Results 61 to 70 of about 574,458 (198)

Satellite abundances around bright isolated galaxies

, 2012
We study satellite galaxy abundances in SDSS by counting photometric galaxies around isolated bright primaries. We present results as a function of the luminosity, stellar mass and colour of the satellites, and of the stellar mass and colour of the ...
Abazajian, Aihara, Alshino, Andreon, Ann, Benson, Berlind, Blanton, Blanton, Bode, Bower, Boylan-Kolchin, Boylan-Kolchin, Boylan-Kolchin, Boylan-Kolchin, Bullock, Capak, Chabrier, Chen, Christlein, Cole, Conroy, Conroy, Conroy, Cooray, Croton, Cunha, de Filippis, De Lucia, De Propris, Driver, Driver, Fall, Font, Goto, Grebel, Grebel, Grebel, Grebel, Guo, Guo, Guo, Hansen, Henriques, Henriques, Holmberg, Jing, Jing, Kang, Kauffmann, Kauffmann, Kauffmann, Kauffmann, Klypin, Koposov, Koposov, Kravtsov, Lacey, Lares, Li, Liu, Lorrimer, Lovell, Ma, Macciò, Mandelbaum, Mandelbaum, Mandelbaum, Montero-Dorta, Moore, Moore, More, Moster, Navarro, Navarro, Nierenberg, Paolillo, Peacock, Phillipps, Popesso, Popesso, Prada, Prescott, Ross, Sales, Sales, Sales, Sargent, Scarlata, Schechter, Scoville, Seljak, Sersic, Simard, Simon, Simon, Simon D. M. White, Skibba, Smith, Somerville, Somerville, Spergel, Spergel, Springel, Springel, Tal, Tal, Tasitsiomi, Tollerud, Tollerud, Vader, Vale, Walsh, Wang, Weinmann, Weinmann, Weinmann, Wenting Wang, Westra, White, White, Willman, Yang, Yang, York, Yoshida, Zandivarez, Zaritsky, Zaritsky, Zavala, Zhao, Zheng   +131 more
core   +1 more source

The evolution of the stellar mass versus halo mass relationship [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
We present an analysis of the predictions made by the Galform semi-analytic galaxy formation model for the evolution of the relationship between stellar mass and halo mass. We show that for the standard implementations of supernova feedback and gas reincorporation used in semi-analytic models, this relationship is predicted to evolve weakly over the ...
Mitchell, Peter D., Lacey, Cedric G., Baugh, Carlton M., Cole, Shaun   +3 more
openaire   +5 more sources

Revealing the Galaxy–Halo Connection through Machine Learning

The Astrophysical Journal, 2023
Understanding the connections between galaxy stellar mass, star formation rate, and dark matter halo mass represents a key goal of the theory of galaxy formation. Cosmological simulations that include hydrodynamics, physical treatments of star formation,
Ryan Hausen, Brant E. Robertson, Hanjue Zhu, Nickolay Y. Gnedin, Piero Madau, Evan E. Schneider, Bruno Villasenor, Nicole E. Drakos   +7 more
doaj   +1 more source

On the central stellar mass density and the inside-out growth of early-type galaxies

, 2012
[Abridged] In this paper we derive the central stellar mass density within a fixed radius and the effective stellar mass density within the effective radius for a complete sample of 34 ETGs morphologically selected at 0 ...
A. Gargiulo, Bernardi, Bernardi, Bezanson, Buitrago, Cameron, Capaccioli, Cassata, Cassata, Cimatti, Ciotti, Collins, Daddi, Damjanov, Damjanov, De Lucia, di Serego Alighieri, Fasano, Fasano, Gargiulo, Gargiulo, Giavalisco, Graham, Guo, Hopkins, Hopkins, Kennicutt, Khochfar, Khochfar, Longhetti, López-Sanjuan, M. Longhetti, Mancini, McGrath, Naab, Naab, Nair, Newman, Nipoti, P. Saracco, Peng, Pignatelli, Pozzetti, Renzini, Saracco, Saracco, Saracco, Shen, Sommer-Larsen, Stott, Stott, Szomoru, Thomas, Tiret, Trujillo, Trujillo, Trujillo, Valentinuzzi, Valentinuzzi, van de Sande, van der Wel, van der Wel, van der Wel, van der Wel, van Dokkum, van Dokkum, Wuyts   +66 more
core   +1 more source

Stellar Masses and Radii as Constraints on Stellar Models [PDF]

International Astronomical Union Colloquium, 1993
AbstractThe current status of empirical data on stellar masses and radii of sufficient accuracy to give constraints on stellar models is reviewed. Results from the best-studied eclipsing binaries can already trace the main-sequence evolution of 1-10 M⊙ stars in considerable detail and will be even more useful when supplemented by chemical abundance ...
openaire   +1 more source

THE UNIVERSAL STELLAR MASS-STELLAR METALLICITY RELATION FOR DWARF GALAXIES [PDF]

The Astrophysical Journal, 2013
24 pages, 13 figures, 1 machine-readable table included in "Other formats," accepted to ApJ.
James S. Bullock, Anna Gallazzi, Anna Gallazzi, Evan N. Kirby, Lucy Cheng, Judith G. Cohen, Puragra Guhathakurta   +6 more
openaire   +6 more sources

The Average Stellar Population Age and Metallicity of Intermediate-redshift Quiescent Galaxies

The Astrophysical Journal
The HectoMAP spectroscopic survey provides a unique mass-limited sample of more than 35,000 quiescent galaxies ( D _n 4000 > 1.5) covering the redshift range 0.2  10 ^11 M _⊙ ) assemble the bulk of their stars at earlier epochs.
Ivana Damjanov, Margaret J. Geller, Jubee Sohn   +2 more
doaj   +1 more source

The Correlations of Stellar Tidal Disruption Rates with Properties of Massive Black Holes and Their Host Galaxies

The Astrophysical Journal, 2023
Stars can be either disrupted as tidal disruption events (TDEs) or swallowed whole by massive black holes (MBHs) at galactic centers when they approach sufficiently close to these MBHs.
Yunfeng Chen, Qingjuan Yu, Youjun Lu
doaj   +1 more source

LATIS: The Stellar Mass-Metallicity Relation of Star-forming Galaxies at $z\sim 2.5$ [PDF]

arXiv, 2023
We present the stellar mass - stellar metallicity relation for 3491 star-forming galaxies at $2 \lesssim z \lesssim 3$ using rest-frame far-ultraviolet (FUV) spectra from the Ly$\alpha$ Tomography IMACS Survey (LATIS). We fit stellar population synthesis models from the Binary Population And Spectral Synthesis code (BPASS v$2.2.1$) to medium resolution
arxiv  

Supernovae and Stellar Mass Loss [PDF]

Highlights of Astronomy, 1986
AbstractType I supernovae can be modeled as the carbon deflagration of white dwarfs and Type II supernovae as the explosions of massive stars with hydrogen envelopes. The massive stars at the ends of their lives are expected to be red supergiants, which are observed to have slow, dense winds.
openaire   +2 more sources