Zobrazeno 1 - 10
of 3 720
pro vyhledávání: '"BROWN, ANTHONY"'
Autor:
O'Hara, Oscar S. D., Gueuning, Quentin, Acedo, Eloy de Lera, Dulwich, Fred, Cumner, John, Anstey, Dominic, Brown, Anthony, Fialkov, Anastasia, Dhandha, Jiten, Faulkner, Andrew, Liu, Yuchen
We investigate the impact of Mutual Coupling (MC) between antennas on the time-delay power spectrum response of the core of the SKA-Low radio telescope. Using two in-house tools - Fast Array Simulation Tool (FAST) (a fast full-wave electromagnetic so
Externí odkaz:
http://arxiv.org/abs/2412.01699
Autor:
Kurbatov, Evgeny P., Belokurov, Vasily, Koposov, Sergey, Kravtsov, Andrey, Davies, Elliot Y., Brown, Anthony G. A., Cantat-Gaudin, Tristan, Castro-Ginard, Alfred, Casey, Andrew R., Drimmel, Ronald, Fouesneau, Morgan, Khanna, Shourya, Rix, Hans-Walter, Wallace, Alex
The innermost portions of the Milky Way's stellar halo have avoided scrutiny until recently. The lack of wide-area survey data, made it difficult to reconstruct an uninterrupted view of the density distribution of the metal-poor stars inside the Sola
Externí odkaz:
http://arxiv.org/abs/2410.22250
Autor:
Khanna, Shourya, Yu, Jie, Drimmel, Ronald, Poggio, Eloisa, Cantat-Gaudin, Tristan, Castro-Ginard, Alfred, Kurbatov, Evgeny, Belokurov, Vasily, Brown, Anthony, Fouesneau, Morgan, Casey, Andrew, Rix, Hans-Walter
We present an exploration of the Milky Way's structural parameters using an all-sky sample of RC giants to map the stellar density from the inner to the outer parts of the Galactic disc. These evolved giants are considered to be standard candles due
Externí odkaz:
http://arxiv.org/abs/2410.22036
Autor:
Gueuning, Quentin, Acedo, Eloy de Lera, Brown, Anthony Keith, Craeye, Christophe, O'Hara, Oscar
We present a numerical method for the analysis of mutual coupling effects in large, dense and irregular arrays with identical antennas. Building on the Method of Moments (MoM), our technique employs a Macro Basis Function (MBF) approach for rapid dir
Externí odkaz:
http://arxiv.org/abs/2409.00153
Autor:
Castro-Ginard, Alfred, Penoyre, Zephyr, Casey, Andrew R., Brown, Anthony G. A., Belokurov, Vasily, Cantat-Gaudin, Tristan, Drimmel, Ronald, Fouesneau, Morgan, Khanna, Shourya, Kurbatov, Evgeny P., Price-Whelan, Adrian M., Rix, Hans-Walter, Smart, Richard L.
Publikováno v:
A&A 688, A1 (2024)
Gaia can not individually resolve very close binary systems, however, the collected data can still be used to identify them. A powerful indicator of stellar multiplicity is the sources reported Renormalized Unit Weight Error (ruwe), which effectively
Externí odkaz:
http://arxiv.org/abs/2404.14127
We analyse 13 yrs of $\textit{Fermi}$-LAT PASS 8 events from 127 gamma-ray emitting millisecond pulsars (MSPs) in the energy range 0.1$-$100 GeV and significantly detect 118 MSPs. We fit the stacked emission with a log parabola (LP) spectral model wh
Externí odkaz:
http://arxiv.org/abs/2404.10872
Autor:
Brown, Anthony, Bianco, Federica, Bhalerao, Varun, Kulkarni, Shri, Cooke, Jeffery, Reitze, David H., Sharma, Pranav, Mahabal, Ashish
Policy Brief on "Latest Developments and Opportunities in Sky Survey", distilled from the corresponding panel that was part of the discussions during S20 Policy Webinar on Astroinformatics for Sustainable Development held on 6-7 July 2023. Sky survey
Externí odkaz:
http://arxiv.org/abs/2402.13294
Autor:
Grønnow, Asger, Fraternali, Filippo, Marinacci, Federico, Pezzulli, Gabriele, Tolstoy, Eline, Helmi, Amina, Brown, Anthony G. A.
Satellite galaxies within the Milky Way's (MW) virial radius $R_{\mathrm{vir}}$ are typically devoid of cold gas due to ram pressure stripping by the MW's corona. The density of this corona is poorly constrained today and essentially unconstrained in
Externí odkaz:
http://arxiv.org/abs/2401.08563
Autor:
Cantat-Gaudin, Tristan, Fouesneau, Morgan, Rix, Hans-Walter, Brown, Anthony G. A., Drimmel, Ronald, Castro-Ginard, Alfred, Khanna, Shourya, Belokurov, Vasily, Casey, Andrew R.
The spatial distribution of Galactic stars with different chemical abundances encodes information on the processes that drove the formation and evolution of the Milky Way. Survey selection functions are indispensable for analysing astronomical catalo
Externí odkaz:
http://arxiv.org/abs/2401.05023