Results 271 to 280 of about 618,301 (285)

Extreme energy in a relaxed galaxy group indicates the bursty nature of AGN feedback

Eckert D, Gastaldello F, Lovisari L, McGee S, Pasini T, Brienza M, Kolokythas K, O'Sullivan E, Simionescu A, Sun M, Bourne M, Chen Y, Cui W, Ettori S, Finoguenov A, Gozaliasl G, Kale R, Mernier F, Oppenheimer B, Schellenberger G, Seppi R, Tempel E.   +21 more
europepmc   +1 more source

Spin-orbit-splitting-driven nonlinear Hall effect in NbIrTe₄. [PDF]

Nat Commun
Lee JE, Wang A, Chen S, Kwon M, Hwang J, Cho M, Son KH, Han DS, Choi JW, Kim YD, Mo SK, Petrovic C, Hwang C, Park SY, Jang C, Ryu H.   +15 more
europepmc   +1 more source

On the triaxiality of elliptical galaxies

The Astrophysical Journal, 1981
openaire   +2 more sources

Mathematical Modeling of Physical Reality: From Numbers to Fractals, Quantum Mechanics and the Standard Model. [PDF]

Entropy (Basel)
Kupczynski M.
europepmc   +1 more source

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Elliptical galaxies and bulges of disc galaxies: Summary of progress and outstanding issues

, 2015
Bulge components of disc galaxies are the high-density centers interior to their outer discs. Once thought to be equivalent to elliptical galaxies, their observed properties and formation histories turn out to be richer and more varied than those of ...
J. Kormendy
semanticscholar   +1 more source

Two ten-billion-solar-mass black holes at the centres of giant elliptical galaxies

Nature, 2011
Observational work conducted over the past few decades indicates that all massive galaxies have supermassive black holes at their centres. Although the luminosities and brightness fluctuations of quasars in the early Universe suggest that some were ...
N. McConnell, Chung-Pei Ma, K. Gebhardt, S. Wright, J. Murphy, T. Lauer, J. Graham, D. Richstone   +7 more
semanticscholar   +1 more source

Dynamics of Elliptical Galaxies

Science, 1993
Elliptical galaxies were once thought to be similar in their structure and dynamics to rotationally flattened bodies like stars. The discovery that elliptical galaxies rotate much more slowly than a fluid body with the same shape has led to a qualitative change in our understanding of the dynamics of these systems.
openaire   +3 more sources

AGN Feedback in Elliptical Galaxies: Numerical Simulations

, 2011
The importance of feedback (radiative and mechanical) from massive black holes at the centers of elliptical galaxies is not in doubt, given the well established relation among black hole mass and galaxy optical luminosity.
L. Ciotti, J. Ostriker, J. Ostriker
semanticscholar   +1 more source

Anatomy of elliptical galaxies

Nature, 2009
The family of elliptical galaxies is remarkable for the structural regularity of its members. Inspecting irregularities in this regularity could help in understanding how these galaxies form.
openaire   +3 more sources

On the shape of elliptical galaxies

Journal of Astrophysics and Astronomy, 1983
We propose a test for the existence of prolate elliptical galaxies based on the properties of the photometric parameters introduced in the Cordoba surface photometry.
V. M. Arreguine, J. L. Sérsic
openaire   +2 more sources