Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Lonsdale, Colin John"'
Autor:
Asada, Keiichi, Nakamura, Masanori, Hada, Kazuhiro, Nagai, Hiroshi, Lonsdale, Colin J., Fish, Vincent, Akiyama, Kazunori, Fish, Vincent L., Lonsdale, Colin John
Publikováno v:
Galaxies, Vol 6, Iss 1, p 15 (2018)
Galaxies; Volume 6; Issue 1; Pages: 15
Multidisciplinary Digital Publishing Institute
Galaxies; Volume 6; Issue 1; Pages: 15
Multidisciplinary Digital Publishing Institute
A key question in the formation of the relativistic jets in active galactic nuclei (AGNs) is the collimation process of their energetic plasma flow launched from the central supermassive black hole (SMBH). Recent observations of nearby low-luminosity
Autor:
Bradley, R. F., Bernardi, G., Bowman, J. D., Briggs, F., Cappallo, R. J., Deshpande, A. A., Greenhill, L. J., Hazelton, B. J., Johnston-Hollitt, M., Kaplan, D. L., Mitchell, D. A., Morales, M. F., Morgan, E., Oberoi, D., Ord, S. M., Prabu, T., Shankar, N. Udaya, Srivani, K. S., Subrahmanyan, R., Tingay, S. J., Wayth, R. B., Webster, R. L., Williams, A., Neben, Abraham Richard, Hewitt, Jacqueline N, Goeke, Robert F, Lonsdale, Colin John, McWhirter, Stephen R., Williams, Christopher Leigh
Publikováno v:
arXiv
Detection of the fluctuations in a 21 cm line emission from neutral hydrogen during the Epoch of Reionization in thousand hour integrations poses stringent requirements on calibration and image quality, both of which necessitate accurate primary beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od________88::1dcd3323fa86738f377e2ff0b4f05db8
https://orcid.org/0000-0001-7776-7240
https://orcid.org/0000-0001-7776-7240
Autor:
Capallo, R.J., Lonsdale, Colin John, Corey, Brian E., Kratzenberg, Eric W., McWhirter, Stephen R., Oberoi, Divya, Rogers, Alan E. E., Salah, Joseph E., Whitney, Alan R., Goeke, Robert F., Hewitt, Jacqueline N., Morgan, Edward H., Remillard, Ronald Alan, Williams, Christopher Leigh
Publikováno v:
arXiv
Antenna layout is an important design consideration for radio interferometers because it determines the quality of the snapshot point spread function (PSF, or array beam). This is particularly true for experiments targeting the 21-cm Epoch of Reioniz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od________88::4c351446b01596e04e6bd269fea336ba
http://hdl.handle.net/1721.1/76241
http://hdl.handle.net/1721.1/76241
Autor:
Beardsley, A. P., Hazelton, B. J., Morales, M. F., Capallo, R.J., Goeke, Robert F, Emrich, D., Lonsdale, Colin John, Arcus, W., Barnes, D., Bernardi, G., Bowman, J. D., Bunton, J. D., Corey, Brian E, Deshpande, A., deSouza, L., Gaensler, B. M., Greenhill, L. J., Herne, D., Hewitt, Jacqueline N, Kaplan, D. L., Kasper, J. C., Kincaid, Barton B., Koenig, R., Kratzenberg, Eric W, Lynch, M. J., McWhirter, S. R., Mitchell, D. A., Morgan, Edward H, Oberoi, Divya, Ord, S. M., Pathikulangara, J., Prabu, T., Rogers, Alan E E, Roshi, A., Salah, Joseph E., Sault, R. J., Shankar, N. Udaya, Srivani, K. S., Stevens, J., Subrahmanyan, R., Tingay, S. J., Wayth, R. B., Waterson, M., Webster, R. L., Whitney, Alan R, Williams, A., Williams, C. L., Wyithe, J. S. B., Remillard, Ronald A
Publikováno v:
arXiv
Antenna layout is an important design consideration for radio interferometers because it determines the quality of the snapshot point spread function (PSF, or array beam). This is particularly true for experiments targeting the 21-cm Epoch of Reioniz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od________88::4be5034bf31264a3afa61bf72948d267
https://hdl.handle.net/1721.1/125228
https://hdl.handle.net/1721.1/125228
A high reliability survey of discrete Epoch of Reionization foreground sources in the MWA EoR0 field
Autor:
