl, Kazi L. J, Alberdi, Antxon, Bach, Uwe, Balokovic, Mislav, Barrett, John, Bauboeck, Michi, Benson, Bradford A, Boyce, Hope, Bremer, Michael, Brinkerink, Christiaan D, Brissenden, Roger, Britzen, Silke, Broguiere, Dominique, Bustamante, Sandra, Byun, Do-Young, Chen, Yongjun, Cheng, Xiaopeng, Conroy, Nicholas S, Cruz-Osorio, Alejandro, Dempsey, Jessica, Dhruv, Vedant, Dougal, Sean, Emami, Razieh, Farah, Joseph, Fish, Vincent L, Foschi, Marianna, Freeman, William T, Friberg, Per, Fromm, Christian M, Fuentes, Antonio, Gomez, Jose L, Gu, Minfeng, Hesper, Ronald, Heumann, Dirk, Ho, Luis C, James, David J, Jannuzi, Buell T, Jeter, Britton, Kim, Jongsoo, Kino, Motoki, Kofuji, Yutaro, Lauer, Tod R, Lee, Daeyoung, Lee, Sang-Sung, Leung, Po Kin, Lico, Rocco, Lindqvist, Michael, Lisakov, Mikhail, Liuzzo, Elisabetta, Lo, Wen-Ping, Marscher, Alan P, Menten, Karl M, Mizuno, Izumi, Moriyama, Kotaro, Mus, Alejandro, Musoke, Gibwa, Myserlis, Ioannis, Nagai, Hiroshi, Narayanan, Gopal, Natarajan, Iniyan, Neilsen, Joey, Nowak, Michael A, Okino, Hiroki, Oyama, Tomoaki, Park, Jongho, Pietu, Vincent, Prather, Ben, Pu, Hung-Yi, Ramakrishnan, Venkatessh, Rao, Ramprasad, Sasada, Mahito, Savolainen, Tuomas, Schonfeld, Jonathan, Sun, He, Tetarenko, Alexandra J, Titus, Michael, Toscano, Teresa, van Bemmel, Ilse, van Langevelde, Huib Jan, van Rossum, Daniel R, Wardle, John, Wiik, Kaj, Witzel, Gunther, Wong, George N, Yoon, Doosoo, Yu, Wei, Yuan, Feng, Yuan, Ye-Fei, Zensus, J. Anton

    Published 29-08-2023
    “…The Event Horizon Telescope (EHT) observed in 2017 the supermassive black hole at the center of the Milky Way, Sagittarius A* (Sgr A*), at a frequency of 228.1…”
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    Journal Article
  11. 11

    Comparison of Polarized Radiative Transfer Codes used by the EHT Collaboration by Dexter, Jason, Pu, Hung-Yi, Bronzwaer, Thomas, Davelaar, Jordy, Wong, George N, Akiyama, Kazunori, Alberdi, Antxon, Algaba, Juan Carlos, Anantua, Richard, Baczko, Anne-Kathrin, Ball, David, Bauböck, Michi, Boyce, Hope, Bremer, Michael, Brinkerink, Christiaan D, Brissenden, Roger, Broderick, Avery E, Broguiere, Dominique, Ceccobello, Chiara, Chael, Andrew, Chang, Dominic O, Chatterjee, Shami, Chen, Ming-Tang, Chen, Yongjun, Christian, Pierre, Conroy, Nicholas S, Cui, Yuzhu, Deane, Roger, Dempsey, Jessica, Dhruv, Vedant, Farah, Joseph, Fish, Vincent L, Fomalont, Ed, Ford, H. Alyson, Freeman, William T, Friberg, Per, Galison, Peter, García, Roberto, Gentaz, Olivier, Gu, Minfeng, Hesper, Ronald, Honma, Mareki, Ikeda, Shiro, Inoue, Makoto, James, David J, Janssen, Michael, Jorstad, Svetlana, Jung, Taehyun, Karami, Mansour, Kettenis, Mark, Kocherlakota, Prashant, Kofuji, Yutaro, Krichbaum, Thomas P, La Bella, Noemi, Levis, Aviad, Lobanov, Andrei P, MacDonald, Nicholas R, Mao, Jirong, Marchili, Nicola, Markoff, Sera, Matsushita, Satoki, Matthews, Lynn D, Medeiros, Lia, Menten, Karl M, Michalik, Daniel, Mizuno, Yosuke, Moran, James M, Nakamura, Masanori, Narayan, Ramesh, Narayanan, Gopal, Natarajan, Iniyan, Nathanail, Antonios, Ni, Chunchong, Oh, Junghwan, Olivares, Héctor, Ortiz-León, Gisela N, Palumbo, Daniel C. M, Paraschos, Georgios Filippos, Patel, Nimesh, Plambeck, Richard, Porth, Oliver, Preciado-López, Jorge A, Psaltis, Dimitrios, Rezzolla, Luciano, Romero-Cañizales, Cristina, Rottmann, Helge, Schloerb, F. Peter, SooHoo, Jason, Tiede, Paul, Titus, Michael, Torne, Pablo, van Langevelde, Huib Jan, van Rossum, Daniel R, Weintroub, Jonathan, Wielgus, Maciek, Wu, Qingwen, Yoon, Doosoo, Young, Ken, Yuan, Ye-Fei, Zensus, J. Anton

