Results 51 to 60 of about 335,375 (390)

A new statistic for redshift surveys: the redshift dispersion of galaxies [PDF]

New Astronomy, 1997
LaTex 27 pages, 8 Postscript figures, added one figure and some changes to the ...
F. J. Summers, Jeremy Kepner, Michael A. Strauss   +2 more
openaire   +3 more sources

Testing KiDS cross-correlation redshifts with simulations [PDF]

A&A 642, A200 (2020), 2020
Measuring cosmic shear in wide-field imaging surveys requires accurate knowledge of the redshift distribution of all sources. The clustering-redshift technique exploits the angular cross-correlation of a target galaxy sample with unknown redshifts and a reference sample with known redshifts, and is an attractive alternative to colour-based methods of ...
arxiv   +1 more source

QUANTIFYING PHOTOMETRIC REDSHIFT ERRORS IN THE ABSENCE OF SPECTROSCOPIC REDSHIFTS [PDF]

The Astrophysical Journal, 2010
9 pages in ApJ format, 8 figures.
Ryan Quadri, Rik J. Williams, Rik J. Williams   +2 more
openaire   +3 more sources

Type Ia supernova Hubble diagrams with host galaxy photometric redshifts [PDF]

JCAP 10(2022) 065, 2022
The case of SN Ia Hubble diagrams from photometrically selected samples using photometric SN host galaxy redshifts is investigated. The host redshift uncertainties and the contamination by core collapse SNe are addressed. As a test, we use the 3-year photometric SN Ia sample of the SuperNova Legacy Survey (SNLS), made of 437 objects between 0.1 and 1 ...
arxiv   +1 more source

Clustering-based redshift estimation: comparison to spectroscopic redshifts [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
13 pages. Submitted to MNRAS.
S. J. Schmidt, Mubdi Rahman, Christopher B. Morrison, Ryan Scranton, Brice Ménard, Brice Ménard   +5 more
openaire   +3 more sources

Clustering of galaxies at high redshifts [PDF]

Monthly Notices of the Royal Astronomical Society, 1998
4 pages, uses MN.sty, revised version, accepted for publication in the ...
openaire   +3 more sources

Complementarity of the redshift drift [PDF]

Physical Review D, 2011
Accepted for publication in Phys. Rev.
Moraes, Bruno, POLARSKI, David
openaire   +4 more sources

The 2dF Galaxy Redshift Survey: power-spectrum analysis of the final data set and cosmological implications [PDF]

, 2005
We present a power-spectrum analysis of the final 2dF Galaxy Redshift Survey (2dFGRS), employing a direct Fourier method. The sample used comprises 221 414 galaxies with measured redshifts.
S. Cole, W. Percival, J. Peacock, P. Norberg, C. Baugh, C. Frenk, I. Baldry, J. Bland-Hawthorn, T. Bridges, R. Cannon, M. Colless, C. Collins, W. Couch, N. Cross, N. Cross, G. Dalton, V. Eke, R. Propris, S. Driver, G. Efstathiou, R. Ellis, K. Glazebrook, C. Jackson, A. Jenkins, O. Lahav, I. Lewis, S. Lumsden, S. Maddox, D. Madgwick, B. Peterson, W. Sutherland, K. Taylor   +31 more
semanticscholar   +1 more source

Variable G versus the Accelerated Expansion of the Universe

Open Astronomy, 2017
It is shown that the hypothesis of permitting variability of the Newtonian constant G, increasing with the local density of dark matter, implies that there is no need for the introduction of a cosmological constant or accelerated expansion of the ...
Colenbrander Bernard G., Hulscher Willem S.   +1 more
doaj   +1 more source

Status of racial disparities between black and white women undergoing assisted reproductive technology in the US

Reproductive Biology and Endocrinology, 2020
Background Numerous studies have demonstrated substantial differences in assisted reproductive technology outcomes between black non-Hispanic and white non-Hispanic women. We sought to determine if disparities in assisted reproductive technology outcomes
D. B. Seifer, B. Simsek, E. Wantman, A. M. Kotlyar   +3 more
doaj   +1 more source