Results 11 to 20 of about 247,102 (346)
The Protostellar Luminosity Function [PDF]
The Astrophysical Journal, 2011 The protostellar luminosity function (PLF) is the present-day luminosity function of the protostars in a region of star formation. It is determined using the protostellar mass function (PMF) in combination with a stellar evolutionary model that provides ...
Andre +43 more
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Luminosity function of GRBs [PDF]
Astronomy & Astrophysics, 2001 We attempt to constrain the luminosity function of Gamma Ray Bursts (GRBs) from the observed number count--flux relation and the afterglow redshift data. We assume three classes of luminosity functions for our analysis: (a) Log-normal distribution, (b) Schechter distribution, and (c) Scale-free distribution. We assume several models of the evolution of
Sethi, Shiv, Bhargavi, S. G.
openaire +2 more sources
The subdwarf luminosity function [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 Using data from the Sloan Digital Sky Survey Early Data Release and SuperCOSMOS Sky Survey scans of POSS-I plates we identify a sample of 2600 subdwarfs using reduced proper motion methods and strict selection criteria. This forms one of the largest and most reliable samples of candidate subdwarfs known, and enables us to determine accurate luminosity ...
Digby, Andrew P. +4 more
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Luminosity functions of cluster galaxies [PDF]
Astronomy & Astrophysics, 2018 We derive NUV luminosity functions for 6471 NUV detected galaxies in 28 0.02 < z < 0.08 clusters and consider their dependence on cluster properties. We consider optically red and blue galaxies and explore how their NUV LFs vary in several cluster subsamples, selected to best show the influence of environment.
Roberto De Propris +2 more
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Luminosity Functions of Planetary Nebulae [PDF]
Symposium - International Astronomical Union, 1997 Planetary nebulae have recently been shown to be useful as standard candles (Ciardullo et al. 1989, ApJ, 339, 53; Jacoby 1989, ApJ, 339, 39). Distances to many galaxies have been determined by fitting a planetary nebula luminosity function (PNLF) to observations of the OIII 5007å line of PNe.
Marcelle Tremblay, Sun Kwok
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The Properties and Luminosity Function of Extremely Low Luminosity Galaxies [PDF]
The Astrophysical Journal, 2005 We examine a sample of low redshift (10 < d < 150 Mpc) galaxies including galaxies with r-band absolute magnitudes as faint as -12.5 (for h=1), selected from the Sloan Digital Sky Survey Data Release 2 (SDSS). The sample is unique in containing galaxies of extremely low luminosities in a wide range of environments, selected with uniform and well ...
Blanton, Michael R. +6 more
openaire +2 more sources
Estimating galaxy luminosity functions. [PDF]
The Astronomical Journal, 1997 29 pages, uses AASTeX 4.0 macros. Includes 6 tables and 8 Postscript figures.
openaire +2 more sources
The ISO 170um Luminosity Function of Galaxies [PDF]
, 2005 We constructed a local luminosity function (LF) of galaxies using a flux-limited sample (S_170 > 0.195Jy) of 55 galaxies at z < 0.3 taken from the ISO FIRBACK survey at 170um.
Dennefeld, Michel +5 more
core +2 more sources
The Nearby Optical Galaxy Sample: The Local Galaxy Luminosity Function [PDF]
, 1999 In this paper we derive the galaxy luminosity function from the Nearby Optical Galaxy (NOG) sample, which is a nearly complete, magnitude-limited ...
Barbara Costantini +38 more
core +3 more sources
The Astrophysical Journal Letters, 2023 Tidal disruption events (TDEs), in which a star is destroyed by the gravitational field of a supermassive black hole (SMBH), are being observed at a high rate owing to the advanced state of survey science.
Eric R. Coughlin, Matt Nicholl
doaj +1 more source