    Published 21-03-2023
    “…Interpretation of resolved polarized images of black holes by the Event Horizon Telescope (EHT) requires predictions of the polarized emission observable by an…”
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    Journal Article
  12. 12

    A Deep CFHT Optical Search for a Counterpart to the Possible Neutron Star -- Black Hole Merger GW190814 by Vieira, Nicholas, Ruan, John J, Haggard, Daryl, Drout, Maria R, Nynka, Melania C, Boyce, Hope, Spekkens, Kristine, Safi-Harb, Samar, Carlberg, Raymond G, Fernández, Rodrigo, Piro, Anthony L, Afsariardchi, Niloufar, Moon, Dae-Sik

    Published 13-05-2020
    “…We present a wide-field optical imaging search for electromagnetic counterparts to the likely neutron star - black hole (NS-BH) merger GW190814/S190814bv. This…”
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    Journal Article
  13. 13

    Event Horizon Telescope observations of the jet launching and collimation in Centaurus A by Falcke, Heino, Wielgus, Maciek, Akiyama, Kazunori, Blackburn, Lindy, Chan, Chi-kwan, Davelaar, Jordy, Issaoun, Sara, Kim, Junhan, Koay, Jun Yi, Liu, Jun, Markoff, Sera, Müller, Cornelia, Ni, Chunchong, Ramakrishnan, Venkatessh, Rygl, Kazi L. J, van Bemmel, Ilse, Alef, Walter, Asada, Keiichi, Barrett, John, Benson, Bradford A, Boland, Wilfred, Bower, Geoffrey C, Bremer, Michael, Britzen, Silke, Broguiere, Dominique, Byun, Do-Young, Carlstrom, John E, Chatterjee, Shami, Chen, Yongjun, Christian, Pierre, Cordes, James M, Dempsey, Jessica, Dexter, Jason, Doeleman, Sheperd S, Eatough, Ralph P, Fish, Vincent L, Ford, H. Alyson, Galison, Peter, Gammie, Charles F, García, Roberto, Gómez-Ruiz, Arturo I, Gu, Minfeng, Hada, Kazuhiro, Haggard, Daryl, Hecht, Michael H, Hesper, Ronald, Honma, Mareki, Huang, Lei, James, David J, Jannuzi, Buell T, Jeter, Britton, Jimenez-Rosales, Alejandra, Jung, Taehyun, Karuppusamy, Ramesh, Kawashima, Tomohisa, Keating, Garrett K, Kim, Dong-Jin, Kim, Jongsoo, Kofuji, Yutaro, Koyama, Shoko, Lee, Sang-Sung, Levis, Aviad, Li, Yan-Rong, Liu, Kuo, Lobanov, Andrei P, Lonsdale, Colin, Mao, Jirong, Menten, Karl M, Mizuno, Izumi, Moran, James M, Nagar, Neil M, Narayanan, Gopal, Neilsen, Joey, Neri, Roberto, Nowak, Michael A, Oyama, Tomoaki, Özel, Feryal, Patel, Nimesh, Pen, Ue-Li, Porth, Oliver, Psaltis, Dimitrios, Pu, Hung-Yi, Rao, Ramprasad, Rawlings, Mark G, Rogers, Alan, Rose, Mel, Sánchez, Salvador, Sánchez-Arguelles, David, Schuster, Karl-Friedrich, Shao, Lijing, Sohn, Bong Won, Tetarenko, Alexandra J, Tiede, Paul, Trippe, Sascha, van Langevelde, Huib Jan, Ward-Thompson, Derek, Weintroub, Jonathan, Wong, George N, Younsi, Ziri, Zhao, Shan-Shan

