Results 31 to 40 of about 5,279,442 (297)

Improved luminosity determination in pp collisions at s√=7 TeV using the ATLAS detector at the LHC [PDF]

open access: yes, 2013
The luminosity calibration for the ATLAS detector at the LHC during pp collisions at s√=7 TeV in 2010 and 2011 is presented. Evaluation of the luminosity scale is performed using several luminosity-sensitive detectors, and comparisons are made of the ...
G. Khoriauli   +999 more
core   +5 more sources

The Hα Luminosity Function of Galaxies at z ∼ 4.5

open access: yesThe Astrophysical Journal, 2023
We present the H α luminosity function (LF) derived from a large sample of Lyman break galaxies at z ∼ 4.5 over the GOODS-South and North fields.
Victoria Bollo   +7 more
doaj   +1 more source

Padé Approximant and Minimax Rational Approximation in Standard Cosmology

open access: yesGalaxies, 2016
The luminosity distance in the standard cosmology as given by ΛCDM and, consequently, the distance modulus for supernovae can be defined by the Padé approximant.
Lorenzo Zaninetti
doaj   +1 more source

Galactic Model Parameters and Spatial Density of Cataclysmic Variables in the Gaia Era: New Constraints on Population Models

open access: yesThe Astronomical Journal, 2023
The spatial distribution, Galactic model parameters, and luminosity function of cataclysmic variables (CVs) are established using reestimated trigonometric parallaxes from Gaia DR3.
Remziye Canbay   +3 more
doaj   +1 more source

The HerMES SPIRE submillimeter local luminosity function [PDF]

open access: yes, 2010
Local luminosity functions are fundamental benchmarks for high-redshift galaxy formation and evolution studies as well as for models describing these processes.
Pearson, C.P.   +374 more
core   +4 more sources

Unpacking Merger Jets: A Bayesian Analysis of GW170817, GW190425 and Electromagnetic Observations of Short Gamma-Ray Bursts

open access: yesThe Astrophysical Journal, 2023
We present a novel fully Bayesian analysis to constrain short gamma-ray burst (sGRB) jet structures associated with cocoon, wide-angle, and simple top-hat jet models, as well as the binary neutron star (BNS) merger rate.
Fergus Hayes   +5 more
doaj   +1 more source

A Nuclear Luminosity Function for Seyferts [PDF]

open access: yesSymposium - International Astronomical Union, 1996
Relations between various classes of AGN should show up when examining their LFs. For Seyfert galaxies, such studies have been affected by the prevalence of (essentially) integrated magnitudes. Proper nuclear magnitudes have been determined in an effort of CCD imaging, which enable an appropriate comparison with QSOs.
openaire   +1 more source

ON THE INTERPRETATION OF THE GLOBULAR CLUSTER LUMINOSITY FUNCTION [PDF]

open access: yesThe Astrophysical Journal, 2009
The conversion of the globular cluster luminosity function (GCLF, dN/dlogL) to the globular cluster mass function (GCMF, dN/dlogM) is addressed. Dissolving globular clusters (GCs) become preferentially depleted in low-mass stars, which have a high mass-to-light ratio.
Kruijssen, J.M.D., Portegies Zwart, S.F.
openaire   +4 more sources

Tracing Galaxy Evolution by Their Present-Day Luminosity Function

open access: yesOpen Astronomy, 2011
Galaxy luminosity functions are derived for different morphological types and various colors of galaxies, to trace the evolutionary effects which a priori should be different for void and supercluster galaxies.
Tempel E.
doaj   +1 more source

The Truncated Lognormal Distribution as a Luminosity Function for SWIFT-BAT Gamma-Ray Bursts

open access: yesGalaxies, 2016
The determination of the luminosity function (LF) in Gamma ray bursts (GRBs) depends on the adopted cosmology, each one characterized by its corresponding luminosity distance.
Lorenzo Zaninetti
doaj   +1 more source

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