Results 11 to 20 of about 6,178,117 (397)
The high mass end of the stellar mass function: dependence on stellar population models and agreement between fits to the light profile [PDF]
, 2016 We quantify the systematic effects on the stellar mass function that arise from assumptions about the stellar population, as well as how one fits the light profiles of the most luminous galaxies at z∼0.1.
M. Bernardi +7 more
semanticscholar +4 more sources
Challenges in Stellar Population Studies [PDF]
Proceedings of the International Astronomical Union, 2009 AbstractThe stellar populations of galaxies contain a wealth of detailed information. From the youngest, most massive stars, to almost invisible remnants, the history of star formation is encoded in the stars that make up a galaxy. Extracting some, or all, of this information has long been a goal of stellar population studies.
Arnaboldi +28 more
openaire +5 more sources
Stellar population trends in S0 galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 We present stellar population age and metallicity trends for a sample of 59 S0 galaxies based on optical SDSS and NIR J & H photometry. When combined with optical g and r passband imaging data from the SDSS archive and stellar population models, we obtain radial age and metallicity trends out to at least 5 effective radii for most of the galaxies ...
Rose, James +7 more
openaire +8 more sources
Stellar population and kinematics of NGC 404 [PDF]
Astronomy and Astrophysics, 2010 NGC404 is a nearly face-on nearby low-luminosity lenticular galaxy. Probing its characteristics provides a wealth of information on the details of possible evolution processes of dS0 galaxies which may not be possible in other, more distant objects. In order to study its kinematics and star formation history, we obtained long slit spectroscopy at the ...
Margarita Sharina +6 more
openaire +10 more sources
BEING WISE. I. VALIDATING STELLAR POPULATION MODELS AND M⋆/L RATIOS AT 3.4 and 4.6 μm [PDF]
, 2014 Using data from the Wide-field Infrared Survey Explorer mission, we have measured near infra-red (NIR) photometry of a diverse sample of dust-free stellar systems (globular clusters, dwarf and giant early-type galaxies) which have metallicities that span
M. Norris +5 more
semanticscholar +5 more sources
Stellar population synthesis at the resolution of 2003 [PDF]
, 2003 We present a new model for computing the spectral evolution of stellar populations at ages between 1 x 10 5 and 2 x 10 1 0 yr at a resolution of 3 A across the whole wavelength range from 3200 to 9500 A for a wide range of metallicities.
G. Bruzual, S. Charlot
semanticscholar +1 more source
Stellar populations with ELTs [PDF]
Proceedings of the International Astronomical Union, 2005 The star formation, mass assembly and chemical enrichment histories of galaxies, and their present distributions of dark matter, remain encoded in their stellar populations. Distinguishing the actual distribution functions of stellar age, metallicity and kinematics at several locations in a range of galaxies, sampling across Hubble types and ...
Gerard Gilmore, Rosemary F. G. Wyse
openaire +4 more sources
The Auriga stellar haloes: connecting stellar population properties with accretion and merging history [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We examine the stellar haloes of the Auriga simulations, a suite of 30 cosmological magnetohydrodynamical high-resolution simulations of Milky Way-mass galaxies performed with the moving-mesh code arepo.
A. Monachesi +11 more
semanticscholar +1 more source
A Hierarchical Bayesian Framework for Inferring the Stellar Obliquity Distribution
The Astronomical Journal, 2023 Stellar obliquity, the angle between a planet’s orbital axis and its host star’s spin axis, traces the formation and evolution of a planetary system. In transiting-exoplanet observations, only the sky-projected stellar obliquity can be measured, but this
Jiayin Dong, Daniel Foreman-Mackey
doaj +1 more source
Evidence for the Third Stellar Population in the Milky Way’s Disk [PDF]
Astrophysical Journal, 2019 The Milky Way is a unique laboratory in which stellar properties can be measured and analyzed in detail. In particular, stars in the older populations encode information on the mechanisms that led to the formation of our Galaxy.
D. Carollo +8 more
semanticscholar +1 more source