Identification of the brightest Lyα emitters at z = 6.6 : Implications for the evolution of the luminosity function in the reionization era [PDF]
, 2015 Using wide-field narrow-band surveys, we provide a new measurement of the z = 6.6 Lymanα emitter (LAE) luminosity function (LF), which constraints the bright end for the first time.
J. Matthee +5 more
semanticscholar +1 more source
ВЛИЯНИЕ ГРАВИТАЦИОННОГО ЛИНЗИРОВАНИЯ НА ФУНКЦИЮ СВЕТИМОСТИ КВАЗАРОВ
Odessa Astronomical Publications, 2011 The function of quasar distribution on apparent brightness is discussed. This function is found on base of suggestion that quasars, at least partly, are strong gravitational lensing images of the active nuclei of distant galaxies.
Ю. Л. Бухмастова
doaj +1 more source
General Physical Properties of Gamma-Ray-emitting Radio Galaxies
The Astrophysical Journal Supplement Series, 2023 We study the radio galaxies with known redshifts detected by the Fermi satellite after 10 yr of data (4FGL-DR2). We use a one-zone leptonic model to fit the quasi-simultaneous multiwavelength data of these radio galaxies and study the distributions of ...
Yongyun Chen +6 more
doaj +1 more source
The Planetary Nebula Luminosity Function in the Era of Precision Cosmology
Frontiers in Astronomy and Space Sciences, 2022 One of the great surprises of the late 1980s was the discovery that the [O III] λ5007 planetary nebula luminosity function (PNLF) could be used as a precision extragalactic standard candle.
Robin Ciardullo, Robin Ciardullo
doaj +1 more source
The 5–10 keV AGN luminosity function at 0.01 < z < 4.0 [PDF]
, 2016 The active galactic nuclei X-ray luminosity function traces actively accreting supermassive black holes and is essential for the study of the properties of the active galactic nuclei (AGN) population, black hole evolution, and galaxy-black hole ...
S. Fotopoulou +16 more
semanticscholar +1 more source
What is L*?: Anatomy of the Galaxy Luminosity Function [PDF]
Astrophys.J. 627 (2005) L89-L92, 2005 Using the empirical relations between the central galaxy luminosity and the halo mass, and between the total galaxy luminosity in a halo and the halo mass, we construct the galaxy luminosity function (LF). To the luminosity of the central galaxy in a halo of a given mass we assign log-normal scatter with a mean calibrated against the observations.
arxiv +1 more source
Galaxy Luminosity Function in Groups [PDF]
The Astrophysical Journal, 1998 Accepted for publication in ApJ, 5 pages including 3 ...
Carlos Valotto +2 more
openaire +3 more sources
The galaxy UV luminosity function at z≃ 2–4; new results on faint-end slope and the evolution of luminosity density [PDF]
, 2015 We present a new, robust measurement of the evolving rest-frame ultraviolet (UV) galaxy luminosity function (LF) over the key redshift range from z ≃ 2 to z ≃ 4.
S. Parsa +3 more
semanticscholar +1 more source
Constraining the AGN Luminosity Function from JWST with the X-Ray Background
The Astrophysical Journal Letters, 2023 We predict the X-ray background (XRB) expected from the population of quasars detected by the James Webb Space Telescope spectroscopic surveys over the redshift range z ∼ 4–7.
Hamsa Padmanabhan, Abraham Loeb
doaj +1 more source
The fading of young stellar populations and the luminosity functions of dwarf, irregular and starburst galaxies [PDF]
, 1997 Dwarf, irregular and infrared-luminous starburst galaxies are all known to have "steep" luminosity functions with faint-end behavior roughly phi(L)-propto- L^(-1.8). This form is exactly what is expected if the luminosities of these objects fade with time as L-propto-t^(-1.3), because the objects spend more time at low luminosities than high, even if ...
arxiv +1 more source