Results 21 to 30 of about 46,211 (288)
Stellar black hole binary mergers in open clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 In this paper we study the evolution of a primordial black hole binary (BHB) in a sample of over 1500 direct-summation $N-$body simulations of small-and intermediate-size isolated star clusters as proxies of galactic open clusters. The BHBs have masses in the range of the first LIGO/Virgo detections.
Rastello, S +5 more
openaire +4 more sources
Physics Letters B, 2023 We propose using table-top-size ultra-stable optical cavities from state-of-the-art optical atomic clocks as bar gravitational wave detectors for frequencies higher than 2 kHz.
M. Narożnik, M. Bober, M. Zawada
doaj +1 more source
Deep Learning for Galaxy Mergers in the Galaxy Main Sequence [PDF]
, 2019 Starburst galaxies are often found to be the result of galaxy mergers. As a result, galaxy mergers are often believed to lie above the galaxy main sequence: the tight correlation between stellar mass and star formation rate.
Pearson, William J. +4 more
core +3 more sources
Stellar Populations in High-z Galaxy Mergers [PDF]
Symposium - International Astronomical Union, 1999 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-consistent manner.
Yasuhiro Shioya, Kenji Bekki
openaire +1 more source
Accurate Identification of Galaxy Mergers with Stellar Kinematics [PDF]
The Astrophysical Journal, 2021 Abstract To determine the importance of merging galaxies to galaxy evolution, it is necessary to design classification tools that can identify the different types and stages of merging galaxies. Previously, using GADGET-3/SUNRISE simulations of merging galaxies and linear discriminant analysis (LDA), we created an accurate merging galaxy
R. Nevin +11 more
openaire +2 more sources
Are stellar-mass binary black hole mergers isotropically distributed? [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT The Advanced LIGO and Advanced Virgo gravitational wave detectors have detected a population of binary black hole mergers in their first two observing runs. For each of these events, we have been able to associate a potential sky location region represented as a probability distribution on the sky.
Richard Stiskalek +2 more
openaire +2 more sources
Signature of Planetary Mergers on Stellar Spins [PDF]
The Astrophysical Journal, 2018 Abstract One of the predictions of high-eccentricity planetary migration is that many planets will end up plunging into their host stars. We investigate the consequence of planetary mergers on their stellar hosts’ spin period. Energy and angular momentum conservation indicate that planet consumption by a star will spin up the star.
Ahmed Qureshi +2 more
openaire +2 more sources
Two chemically similar stellar overdensities on opposite sides of the plane of the Galaxy [PDF]
, 2018 Our Galaxy is thought to have undergone an active evolutionary history dominated by star formation, the accretion of cold gas, and, in particular, mergers up to 10 gigayear ago.
A Helmi +74 more
core +3 more sources
Galaxy growth in the concordance $\Lambda$CDM cosmology
, 2007 We use galaxy and dark halo data from the public database for the Millennium Simulation to study the growth of galaxies in the De Lucia et al. (2006) model for galaxy formation.
Guo, Qi, White, Simon D. M.
core +2 more sources
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 +5 more
core +3 more sources