Results 1 to 10 of about 10,860,787 (405)

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, Baraffe, Bonnell, Christopher F. McKee, Connelley, Covey, Dunham, Dunham, Enoch, Enoch, Evans, Fuchs, Greene, Hartmann, Heiderman, Hosokawa, Hosokawa, Kirk, Kratter, Masunaga, McKee, McKee, McKee, McLaughlin, Mellon, Miller, Muzerolle, Myers, Myers, Offner, Offner, Offner, Palla, Pech, Robitaille, Sandell, Stella S. R. Offner, Tan, Vorobyov, White, White, Whitney, Young, Zhu   +43 more
core   +3 more sources

The Luminosity Function of M3 [PDF]

The Astrophysical Journal, 1999
We present a high precision, large sample luminosity function (LF) for the Galactic globular cluster M3. With a combination of ground based and Hubble Space Telescope data we cover the entire radial extent of the cluster.
A. Chieffi, B. Dorman, B. Paltrinieri, Bell R. A., Bergbusch P. A., Buonanno R., Buonanno R., Cassisi S., Castellani V., Chieffi A., De Santis R., Degl'Innocenti S., E. Carretta, F. Fusi Pecci, F. R. Ferraro, Ferraro F. R., Ferraro F. R., Ferraro F. R., Fusi Pecci F., King I. R., Kraft R. P., Krist J., Laget M., O. Straniero, Pont F., Proffit C. R., R. Buonanno, R. T. Rood   +27 more
core   +3 more sources

On the normalized FRB luminosity function [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
Thirty-three fast radio bursts (FRBs) had been detected by March 2018. Although the sample size is still limited, meaningful statistical studies can already be carried out.
R. Luo, Kejia Lee, D. Lorimer, Bing Zhang   +3 more
semanticscholar   +5 more sources

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
Shiv K. Sethi, S. G. Bhargavi
arxiv   +6 more sources

The luminosity function of field galaxies [PDF]

Astrophysics, 2011
Schmidt's method for construction of luminosity function of galaxies is generalized by taking into account the dependence of density of galaxies from the distance in the near Universe.
A Dressler, A Dressler, A Jr, A Sandage, A Sandage, A. P. Mahtessian, AI Zabludoff, ALB Ribeiro, AP Mahtessian, AP Mahtessian, B Binggeli, B Garilli, B Garilli, BC Bromley, BM Garilli, C Marinoni, CA Valotto, CNA Willmer, D Lynden-Bell, DH Gudehus, E Gaidos, G Efstathiou, H Jerjen, H Lin, H Muriel, HC Ferguson, J Choloniewski, J Huchra, J Loveday, JE Felten, JF Nicol, LF Barrientos, M Paolillo, M Ramella, M Schmidt, MA Arakelyan, MJ Cuesta-Bolao, MM Colless, N Trentham, N Trentham, O Lopez-Cruz, O Lopez-Cruz, P Schechter, PM Lugger, RO Marzke, S Andreon, S Andreon, S Rayzy, SE Zepf, SL Lumsden, SP Driver, T Goto, VYu Terebizh, WR Oegerle, WR Oegerle   +54 more
core   +3 more sources

The Luminosity Function of Omega Centauri [PDF]

The Astronomical Journal, 1998
Deep HST-WFPC2 observations of the stellar population in the globular cluster Omega Cen (NGC 5139) have been used to measure the luminosity function of main sequence stars at the low-mass end. Two fields have been investigated, located respectively ~4.6'
Baraffe I., Chabrier G., Dauphole B., De Marchi G., Guido De Marchi, Meylan G.   +5 more
core   +5 more sources

Evolution of the Halpha luminosity function [PDF]

The Astrophysical Journal, 2009
The Smithsonian Hectospec Lensing Survey (SHELS) is a window on the star formation history over the last 4 Gyr. SHELS is a spectroscopically complete survey for Rtot < 20.3 over 4 square degrees.
Adelman-McCarthy, Balogh, Barton, Bell, Calzetti, Capak, Dale, Daniel G. Fabricant, Eduard Westra, Ellison, Fujita, Gallego, Geller, Hopkins, Hopkins, Hopkins, Ian Dell'Antonio, Jones, Kewley, Lilly, Lilly, Lin, Ly, Madau, Margaret J. Geller, Massarotti, Michael J. Kurtz, Mink, Moorwood, Morioka, Park, Patton, Pérez-González, Shim, Shioya, Tremonti, Tresse, Villar, Wittman, Woods, Woods   +40 more
core   +3 more sources

A Left and Right Truncated Schechter Luminosity Function for Quasars

Galaxies, 2017
The luminosity function for quasars (QSOs) is usually fitted by a Schechter function. The dependence of the number of quasars on the redshift, both in the low and high luminosity regions, requires the inclusion of a lower and upper boundary in the ...
Lorenzo Zaninetti
doaj   +4 more sources

Evolution of the AGN UV luminosity function from redshift 7.5 [PDF]

Monthly notices of the Royal Astronomical Society, 2018
Determinations of the ultraviolet (UV) luminosity function of active galactic nuclei (AGN) at high redshifts are important for constraining the AGN contribution to reionization and understanding the growth of supermassive black holes.
Girish Kulkarni, G. Worseck, J. Hennawi
semanticscholar   +3 more sources

The Luminosity Function in Groups of Galaxis [PDF]

EAS Publications Series, 2010
With targeted imaging of groups in the local volume, the regions of collapse around bright galaxies can be clearly identified by the distribution of dwarfs and luminosity functions can be established to very faint levels.
Tully, R. Brent
core   +4 more sources