Results 11 to 20 of about 656,580 (174)

New Analysis of Dark Matter in Elliptical Galaxies [PDF]

open access: yesMNRAS, 518, 2, 2845-2852 (2023), 2022
We investigate a correlation between the dark matter content of elliptical galaxies and their ellipticity that was initially reported in 2014. We use new determinations of dark matter and ellipticities that are posterior to that time. Our data set consists of 237 elliptical galaxies passing a strict set of criteria.
arxiv   +1 more source

ELLIPTICAL GALAXY MASSES OUT TO FIVE EFFECTIVE RADII: THE REALM OF DARK MATTER [PDF]

open access: yes, 2011
We estimate the masses of elliptical galaxies out to five effective radii using planetary nebulae and globular clusters as tracers. A sample of 15 elliptical galaxies with a broad variation in mass is compiled from the literature. A distribution function-
A. Deason   +3 more
semanticscholar   +1 more source

Resequencing the Hubble sequence and the quadratic (black hole mass)-(spheroid stellar mass) relation for elliptical galaxies [PDF]

open access: yesMNRAS (2023) 522, 3588, 2023
One of the most protracted problems in astronomy has been understanding the evolution of galaxy morphology. Much discussion has surrounded how lenticular galaxies may form a bridging population between elliptical and spiral galaxies. However, with recourse to a galaxy's central black hole mass, accretion-built spiral galaxies have emerged as the ...
arxiv   +1 more source

A CENSUS OF BARYONS AND DARK MATTER IN AN ISOLATED, MILKY WAY SIZED ELLIPTICAL GALAXY [PDF]

open access: yes, 2010
We present a study of the dark and luminous matter in the isolated elliptical galaxy NGC 720, based on deep X-ray observations made with the Chandra and Suzaku observatories.
P. Humphrey   +4 more
semanticscholar   +1 more source

The dust morphology of the elliptical Galaxy M 86 with SPIRE [PDF]

open access: yes, 2010
We present Herschel-SPIRE observations at 250-500 mu m of the giant elliptical galaxy M 86 and examine the distribution of the resolved cold dust emission and its relation with other galactic tracers.
H. Gomez   +60 more
semanticscholar   +1 more source

The Gravitational Lens CFRS03.1077 [PDF]

open access: yes, 2002
An exquisite gravitational arc with a radius of 2.1" has been discovered around the z = 0.938 field elliptical galaxy CFRS03.1077 during HST observations of Canada-France Redshift Survey (CFRS) fields.
A. Matzkin   +9 more
core   +4 more sources

The PN.S elliptical galaxy survey: A standard ΛCDM halo around NGC 4374? [PDF]

open access: yes, 2010
As part of our current programme to test ACDM predictions for dark matter (DM) haloes using extended kinematical observations of early-type galaxies, we present a dynamical analysis of the bright elliptical galaxy NGC 4374 (M84) based on ∼450 planetary ...
N. Napolitano   +12 more
semanticscholar   +1 more source

Galaxy Light Concentration. I. Index stability and the connection with galaxy structure, dynamics, and supermassive black holes [PDF]

open access: yes, 2001
We explore the stability of different galaxy light concentration indices as a function of the outermost observed galaxy radius. With a series of analytical light-profile models, we show mathematically how varying the radial extent to which one measures a
Caon, N.   +2 more
core   +3 more sources

SDSS J150634.27+013331.6: the second compact elliptical galaxy in the NGC 5846 group★ [PDF]

open access: yes, 2010
We report the discovery of the second compact elliptical (cE) galaxy SDSS J150634.27 + 013331.6 in the nearby NGC 5846 group by the Virtual Observatory (VO) workflow .
I. Chilingarian, G. Bergond
semanticscholar   +1 more source

Double-nucleus elliptical MCG-01-12-005 in an X-ray emitting cluster of galaxies [PDF]

open access: yes, 2015
The scenario of galaxy formation is believed to follow a structure that builds up from the bottom, with large galaxies being formed by several merging episodes of smaller ones.
Bassani, Loredana   +3 more
core   +2 more sources

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