Results 1 to 10 of about 169 (167)

Luminosity Functions for Asymptotic Giant Branch Stars [PDF]

open access: yesSymposium - International Astronomical Union, 1984
To understand the evolution of carbon and oxygen rich asymptotic giant branch (AGB) stars it is important to observationally establish the relations between parameters such as luminosity, age, and metallicity. The existence of luminous (brighter than the top of the first giant branch) AGB stars in clusters in the Magellanic Clouds (Mould and Aaronson ...
Jay A. Frogel, V.M. Blanco
openaire   +1 more source

The Carbon Star Luminosity Functions in the Magellanic Clouds [PDF]

open access: yesSymposium - International Astronomical Union, 1999
We address the question of reproducing the observed luminosity functions of carbon stars (CSLF) in both the LMC and SMC, characterized by quite different features (i.e., faint end and peak location), using a new formalism for the third dredge-up in TP-AGB models.
MARIGO, PAOLA, GIRARDI L.
openaire   +2 more sources

The Stellar Luminosity Function and Binary Stars [PDF]

open access: yesInternational Astronomical Union Colloquium, 1992
AbstractIf all stars within a small volume surrounding the sun are counted we obtain an approximation of the low-mass single-star luminosity function. Alternatively, deep photographic surveys cannot resolve most of the binary systems, and consequently we obtain an approximation to the system luminosity function.
Pavel Kroupa   +2 more
openaire   +1 more source

The luminosity function of young star clusters: implications for the maximum mass and luminosity of clusters [PDF]

open access: yesAstronomy & Astrophysics, 2006
We introduce a method to relate a possible truncation of the star cluster mass function at the high mass end to the shape of the cluster luminosity function (LF). We compare the observed LFs of five galaxies containing young star clusters with synthetic cluster population models with varying initial conditions.
Gieles, M   +3 more
openaire   +5 more sources

EVOLUTION OF THE MASS AND LUMINOSITY FUNCTIONS OF GLOBULAR STAR CLUSTERS [PDF]

open access: yesThe Astrophysical Journal, 2016
ABSTRACT We reexamine the dynamical evolution of the mass and luminosity functions of globular star clusters (GCMF and GCLF). Fall & Zhang (2001, FZ01) showed that a power-law MF, as commonly seen among young cluster systems, would evolve by dynamical processes over a Hubble time into a peaked MF with a shape very similar to the ...
Paul Goudfrooij, S. Michael Fall
openaire   +2 more sources

Luminosity and Stellar Mass Functions of Local Star-forming Galaxies [PDF]

open access: yesThe Astrophysical Journal, 2003
12 pages, 2 PostScript figures, published in ApJL.
Pérez González, Pablo Guillermo   +5 more
openaire   +4 more sources

Physics of star-formation history and the luminosity function of galaxies therefrom

open access: yesMonthly Notices of the Royal Astronomical Society, 2022
ABSTRACT We show that the star-formation history, the reionization history and the present luminosity function of galaxies are reproduced in a simple gravitational collapse model within the ΛCDM regime to an almost quantitative accuracy when the physical conditions, the Jeans criterion and the cooling process are taken into account ...
Fukugita, Masataka, Kawasaki, Masahiro
openaire   +2 more sources

The luminosity function of individually undetectable stars [PDF]

open access: yesAstronomy and Astrophysics Supplement Series, 1998
A method is presented to derive the faint end of the stellar luminosity function in crowded elds. The method assumes that two images that look similar, have similar luminosity functions. A simulated image with known luminosity function is compared with an observed image, and the luminosity function is adjusted until the images look suciently similar. A
openaire   +1 more source

The infrared luminosity function for low-mass stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1988
Determination des fonctions de luminosite infrarouge pour des etoiles naines de type M du Pole Galactique Sud et de l'amas des Hyades. Une compilation de donnees photometriques deja publiees et de nouvelles observations est presentee.
S. K. Leggett, M. R. S. Hawkins
openaire   +1 more source

The Luminosity Function of Star Clusters in Spiral Galaxies [PDF]

open access: yesThe Astronomical Journal, 2002
Star clusters in 6 nearby spiral galaxies are examined using archive images from HST/WFPC2. The galaxies have previously been studied from the ground and some of them are known to possess rich populations of "young massive clusters" (YMCs). Comparison with the HST images indicates a success-rate of about 75% for the ground-based cluster detections ...
Larsen, Søren, Larsen, Soeren
openaire   +2 more sources

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