Zobrazeno 1 - 10
of 275
pro vyhledávání: '"Ung, D."'
Autor:
Tian, J., Anderson, G. E., Hancock, P. J., Miller-Jones, J. C. A., Sokolowski, M., James, C. W., Bhat, N. D. R., Swainston, N. A., Ung, D., Meyers, B. W.
We present a targeted search for low-frequency (144--215\,MHz) FRB emission from five repeating FRBs using 23.3\,hr of archival data taken with the Murchison Widefield Array (MWA) Voltage Capture System (VCS) between 2014 September and 2020 May. This
Externí odkaz:
http://arxiv.org/abs/2211.11945
Autor:
Lee, C. P., Bhat, N. D. R., Sokolowski, M., Swainston, N. A., Ung, D., Magro, A., Chiello, R.
We present the first observational study of pulsars performed with the second-generation precursor stations to the low-frequency component of the Square Kilometre Array (SKA-Low): the Aperture Array Verification System 2 (AAVS2) and the Engineering D
Externí odkaz:
http://arxiv.org/abs/2208.07182
Publikováno v:
A&A 664, A102 (2022)
We present the system equivalent flux density (SEFD) expressions for all four Stokes parameters: I, Q, U, V. The expressions were derived based on our derivation of SEFD I (for Stokes I) and subsequent extensions of that work to phased array and mult
Externí odkaz:
http://arxiv.org/abs/2205.15579
Autor:
Tian, J., Anderson, G. E., Hancock, P. J., Miller-Jones, J. C. A., Sokolowski, M., Swainston, N. A., Rowlinson, A., Williams, A., Kaplan, D. L., Hurley-Walker, N., Morgan, J., Bhat, N. D. R., Ung, D., Tingay, S., Bannister, K. W., Bell, M. E., Meyers, B. W., Walker, M.
We present a low-frequency (170\textendash200\,MHz) search for prompt radio emission associated with the long GRB 210419A using the rapid-response mode of the Murchison Widefield Array (MWA), triggering observations with the Voltage Capture System (V
Externí odkaz:
http://arxiv.org/abs/2205.13263
Autor:
Sokolowski, M., Tingay, S. J., Davidson, D. B., Wayth, R. B., Ung, D., Broderick, J. W., Juswardy, B., Kovaleva, M., Macario, G., Pupillo, G., Sutinjo, A.
The SKA will be the largest radio astronomy observatory ever built, providing unprecedented sensitivity over a very broad frequency (50 MHz to 15.3 GHz). The SKA-Low (50 - 350 MHz), will be built at the MRO in Western Australia. It will consist of 51
Externí odkaz:
http://arxiv.org/abs/2204.05873
Publikováno v:
A&A 660, A134 (2022)
This paper extends the treatment of system equivalent flux density (SEFD) in Sutinjo, A. T. et al. (2021) (Paper I) to interferometric phased array telescopes. The objective is to develop an SEFD formula involving only the most fundamental assumption
Externí odkaz:
http://arxiv.org/abs/2201.13035
Autor:
Benthem, P., Wayth, R., Acedo, E. de Lera, Adami, K. Zarb, Alderighi, M., Belli, C., Bolli, P., Booler, T., Borg, J., Broderick, J. W., Chiarucci, S., Chiello, R., Ciani, L., Comoretto, G., Crosse, B., Davidson, D., DeMarco, A., Emrich, D., van Es, A., Fierro, D., Faulkner, A., Gerbers, M., Razavi-Ghods, N., Hall, P., Horsley, L., Juswardy, B., Kenney, D., Steele, K., Magro, A., Mattana, A., McKinley, B., Monari, J., Naldi, G., Nanni, J., Di Ninni, P., Paonessa, F., Perini, F., Poloni, M., Pupillo, G., Rusticelli, S., Schiaffino, M., Schillirò, F., Schnetler, H., Singuaroli, R., Sokolowski, M., Sutinjo, A., Tartarini, G., Ung, D., de Vaate, J. G. Bij, Virone, G., Walker, M., Waterson, M., Wijnholds, S. J., Williams, A.
Publikováno v:
A&A 655, A5 (2021)
The design and development process for the Square Kilometre Array (SKA) radio telescope, the Low Frequency Aperture Array component, was progressed during the SKA pre-construction phase by an international consortium, with the goal of meeting require
Externí odkaz:
http://arxiv.org/abs/2110.03217
Autor:
Sokolowski, M., Wayth, R. B., Bhat, N. D. R., Price, D., Broderick, J. W., Bernardi, G., Bolli, P., Chiello, R., Comoretto, G., Crosse, B., Davidson, D. B., Macario, G., Magro, A., Mattana, A., Minchin, D., McPhail, A., Monari, J., Perini, F., Pupillo, G., Sleap, G., Tingay, S., Ung, D., Williams, A.
We present the first southern-hemisphere all-sky imager and radio-transient monitoring system implemented on two prototype stations of the low-frequency component of the Square Kilometre Array. Since its deployment the system has been used for real-t
Externí odkaz:
http://arxiv.org/abs/2104.02940
Autor:
Chokshi, A., Line, J. L. B., Barry, N., Ung, D., Kenney, D., McPhail, A., Williams, A., Webster, R. L.
The wide adoption of low-frequency radio interferometers as a tool for deeper and higher resolution astronomical observations has revolutionised radio astronomy. Despite their construction from static, relatively simple dipoles, the sheer number of d
Externí odkaz:
http://arxiv.org/abs/2102.00402
Autor:
Sutinjo, A. T., Sokolowski, M., Kovaleva, M., Ung, D. C. X., Broderick, J. W., Wayth, R. B., Davidson, D. B., Tingay, S. J.
Publikováno v:
A&A 646, A143 (2021)
Aims: This paper aims to derive an expression for the sensitivity of a polarimetric radio interferometer that is valid for all-sky observations of arbitrarily polarized sources, with neither a restriction on FoV nor with any a priori assumption regar
Externí odkaz:
http://arxiv.org/abs/2012.08075