Results 71 to 80 of about 370,836 (359)
Triggered Starbursts in Galaxy Mergers [PDF]
Symposium - International Astronomical Union, 1999 A unified formation mechanism of nuclear starbursts is presented; all the nuclear starbursts are triggered by binary supermassive black holes made in the final phase of galaxy mergers. Minor mergers cause both nuclear starbursts and hot-spot nuclei while major mergers cause (ultra) luminous infrared galaxies. We discuss the case of Arp 220 in detail.
K. Wada +3 more
openaire +2 more sources
Massive Black Hole Binaries: Dynamical Evolution and Observational Signatures
Advances in Astronomy, 2012 The study of the dynamical evolution of massive black hole pairs in mergers is crucial in the context of a hierarchical galaxy formation scenario. The timescales for the formation and the coalescence of black hole binaries are still poorly constrained ...
M. Dotti, A. Sesana, R. Decarli
doaj +1 more source
The Open Journal of Astrophysics, 2023 Despite the importance of Active Galactic Nuclei (AGN) in galaxy evolution, the mechanisms that fuel AGN activity remain poorly understood. Theoretical models suggest that major mergers of galaxies contribute strongly to AGN fuelling, particularly at ...
Carolin Villforth
doaj +1 more source
The Formation of Giant Elliptical Galaxies and Their Globular Cluster Systems [PDF]
, 1998 The bimodal globular cluster (GC) metallicity distributions of many giant elliptical galaxies are often cited as evidence for the formation of such galaxies through mergers involving gas-rich spirals.
Cote, Patrick +2 more
core +2 more sources
Constraining astrophysical observables of galaxy and supermassive black hole binary mergers using pulsar timing arrays [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We present an analytic model to describe the supermassive black hole binary (SMBHB) merger rate in the Universe with astrophysical observables: galaxy stellar mass function, pair fraction, merger time-scale, and black hole–host galaxy relations.
Siyuan Chen, A. Sesana, C. Conselice
semanticscholar +1 more source
Formation of Globular Clusters in Galaxy Mergers [PDF]
Highlights of Astronomy, 2005 AbstractOur numerical simulations first demonstrate that the pressure of ISM in a major merger becomes so high (> 105 kB K cm-3) that GMCs in the merger can collapse to form globular clusters (GCs) within a few Myr. The star formation efficiency within a GMC in galaxy mergers can rise up from a few percent to ~ 80 percent, depending on the shapes ...
Kenji Bekki +3 more
openaire +3 more sources
The Origin of the Consistent Planetary Nebula Luminosity Function Bright-end Cutoff
The Astrophysical Journal, 2023 The [O iii ] 5007 Å line is typically the brightest line in planetary nebula (PN) spectra. Observations show that the brightest [O iii ] 5007 Å PN in a galaxy—the planetary nebula luminosity function (PNLF) bright-end cutoff—is surprisingly independent ...
Philippe Z. Yao, Eliot Quataert
doaj +1 more source
Growth and activity of black holes in galaxy mergers with varying mass ratios [PDF]
, 2014 We study supermassive black holes (BHs) in merging galaxies, using a suite of hydrodynamical simulations with very high spatial (~10 pc) and temporal (~1 Myr) resolution, where we vary the initial mass ratio, the orbital configuration, and the gas ...
Pedro R. Capelo +5 more
semanticscholar +1 more source
Elliptical galaxies from mergers of discs [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 21 pages, 22 figures, accepted for publication in MNRAS.
A. C. González-García +2 more
openaire +5 more sources
Molecular Oncology, EarlyView.TRIM24 and TRIM28 are androgen receptor (AR) coregulators which exhibit increased expression with cancer progression. Both TRIM24 and TRIM28 combine to influence the response of castrate‐resistant prostate cancer (CRPC) cells to AR inhibitors by mediating AR signalling, regulation of MYC and upregulating VEGF to promote angiogenesis. Castrate‐resistant
Damien A. Leach +8 more
wiley +1 more source