Results 111 to 120 of about 3,870 (231)
The Baryonic Halos of Isolated Elliptical Galaxies
Galaxies, 2017 Without the interference of a number of events, galaxies may suffer in crowded environments (e.g., stripping, harassment, strangulation); isolated elliptical galaxies provide a control sample for the study of galaxy formation.
Ricardo Salinas +5 more
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On the rotation of elliptical galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1978 The tensor virial theorem is applied to models of early-type galaxies. First the theorem is applied to rotating elliptical galaxies whose constant-density surfaces are similar ellipsoids. A relationship is obtained between the observed rotations and the forms of generally triaxial galaxies.
openaire +1 more source
Mid-Infrared Emission from Elliptical Galaxies: Sensitivity to Stellar Age
, 2005 Mid-infrared observations (3.6–24 mm) of normal giant elliptical galaxies with the Spitzer Space Telescope are consistent with pure populations of very old stars with no evidence of younger stars. Most of the stars in giant elliptical galaxies are old,
Temi P. +2 more
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Triaxiality in elliptical galaxies
, 1980 A simple geometrical model of elliptical galaxies having shells with different axial ratios c/a, b/a has been produced to interpret three fundamental key-features of elliptical galaxies: (1) the distribution of the maximum flattening observed; (2) the ...
GALLETTA, GIUSEPPE, BENACCHIO L.
core
Near-Infrared Fundamental Plane of Elliptical Galaxies [PDF]
, 1995 We present results from a near-infrared K-band imaging survey of 59 elliptical galaxies in five nearby clusters. We measure photometric parameters for each galaxy using surface photometry and draw velocity dispersions from the literature.
Djorgovski, S. G. +2 more
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Scaling Relations of Early-Type Galaxies in MOND
GalaxiesWe investigate the shape and morphology of early-type galaxies (ETGs) within the framework of Modified Newtonian Dynamics (MOND). Building on our previous studies, which demonstrated that the monolithic collapse of primordial gas clouds in MOND produces ...
Robin Eappen, Pavel Kroupa
doaj +1 more source
Relativistic jets in narrow-line Seyfert 1 galaxies. New discoveries and open questions
EPJ Web of Conferences, 2013 Before the launch of the Fermi satellite only two classes of AGNs were known to produce relativistic jets and thus emit up to the γ-ray energy range: blazars and radio galaxies, both hosted in giant elliptical galaxies.
D’Ammando F. +4 more
doaj +1 more source
Numerical simulations of elliptical galaxies
, 2009 For the formation of elliptical galaxies, two scenarios, monolithic collapse vs. major merger, have been debated. We simulate the formation and chemodynamical evolution of 128 Es from the CDM initial fluctuations, using the GRAPE-SPH code that include ...
Chiaki Kobayashi
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Discovery of a Cluster of Elliptical Galaxies at Redshift 2.38
, 1997 The author was affiliated with University of Melbourne when the paper was ...
Francis, Paul +2 more
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Near-infrared photometry of bright elliptical galaxies
, 1990 High-quality visual-infrared color profiles have been determined for elliptical galaxies for the first time. Surface photometry in J and K is presented for 12 bright elliptical galaxies, and the results have been combined with CCD data in visual ...
Peletier, R. F. +2 more
core +1 more source