Search Results - "Whitney, Alan R."

A STUDY OF FUNDAMENTAL LIMITATIONS TO STATISTICAL DETECTION OF REDSHIFTED H I FROM THE EPOCH OF REIONIZATION by THYAGARAJAN, NITHYANANDAN, Shankar, N Udaya, Subrahmanyan, Ravi, Arcus, Wayne, Bernardi, Gianni, Bowman, Judd D, Briggs, Frank, Bunton, John D, CAPPALLO, ROGER J, Corey, Brian E

“…In this paper, we explore for the first time the relative magnitudes of three fundamental sources of uncertainty, namely, foreground contamination, thermal…”
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Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre by Doeleman, Sheperd S, Tilanus, Remo P. J, Cappallo, Roger J, Titus, Michael, Young, Ken H, Chamberlin, Richard, Woody, David, Marrone, Daniel P, Davis, Gary R, Moran, James M, Lamb, James, Roy, Alan, Plambeck, Richard, Werthimer, Daniel, Freund, Robert, Bower, Geoffrey C, Whitney, Alan R, Bock, Douglas C.-J, Krichbaum, Thomas P, Friberg, Per, Ziurys, Lucy M, Corey, Brian, Weintroub, Jonathan, Smythe, Daniel L, Rogers, Alan E. E, Strittmatter, Peter, Maness, Holly, Niell, Arthur E

“…The cores of most galaxies are thought to harbour supermassive black holes, which power galactic nuclei by converting the gravitational energy of accreting…”
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Demonstration of a 16 Gbps Station-1Broadband-RF VLBI System by Whitney, Alan R., Beaudoin, Christopher J., Cappallo, Roger J., Corey, Brian E., Crew, Geoffrey B., Doeleman, Shepherd S., Lapsley, David E., Hinton, Alan A., McWhirter, Stephen R., Niell, Arthur E., Rogers, Alan E. E., Ruszczyk, Chester A., Smythe, Daniel L., SooHoo, Jason, Titus, Michael A.

“…A relatively inexpensive 16 Gbps data-recording system based on commercial off-the-shelf technology and open-source software has recently been developed…”
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Very-Long-Baseline Radio Interferometry: The Mark III System for Geodesy, Astrometry, and Aperture Synthesis by Alan E. E. Rogers, Cappallo, Roger J., Hinteregger, Hans F., Levine, James I., Nesman, Edwin F., Webber, John C., Whitney, Alan R., Clark, Thomas A., Ma, Chopo, Ryan, James, Corey, Brian E., Counselman, Charles C., Herring, Tomas A., Shapiro, Irwin I., Knight, Curtis A., Shaffer, David B., Vandenberg, Nancy R., Lacasse, Richard, Mauzy, Robert, Rayhrer, Benno, Schupler, Bruce R., Pigg, J. C.

“…The Mark III very-long-baseline interferometry (VLBI) system allows recording and later processing of up to 112 megabits per second from each radio telescope…”
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LOW-FREQUENCY IMAGING OF FIELDS AT HIGH GALACTIC LATITUDE WITH THE MURCHISON WIDEFIELD ARRAY 32 ELEMENT PROTOTYPE by WILLIAMS, Christopher L, HEWITT, Jacqueline N, SETHI, Shiv K, SUBRAHMANYAN, Ravi, SADLER, Elaine M, ARCUS, Wayne, BARNES, David G, BERNARDI, Gianni, BUNTON, John D, CAPPALLO, Roger C, CROSSE, Brian W, CORFY, Brian E, LEVINE, Alan M, DESHPANDE, Avinash, DESOUZA, Ludi, EMRICH, David, GOEKE, Robert F, GREENHILL, Lincoln J, HAZELTON, Bryna J, HERNE, David, KAPLAN, David L, KASPER, Justin C, KINCAID, Barton B, DE OLIVEIRA-COSTA, Angelica, KOENIG, Ronald, KRATZENBERG, Eric, LONSDALE, Colin J, LYNCH, Mervyn J, RUSSELL MCWHIRTER, S, MORGAN, Edward H, OBEROI, Divya, ORD, Stephen M, PATHIKULANGARA, Joseph, PRABU, Thiagaraj, BOWMAN, Judd D, REMILLARD, Ronald A, ROGERS, Alan E. E, ANISH ROSHI, D, SALAH, Joseph E, SAULT, Robert J, UDAYA SHANKAR, N, SRIVANI, K. S, STEVENS, Jamie B, TINGAYS, Steven J, WAYTH, Randall B, BRIGGS, Frank H, WATERSON, Mark, WEBSTER, Rachel L, WHITNEY, Alan R, WILLIAMS, Andrew J, WYITHE, J. Stuart B, GAENSLER, B. M, HERNQUIST, Lars L, MITCHELL, Daniel A, MORALES, Miguel F

