Results 271 to 280 of about 5,279,442 (297)
Some of the next articles are maybe not open access.

The Morphological Luminosity Function

1988
We obtain the morphological luminosity function for galaxies assuming that they form at high density regions of a filtered Gaussian random field. We compare our results with some observations of the LF for E and E+SO galaxies. Using scale-free spectra, we obtain bell-shaped curves that follow the observations.
J. L. Sanz, E. Martínez-González
openaire   +1 more source

The radio luminosity function and the luminosity diameter function of extragalactic radio sources

Astronomische Nachrichten, 1971
AbstractOn the basis of a radio index‐surface brightness diagram recently published, the luminosity function and the luminosity diameter function are obtained. The uncertainties due to the incompleteness of the sample are of the same order as the statistical uncertainties.
openaire   +1 more source

The Quasar Luminosity Function

1993
Recent work on the quasar luminosity function at radio, optical and X-ray wavelengths is reviewed. It is demonstrated that the evolution of the quasar luminosity function in all three regimes is marked by a strong and approximately similar power-law increase in luminosity, L ∝ (1 + z) 3±0.5, between the present epoch and z ≈ 2.
openaire   +1 more source

On the FRB luminosity function – – II. Event rate density

Monthly Notices of the Royal Astronomical Society, 2020
Wei-Yang Wang, Rui Luo
exaly  

The ALMA REBELS Survey: the first infrared luminosity function measurement at z  ∼ 7

Monthly Notices of the Royal Astronomical Society, 2023
Pascal Oesch   +2 more
exaly  

THE LUMINOSITY FUNCTION

Annals of the New York Academy of Sciences, 1941
openaire   +1 more source

The Durham/UKST Galaxy Redshift Survey - II. The field galaxy luminosity function

Monthly Notices of the Royal Astronomical Society, 1998
Tom Shanks, R Fong, Q A Parker
exaly   +2 more sources

The Faint End of the Stellar Luminosity Function

Annual Review of Astronomy and Astrophysics, 1993
Michael Bessell, Guy Stringfellow
exaly  

Luminosity function of stars

Astrophysics, 1977
R. A. Bartaya, E. K. Kharadze
openaire   +1 more source

Deriving an X-ray luminosity function of dwarf novae based on parallax measurements

Monthly Notices of the Royal Astronomical Society, 2010
J R Thorstensen
exaly  

Home - About - Disclaimer - Privacy