Chen Wu, J. Riding, Frank H. Briggs, A. Roshi, Rachel L. Webster, S. K. Sethi, J. L. B. Line, S. M. Ord, Jonathan C. Pober, Adam P. Beardsley, N. Udaya Shankar, K. S. Srivani, Eric Kratzenberg, Andrew Williams, Pietro Procopio, Robert F. Goeke, Colin J. Lonsdale, M. Waterson, Gianni Bernardi, Roger J. Cappallo, Ian Sullivan, Bryna J. Hazelton, Bryan Gaensler, J. S. Dillon, Abraham Loeb, A. de Oliveira-Costa, Eric R. Morgan, Nichole Barry, T. Prabu, Steven Tingay, Alan E. E. Rogers, David Emrich, Benjamin McKinley, Brian E. Corey, Bartosz Pindor, Christopher L. Williams, Daniel A. Mitchell, D. L. Kaplan, P. Carroll, Alan R. Whitney, D. C. Jacobs, Judd D. Bowman, Lu Feng, A. R. Offringa, Jacqueline N. Hewitt, J. S. B. Wyithe, Abraham R. Neben, L. J. Greenhill, D. Oberoi, Hs. Kim, Stephen R. McWhirter, J. C. Kasper, Cathryn M. Trott, Miguel F. Morales, Aaron Ewall-Wice, Natasha Hurley-Walker, Emil Lenc, M. J. Lynch, Randall B. Wayth, Max Tegmark, S. Paul, Melanie Johnston-Hollitt, Ravi Subrahmanyan, Nithyanandan Thyagarajan
Publikováno v:
ResearcherID
arXiv
arXiv
Detection of the epoch of reionization H i signal requires a precise understanding of the intervening galaxies and AGN, both for instrumental calibration and foreground removal. We present a catalogue of 7394 extragalactic sources at 182 MHz detected
Autor:
Mervyn J. Lynch, David L. Kaplan, N. Udaya Shankar, Grant Hampson, Judd D. Bowman, S. Madhavi, Lincoln J. Greenhill, R. Koenig, T. Booler, W. Arcus, Justin C. Kasper, D. Pallot, Gianni Bernardi, Stephen M. Ord, Ludi deSouza, Alan R. Whitney, Gopalakrishna M R, Eric Kratzenberg, Frank H. Briggs, Edward H. Morgan, John D. Bunton, Melanie Johnston-Hollitt, Stuart Wyithe, David Emrich, David Herne, Daniel A. Mitchell, Jamie Stevens, Joseph Pathikulangara, S. E. Tremblay, D. Anish Roshi, P. A. Kamini, Thiagaraj Prabu, B. B. Kincaid, Joseph E. Salah, K. S. Srivani, Brian Crosse, Randall B. Wayth, Brian E. Corey, Mark Waterson, Robert J. Sault, Ravi Subrahmanyan, Andrew Williams, Miguel F. Morales, Avinash A. Deshpande, Ronald A. Remillard, Rachel L. Webster, Divya Oberoi, Christopher L. Williams, Alan E. E. Rogers, Jacqueline N. Hewitt, Roger J. Cappallo, Robert F. Goeke, Steven Tingay, Deepak Kumar, David G. Barnes, Bryna J. Hazelton, Russell McWhirter, Colin J. Lonsdale
Publikováno v:
arXiv
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
Autor:
Steven Tingay, Alan E. E. Rogers, Divya Oberoi, Roger J. Cappallo, Jacqueline N. Hewitt, A. Roshi, U. Shankar, Thiagaraj Prabu, David Emrich, Melanie Johnston-Hollitt, Russell McWhirter, Gianni Bernardi, K. S. Srivani, Richard W. Hunstead, Judd D. Bowman, Luke Hindson, David L. Kaplan, A. R. Offringa, Colin J. Lonsdale, Elaine M. Sadler, Mark Waterson, Stephen M. Ord, Bryna J. Hazelton, Miguel F. Morales, Edward H. Morgan, Bryan Gaensler, Frank H. Briggs, Christopher L. Williams, Rachel L. Webster, Justin C. Kasper, Randall B. Wayth, Ravi Subrahmanyan, Ron Ekers, Brian E. Corey, Paul Hancock, Daniel A. Mitchell, Alan R. Whitney, Mervyn J. Lynch, Andrew Williams, Avinash A. Deshpande, Lincoln J. Greenhill, Natasha Hurley-Walker, Eric Kratzenberg, Robert F. Goeke
Publikováno v:
arXiv
Recent observations with the Murchison Widefield Array at 185~MHz have serendipitously unveiled a heretofore unknown giant and relatively nearby ($z = 0.0178$) radio galaxy associated with NGC\,1534. The diffuse emission presented here is the first i
Autor:
