Results 21 to 30 of about 77,751 (271)
NICMOS Observations of Interaction Triggered Star Formation in the Luminous Infrared Galaxy NGC 6090 [PDF]
, 1999 High resolution, 1.1, 1.6, and 2.2 micron imaging of the luminous infrared galaxy NGC 6090 obtained with NICMOS of the Hubble Space Telescope are presented.
Dinshaw, N. +4 more
core +2 more sources
The Conference Blazars through Sharp Multi-Wavelength Eyes
Galaxies, 2016 Blazars are active, galactic nuclei with jets of magnetized, high-energy plasma that flow outward from the center of the host galaxy at near-light speeds.[...]
Alan P. Marscher +2 more
doaj +1 more source
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 +3 more
doaj +1 more source
The impact of stripped Nuclei on the Super-Massive Black Hole number density in the local Universe [PDF]
, 2018 The recent discovery of super-massive black holes (SMBHs) in the centers of high-mass ultra compact dwarf galaxies (UCDs) suggests that at least some UCDs are the stripped nuclear star clusters of lower mass galaxies.
Baumgardt, Holger +5 more
core +2 more sources
The Astrophysical Journal, 2023 Growing evidence in support of a connection between active galactic nuclei (AGN) activity and the ram pressure stripping (RPS) phenomenon has been found both observationally and theoretically in the past decades.
Giorgia Peluso +7 more
doaj +1 more source
The Astrophysical Journal, 2023 Active galactic nuclei (AGNs) are widely believed to be one of the promising acceleration sites of ultrahigh-energy cosmic rays (CRs). Essentially, AGNs are powered by the gravitational energy of matter falling into supermassive black holes. However, the
Xin-Yue Shi +3 more
doaj +1 more source
Shocked POststarbust Galaxy Survey I: Candidate Poststarbust Galaxies with Emission Line Ratios Consistent with Shocks [PDF]
, 2016 [Abridged] The Shocked POststarburst Galaxy Survey (SPOGS) aims to identify transforming galaxies, in which the nebular lines are excited via shocks instead of through star formation processes.
Alatalo, Katherine +8 more
core +3 more sources
Triggering active galactic nuclei in galaxy clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 We model the triggering of active galactic nuclei (AGN) in galaxy clusters using the semianalytic galaxy formation model SAGE. We prescribe triggering methods based on the ram pressure galaxies experience as they move throughout the intracluster medium, which is hypothesized to trigger star formation and AGN activity.
Madeline A Marshall +5 more
openaire +3 more sources
, 2014 We use the Millennium II cosmological simulation combined with the semi-analytic galaxy formation model of Guo et al. (2011) to predict the contribution of galactic nuclei formed by the tidal stripping of nucleated dwarf galaxies to globular cluster (GC)
Baumgardt, Holger +3 more
core +1 more source
Dynamical Hotness, Star Formation Quenching, and Growth of Supermassive Black Holes
The Astrophysical Journal, 2023 A stellar system is dynamically hot when its kinetic energy is dominated by random motion represented by the velocity dispersion σ _hot . We use MaNGA data to obtain the inner and outer dispersion of a galaxy, σ _in and σ _out , to characterize its ...
Hui Hong +10 more
doaj +1 more source