Results 191 to 200 of about 663,816 (320)

Dynamical Constraints on the Formation of Elliptical Galaxies [PDF]

open access: yesarXiv, 1995
Recent work on the construction of spherical, Axisymmetric and triaxial dynamical models for elliptical galaxies is reviewed briefly, including their role in providing evidence for dark halos and central black holes. The different orbital structures and shapes of low-mass and giant elliptical galaxies provide essential constraints on scenarios of ...
arxiv  

Core Formation by Binary Scouring and Gravitational Wave Recoil in Massive Elliptical Galaxies

open access: yesThe Astrophysical Journal
Scouring by supermassive black hole (SMBH) binaries is the most accepted mechanism for the formation of the cores seen in giant elliptical galaxies. However, an additional mechanism is required to explain the largest observed cores.
Nader Khonji   +3 more
doaj   +1 more source

Intrinsic Shapes of Elliptical Galaxies [PDF]

open access: yes, 1992
Tests for the intrinsic shape of the luminosity distribution in elliptical galaxies are discussed, with an emphasis on the uncertainties. Recent determinations of the ellipticity frequency function imply a paucity of nearly spherical galaxies, and may be inconsistent with the oblate hypothesis.
openaire   +3 more sources

The Central Kinematics and Black Hole Mass of 4C+37.11

open access: yesThe Astrophysical Journal
We report on integral field unit (IFU) measurements of the host of the radio source 4C+37.11. This massive elliptical contains the only resolved double compact nucleus at parsec-scale separation, likely a bound supermassive black hole binary (SMBHB).
Tirth Surti   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy