Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Sault, Robert"'
Autor:
Tollefson, Joshua, de Pater, Imke, Molter, Edward M., Sault, Robert J., Butler, Bryan J., Luszcz-Cook, Statia, DeBoer, David
We present spatially resolved ($0.1'' - 1.0''$) radio maps of Neptune taken from the Very Large Array and Atacama Large Submillimeter/Millimeter Array between $2015-2017$. Combined, these observations probe from just below the main methane cloud deck
Externí odkaz:
http://arxiv.org/abs/2104.06554
Autor:
Molter, Edward M., de Pater, Imke, Luszcz-Cook, Statia, Tollefson, Joshua, Sault, Robert J., Butler, Bryan, de Boer, David
We present ALMA and VLA spatial maps of the Uranian atmosphere taken between 2015 and 2018 at wavelengths from 1.3 mm to 10 cm, probing pressures from $\sim$1 to $\sim$50 bar at spatial resolutions from 0.1'' to 0.8''. Radiative transfer modeling was
Externí odkaz:
http://arxiv.org/abs/2010.11154
Autor:
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 the Murchison Radio-astronomy Observatory (MRO) in Western Australia, consists of 128 dual-po
Externí odkaz:
http://arxiv.org/abs/1502.05015
Autor:
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 noise and sample variance in detecting the HI power spectrum from the Epoch of Reionization (Eo
Externí odkaz:
http://arxiv.org/abs/1308.0565
Autor:
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 telescope in the Southern Hemisphere designed specifically to explore the low-frequency astronomica
Externí odkaz:
http://arxiv.org/abs/1212.5151
Autor:
Sullivan, Ian, Morales, Miguel, Hazelton, Bryna, Arcus, Wayne, Barnes, David, Bernardi, Gianni, Briggs, Frank, Bowman, Judd D., Bunton, John, Cappallo, Roger, Corey, Brian, Deshpande, Avinash, deSouza, Ludi, Emrich, David, Gaensler, B. M., Goeke, Robert, Greenhill, Lincoln, Herne, David, Hewitt, Jacqueline, Johnston-Hollitt, Melanie, Kaplan, David, Kasper, Justin, Kincaid, Barton, Koenig, Ronald, Kratzenberg, Eric, Lonsdale, Colin, Lynch, Mervyn, McWhirter, Russell, Mitchell, Daniel, Morgan, Edward, Oberoi, Divya, Ord, Stephen, Pathikulangara, Joseph, Prabu, Thiagaraj, Remillard, Ron, Rogers, Alan, Roshi, Anish, Salah, Joseph, Sault, Robert, Shankar, Udaya, Srivani, K., Stevens, Jamie, Subrahmanyan, Ravi, Tingay, Steven, Wayth, Randall, Waterson, Mark, Webster, Rachel, Whitney, Alan, Williams, Andrew, Williams, Chris, Wyithe, Stuart
Publikováno v:
2012 ApJ 759 17
We introduce the Fast Holographic Deconvolution method for analyzing interferometric radio data. Our new method is an extension of A-projection/software-holography/forward modeling analysis techniques and shares their precision deconvolution and wide
Externí odkaz:
http://arxiv.org/abs/1209.1653
Autor:
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., Sethi, Shiv K., Subrahmanyan, Ravi, Sadler, Elaine M., Arcus, Wayne, Barnes, David G., Bernardi, Gianni, Bunton, John D., Cappallo, Roger C., Crosse, Brian W., Corey, Brian E., 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., 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, Prabu, Thiagaraj, Remillard, Ronald A., Rogers, Alan E. E., Roshi, Anish A., Salah, Joseph E., Sault, Robert J., Shankar, N. Udaya, Srivani, K. S., Stevens, Jamie B., Tingay, Steven J., Wayth, Randall B., Waterson, Mark, Webster, Rachel L., Whitney, Alan R., Williams, Andrew J., Wyithe, J. Stuart B.
