Results 41 to 50 of about 221,703 (328)

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

High-redshift cosmography [PDF]

Journal of Cosmology and Astroparticle Physics, 2010
We constrain the parameters describing the kinematical state of the universe using a cosmographic approach, which is fundamental in that it requires a very minimal set of assumptions (namely to specify a metric) and does not rely on the dynamical equations for gravity.
Vitagliano, V., Xia, J. . Q., Liberati, Stefano, Viel, Matteo   +3 more
openaire   +4 more sources

Hierarchical Bayesian inference of galaxy redshift distributions from photometric surveys [PDF]

, 2016
Accurately characterizing the redshift distributions of galaxies is essential for analysing deep photometric surveys and testing cosmological models.
Leistedt, Boris, Mortlock, Daniel J., Peiris, Hiranya V.   +2 more
core   +2 more sources

Photometric redshifts and quasar probabilities from a single, data-driven generative model

, 2012
We describe a technique for simultaneously classifying and estimating the redshift of quasars. It can separate quasars from stars in arbitrary redshift ranges, estimate full posterior distribution functions for the redshift, and naturally incorporate ...
Abazajian, Abell, Adam D. Myers, Aihara, Assef, Atlee, Ball, Ball, Baum, Benjamin A. Weaver, Benítez, Bovy, Bowen, Budavári, Butler, David Schiminovich, David W. Hogg, Donald P. Schneider, Eisenstein, Erin S. Sheldon, Fan, Francis, Glikman, Gunn, Gunn, Hennawi, Hennawi, Hennawi, Hennawi, Hogg, Hook, Hopkins, Hutchings, Ivezić, Ivezić, Ivezić, Jimenez, Jo Bovy, Jon Brinkmann, Joseph F. Hennawi, Jurić, Kaczmarczik, Kelly, Kozłowski, Kozłowski, Lupton, MacLeod, MacLeod, Martin, Morrissey, Myers, Myers, Myers, Myers, Møller, Padmanabhan, Peth, Picard, Pier, Prochaska, Richard G. McMahon, Richards, Richards, Richards, Richards, Richards, Richards, Richards, Ross, Schlegel, Schmidt, Schneider, Scranton, Scranton, Shen, Smith, Stoughton, Suchkov, Trammell, Vanden Berk, Weinstein, Worseck, Yip, York   +83 more
core   +1 more source

Peering into the Cosmic Dawn: JWST Cycle 1 Data Reveals Early Galaxy Candidates at Redshifts z > 9.5

Edinburgh Student Journal of Science
Observing high-redshift objects provides a window into the past, enabling insight into galaxy formation, matter distribution, and the nature of dark matter and energy.
Sev Zielinska
doaj   +1 more source

An improved redshift indicator for Gamma-Ray Bursts, based on the prompt emission

, 2006
We propose an improved version of the redshift indicator developed by Atteia (2003), which gets rid of the dependence on the burst duration and provides better estimates for high-redshift GRBs.
Atteia, Jean-Luc, Collaboration, the the HETE Science Team, Lamb, Don Q., Pélangeon, Alexandre, Ricker, George R.   +4 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

On the Anticorrelation between Duration and Redshift in Gamma-Ray Bursts

The Astrophysical Journal, 2023
For gamma-ray bursts (GRBs) with durations greater than two seconds (so-called long GRBs), the intrinsic prompt gamma-ray emission appears, on average, to last longer for bursts at lower redshifts.
Nicole Lloyd-Ronning, Jarrett Johnson, Roseanne M. Cheng, Ken Luu, Phoebe Upton Sanderbeck, Lailani Kenoly, Celia Toral   +6 more
doaj   +1 more source

Photometric Redshifts and High‐Redshift Galaxies [PDF]

Publications of the Astronomical Society of the Pacific, 1999
The Workshop "Photometric Redshifts and High‐Redshift Galaxies" was held at the Observatories of the Carnegie Institution of Washington, in Pasadena, California, on 1999 April 28–30. The 70 participants were greeted with atypically cool, overcast weather, but this did not cloud or dampen the discussions.
openaire   +2 more sources

Puzzlement about thermal redshift

, 1997
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, Clark, Combourieu, Compton, Dehn, Indebetouw, Jackson, James, Jaynes, Josephson, Jüttner, Kandpal, Kidd, Pound, Shapiro, Shapiro, Singwi, Trooster, Van Hove, Van Vleck, Vesselin I. Dimitrov, Wolf   +21 more
core   +1 more source