Results 51 to 60 of about 295,900 (371)

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

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

The Zwicky Transient Facility Bright Transient Survey. I. Spectroscopic Classification and the Redshift Completeness of Local Galaxy Catalogs [PDF]

Astrophysical Journal, 2019
The Zwicky Transient Facility (ZTF) is performing a three-day cadence survey of the visible northern sky (∼3π) with newly found transient candidates announced via public alerts.
U. C. Fremling, A. Miller, Y. Sharma, A. Dugas, D. Perley, Kirsty Taggart, J. Sollerman, A. Goobar, M. Graham, J. Neill, J. Nordin, M. Rigault, R. Walters, I. Andreoni, A. Bagdasaryan, J. Belicki, C. Cannella, E. Bellm, S. Cenko, K. De, R. Dekany, S. Frederick, V. Golkhou, M. Graham, G. Helou, A. Ho, M. Kasliwal, T. Kupfer, R. Laher, A. Mahabal, F. Masci, R. Riddle, B. Rusholme, S. Schulze, D. Shupe, R. Smith, Lin Yan, Y. Yao, Z. Zhuang, S. Kulkarni   +39 more
semanticscholar   +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

Detecting Helium Reionization with Fast Radio Bursts

, 2020
Fast radio bursts (FRB) probe the electron density of the universe along the path of propagation, making high redshift FRB sensitive to the helium reionization epoch.
Linder, Eric V.
core   +1 more source

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 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

Redshift evolution of clustering [PDF]

Monthly Notices of the Royal Astronomical Society, 1997
We discuss how the redshift dependence of the observed two-point correlation function of various classes of objects can be related to theoretical predictions. This relation involves first a calculation of the redshift evolution of the underlying matter correlations.
MATARRESE, SABINO, COLES P., LUCCHIN, FRANCESCO, MOSCARDINI, LAURO   +3 more
openaire   +4 more sources

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

Redshifting rings of power [PDF]

Physical Review D, 2003
The cosmic microwave background (CMB) has provided a precise template for features in the linear power spectrum: the matter-radiation turnover, sound horizon drop, and acoustic oscillations. In a two dimensional power spectrum in redshift and angular space, the features appear as distorted rings, and yield simultaneous, purely geometric, measures of ...
Wayne Hu, Zoltan Haiman
openaire   +3 more sources