    Published 05-11-2021
    “…Nature Astronomy, July 2021, Volume 5, p. 1017-1028 Very-long-baseline interferometry (VLBI) observations of active galactic nuclei at millimeter wavelengths…”
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    Journal Article
  14. 14

    The Variability of the Black-Hole Image in M87 at the Dynamical Time Scale by Ozel, Feryal, Medeiros, Lia, Dougall, Sean T, Chan, Chi-kwan, Prather, Ben S, Wong, George N, Akiyama, Kazunori, Alberdi, Antxon, Algaba, Juan Carlos, Anantua, Richard, Baczko, Anne-Kathrin, Ball, David R, Barrett, John, Benson, Bradford A, Bouman, Katherine L, Boyce, Hope A, Chael, Andrew, Chatterjee, Koushik, Cui, Yuzhu, Davelaar, Jordy, De Laurentis, Mariafelicia, Desvignes, Gregory, Dexter, Jason, Falcke, Heino, Farah, Joseph R, Fish, Vincent, Fomalont, Edward B, Fraga-Encinas, Raquel, Friberg, Per, Fuentes, Antonio, Gomez-Ruiz, Arturo I, Gu, Minfeng, Gurwell, Mark A, Haggard, Daryl, Ho, Paul T, Huang, Chih-Wei L, Huang, Lei, Ikeda, Shiro, Issaoun, Sara, Jannuzi, Buell T, Jiang, Wu, Johnson, Michael D, Karami, Mansour, Kettenis, Mark, Kim, Dong-Jin, Kofuji, Yutaro, Koch, Patrick M, Kramer, Michael, Krichbaum, Thomas P, Kuo, Cheng-Yu, Lauer, Tod R, Lindahl, Greg, Liu, Kuo, Lo, Wen-Ping, Lobanov, Andrei, Loinard, Laurent, MacDonald, Nicholas R, Marchili, Nicola, Marscher, Alan P, Matthews, Lynn, Menten, Karl M, Moriyama, Kotaro, Nakamura, Masanori, Narayan, Ramesh, Natarajan, Iniyan, Ni, Chunchong, Okino, Hiroki, Olivares, Hector, Oyama, Tomoaki, Pietu, Vincent, Plambeck, Richard L, Potzl, Felix, Preciado-López, Jorge A, Rezzolla, Luciano, Ripperda, Bart, Rogers, Alan E. E, Ros, Eduardo, Roshanineshat, Arash, Rottmann, Helge, Ruszczyk, Chet, Sanchez, Salvador, Sasada, Mahito, Savolainen, Tuomas, Schloerb, F Peter, Shen, Zhi-Qiang, Sun, He, Tazaki, Fumie, Titus, Michael, Trippe, Sascha, van Bemmel, Ilse, van Langevelde, Huib Jan, van Rossum, Daniel R, Wagner, Jan, Ward-Thompson, Derek, Wex, Norbert, Wiik, Kaj, Yoon, DooSoo, Young, Ken H, Younsi, Ziri, Yuan, Feng

    Published 02-11-2021
    “…The black-hole images obtained with the Event Horizon Telescope (EHT) are expected to be variable at the dynamical timescale near their horizons. For the black…”
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    Journal Article
  15. 15

    Constraints on black-hole charges with the 2017 EHT observations of M87 by Kocherlakota, Prashant, Mizuno, Yosuke, Younsi, Ziri, Algaba, Juan Carlos, Anantua, Richard, Asada, Keiichi, Balokovic, Mislav, Bintley, Dan, Bouman, Katherine L, Bremer, Michael, Broderick, Avery E, Byun, Do-Young, Carlstrom, John E, Chan, Chi-kwan, Chen, Ming-Tang, Chesler, Paul M, Crawford, Thomas M, Cruz-Osorio, Alejandro, Cui, Yuzhu, Davelaar, Jordy, De Laurentis, Mariafelicia, Desvignes, Gregory, Eatough, Ralph P, Fomalont, Ed, Galison, Peter, Gentaz, Olivier, Georgiev, Boris, Goddi, Ciriaco, Gomez, Jose L, Gurwell, Mark, Haggard, Daryl, Hecht, Michael H, Ho, Luis C, Ho, Paul, Honma, Mareki, Ikeda, Shiro, James, David J, Janssen, Michael, Jimenez-Rosales, Alejandra, Johnson, Michael D, Jung, Taehyun, Karami, Mansour, Kawashima, Tomohisa, Kim, Dong-Jin, Kim, Jongsoo, Kino, Motoki, Koay, Jun Yi, Koyama, Shoko, Kramer, Carsten, Kuo, Cheng-Yu, Levis, Aviad, Li, Yan-Rong, Li, Zhiyuan, Lindqvist, Michael, Lico, Rocco, Lindahl, Greg, Liu, Jun, Lobanov, Andrei P, Loinard, Laurent, Mao, Jirong, Markoff, Sera, Marti-Vidal, Ivan, Matsushita, Satoki, Matthews, Lynn D, Medeiros, Lia, Menten, Karl M, Moscibrodzka, Monika, Musoke, Gibwa, Neilsen, Joseph, Neri, Roberto, Oyama, Tomoaki, Ozel, Feryal, Palumbo, Daniel C. M, Park, Jongho, Pen, Ue-Li, Pesce, Dominic W, Pietu, Vincent, Porth, Oliver, Preciado-Lopez, Jorge A, Ramakrishnan, Venkatessh, Rawlings, Mark G, Roelofs, Freek, Roy, Alan L, Sanchez-Arguelles, David, Schloerb, F. Peter, Schuster, Karl-Friedrich, Small, Des, Sohn, Bong Won, SooHoo, Jason, Tiede, Paul, Torne, Pablo, Trent, Tyler, van Bemmel, Ilse, Wardle, John, Weintroub, Jonathan, Wharton, Robert, Young, Ken, Zensus, J. Anton, Zhao, Guang-Yao, Collaboration, The EHT