The Murchison Widefield Array (MWA) is a new low-frequency, wide field-of-view radio interferometer under development at the Murchison Radio-astronomy Observatory (MRO) in Western Australia. We have used a 32-element MWA prototype interferometer (MWA
Externí odkaz:
http://arxiv.org/abs/1203.5790
Autor:
Hancock, Paul J., Roberts, Paul, Kesteven, Michael J., Ekers, Ronald D., Sadler, Elaine M., Murphy, Tara, Massardi, Marcella, Ricci, Roberto, Calabretta, Mark, de Zotti, Gianfranco, Edwards, Philip G., Ekers, Jennifer A., Jackson, Carole A., Leach, Mark, Phillips, Chris, Sault, Robert J., Staveley-Smith, Lister, Subrahmanyan, Ravi, Walker, Mark A., Wilson, Warwick E.
The Australia Telescope 20GHz (AT20G) survey is a large area (2{\pi} sr), sensitive (40mJy), high frequency (20GHz) survey of the southern sky. The survey was conducted in two parts: an initial fast scanning survey, and a series of more accurate foll
Externí odkaz:
http://arxiv.org/abs/1109.1886
Autor:
Oberoi, Divya, Matthews, Lynn D., Cairns, Iver H., Emrich, David, Lobzin, Vasili, Lonsdale, Colin J., Morgan, Edward H., Prabu, T., Vedantham, Harish, Wayth, Randall B., Williams, Andrew, Williams, Christopher, White, Stephen M., Allen, G., Arcus, Wayne, Barnes, David, Benkevitch, Leonid, Bernardi, Gianni, Bowman, Judd D., Briggs, Frank H., Bunton, John D., Burns, Steve, Cappallo, Roger C., Clark, M. A., Corey, Brian E., Dawson, M., DeBoer, David, De Gans, A., deSouza, Ludi, Derome, Mark, Edgar, R. G., Elton, T., Goeke, Robert, Gopalakrishna, M. R., Greenhill, Lincoln J., Hazelton, Bryna, Herne, David, Hewitt, Jacqueline N., Kamini, P. A., Kaplan, David L., Kasper, Justin C., Kennedy, Rachel, Kincaid, Barton B., Kocz, Jonathan, Koeing, R., Kowald, Errol, Lynch, Mervyn J., Madhavi, S., McWhirter, Stephen R., Mitchell, Daniel A., Morales, Miguel F., Ng, A., Ord, Stephen M., Pathikulangara, Joseph, Rogers, Alan E. E., Roshi, Anish, Salah, Joseph E., Sault, Robert J., Schinckel, Antony, Shankar, N. Udaya, Srivani, K. S., Stevens, Jamie, Subrahmanyan, Ravi, Thakkar, D., Tingay, Steven J., Tuthill, J., Vaccarella, Annino, Waterson, Mark, Webster, Rachel L., Whitney, Alan R.
We present the first spectroscopic images of solar radio transients from the prototype for the Murchison Widefield Array (MWA), observed on 2010 March 27. Our observations span the instantaneous frequency band 170.9-201.6 MHz. Though our observing pe
Externí odkaz:
http://arxiv.org/abs/1101.0620
Autor:
Massardi, Marcella, Ekers, Ronald D., Murphy, Tara, Mahony, Elizabeth, Hancock, Paul J., Chhetri, Rajan, De Zotti, Gianfranco, Sadler, Elaine M., Burke-Spolaor, Sarah, Calabretta, Mark, Edwards, Philip G., Ekers, Jennifer A., Jackson, Carole A., Kesteven, Michael J., Newton-McGee, Katherine, Phillips, Chris, Ricci, Roberto, Roberts, Paul, Sault, Robert J., Staveley-Smith, Lister, Subrahmanyan, Ravi, Walker, Mark A., Wilson, Warwick E.
The Australia Telescope 20 GHz (AT20G) survey is a blind survey of the whole Southern sky at 20 GHz with follow-up observations at 4.8, 8.6, and 20 GHz carried out with the Australia Telescope Compact Array (ATCA). In this paper we present an analysi
Externí odkaz:
http://arxiv.org/abs/1010.5942