Results 1 to 10 of about 974 (262)
The Astrophysical Journal, 2023 The formation histories of compact binary mergers, especially stellar-mass binary black hole mergers, have recently come under increased scrutiny and revision.
Monica Gallegos-Garcia +2 more
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Possible orbits of a satellite galaxy for shell formation in galaxy merger events [PDF]
Serbian Astronomical JournalWe investigated formation of stellar shells in mergers between the host spiral galaxy and its satellite galaxy in different scenarios. Results of previous works showed that stellar shells are formed in very radial mergers. We run N-body simulations for 4
Milošević S.
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Impact of Galaxy Mergers on Stellar Population Profiles of Early-type Galaxies
The Astrophysical Journal, 2023 We study the impact of galaxy mergers on stellar population profiles/gradients of early-type galaxies (ETGs) using ETGs at z < 0.055 in the Stripe 82 region of the Sloan Digital Sky Survey and MaNGA integral field unit spectroscopic data.
Yongmin Yoon, Jongwan Ko, Jae-Woo Kim
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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
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The Astronomical JournalIntermediate-mass black holes (IMBHs) are believed to be the missing link between the supermassive black holes (BHs) found at the centers of massive galaxies and BHs formed through stellar core collapse. One of the proposed mechanisms for their formation
Rujuta A. Purohit +4 more
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Demographics of Hierarchical Black Hole Mergers in Dense Star Clusters
The Astrophysical Journal, 2023 With about one hundred mergers of binary black holes (BBHs) detected via gravitational waves by the LIGO-Virgo-KAGRA (LVK) Collaboration, our understanding of the darkest objects in the universe has taken unparalleled steps forward.
Giacomo Fragione, Frederic A. Rasio
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Dynamics of Star Cluster Formation: Mergers in Gas-rich Environments
The Astrophysical JournalWe perform high-resolution simulations of forming star clusters as they merge inside giant molecular clouds (GMCs) using hydrodynamics coupled to N -body dynamics to simultaneously model both the gas and stars.
Jeremy Karam, Alison Sills
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The Astrophysical Journal Letters, 2023 Minor mergers are thought to drive the structural evolution of massive quiescent galaxies; however, existing Hubble Space Telescope (HST) imaging is primarily sensitive to stellar mass ratios ≳1:10.
Katherine A. Suess +19 more
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The Astrophysical JournalSecure methods for identifying the host galaxies of individual massive black hole (MBH) binaries and mergers detected by gravitational-wave experiments such as the Laser Interferometer Space Antenna and pulsar timing arrays are currently lacking, but ...
Jaeden Bardati +4 more
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The Open Journal of AstrophysicsGalaxy mergers are known to trigger bursts of central star formation, which should therefore lead to stellar mass growth in their inner regions. However, observational measurements of this `burst mass fraction' are scant.
Sara L. Ellison, Leonardo Ferreira
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