Results 11 to 20 of about 219,246 (225)
Puzzlement about thermal redshift [PDF]
Discussed is the classical theoretical description of the experimentally established thermal redshift of spectral lines. Straightforward calculation of the observable spectrum from a canonical ensamble of monochromatic radiators yileds overall blueshift ...
Blatter +21 more
core +3 more sources
On estimating redshift and luminosity distributions in photometric redshift surveys [PDF]
The luminosity functions of galaxies and quasars provide invaluable information about galaxy and quasar formation. Estimating the luminosity function from magnitude limited samples is relatively straightforward, provided that the distances to the objects
Sheth, Ravi K.
core +7 more sources
Non-cosmological redshifts [PDF]
L’introduction de lignes d’univers brisées dans la théorie de la gravitation de Hoyle et Narlikar permet de rendre compte de la création de matière. Cette matière qui se compose de masses inertielles plus petites se manifeste par des décalages spectraux vers le rouge anormaux.
J. V. Narlikar
openalex +4 more sources
Optimal redshift weighting for redshift-space distortions [PDF]
10 pages, 5 figures, submitted to ...
Will J. Percival +6 more
openaire +6 more sources
The 2dF Galaxy Redshift Survey: spectra and redshifts [PDF]
The 2dF Galaxy Redshift Survey (2dFGRS) is designed to measure redshifts for approximately 250 000 galaxies. This paper describes the survey design, the spectroscopic observations, the redshift measurements and the survey data base. The 2dFGRS uses the 2dF multifibre spectrograph on the Anglo-Australian Telescope, which is capable of observing 400 ...
Colless, Matthew +29 more
openaire +5 more sources
On the gravitational redshift [PDF]
The study of the gravitational redshift\,---\,a relative wavelength increase of $\approx 2 \times 10^{-6}$ was predicted for solar radiation by Einstein in 1908\,---\,is still an important subject in modern physics. In a dispute whether or not atom interferometry experiments can be employed for gravitational redshift measurements, two research teams ...
Klaus Wilhelm, Bhola N. Dwivedi
openaire +3 more sources
BLAST: THE REDSHIFT SURVEY [PDF]
Accepted for publication in the Astrophysical Journal. Maps and associated results are available at http://blastexperiment.info/
Eales, Stephen +18 more
openaire +7 more sources
The VIMOS VLT Deep Survey - First epoch VVDS-Deep survey: 11564 spectra with 17.5<=IAB<=24, and the redshift distribution over 0< z <=5 [PDF]
This paper presents the ``First Epoch'' sample from the VIMOS VLT Deep Survey (VVDS). The VVDS goals, observations, data reduction with VIPGI, and redshift measurement with KBRED are discussed.
A. Bongiorno +47 more
core +4 more sources
Metals at High Redshifts [PDF]
The amount of metals present in the Universe and its cosmological evolution is a key issue for our understanding of how star formation proceeds from the collapse of the first objects to the formation of present day galaxies. We discuss here recent results at the two extremes of the density scale.1.
Patrick Petitjean, Patrick Petitjean
openaire +4 more sources
The one-dimensional Schrödinger equation, applied to the H2 intramolecular stretch coordinate in singly to quadruply occupied large cages in extended Type II (sII) hydrogen clathrate hydrate, was solved numerically herein via potential-energy scans from ...
Christian J. Burnham +3 more
doaj +1 more source