    Published 19-05-2021
    “…Our understanding of strong gravity near supermassive compact objects has recently improved thanks to the measurements made by the Event Horizon Telescope…”
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    Journal Article
  16. 16

    The Polarized Image of a Synchrotron Emitting Ring of Gas Orbiting a Black Hole by Palumbo, Daniel C. M, Himwich, Elizabeth, Chang, Dominic O, Akiyama, Kazunori, Alef, Walter, Azulay, Rebecca, Benson, Bradford A, Blackburn, Lindy, Boland, Wilfred, Bower, Geoffrey C, Boyce, Hope, Bremer, Michael, Brinkerink, Christiaan D, Brissenden, Roger, Britzen, Silke, Broguiere, Dominique, Bronzwaer, Thomas, Byun, Do-Young, Chatterjee, Koushik, Chesler, Paul M, Cho, Ilje, Conway, John E, Crew, Geoffrey B, Falcke, Heino, Farah, Joseph, Fish, Vincent L, Ford, H. Alyson, Friberg, Per, Fromm, Christian M, Fuentes, Antonio, Gold, Roman, Gu, Minfeng, Hada, Kazuhiro, Haggard, Daryl, Hesper, Ronald, Inoue, Makoto, Jannuzi, Buell T, Jeter, Britton, Karami, Mansour, Kettenis, Mark, Kim, Dong-Jin, Kofuji, Yutaro, Koch, Patrick M, Krichbaum, Thomas P, Kuo, Cheng-Yu, Lauer, Tod R, Lee, Sang-Sung, Lindahl, Greg, Liu, Kuo, Liuzzo, Elisabetta, Lo, Wen-Pin, Loinard, Laurent, Lonsdale, Colin, Lu, Ru-Sen, MacDonald, Nicholas R, Marchili, Nicola, Marrone, Daniel P, Matsushita, Satoki, Menten, Karl M, Moran, James M, Moriyama, Kotaro, Nakamura, Masanori, Narayanan, Gopal, Natarajan, Iniyan, Neilsen, Joey, Ni, Chunchong, Noutsos, Aristeidis, Nowak, Michael A, Okino, Hiroki, Olivares, Hector, Oyama, Tomoaki, Patel, Nimesh, Plambeck, Richard, PopStefanija, Aleksandar, Prather, Ben, Preciado-Lopez, Jorge A, Psaltis, Dimitrios, Rao, Ramprasad, Raymond, Alexander W, Rezzolla, Luciano, Ripperda, Bart, Rogers, Alan, Ros, Eduardo, Rottmann, Helge, Rygl, Kazi L. J, Sanchez, Salvador, Shao, Lijing, Small, Des, Sun, He, Tazaki, Fumie, Tilanus, Remo P. J, Traianou, Efthalia, Trippe, Sascha, van Bemmel, Ilse, Wagner, Jan, Wex, Norbert, Wu, Qingwen, Young, Andre, Zensus, J. Anton, Zhao, Guang-Yao

    Published 13-05-2021
    “…ApJ 912 35 (2021) Synchrotron radiation from hot gas near a black hole results in a polarized image. The image polarization is determined by effects including…”
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    Journal Article