Zobrazeno 1 - 10
of 359
pro vyhledávání: '"Michael J, Hudson"'
Autor:
Qinxun Li, Martin Kilbinger, Wentao Luo, Kai Wang, Huiyuan Wang, Anna Wittje, Hendrik Hildebrandt, Ludovic Van Waerbeke, Michael J. Hudson, Samuel Farrens, Tobías I. Liaudat, Huiling Liu, Ziwen Zhang, Qingqing Wang, Elisa Russier, Axel Guinot, Lucie Baumont, Fabian Hervas Peters, Thomas de Boer, Jiaqi Wang, Alan McConnachie, Jean-Charles Cuillandre, Sébastien Fabbro
Publikováno v:
The Astrophysical Journal Letters, Vol 969, Iss 2, p L25 (2024)
This Letter presents, for the first time, direct constraints on the black hole–halo mass relation using weak gravitational-lensing measurements. We construct type I and type II active galactic nucleus (AGN) samples from the Sloan Digital Sky Survey
Externí odkaz:
https://doaj.org/article/03b90714ef5e4e34a70a24fb0160c605
Autor:
Simon E. T. Smith, William Cerny, Christian R. Hayes, Federico Sestito, Jaclyn Jensen, Alan W. McConnachie, Marla Geha, Julio F. Navarro, Ting S. Li, Jean-Charles Cuillandre, Raphaël Errani, Ken Chambers, Stephen Gwyn, Francois Hammer, Michael J. Hudson, Eugene Magnier, Nicolas Martin
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 1, p 92 (2024)
We present the discovery of Ursa Major III/UNIONS 1, the least luminous known satellite of the Milky Way, which is estimated to have an absolute V -band magnitude of $+{2.2}_{-0.3}^{+0.4}$ mag, equivalent to a total stellar mass of ${16}_{-5}^{+6}$ M
Externí odkaz:
https://doaj.org/article/0ac547a12b7d41008e0fb563b60ba654
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 522:1779-1799
We forward-model mass-weighted stellar ages (MWAs) and quiescent fractions in projected phase space (PPS), using data from the Sloan Digital Sky Survey, to jointly constrain an infall quenching model for galaxies in $\log(M_{\mathrm{vir}}/\mathrm{M}_
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 517:4529-4543
We present a Bayesian velocity field reconstruction algorithm that performs the reconstruction of the mass density field using only peculiar velocity data. Our method consistently accounts for the inhomogeneous Malmquist (IHM) bias using analytical i
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 516:6041-6054
We study the stacked filaments connecting group-mass halo pairs, using dark-matter-only N-body simulations. We calculate the dark matter over-density profile of these stacked filaments at different redshifts as a function of the distance perpendicula
Autor:
Bailey Robison, Michael J Hudson, Jean-Charles Cuillandre, Thomas Erben, Sébastien Fabbro, Raphaël Gavazzi, Axel Guinot, Stephen Gwyn, Hendrik Hildebrandt, Martin Kilbinger, Alan McConnachie, Lance Miller, Isaac Spitzer, Ludovic van Waerbeke
Publikováno v:
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2023, 523 (2), pp.1614-1628. ⟨10.1093/mnras/stad1519⟩
Mon.Not.Roy.Astron.Soc., 2023, 523 (2), pp.1614-1628. ⟨10.1093/mnras/stad1519⟩
Cold dark matter haloes are expected to be triaxial, and so appear elliptical in projection. We use weak gravitational lensing from the Canada-France Imaging Survey (CFIS) component of the Ultraviolet-Near Infrared Optical Northern Survey (UNIONS) to
Autor:
Robert W Bickley, Sara L Ellison, David R Patton, Connor Bottrell, Stephen Gwyn, Michael J Hudson
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 514:3294-3307
The importance of the post-merger epoch in galaxy evolution has been well-documented, but post-mergers are notoriously difficult to identify. While the features induced by mergers can sometimes be distinctive, they are frequently missed by visual ins
Autor:
Emma Ayçoberry, Virginia Ajani, Axel Guinot, Martin Kilbinger, Valeria Pettorino, Samuel Farrens, Jean-Luc Starck, Raphaël Gavazzi, Michael J. Hudson
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2023, 671, pp.A17. ⟨10.1051/0004-6361/202243899⟩
Astronomy & Astrophysics, 671
Astron.Astrophys.
Astron.Astrophys., 2023, 671, pp.A17. ⟨10.1051/0004-6361/202243899⟩
Astronomy and Astrophysics-A&A, 2023, 671, pp.A17. ⟨10.1051/0004-6361/202243899⟩
Astronomy & Astrophysics, 671
Astron.Astrophys.
Astron.Astrophys., 2023, 671, pp.A17. ⟨10.1051/0004-6361/202243899⟩
Context. The Ultraviolet Near-Infrared Optical Northern Survey (UNIONS) is an ongoing deep photometric multiband survey of the northern sky. As part of UNIONS, the Canada-France Imaging Survey (CFIS) provides r-band data, which we use to study weak-l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62b14d9bff39dffb8bafae281eafd011
Autor:
Stephen Gwyn, Scott Wilkinson, Maan H. Hani, Michael J. Hudson, Connor Bottrell, Sara L. Ellison, Kwang Moo Yi, Robert W Bickley, Hossen Teimoorinia
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 504:372-392
The Canada-France Imaging Survey (CFIS) will consist of deep, high-resolution r-band imaging over ~5000 square degrees of the sky, representing a first-rate opportunity to identify recently-merged galaxies. Due to the large number of galaxies in CFIS
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 503:1233-1247
The orbital parameters of dark matter (DM) subhaloes play an essential role in determining their mass-loss rates and overall spatial distribution within a host halo. Haloes in cosmological simulations grow by a combination of relatively smooth accret