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The Murchison Widefield Array: Design Overview by Lonsdale, Colin J., deSouza, Ludi, Doeleman, Sheperd S., Derome, Mark, Deshpande, Avinash, Gopala, Modavanatt Ramakrishna, Greenhill, Lincoln J., Herne, David Edwin, Hewitt, Jacqueline N., Kamini, P. A., Kasper, Justin C., Cappallo, Roger J., Kincaid, Barton B., Kocz, Jonathan, Kowald, Errol, Kratzenberg, Eric, Kumar, Deepak, Lynch, Mervyn J., Madhavi, S., Matejek, Michael, Mitchell, Daniel A., Morgan, Edward, Morales, Miguel F., Oberoi, Divya, Ord, Steven, Pathikulangara, Joseph, Prabu, T., Rogers, Alan E. E., Roshi, Anish, Salah, Joseph E., Sault, Robert J., Shankar, N. Udaya, Srivani, K. S., Briggs, Frank H., Stevens, Jamie, Tingay, Steven, Vaccarella, Annino, Waterson, Mark, Wayth, Randall B., Webster, Rachel L., Whitney, Alan R., Williams, Andrew, Williams, Christopher, Benkevitch, Leonid, Bowman, Judd D., Bunton, John D., Burns, Steven, Corey, Brian E.

“…The Murchison Widefield Array is a dipole-based aperture array synthesis telescope designed to operate in the 80-300 MHz frequency range. It is capable of a…”
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Quasars Revisited: Rapid Time Variations Observed Via Very-Long-Baseline Interferometry by Whitney, Alan R., Shapiro, Irwin I., Alan E. E. Rogers, Robertson, Douglas S., Knight, Curtis A., Clark, Thomas A., Goldstein, Richard M., Marandino, Gerard E., Vandenberg, Nancy R.

“…Recent Goldstone-Haystack radio interferometric observations of the quasars 3C 279 and 3C 273 reveal rapid variations in their fine structure. Most notably,…”
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Demonstration of a 16 Gbps Station-1 Broadband-RF VLBI System by Whitney, Alan R., Beaudoin, Christopher J., Cappallo, Roger J., Corey, Brian E., Crew, Geoffrey B., Doeleman, Shepherd S., Lapsley, David E., Hinton, Alan A., McWhirter, Stephen R., Niell, Arthur E., Rogers, Alan E. E., Ruszczyk, Chester A., Smythe, Daniel L., SooHoo, Jason, Titus, Michael A.

“…ABSTRACT A relatively inexpensive 16 Gbps data-recording system based on commercial off-the-shelf technology and open-source software has recently been…”
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STUDY OF REDSHIFTED H I FROM THE EPOCH OF REIONIZATION WITH DRIFT SCAN by Paul, Sourabh, Sethi, Shiv K, Subrahmanyan, Ravi, Shankar, N Udaya, Dwarakanath, K S, Deshpande, Avinash A, Bernardi, Gianni, Bowman, Judd D, Briggs, Frank, CAPPALLO, ROGER J

“…Detection of the epoch of reionization (EoR) in the redshifted 21 cm line is a challenging task. Here, we formulate the detection of the EoR signal using the…”
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LOW-FREQUENCY IMAGING OF FIELDS AT HIGH GALACTIC LATITUDE WITH THE MURCHISON WIDEFIELD ARRAY 32 ELEMENT PROTOTYPE by Williams, Christopher L, Hewitt, Jacqueline N, Levine, Alan M, DE OLIVEIRA-COSTA, ANGELICA, Bowman, Judd D, Briggs, Frank H, Gaensler, B M, Hernquist, Lars L, Mitchell, Daniel A, Morales, Miguel F

“…The Murchison Widefield Array (MWA) is a new low-frequency, wide-field-of-view radio interferometer under development at the Murchison Radio-astronomy…”
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Quasars: Millisecond-of-Arc Structure Revealed by Very-Long-Baseline Interferometry by Knight, Curtis A., Robertson, Douglas S., Alan E. E. Rogers, Shapiro, Irwin I., Whitney, Alan R., Clark, Thomas A., Goldstein, Richard M., Marandino, Gerard E., Vandenberg, Nancy R.

