Results 51 to 60 of about 52,047 (205)

Merging massive black holes: the right place and the right time [PDF]

, 2017
The LIGO/Virgo detections of gravitational waves from merging black holes of $\simeq$ 30 solar mass suggest progenitor stars of low metallicity (Z/Z$_{\odot} \lesssim 0.3$).
Lamberts, Astrid
core   +3 more sources

Discovery and Multiwavelength Analysis of a New Dissociative Galaxy Cluster Merger: The Champagne Cluster

The Astrophysical Journal
We report the discovery of a new binary galaxy cluster merger, the Champagne Cluster (RM J130558.9+263048.4), using a detection method that identifies dynamically active clusters in the redMaPPer Sloan Digital Sky Survey DR8 photometric galaxy cluster ...
Faik Bouhrik, Rodrigo Stancioli, David Wittman   +2 more
doaj   +1 more source

Massive Black Hole Binaries from the TNG50-3 Simulation. II. Using Dual AGNs to Predict the Rate of Black Hole Mergers

The Astrophysical Journal, 2023
Dual active galaxy nuclei (dAGNs) trace the population of post-merger galaxies and are the precursors to massive black hole (MBH) mergers, an important source of gravitational waves that may be observed by the Laser Interferometer Space Antenna (LISA ...
Kunyang Li, Tamara Bogdanović, David R. Ballantyne, Matteo Bonetti   +3 more
doaj   +1 more source

Star Formation Properties in Barred Galaxies(SFB). I. Ultraviolet-to-Infrared Imaging and Spectroscopic Studies of NGC 7479

, 2011
Large-scale bars and minor mergers are important drivers for the secular evolution of galaxies. Based on ground-based optical images and spectra as well as ultraviolet data from the Galaxy Evolution Explorer and infrared data from the Spitzer Space ...
Aguerri, Alongi, Athanassoula, Athanassoula, Athanassoula, Barazza, Bell, Bressan, Calzetti, Calzetti, Calzetti, Chabrier, Chen Cao, Conselice, Conselice, Conselice, de Vaucouleurs, Elmegreen, Eskridge, Fagotto, Fagotto, Fazio, Fazio, Fisher, Fisher, Gadotti, Gadotti, Gadotti, Genzel, Gil de Paz, Helou, Higdon, Ho, Ho, Hong Wu, Hüttemeister, Jogee, Jogee, Kartaltepe, Kennicutt, Kormendy, Kormendy, Laine, Laine, Laine, Lee, Leitherer, Makishima, Marinova, Martin, Martin, Martin, Mazzuca, Meng, Moustakas, Muñoz-Mateos, Pahre, Regan, Reynaud, Rieke, Romano-Díaz, Sandage, Schade, Sellwood, Sellwood, Sheth, Sheth, Shumakova, Skrutskie, Strateva, Wang, Werner, Wu, Wu, Wu, Xian-Min Meng, Zaritsky, Zhi-Min Zhou, Zhu, Zhu, Zurita   +80 more
core   +1 more source

Starbursts in multiple galaxy mergers [PDF]

, 2000
We numerically investigate stellar and gaseous dynamical evolution of mergers between five identical late-type disk galaxies with the special emphasis on star formation history and chemical evolution of multiple galaxy mergers.
Athanassoula E., Awaki H., Barnes J., Boselli A., Fall S. M., Ishizawa T., Kenji Bekki, Navarro J. F., Schmidt M., Wielen R.   +9 more
core   +2 more sources

Stellar populations in gas-rich galaxy mergers I. Dependence on star formation history

, 1998
We investigate the nature of stellar populations of major galaxy mergers between late-type spirals considerably abundant in interstellar medium by performing numerical simulations designed to solve both the dynamical and chemical evolution in a self ...
Bekki, Kenji, Shioya, Yasuhiro
core   +1 more source

Counter-orbiting tidal debris as the origin of the MW DoS

EPJ Web of Conferences, 2012
The Milky Way satellite galaxies show a phase-space distribution that is not expected from the standard scenario of galaxy formation. This is a strong hint at them being of tidal origin, which would naturally explain their spacial distribution in a disc ...
Pawlowski M.S.
doaj   +1 more source

Rapid Formation of Supermassive Black Hole Binaries in Galaxy Mergers with Gas [PDF]

, 2007
Supermassive black holes (SMBHs) are a ubiquitous component of the nuclei of galaxies. It is normally assumed that, following the merger of two massive galaxies, a SMBH binary will form, shrink due to stellar or gas dynamical processes and ultimately ...
Genzel, J. Wadsley, Kormendy, L. Mayer, M. Colpi, P. Madau, S. Kazantzidis, T. Quinn   +7 more
core   +2 more sources

CGCG 292-057 - a radio galaxy with merger-modulated radio activity

, 2012
We announce the discovery of a unique combination of features in a radio source identified with the merger galaxy CGCG 292-057. The radio galaxy both exhibits a highly complex, X-like structure and shows signs of recurrent activity in the form of double ...
A. Kuźmicz, Andreasyan, Baars, Baldwin, Becker, Bessell, Brocksopp, Bruzual, Buttiglione, Capetti, Cattaneo, Cattaneo, Cheung, Cid, Cohen, Condon, D. Kozieł-Wierzbowska, Dennett-Thorpe, Evans, Fanaroff, G. Stachowski, Gopal-Krishna, Gopal-Krishna, Gregory, Guthrie, Hardcastle, Hardcastle, Healey, Heckman, Heckman, Heckman, Hodges-Kluck, Hodges-Kluck, Hota, Keel, Kewley, Laing, Lal, Lal, Leahy, Leahy, Liu, Liu, Liu, M. Jamrozy, Martel, Mateus, Merritt, Mihos, Murgia, Palimaka, Parma, Parma, Rengelink, S. Zola, Saikia, Saripalli, Schoenmakers, Shimasaku, Spergel, Springel, Stoughton, Strateva, Sánchez, Tremaine, Wilson, Worrall, York   +67 more
core   +1 more source

From Discs to Bulges: effect of mergers on the morphology of galaxies [PDF]

, 2015
We study the effect of mergers on the morphology of galaxies by means of the simulated merger tree approach first proposed by Moster et al. This method combines N-body cosmological simulations and semi-analytic techniques to extract realistic initial ...
Fontanot, Fabio, Kannan, Rahul, Karman, Wouter, Maccio', Andrea V., Moster, Benjamin P., Somerville, Rachel S.   +5 more
core   +3 more sources