Results 41 to 50 of about 219,246 (225)

The Origin of Low-redshift Event Rate Excess as Revealed by the Low-luminosity Gamma-Ray Bursts

The Astrophysical Journal, 2023
The relation between the event rate of long gamma-ray bursts and the star formation rate is still controversial, especially at the low-redshift end. Dong et al.
X. F. Dong, Z. B. Zhang, Q. M. Li, Y. F. Huang, K. Bian   +4 more
doaj   +1 more source

Stars were born in significantly denser regions in the early Universe [PDF]

, 2014
The density of the warm ionized gas in high-redshift galaxies is known to be higher than what is typical in local galaxies on similar scales. At the same time, the mean global properties of the high- and low-redshift galaxies are quite different.
Brinchmann, Jarle, Rahmati, Alireza, Shirazi, Maryam   +2 more
core   +1 more source

Scalar potential model of redshift and discrete redshift [PDF]

New Astronomy, 2006
36 pages, 17 figures, Article in press New ...
openaire   +3 more sources

Constraining Cosmic Evolution of Type Ia Supernovae [PDF]

, 2007
We present the first large-scale effort of creating composite spectra of high-redshift type Ia supernovae (SNe Ia) and comparing them to low-redshift counterparts.
A. C. Becker, A. Clocchiatti, A. G. Riess, A. Miceli, A. Rest, A. Zenteno, Alexei V. Filippenko, B. Leibundgut, B. P. Schmidt, C. Aguilera, C. W. Stubbs, Ciatti F., G. Miknaitis, G. Pignata, J. L. Tonry, J. Sollerman, J. Spyromilio, James J. B., K. Krisciunas, N. B. Suntzeff, P. Challis, P. M. Garnavich, Patat F., R. C. Smith, R. Covarrubias, R. P. Kirshner, Ryan J. Foley, S. Blondin, S. W. Jha, T. M. Davis, T. Matheson, W. Li, W. M. Wood‐Vasey, Younger P. F.   +33 more
core   +7 more sources

Clustering at High Redshift [PDF]

, 2006
2 pages Latex, To appear in the proceedings of "The mass of galaxies at low and high redshift", Venice, Oct 24-26, 2001,eds. R. Bender and A. Renzini (ESO Astrophysics Symposia, Springer-Verlag)
S. Cristiani, Stephane Arnouts, E. Vanzella, Adriano Fontana, P. Saracco   +4 more
openaire   +6 more sources

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

Reproductive Biology and Endocrinology, 2020
An amendment to this paper has been published and can be accessed via the original article.
David B. Seifer, Burcin Simsek, Ethan Wantman, Alexander M. Kotlyar   +3 more
doaj   +1 more source

The Radio-to-Submillimeter Flux Density Ratio of Galaxies as a Measure of Redshift [PDF]

, 2000
We re-examine the technique of determining the redshifts of galaxies from the ratio of the submillimeter-to-radio continuum flux densities based on a recently published catalog of 850~$\mu$m sources.
Bertoldi, Scott, Siebenmorgen
core   +3 more sources

Six Peaks Visible in the Redshift Distribution of 46,400 SDSS Quasars Agree with the Preferred Redshifts Predicted by the Decreasing Intrinsic Redshift Model

, 2006
The redshift distribution of all 46,400 quasars in the Sloan Digital Sky Survey (SDSS) Quasar Catalog III, Third Data Release, is examined. Six Peaks that fall within the redshift window below z = 4, are visible.
Bajan K., Bajan K., Box T. C., Burbidge G., D. McDiarmid, Karlsson K. G., Karlsson K. G., Karlsson K. G., Lake R. G., M. B. Bell, Roeder R. C.   +10 more
core   +2 more sources

The Inverse Redshift-Space Operator: Reconstructing Cosmological Density and Velocity Fields [PDF]

, 1999
We present the linear inverse redshift space operator which maps the galaxy density field derived from redshift surveys from redshift space to real space. Expressions are presented for observers in both the CMBR and Local Group rest frames.
Andy Taylor, Ballinger, Branchini, Croft, Fisher, Hamilton, Heavens, Heavens, Helen Valentine, Kaiser, Kaiser, Nusser, Peacock, Peebles, Peebles, Regös, Rowan-Robinson, Rowan-Robinson, Saunders, Schmoldt, Shaya, Strauss, Szalay, Tadros, Taylor, Taylor, Tegmark, Valentine, Watson, Webster, Yahil, Zaroubi, Zaroubi   +32 more
core   +2 more sources

The Problem of the Redshifts [PDF]

Symposium - International Astronomical Union, 1983
It is my intention in this brief paper to present once again some of the evidence which appears to show that a major contribution to the redshifts of QSOs and perhaps some galaxies is not associated with the expansion of the universe. The evidence continues to grow and it is of four kinds: (a)Evidence concerning galaxies with discrepant redshifts.(b ...
openaire   +2 more sources