“…Observations with the Goldstone-Haystack radio interferometer of the quasars 3C 279 and 3C 273 have disclosed the presence of fine structure in their radio…”
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A digital-receiver for the MurchisonWidefield Array by Prabu, Thiagaraj, Srivani, K. S., Roshi, D. Anish, Kamini, P. A., Madhavi, S., Emrich, David, Crosse, Brian, Williams, Andrew J., Waterson, Mark, Deshpande, Avinash A., Shankar, N. Udaya, Subrahmanyan, Ravi, Briggs, Frank H., Goeke, Robert F., Tingay, Steven J., Johnston-Hollitt, Melanie, R, Gopalakrishna M, Morgan, Edward H., Pathikulangara, Joseph, Bunton, John D., Hampson, Grant, Williams, Christopher, Ord, Stephen M., Wayth, Randall B., Kumar, Deepak, Morales, Miguel F., deSouza, Ludi, Kratzenberg, Eric, Pallot, D., McWhirter, Russell, Hazelton, Bryna J., Arcus, Wayne, Barnes, David G., Bernardi, Gianni, Booler, T., Bowman, Judd D., Cappallo, Roger J., Corey, Brian E., Greenhill, Lincoln J., Herne, David, Hewitt, Jacqueline N., Kaplan, David L., Kasper, Justin C., Kincaid, Barton B., Koenig, Ronald, Lonsdale, Colin J., Lynch, Mervyn J., Mitchell, Daniel A., Oberoi, Divya, Remillard, Ronald A., Rogers, Alan E., Salah, Joseph E., Sault, Robert J., Stevens, Jamie B., Tremblay, S., Webster, Rachel L., Whitney, Alan R., Wyithe, Stuart B.

“…An FPGA-based digital-receiver has been developed for a low-frequency imaging radio interferometer, the Murchison Widefield Array (MWA). The MWA, located at…”
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Demonstration of a 16 Gbps Station super(-1) Broadband-RF VLBI System by Whitney, Alan R, Beaudoin, Christopher J, Cappallo, Roger J, Corey, Brian E, Crew, Geoffrey B, Doeleman, Shepherd S, Lapsley, David E, Hinton, Alan A, McWhirter, Stephen R, Niell, Arthur E, Rogers, Alan E E, Ruszczyk, Chester A, Smythe, Daniel L, Soohoo, Jason, Titus, Michael A

“…A relatively inexpensive 16 Gbps data-recording system based on commercial off-the-shelf technology and open-source software has recently been developed…”
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The Murchison Widefield Array: Design Overview: ADVANCES IN RADIO TELESCOPES by LONSDALE, Colin J, CAPPALLO, Roger J, DOELEMAN, Sheperd S, DEROME, Mark, DESHPANDE, Avinash, MODAVANATT RAMAKRISHNA GOPALA, GREENHILL, Lincoln J, HERNE, David Edwin, HEWITT, Jacqueline N, KAMINI, P. A, KASPER, Justin C, KINCAID, Barton B, MORALES, Miguel F, KOCZ, Jonathan, KOWALD, Errol, KRATZENBERG, Eric, KUMAR, Deepak, LYNCH, Mervyn J, MADHAVI, S, MATEJEK, Michael, MITCHELL, Daniel A, MORGAN, Edward, OBEROI, Divya, BRIGGS, Frank H, ORD, Steven, PATHIKULANGARA, Joseph, PRABU, T, ROGERS, Alan E. E, ROSHI, Anish, SALAH, Joseph E, SAULT, Robert J, UDAYA SHANKAR, N, SRIVANI, K. S, STEVENS, Jamie, BENKEVITCH, Leonid, TINGAY, Steven, VACCARELLA, Annino, WATERSON, Mark, WAYTH, Randall B, WEBSTER, Rachel L, WHITNEY, Alan R, WILLIAMS, Andrew, WILLIAMS, Christopher, BOWMAN, Judd D, BUNTON, John D, BURNS, Steven, COREY, Brian E, DESOUZA, Ludi