J. S. B. Wyithe, Robert F. Goeke, Edward H. Morgan, Mervyn J. Lynch, Steven Tingay, Alan E. E. Rogers, Ravi Subrahmanyan, David Emrich, Brian E. Corey, John D. Bunton, Melanie Johnston-Hollitt, B. B. Kincaid, Judd D. Bowman, Ron Remillard, Miguel F. Morales, A. Roshi, R. Koenig, Christopher L. Williams, Colin J. Lonsdale, Stephen R. McWhirter, Joseph Pathikulangara, David G. Barnes, Randall B. Wayth, David Herne, Daniel A. Mitchell, L. deSouza, Alan R. Whitney, Justin C. Kasper, K. S. Srivani, Rachel L. Webster, Jacqueline N. Hewitt, Mark Waterson, Stephen M. Ord, Roger J. Cappallo, Divya Oberoi, Robert J. Sault, Thiagaraj Prabu, Jamie Stevens, Joseph E. Salah, Andrew Williams, Avinash A. Deshpande, Shankar N. Udaya, Gianni Bernardi, Lincoln J. Greenhill, Eric Kratzenberg, David L. Kaplan, Bryna J. Hazelton, Bryan Gaensler, Adam P. Beardsley, W. Arcus, Frank H. Briggs
Publikováno v:
arXiv
Using the final 128 antenna locations of the Murchison Widefield Array (MWA), we calculate its sensitivity to the epoch of reionization (EoR) power spectrum of redshifted 21 cm emission for a fiducial model and provide the tools to calculate the sens
Autor:
Justin C. Kasper, Jamie Stevens, Lu Feng, J. Riding, Martin Bell, Ron Remillard, J. S. B. Wyithe, Joseph E. Salah, A. Roshi, Rachel L. Webster, K. S. Srivani, Frank H. Briggs, Robert F. Goeke, Lincoln J. Greenhill, Natasha Hurley-Walker, Andrew Williams, A. Ewell-Wice, Emil Lenc, Gianni Bernardi, Divya Oberoi, M. Waterson, Bryna J. Hazelton, Avinash A. Deshpande, Pietro Procopio, Nadia Kudryavtseva, Steven Tingay, Alan E. E. Rogers, Eric Kratzenberg, Robert J. Sault, Eric R. Morgan, Stephen M. Ord, Stephen R. McWhirter, Miguel F. Morales, Colin J. Lonsdale, Alan R. Whitney, John D. Bunton, Brian E. Corey, David Emrich, Thiagaraj Prabu, Luke Hindson, Ravi Subrahmanyan, Joseph Pathikulangara, David L. Kaplan, A. R. Offringa, B. B. Kincaid, D. Pallot, Melanie Johnston-Hollitt, M. J. Lynch, Brian Crosse, Daniel C. Jacobs, S. E. Tremblay, L. deSouza, Bartosz Pindor, Judd D. Bowman, Randall B. Wayth, David Herne, Daniel A. Mitchell, R. Koenig, Benjamin McKinley, David G. Barnes, Jacqueline N. Hewitt, Roger J. Cappallo, N. Udaya Shankar, N. D. R. Bhat, W. Arcus, Michael A. Clark, Christopher L. Williams
Publikováno v:
arXiv
The Murchison Widefield Array (MWA) is a Square Kilometre Array (SKA) Precursor. The telescope is located at the Murchison Radio--astronomy Observatory (MRO) in Western Australia (WA). The MWA consists of 4096 dipoles arranged into 128 dual polarisat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::143c868aa0f770d49319bcd96e3c67be
https://resolver.caltech.edu/CaltechAUTHORS:20150518-121039816
https://resolver.caltech.edu/CaltechAUTHORS:20150518-121039816
Autor:
Anna D. Kapińska, Nichole Barry, Ian Sullivan, Han-Seek Kim, Joshua S. Dillon, Lincoln J. Greenhill, Ravi Subrahmanyan, Jonathan C. Pober, Joseph R. Callingham, Edward H. Morgan, Natasha Hurley-Walker, Lister Staveley-Smith, Emil Lenc, D. L. Kaplan, Daniel C. Jacobs, Paul Hancock, Bartosz Pindor, Steven Tingay, Qinghua Zheng, J. L. B. Line, Cathryn M. Trott, S. Paul, Divya Oberoi, Miguel F. Morales, Bryan Gaensler, N. Udaya Shankar, Luke Hindson, J. Riding, Abraham R. Neben, Christopher L. Williams, Bryna J. Hazelton, Nithyanandan Thyagarajan, K. S. Dwarakanath, Aaron Ewall-Wice, Stephen M. Ord, Chen Wu, Abraham Loeb, Colin J. Lonsdale, Gianni Bernardi, T. Prabu, P. Carroll, Martin Bell, Daniel A. Mitchell, Roger J. Cappallo, Rachel L. Webster, Shiv K. Sethi, Jacqueline N. Hewitt, Benjamin McKinley, Piyanat Kittiwisit, Judd D. Bowman, Avinash A. Deshpande, J. S. B. Wyithe, John Morgan, Adam P. Beardsley, Bi-Qing For, Frank H. Briggs, S. R. McWhirter, K. S. Srivani, Randall B. Wayth, Pietro Procopio, Anne M. Williams, Max Tegmark, Melanie Johnston-Hollitt, A. R. Offringa, Lu Feng
Publikováno v:
arXiv
The Murchison Widefield Array (MWA) is a new low-frequency interferometric radio telescope built in Western Australia at one of the locations of the future Square Kilometre Array (SKA). We describe the automated radio-frequency interference (RFI) det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bc279547701a89061cb1f33ada5999f