Results 21 to 30 of about 53,348 (269)

The size evolution of elliptical galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2014
11 pages, 8 figures, 1 table, submitted to ...
Xie, L., Guo, Q., Cooper, A. P., Frenk, C. S., Li, R., Gao, L.   +5 more
openaire   +3 more sources

A Preferential Growth Channel for Supermassive Black Holes in Elliptical Galaxies at z ≲ 2

The Astrophysical Journal, 2023
The assembly of stellar and supermassive black hole (SMBH) mass in elliptical galaxies since z ∼ 1 can help to diagnose the origins of locally observed correlations between SMBH mass and stellar mass.
Duncan Farrah, Sara Petty, Kevin S. Croker, Gregory Tarlé, Michael Zevin, Evanthia Hatziminaoglou, Francesco Shankar, Lingyu Wang, David L Clements, Andreas Efstathiou, Mark Lacy, Kurtis A. Nishimura, Jose Afonso, Chris Pearson, Lura K Pitchford   +14 more
doaj   +1 more source

Gravitational Lensing by Elliptical Galaxies [PDF]

Symposium - International Astronomical Union, 2005
The probability that high-redshift quasars are gravitationally-lensed by intervening galaxies increases rapidly with the cosmological constant, ΩΛ0 (whilst being only weakly dependent on the density parameter, Ωm0), and the low number of lenses observed implies that ΩΛ0 ≲ 0.7 (e.g. Kochanek 1996).
Mortlock, DJ, Webster, RL
openaire   +4 more sources

Elliptical galaxies: Rotationally distorted, after all [PDF]

Serbian Astronomical Journal, 2009
On the basis of earlier investigations on homeoidally striated Mac Laurin spheroids and Jacobi ellipsoids (Caimmi and Marmo 2005, Caimmi 2006a, 2007), different sequences of configurations are defined and represented in the ellipticity-rotation plane ...
Caimmi R.
doaj   +3 more sources

Multiple minor mergers: formation of elliptical galaxies and constraints for the growth of spiral disks [PDF]

, 2007
Multiple, sequential mergers are unavoidable in the hierarchical build-up picture of galaxies, in particular for the minor mergers that are frequent and highly likely to have occured several times for most present-day galaxies.
Athanassoula, Barnes, Barnes, Baugh, Bekki, Bender, Bendo, Binney, Birnboim, Birnboim, Borne, Bournaud, Bournaud, Bournaud, Bournaud, Bournaud, C. J. Jog, Conselice, Conselice, Cretton, Dekel, Dekel, Di Matteo, Duc, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Emsellem, F. Bournaud, F. Combes, Freeman, González-García, Harris, Jesseit, Jog, Jog, Kennicutt, Khochfar, Kormendy, Lima-Neto, Maller, Mamon, Naab, Naab, Naab, Naab, Naab, Quinn, Robertson, Schmidt, Springel, Taniguchi, Toomre, Trujillo, van den Bergh, van den Bergh, van Dokkum, Velazquez, Walker, Weil, Weil, Yu   +62 more
core   +3 more sources

Tracing Galaxy Evolution by Their Present-Day Luminosity Function

Open Astronomy, 2011
Galaxy luminosity functions are derived for different morphological types and various colors of galaxies, to trace the evolutionary effects which a priori should be different for void and supercluster galaxies.
Tempel E.
doaj   +1 more source

Clustercentric Distance or Local Density? It Depends on Galaxy Morphology

The Astrophysical Journal, 2023
Determining which between projected local density and distance from the cluster center plays a major role in regulating morphological fractions in clusters is a longstanding debate.
Benedetta Vulcani, Bianca M. Poggianti, Marco Gullieuszik, Alessia Moretti, Jacopo Fritz, Daniela Bettoni, Beatrice Facciolli, Giovanni Fasano, Alessandro Omizzolo   +8 more
doaj   +1 more source

Slowly Rotating Accretion Flow Around Supermassive Black Holes in Elliptical Galaxies: Case With Outflow

The Astrophysical Journal, 2023
Observational evidence and many numerical simulations show the existence of winds (i.e., uncollimated outflows) in the accretion systems of elliptical galaxy centers.
Razieh Ranjbar, Shahram Abbassi
doaj   +1 more source

Are disk galaxies the progenitors of giant ellipticals? [PDF]

, 2007
A popular formation scenario for giant elliptical galaxies proposes that they might have formed from binary mergers of disk galaxies. Difficulties with the scenario that emerged from earlier studies included providing the necessary stellar mass and ...
Barden, Bell, Bell, Bell, Bender, Bender, Bender, Bender, Binney, Brinchmann, Ciotti, Cox, Côté, Côté, Dasyra, Dasyra, Davies, de Jong, Dehnen, di Serego Alighieri, Ferrarese, Genzel, Gerhard, Gerhard, González-García, Hogg, Hogg, Hopkins, Hopkins, Hopkins, Hubble, Jeremiah P. Ostriker, Jesseit, Johansson, Khochfar, Khochfar, Kormendy, Kriek, Larson, Larson, Larson, Li, McIntosh, Naab, Naab, Naab, Naab, Nagamine, Nakamura, Negroponte, Ostriker, Rix, Robertson, Robertson, Rothberg, Rothberg, Springel, Surma, Thomas, Thorsten Naab, Toomre, Toomre, Treu, Trujillo, Trujillo, van der Wel, van Dokkum, van Dokkum, van Dokkum, White   +69 more
core   +4 more sources

Triaxial Orbit-based Dynamical Modeling of Galaxies with Supermassive Black Holes and an Application to Massive Elliptical Galaxy NGC 1453

The Astrophysical Journal, 2022
Most stellar-dynamical determinations of the masses of nearby supermassive black holes (SMBHs) have been obtained with the orbit superposition technique under the assumption of axisymmetry.
Matthew E. Quenneville, Emily R. Liepold, Chung-Pei Ma   +2 more
doaj   +1 more source