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Wavelet-Based Characterization of Small-Scale Solar Emission Features at Low Radio Frequencies by Suresh, Akshay, Sharma, Rohit, Oberoi, Divya, Das, Srijan B, Pankratius, Victor, Timar, Brian, Lonsdale, Colin J, Bowman, Judd D, Briggs, Frank, Cappallo, Roger J, Corey, Brian E, Deshpande, Avinash A, Emrich, David, Goeke, Robert, Greenhill, Lincoln J, Hazelton, Bryna J, Johnston-Hollitt, Melanie, Kaplan, David L, Kasper, Justin C, Kratzenberg, Eric, Lynch, Mervyn J, McWhirter, S. Russell, Mitchell, Daniel A, Morales, Miguel F, Morgan, Edward, Ord, Stephen M, Prabu, Thiagaraj, Rogers, Alan E. E, Roshi, Anish, Shankar, N. Udaya, Srivani, K. S, Subrahmanyan, Ravi, Tingay, Steven J, Waterson, Mark, Wayth, Randall B, Webster, Rachel L, Whitney, Alan R, Williams, Andrew, Williams, Christopher L

“…Low radio frequency solar observations using the Murchison Widefield Array have recently revealed the presence of numerous weak, short-lived and narrow-band…”
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A Digital-Receiver for the Murchison Widefield Array by Prabu, Thiagaraj, Srivani, K. S, Roshi, D. Anish, Kamini, P. A, Madhavi, S, Emrich, David, Crosse, Brian, Williams, Andrew J, Waterson, Mark, Deshpande, Avinash A, Shankar, N. Udaya, Subrahmanyan, Ravi, Briggs, Frank H, Goeke, Robert F, Tingay, Steven J, Johnston-Hollitt, Melanie, R, Gopalakrishna M, Morgan, Edward H, Pathikulangara, Joseph, Bunton, John D, Hampson, Grant, Williams, Christopher, Ord, Stephen M, Wayth, Randall B, Kumar, Deepak, Morales, Miguel F, deSouza, Ludi, Kratzenberg, Eric, Pallot, D, McWhirter, Russell, Hazelton, Bryna J, Arcus, Wayne, Barnes, David G, Bernardi, Gianni, Booler, T, Bowman, Judd D, Cappallo, Roger J, Corey, Brian E, Greenhill, Lincoln J, Herne, David, Hewitt, Jacqueline N, Kaplan, David L, Kasper, Justin C, Kincaid, Barton B, Koenig, Ronald, Lonsdale, Colin J, Lynch, Mervyn J, Mitchell, Daniel A, Oberoi, Divya, Remillard, Ronald A, Rogers, Alan E, Salah, Joseph E, Sault, Robert J, Stevens, Jamie B, Tremblay, S. E, Webster, Rachel L, Whitney, Alan R, Wyithe, Stuart B

“…An FPGA-based digital-receiver has been developed for a low-frequency imaging radio interferometer, the Murchison Widefield Array (MWA). The MWA, located at…”
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Study of Redshifted HI from the Epoch of Reionization with Drift scan by Paul, Sourabh, Sethi, Shiv K, Subrahmanyan, Ravi, Shankar, N. Udaya, Dwarakanath, K. S, Deshpande, Avinash A, Bernardi, Gianni, Bowman, Judd D, Briggs, Frank, Cappallo, Roger J, Corey, Brian E, Emrich, David, Gaensler, Bryan M, Goeke, Robert F, Greenhill, Lincoln J, Hazelton, Bryna J, Hewitt, Jacqueline N, Johnston-Hollitt, Melanie, Kaplan, David L, Kasper, Justin C, Kratzenberg, Eric, Lonsdale, Colin J, Lynch, Mervyn J, McWhirter, S. Russell, Mitchell, Daniel A, Morales, Miguel F, Morgan, Edward H, Oberoi, Divya, Ord, Stephen M, Prabu, Thiagaraj, Rogers, Alan E. E, Roshi, Anish A, Srivani, K. S, Tingay, Steven J, Wayth, Randall B, Waterson, Mark, Webster, Rachel L, Whitney, Alan R, Williams, Andrew J, Williams, Christopher L

