Results 61 to 70 of about 224,275 (141)

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

Luminosity function and jet structure of Gamma Ray Bursts [PDF]

, 2014
The structure of Gamma Ray Burst (GRB) jets impacts on their prompt and afterglow emission properties. The jet of GRBs could be uniform, with constant energy per unit solid angle within the jet aperture, or it could instead be structured, namely with ...
Ghirlanda, G., Ghisellini, G., Nappo, F., Pescalli, A., Salafia, O. S., Salvaterra, R.   +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, Bertin E., Biviano A., Bristow P. D., Burstein D., Christian Marinoni, Davies J., Disney M. J., Dominguez-Tenreiro R., Efstathiou G., Ellis R. S., Garcia A. M., Garcia A. M., Gardner J. P., Giuliano Giuricin, Glazebrook K., Glazebrook K., Gudehus D., Hasegawa T., Heydon-Dumbleton N. H., Heyl J., Hudson M. J., Iovino A., Lumsden S. L., Maddox S. J., Metcalfe N., Mobasher B., Noguchi M., Paturel G., Phillipps S., Pierluigi Monaco, Rauzy S., Rees M. J., Rousseau J., Saunders W., Shanks T., Shi X., Zucca E., Zucca E.   +38 more
core   +3 more sources

High-Redshift Quasars Found in Sloan Digital Sky Survey Commissioning Data IV: Luminosity Function from the Fall Equatorial Stripe Sampl [PDF]

, 2000
This is the fourth paper in a series aimed at finding high-redshift quasars from five-color imaging data taken along the Celestial Equator by the SDSS. during its commissioning phase.
Alexander S. Szalay, Boyle B. J., Donald G. York, Donald P. Schneider, Efstathiou G., G. S. Hennessy, Gillian R. Knapp, Gordon T. Richards, István Csabai, James Annis, James E. Gunn, Jeffrey A. Munn, Jeffrey A. Newman, Jeffrey R. Pier, John E. Anderson, Jr., Lynden-Bell D., Marc Davis, Masataka Fukugita, Michael A. Strauss, Miyaji T., Neta A. Bahcall, Omont A., Peter Z. Kunszt, Richard L. White, Robert B. Hindsley, Robert H. Becker, Robert H. Lupton, Robert J. Brunner, Timothy A. McKay, Xiaohui Fan, Željko Ivezić   +30 more
core   +2 more sources

The luminosity function of cluster pulsars [PDF]

AIP Conference Proceedings, 2011
4 pages, 2 figures, to appear in AIP Conference Proceedings of Pulsar Conference 2010 "Radio Pulsars: a key to unlock the secrets of the Universe", Sardinia, October ...
Manjari Bagchi, Duncan R. Lorimer, Marta Burgay, Nicolò D’Amico, Paolo Esposito, Alberto Pellizzoni, Andrea Possenti   +6 more
openaire   +3 more sources

The Hα and [O iii] λ5007 Luminosity Functions of 1.2 < z < 1.9 Emission-line Galaxies from Hubble Space Telescope (HST) Grism Spectroscopy

The Astrophysical Journal, 2023
Euclid and the Roman Space Telescope (Roman) will soon use grism spectroscopy to detect millions of galaxies via their H α and [O iii ] λ 5007 emission. To better constrain the expected galaxy counts from these instruments, we use a vetted sample of 4239
Gautam Nagaraj, Robin Ciardullo, William P. Bowman, Alex Lawson, Caryl Gronwall   +4 more
doaj   +1 more source

The HerMES Local Luminosity Function [PDF]

Proceedings of the International Astronomical Union, 2015
AbstractWe exploit the Herschel Extragalactic Multi-Tiered Survey (HerMES) dataset along with ancillary multi-wavelength photometry and spectroscopy from the Spitzer Data Fusion to provide the most accurate determination to date of the local (0.02<z<0.5) Far-Infrared Luminosity and Star Formation Rate Function.
MARCHETTI, LUCIA, VACCARI, MATTIA, FRANCESCHINI, ALBERTO   +2 more
openaire   +2 more sources

A Bias-corrected Luminosity Function for Red Supergiant Supernova Progenitor Stars

The Astrophysical Journal Letters
The apparent tension between the luminosity functions of red supergiant (RSG) stars and of RSG progenitors of Type II supernovae (SNe) is often referred to as the RSG problem and it motivated some to suggest that many RSGs end their life without an SN ...
Nora L. Strotjohann, Eran O. Ofek, Avishay Gal-Yam   +2 more
doaj   +1 more source

The M31 Globular Cluster Luminosity Function

, 2000
We combine our compilation of photometry of M31 globular cluster and probable cluster candidates with new near-infrared photometry for 30 objects. Using these data we determine the globular cluster luminosity function (GCLF) in multiple filters for the ...
Auriere M., Battistini P. L., Battistini P. L., Baumgardt H., De Marchi G., Dubath P., Jean P. Brodie, John P. Huchra, Kavelaars J. J., Mochejska B. J., Mostek N., Okazaki T., Parmentier G., Pauline Barmby, Scalo J. M., Sharov A. S., Vetesnik M.   +16 more
core   +1 more source

White dwarf cooling sequences and cosmochronology

EPJ Web of Conferences, 2013
The evolution of white dwarfs is a simple gravothermal process. This means that their luminosity function, i.e. the number of white dwarfs per unit bolometric magnitude and unit volume as a function of bolometric magnitude, is a monotonically increasing ...
García-Berro E., Artigas A., Isern J.
doaj   +1 more source