Results 1 to 10 of about 197 (84)

The galaxy luminosity function and the redshift-distance controversy (A Review) [PDF]

open access: yesProceedings of the National Academy of Sciences, 1986
The mean relation between distance and redshift for galaxies is reviewed as an observational question. The luminosity function for galaxies is an important ingredient and is given explicitly. We discuss various observational selection effects that are important for comparison of the linear and quadratic distance-redshift laws. Several lines of evidence
E E, Salpeter, G L, Hoffman
openaire   +2 more sources

Jellyfish galaxies with the IllustrisTNG simulations – citizen-science results towards large distances, low-mass hosts, and high redshifts

open access: yesMonthly Notices of the Royal Astronomical Society, 2023
ABSTRACT We present the ‘Cosmological Jellyfish’ project – a citizen-science classification program to identify jellyfish (JF) galaxies within the IllustrisTNG cosmological simulations. JF are satellite galaxies that exhibit long trailing gas features – ‘tails’ – extending from their stellar body.
Elad Zinger   +4 more
openaire   +3 more sources

Redshift-Distance Survey of Early-Type Galaxies. I. Sample Selection, Properties, and Completeness [PDF]

open access: yesThe Astronomical Journal, 2000
43 pages, 15 figures, submitted to the Astronomical ...
da Costa, L. N.   +7 more
openaire   +2 more sources

EXTRACTING ANGULAR DIAMETER DISTANCE AND EXPANSION RATE OF THE UNIVERSE FROM TWO-DIMENSIONAL GALAXY POWER SPECTRUM AT HIGH REDSHIFTS: BARYON ACOUSTIC OSCILLATION FITTING VERSUS FULL MODELING [PDF]

open access: yesThe Astrophysical Journal, 2009
We present a method for extracting the angular diameter distances, $D_A$, and the expansion rates, $H$, of the universe from the {\it two-dimensional} Baryon Acoustic Oscillations (BAO) in the galaxy power spectrum. Our method builds upon the existing algorithm called the "fit-and-extract" (FITEX) method, which allows one to extract only $D_A^2/H$ from
Shoji, Masatoshi   +2 more
openaire   +3 more sources

Directly observed relations in complete galaxy samples and the predictions of redshift-distance power laws [PDF]

open access: yesProceedings of the National Academy of Sciences, 1986
Directly observed relations in complete galaxy samples (apparent magnitude or diameter vs. redshift) are compared with the predictions of redshift-distance power laws. The predictions are obtained by an objective, nonparametric, statistically uniform, and fully reproducible procedure.
openaire   +2 more sources

Measuring the distance-redshift relation with the cross-correlation of gravitational wave standard sirens and galaxies [PDF]

open access: yesPhysical Review D, 2016
Gravitational waves from inspiraling compact binaries are known to be an excellent absolute distance indicator, yet it is unclear whether electromagnetic counterparts of these events are securely identified for measuring their redshifts, especially in the case of black hole-black hole mergers such as the one recently observed with the Advanced LIGO. We
openaire   +2 more sources

Determination of the Cosmic Distance Scale from Sunyaev‐Zel’dovich Effect andChandraX‐Ray Measurements of High‐Redshift Galaxy Clusters

open access: yesThe Astrophysical Journal, 2006
ApJ submitted (revised version)
Bonamente, M.   +5 more
openaire   +2 more sources

Extragalactic Science with the Orbiting Astronomical Satellite Investigating Stellar Systems (OASIS) Observatory. [PDF]

open access: yesSpace Sci Rev, 2023
Aalto S   +7 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy