Results 61 to 70 of about 752,186 (375)

On the Root Cause of the Host “Mass Step” in the Hubble Residuals of Type Ia Supernovae

open access: yesThe Astrophysical Journal, 2023
It is well established that the Hubble residuals of Type Ia supernovae (SNe Ia) show the luminosity step with respect to their host galaxy stellar masses.
Chul Chung   +6 more
doaj   +1 more source

Quasar-galaxy and galaxy-galaxy cross-correlations: model predictions with realistic galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2003
11 pages, 4 figures, matches version in ...
Ravi K. Sheth   +2 more
openaire   +3 more sources

First results from the IllustrisTNG simulations: the galaxy colour bimodality [PDF]

open access: yes, 2017
We introduce the first two simulations of the IllustrisTNG project, a next generation of cosmological magnetohydrodynamical simulations, focusing on the optical colors of galaxies.
D. Nelson   +11 more
semanticscholar   +1 more source

The clustering of the SDSS DR7 Main Galaxy Sample I: a 4 per cent distance measure at z=0.15 [PDF]

open access: yes, 2014
We create a sample of spectroscopically identified galaxies with z < 0.2 from the Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7), covering 6813 deg(2).
A. Ross   +5 more
semanticscholar   +1 more source

Automatic quantitative morphological analysis of interacting galaxies [PDF]

open access: yes, 2013
The large number of galaxies imaged by digital sky surveys reinforces the need for computational methods for analyzing galaxy morphology. While the morphology of most galaxies can be associated with a stage on the Hubble sequence, morphology of galaxy ...
Holincheck, Anthony   +2 more
core   +1 more source

Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Main Galaxy Sample [PDF]

open access: yes, 2002
We describe the algorithm that selects the main sample of galaxies for spectroscopy in the Sloan Digital Sky Survey (SDSS) from the photometric data obtained by the imaging survey.
M. Strauss   +3 more
semanticscholar   +1 more source

Metric completions, the Heine-Borel property, and approachability

open access: yesOpen Mathematics, 2020
We show that the metric universal cover of a plane with a puncture yields an example of a nonstandard hull properly containing the metric completion of a metric space.
Kanovei Vladimir   +2 more
doaj   +1 more source

The galaxy environment in GAMA G3C groups using the Kilo Degree Survey Data Release 3 [PDF]

open access: yes, 2018
We aim to investigate the galaxy environment in GAMA Galaxy Groups Catalogue (G3C) using a volume-limited galaxy sample from the Kilo Degree Survey Data Release 3.
Bilicki, M.   +15 more
core   +5 more sources

Counterrotation in Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1999
The phenomenon of counterrotation is observed when two galaxy components have their angular momenta projected antiparallel onto the sky. It follows that if the two components rotate around the same axis, the counter-rotation is intrinsic. On the contrary the counterrotation is only apparent if the rotation axes are misaligned and the line-of-sight lies
BERTOLA, FRANCESCO   +1 more
openaire   +5 more sources

The Millennium Galaxy Catalogue: Galaxy Bimodality [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
AbstractGalaxy bimodality is caused by the bulge-disc nature of galaxies as opposed to two distinct galaxy classes. This is evident in the colour-structure plane which clearly shows that elliptical galaxies (bulge-only) lie in the red compact peak and late-type spiral galaxies (disc-dominated) lie in the blue diffuse peak.
Jochen Liske   +2 more
openaire   +3 more sources

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