“…2014 ApJ 793 28 The detection of the Epoch of Reionization (EoR) in the redshifted 21-cm line is a challenging task. Here we formulate the detection of the EoR…”
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Demonstration of a broadband-RF VLBI system at 16 Gbps data rate per station by Whitney, Alan R, Beaudoin, Christopher J, Cappallo, Roger J, Corey, Brian E, Crew, Geoffrey B, Doeleman, Shepherd S, Lapsley, David E, Hinton, Alan A, McWhirter, Stephen R, Niell, Arthur E, Rogers, Alan E. E, Ruszczyk, Chester A, Smythe, Daniel L, SooHoo, Jason, Titus, Michael A

“…The recent development of a relatively inexpensive 16-Gbps data-recording system based on commercial off-the-shelf technology and open-source software, along…”
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A study of fundamental limitations to statistical detection of redshifted HI from the epoch of reionization by Thyagarajan, Nithyanandan, Shankar, N. Udaya, Subrahmanyan, Ravi, Arcus, Wayne, Bernardi, Gianni, Bowman, Judd D, Briggs, Frank, Bunton, John D, Cappallo, Roger J, Corey, Brian E, deSouza, Ludi, Emrich, David, Gaensler, Bryan M, Goeke, Robert F, Greenhill, Lincoln J, Hazelton, Bryna J, Herne, David, Hewitt, Jacqueline N, Johnston-Hollitt, Melanie, Kaplan, David L, Kasper, Justin C, Kincaid, Barton B, Koenig, Ronald, Kratzenberg, Eric, Lonsdale, Colin J, Lynch, Mervyn J, McWhirter, S. Russell, Mitchell, Daniel A, Morales, Miguel F, Morgan, Edward H, Oberoi, Divya, Ord, Stephen M, Pathikulangara, Joseph, Remillard, Ronald A, Rogers, Alan E. E, Roshi, Anish A, Salah, Joseph E, Sault, Robert J, Srivani, K. S, Stevens, Jamie B, Thiagaraj, Prabu, Tingay, Steven J, Wayth, Randall B, Waterson, Mark, Webster, Rachel L, Whitney, Alan R, Williams, Andrew J, Williams, Christopher L, Wyithe, J. Stuart B

“…In this paper we explore for the first time the relative magnitudes of three fundamental sources of uncertainty, namely, foreground contamination, thermal…”
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Science with the Murchison Widefield Array by Bowman, Judd D, Cairns, Iver, Kaplan, David L, Murphy, Tara, Oberoi, Divya, Staveley-Smith, Lister, Arcus, Wayne, Barnes, David G, Bernardi, Gianni, Briggs, Frank H, Brown, Shea, Bunton, John D, Burgasser, Adam J, Cappallo, Roger J, Chatterjee, Shami, Corey, Brian E, Coster, Anthea, Deshpande, Avinash, deSouza, Ludi, Emrich, David, Erickson, Philip, Goeke, Robert F, Gaensler, B. M, Greenhill, Lincoln J, Harvey-Smith, Lisa, Hazelton, Bryna J, Herne, David, Hewitt, Jacqueline N, Johnston-Hollitt, Melanie, Kasper, Justin C, Kincaid, Barton B, Koenig, Ronald, Kratzenberg, Eric, Lonsdale, Colin J, Lynch, Mervyn J, Matthews, Lynn D, McWhirter, S. Russell, Mitchell, Daniel A, Morales, Miguel F, Morgan, Edward H, Ord, Stephen M, Pathikulangara, Joseph, Thiagaraj, Prabu, Remillard, Ronald A, Robishaw, Timothy, Rogers, Alan E. E, Roshi, Anish A, Salah, Joseph E, Sault, Robert J, Shankar, N. Udaya, Srivani, K. S, Stevens, Jamie B, Subrahmanyan, Ravi, Tingay, Steven J, Wayth, Randall B, Waterson, Mark, Webster, Rachel L, Whitney, Alan R, Williams, Andrew J, Williams, Christopher L, Wyithe, J. Stuart B

“…Significant new opportunities for astrophysics and cosmology have been identified at low radio frequencies. The Murchison Widefield Array is the first…”
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