Results 261 to 270 of about 30,917 (286)

Feedback mechanisms stopping the star formation in a pair of massive galaxies in the early Universe

Pérez-González P, D'Eugenio F, Pino BRD, Perna M, Uebler H, Maiolino R, Arribas S, Lamperti I, Bunker A, Carniani S, Charlot S, Willott C, Böker T, Parlanti E, Scholtz J, Venturi G, Barro G, Costantin L, Navarro IM, Dunlop J, Magee D, Cresci G.   +21 more
europepmc   +1 more source

V3101 Cyg: A Cataclysmic Variable Born with a Brown Dwarf Donor

Ramirez S, Gänsicke B, Sahu S, Belloni D, Pala A, Koester D, Toloza O, Lagos-Vilches F.   +7 more
europepmc   +1 more source

Mapping the milky way’s stellar halo with 2D data [PDF]

Monthly Notices of the Royal Astronomical Society, 2023
ABSTRACT We propose a new method for measuring the spatial density distribution of the stellar halo of the Milky Way. Our method is based on a pairwise statistic of the distribution of stars in the sky, the angular two-point correlation function (ATPCF). The ATPCF utilizes two-dimensional data of stars only and is therefore immune to the
Yougang Wang, Yan Gong, Richard J Long
exaly   +4 more sources

Two stellar components in the halo of the Milky Way [PDF]

Nature, 2007
Two stand-alone files in manuscript, concatenated together. The first is for the main paper, the second for supplementary information.
Daniela Carollo, Timothy C Beers, Young Sun Lee   +2 more
exaly   +5 more sources

The total stellar halo mass of the Milky Way [PDF]

Monthly Notices of the Royal Astronomical Society, 2019
ABSTRACT We measure the total stellar halo luminosity using red giant branch (RGB) stars selected from Gaia data release 2. Using slices in magnitude, colour, and location on the sky, we decompose RGB stars belonging to the disc and halo by fitting two-dimensional Gaussians to the Galactic proper motion distributions.
Alis J Deason, Vasily Belokurov, Jason L Sanders   +2 more
exaly   +5 more sources

Metallicity bias in the kinematics of the Milky Way stellar halo [PDF]

Monthly Notices of the Royal Astronomical Society, 2013
Accepted for publication in MNRAS (2013 January 14)
Prajwal R Kafle, Geraint F Lewis, JosS Bland-Hawthorn   +2 more
exaly   +3 more sources

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Stellar Populations of the Outer Milky-Way Halo

Proceedings of the International Astronomical Union, 2017
AbstractThe stellar spheroidal components of the Milky-Way contain the oldest and most metal poor of its stars. Inevitably the processes governing the early stages of Galaxy evolution are imprinted upon them. According to the currently favoured hierarchical bottom-up scenario of galaxy formation, these components, specially the Galactic halo, are the ...
Baslio Santiago, Elmer Luque, Adriano Pieres, Anna Bárbara Queiroz   +3 more
openaire   +1 more source

Stellar Substructure in the Halos of the Milky Way and M31

Proceedings of the International Astronomical Union, 2017
AbstractDedicated wide-field surveys have uncovered a variety of debris features and stellar streams in the halos of the Milky Way and M31. I briefly compare these perspectives and discuss how observations of the peripheral regions of M31 can help shape our current understanding of the Milky Way.
openaire   +1 more source

Chemical abundances of the Milky Way thick disk and stellar halo

AIP Conference Proceedings, 2012
We report the chemical abundances of 97 metal-poor stars likely belonging to the Milky Way thick disk and inner/outer stellar halo. All of the spectra of the sample stars have been obtained with the High Dispersion Spectrograph (HDS) mounted on the Subaru Telescope and have analyzed in a homogeneous manner. We show that the thick disk stars show higher
Miho N Ishigaki, Wako Aoki, Masashi Chiba   +2 more
exaly   +2 more sources

Stellar Archaeology in the Milky Way Halo: Variable Stars and Stellar Populations in the New Milky Way Satellites Discovered by the SDSS

AIP Conference Proceedings, 2009
We present results of a project devoted to the extensive survey of the ultra‐faint Milky Way dwarf spheroidal satellites recently discovered by the SDSS (Bootes I, Ursa Major II, Coma, Hercules, Canes Venatici I, Canes Venatici II, Leo IV), that we are monitoring for variability using time‐series multiband observations collected at a variety of ...
V. Ripepi, G. Clementini, M. Dall’Ora, K. Kinemuchi, I. Musella, M. Marconi, C. Greco, L. Di Fabrizio, M. I. Moretti, H. A. Smith, C. Kuehn, C. T. Rodgers, T. C. Beers, M. Catelan, B. J. Pritzl, Joyce Ann Guzik, Paul A. Bradley   +16 more
openaire   +1 more source