Results 71 to 80 of about 11,734 (199)

The Correlation Between Kinematical Properties and Ages of Stellar Populations [PDF]

, 1974
J. Einasto
openalex   +1 more source

A Study of Primordial Very Massive Star Evolution. II. Stellar Rotation and Gamma-Ray Burst Progenitors

The Astrophysical Journal
We calculate new evolutionary models of rotating primordial very massive stars, with initial mass from 100 M _⊙ to 200 M _⊙ , for two values of the initial metallicity Z = 0 and Z = 0.0002.
Guglielmo Volpato, Paola Marigo, Guglielmo Costa, Alessandro Bressan, Michele Trabucchi, Léo Girardi, Francesco Addari   +6 more
doaj   +1 more source

Stellar population in star formation regions of galaxies

Open Astronomy, 2018
We developed techniques for searching young unresolved star groupings (clusters, associations, and their complexes) and of estimating their physical parameters.
Gusev Alexander S., Shimanovskaya Elena V., Shatsky Nikolai I., Sakhibov Firouz, Piskunov Anatoly E., Kharchenko Nina V.   +5 more
doaj   +1 more source

The Absolute Magnitude and Stellar Population of a Ba II Star [PDF]

, 1973
R. D. McClure
openalex   +1 more source

Sloan Digital Sky Survey IV MaStar: Quantification and Abatement of Interstellar Absorption in the Largest Empirical Stellar Spectral Library

The Astrophysical Journal
We assess the impact of Ca ii λ λ 3934, 3969 and Na i λ λ 5891, 5897 absorption arising in the interstellar medium (ISM) on the Sloan Digital Sky Survey-IV MaNGA Stellar Library (MaStar) and produce corrected spectroscopy for 80% of the 24,162-star ...
Kate H. R. Rubin, Kyle B. Westfall, Claudia Maraston, Daniel Thomas, Renbin Yan, J. Christopher Howk, Erick Aguirre, Kaelee S. Parker, David R. Law   +8 more
doaj   +1 more source

Stellar populations in distant radio galaxies [PDF]

, 1984
S. J. Lilly, M. S. Longair
openalex   +1 more source

Far-ultraviolet to Far-infrared Spectral Energy Distribution Modeling of the Star Formation History across M31

The Astronomical Journal
Our neighboring galaxy M31 has been recently surveyed at the far- and near-ultraviolet (FUV and NUV) with the UVIT telescope on AstroSat, which provides unprecedented sensitivity to young stellar populations.
Denis A. Leahy, Jakob Hansen, Andrew M. Hopkins   +2 more
doaj   +1 more source

An infrared study of the stellar population in the direction of the Carina nebula: NGC 3372 [PDF]

, 1987
Robert G. Smith
openalex   +1 more source

Concealing Circumbinary Planets with Tidal Shrinkage

The Astrophysical Journal
Of the 14 transiting planets that have been detected orbiting eclipsing binaries (“circumbinary planets”), none have been detected with stellar binary orbital periods shorter than 7 days, despite such binaries existing in abundance.
Saahit Mogan, J.J. Zanazzi
doaj   +1 more source

The Underlying Population in Young Stellar Systems [PDF]

, 1987
I. Tarrab, Gustavo Bruzual
openalex   +1 more source