Results 71 to 80 of about 10,786,884 (386)

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, D. Sobral, S. Santos, H. Rottgering, B. Darvish, B. Mobasher   +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

Evolution of the Luminosity Function and Colors of Galaxies in a Lambda-CDM Universe

, 2001
The luminosity function of galaxies is derived from a cosmological hydrodynamic simulation of a Lambda cold dark matter (CDM) universe with the aid of a stellar population synthesis model. At z=0, the resulting B band luminosity function has a flat faint
Arnett, Balbi, Baugh, Blanton, Blumenthal, Bruzual, Bryan, Buta, Cardelli, Cen, Cen, Cen, Cole, Cross, Davis, Davis, de Vaucouleurs, Dekel, Efstathiou, Efstathiou, Eisenstein, Ellis, Fioc, Fried, Fukugita, Fukugita, Gould, Hu, J.P. Ostriker, K. Nagamine, Katz, Kauffmann, Kravtsov, Lange, Lilly, Lin, M. Fukugita, Nagamine, Ostriker, Perlmutter, R. Cen, Rees, Rees, Rieke, Riess, Salpeter, Silk, Sneden, Somerville, Steidel, Steidel, Turner, White   +52 more
core   +1 more source

THE LOCAL [C ii] 158 μm EMISSION LINE LUMINOSITY FUNCTION [PDF]

, 2016
We present, for the first time, the local [C ii] 158 μm emission line luminosity function measured using a sample of more than 500 galaxies from the Revised Bright Galaxy Sample. [C ii] luminosities are measured from the Herschel PACS observations of the
S. Hemmati, Lin Yan, T. Díaz-Santos, L. Armus, P. Capak, A. Faisst, D. Masters   +6 more
semanticscholar   +1 more source

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

FEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

New model for calculation the radius of comet’s nucleus [PDF]

E3S Web of Conferences
In this work, a new equation derived to obtain some physical properties like radius and luminosity of comets using distances between the comet, the Earth and the Sun that represent the geocentric distance and heliocentric distance at applying it to a ...
Mohammed Abd-AL Hamza Mariam, Zaidan Khalaf Salman   +1 more
doaj   +1 more source

Thermal Energy and Luminosity Characterization of an Advanced Ignition System Using a Non-Intrusive Methodology in an Optically Accessible Calorimeter

Energies, 2023
To restrain the environmental impact of modern SI engines, igniters must guarantee stable combustions with low cycle-to-cycle variability in extreme operating conditions (high EGR, ultra-lean), via high energy release in the combustion chamber.
Roberto Martinelli, Federico Ricci, Gabriele Discepoli, Luca Petrucci, Stefano Papi, Carlo N. Grimaldi   +5 more
doaj   +1 more source

How covariant is the galaxy luminosity function?

, 2012
We investigate the error properties of certain galaxy luminosity function (GLF) estimators. Using a cluster expansion of the density field, we show how, for both volume and flux limited samples, the GLF estimates are covariant.
Bardeen, Beijersbergen, Benson, Binggeli, Blanton, Blanton, Bower, Cole, Cole, Cole, Cooray, Croton, Croton, Efstathiou, Faber, Felten, Folkes, Guo, Hu, Hu, Hubble, Ilbert, Kauffmann, Kauffmann, Kim, Kirshner, Lewis, Li, Lima, Loveday, Moore, Norberg, Norberg, Peebles, Press, Robert E. Smith, Robertson, Sandage, Schmidt, Sheth, Smith, Springel, Strauss, Tegmark, Trenti, Turner, Willmer, Yang, Zucca   +48 more
core   +1 more source

The X-ray luminosity function of local galaxies [PDF]

, 1999
We present an estimate of the local X-ray luminosity function and emissivity for different subsamples of galaxies namely Seyferts, LINERS, star-forming and passive (no-emission-line) galaxies.
Basilakos, S., Georgantopoulos, I., Plionis, M.   +2 more
core   +2 more sources

The CNOC2 Field Galaxy Luminosity Function. I. A Description of Luminosity Function Evolution

The Astrophysical Journal, 1999
We examine the evolution of the galaxy luminosity function (LF) using a sample of over 2000 galaxies, with 0.12 < z < 0.55 and 17.0 < Rc < 21.5, drawn from the Canadian Network for Observational Cosmology Field Galaxy Redshift Survey (CNOC2), at present the largest such sample at intermediate redshifts. We use UBVRcIc photometry to classify
Lin, H., Yee, H. K. C., Carlberg, R. G., Morris, S. L., Sawicki, M., Patton, D. R., Wirth, G., Shepherd, C. W.   +7 more
openaire   +2 more sources