Results 41 to 50 of about 30,715 (290)

The galactic population of white dwarfs [PDF]

, 2009
Original paper can be found at: http://www.iop.org/EJ/conf DOI: 10.1088/1742-6596/172/1/012004 [16th European White Dwarfs Workshop]The contribution of white dwarfs of the different Galactic populations to the stellar content of our Galaxy is only poorly
Alcock C Allsman R A Alves D R, Blöcker T, Chabrier G Baraffe I Allard F, Hansen B M S, Holberg J B Oswalt T D, Holberg J B Sion E M Oswalt T McCook G P Foran S, Napiwotzki R Christlieb N Drechsel H, Ralf Napiwotzki, Reid I N Sahu K C, Voss B, Weidemann V   +10 more
core   +2 more sources

BROKEN AND UNBROKEN: THE MILKY WAY AND M31 STELLAR HALOS [PDF]

The Astrophysical Journal, 2013
We use the Bullock & Johnston suite of simulations to study the density profiles of L*-type galaxy stellar haloes. Observations of the Milky Way and M31 stellar haloes show contrasting results: the Milky Way has a `broken' profile, where the density falls off more rapidly beyond ~ 25 kpc, while M31 has a smooth profile out to 100 kpc with no ...
Deason, A. J., Belokurov, V., Evans, N. W., Johnston, K. V.   +3 more
openaire   +2 more sources

THE HERCULES SATELLITE: A STELLAR STREAM IN THE MILKY WAY HALO? [PDF]

The Astrophysical Journal, 2010
8 pages, 4 figures, accepted for publication in ...
Martin, Nicolas F., Jin, Shoko
openaire   +3 more sources

Formation ofin situstellar haloes in Milky Way-mass galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
We study the formation of stellar haloes in three Milky Way-mass galaxies using cosmological smoothed particle hydrodynamics simulations, focusing on the subset of halo stars that form in situ, as opposed to those accreted from satellites. In situ stars in our simulations dominate the stellar halo out to 20 kpc and account for 30-40 per cent of its ...
Cooper, Andrew P., Parry, Owen H., Lowing, Ben, Cole, Shaun, Frenk, Carlos   +4 more
openaire   +3 more sources

Insight Into the Formation of the Milky Way Through Cold Halo Substructure. I. The ECHOS of Milky Way Formation [PDF]

, 2009
We identify ten -- seven for the first time -- elements of cold halo substructure (ECHOS) in the volume within 17.5 kpc of the Sun in the inner halo of the Milky Way.
Abadi, Abadi, Abazajian, Allende Prieto, Allende Prieto, An, Audrey Simmons, Bell, Belokurov, Belokurov, Binney, Bovy, Brian Yanny, Bullock, Carlos Allende Prieto, Carretta, Chen, Chiba, Chiba, Clem, Constance M. Rockosi, Dan Oravetz, Diemand, Dmitry Bizyaev, Duffau, Elena Malanushenko, Fellhauer, Font, Gilmore, Gilmore, Gould, Grillmair, Grillmair, Grillmair, Grillmair, Gunn, Gunn, Harding, Helmi, Helmi, Hogg, Howard, Howard Brewington, Ibata, Ivezić, Ivezić, Johnston, Johnston, Johnston, Jurić, Kaike Pan, Kepley, Kevin C. Schlaufman, Kirby, Klement, Klement, Law, Lee, Lee, Lindegren, Majewski, Martínez-Delgado, Monet, Morrison, Morrison, Munn, Newberg, Nissen, Odenkirchen, Padmanabhan, Peñarrubia, Pier, Robertson, Rocha-Pinto, Rockosi, Sirko, Sirko, Smith, Smith, Sommer-Larsen, Starkenburg, Steinmetz, Stephanie Snedden, Stewart, Timothy C. Beers, Viktor Malanushenko, Vivas, Vivas, Watkins, White, Willett, Xue, Yanny, Yanny, Yanny, York, Young Sun Lee, Zolotov, Zwitter   +98 more
core   +2 more sources

The dual nature of the Milky Way stellar halo [PDF]

Proceedings of the International Astronomical Union, 2010
AbstractThe theory of the Milky Way formation, in the framework of the ΛCDM model, predicts galactic stellar halos to be built from multiple accretion events starting from the first structure to collapse in the Universe.Evidences in the past few decades have indicated that the Galactic halo consists of two overlapping structural components, an inner ...
Anna Curir, Giuseppe Murante, Eva Poglio, Álvaro Villalobos   +3 more
openaire   +1 more source

The velocity dispersion and mass profile of the Milky Way [PDF]

, 2006
We re-analyse the velocity-dispersion profile sigma(r) at radii r>10 kpc in the Galactic stellar halo, recently derived by Battaglia et al. (2005), who concluded that, for constant velocity anisotropy of the tracers, these data rule out a flat circular ...
Battaglia, Bullock, Chiba, Côté, Côté, Dean E. McLaughlin, Dehnen, Dehnen, Dekel, Gould, Harris, Harris, Jalpesh Sachania, Kochanek, Mamon, Morrison, Méndez, Navarro, Navarro, Richtler, Rohlfs, Romanowsky, Walter Dehnen, Yanny   +23 more
core   +2 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)
Kafle, P. R., Sharma, S., Lewis, G. F., Bland-Hawthorn, J.   +3 more
openaire   +2 more sources

STELLAR VELOCITY DISPERSION AND ANISOTROPY OF THE MILKY WAY INNER HALO [PDF]

The Astrophysical Journal, 2015
15 pages, accepted to ...
Charles King III, Warren R. Brown, Margaret J. Geller, Scott J. Kenyon   +3 more
openaire   +2 more sources

The Stellar Halo of the Galaxy is Tilted and Doubly Broken

The Astronomical Journal, 2022
Modern Galactic surveys have revealed an ancient merger that dominates the stellar halo of our galaxy (Gaia–Sausage–Enceladus, GSE). Using chemical abundances and kinematics from the H3 Survey, we identify 5559 halo stars from this merger in the radial ...
Jiwon Jesse Han, Charlie Conroy, Benjamin D. Johnson, Joshua S. Speagle, Ana Bonaca, Vedant Chandra, Rohan P. Naidu, Yuan-Sen Ting, Rebecca Woody, Dennis Zaritsky   +9 more
doaj   +1 more source