Results 31 to 40 of about 180,283 (246)
PROBES. I. A Compendium of Deep Rotation Curves and Matched Multiband Photometry
The Astrophysical Journal Supplement Series, 2022 We present the Photometry and Rotation Curve Observations from Extragalactic Surveys (PROBES) compendium of extended rotation curves for 3163 late-type spirals, with matching homogeneous multiband photometry for 1677 of them.
Connor Stone +4 more
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Collisionless evaporation from cluster elliptical galaxies [PDF]
, 2003 We describe a particular aspect of the effects of the parent cluster tidal field (CTF) on stellar orbits inside cluster Elliptical galaxies. In particular we discuss, with the aid of a simple numerical model, the possibility that collisionless stellar ...
Adams +29 more
core +4 more sources
The Asymmetry of Galaxies: Physical Morphology for Nearby and High‐Redshift Galaxies [PDF]
The Astrophysical Journal, 2000 We present a detailed study of rotational asymmetry in galaxies for both morphological and physical diagnostic purposes. An unambiguous method for computing asymmetry is developed, robust for both distant and nearby galaxies. By degrading real galaxy images, we test the reliability of this asymmetry measure over a range of observational conditions, e.g.
Conselice, Christopher J. +2 more
openaire +2 more sources
On the Dwarf Galaxy Rotation Curve Diversity Problem
Galaxies, 2018 In this paper, we show how baryonic physics can solve the problem of the striking diversity in dwarf galaxy rotation curves shapes. To this aim, we compare the distribution of galaxies of the SPARC sample, in the plane V2kpc-VRlast (V2kpc being the ...
Antonino Del Popolo +2 more
doaj +1 more source
Extragalactic filament detection with a layer smoothing method [PDF]
, 2014 Filaments are clearly visible in galaxy distributions, but they are hardly detected by computer algorithms. Most methods of filament detection can be used only with numerical simulations of a large-scale structure.
Tugay, Anatoliy V.
core +2 more sources
Robust Field-level Likelihood-free Inference with Galaxies
The Astrophysical Journal, 2023 We train graph neural networks to perform field-level likelihood-free inference using galaxy catalogs from state-of-the-art hydrodynamic simulations of the CAMELS project.
Natalí S. M. de Santi +14 more
doaj +1 more source
Physics of a partially ionized gas relevant to galaxy formation simulations -- the ionization potential energy reservoir [PDF]
, 2013 Simulation codes for galaxy formation and evolution take on board as many physical processes as possible beyond the standard gravitational and hydrodynamical physics.
De Rijcke, Sven +3 more
core +2 more sources
Origin of very high energy emission in galaxy clusters
EPJ Web of Conferences, 2017 The Perseus cluster of galaxies with the central galaxy NGC 1275 is ideally suitable for studying both the physics of relativistic jets from Active Galactic Nuclei and for revealing the feedback role of the central galaxy.
Sinitsyna V.G., Sinitsyna V.Y.
doaj +2 more sources
Gravitational instability of a nonrotating galaxy
Physical Review Special Topics. Accelerators and Beams, 2009 Gravitational instability of the distribution of stars in a galaxy is a well-known phenomenon in astrophysics. This report is an attempt to analyze this phenomenon by applying standard tools developed in accelerator physics.
Alexander W. Chao
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The Astrophysical Journal, 2023 Galaxies show different halo scaling relations such as the radial acceleration relation, the mass discrepancy acceleration relation (MDAR), or the dark matter (DM) surface density relation.
A. Krut +4 more
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