Zobrazeno 1 - 10
of 24
pro vyhledávání: '"K. E. S. Ford"'
Autor:
M. Lynne Saade, Murray Brightman, Daniel Stern, Thomas Connor, S. G. Djorgovski, Daniel J. D’Orazio, K. E. S. Ford, Matthew J. Graham, Zoltán Haiman, Hyunsung D. Jun, Elias Kammoun, Ralph P. Kraft, Barry McKernan, Alexei Vikhlinin, Dominic J. Walton
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 104 (2024)
We present an analysis of NuSTAR X-ray observations of three active galactic nuclei (AGN) that were identified as candidate subparsec binary supermassive black hole (SMBH) systems in the Catalina Real-Time Transient Survey based on apparent periodici
Externí odkaz:
https://doaj.org/article/584e442a17d949f8b62508e773cb6497
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 494:1203-1216
Accretion disks around supermassive black holes are promising sites for stellar mass black hole mergers detectable with LIGO. Here we present the results of Monte-Carlo simulations of black hole mergers within 1-d AGN disk models. For the spin distri
Autor:
Jussi Harmanen, Łukasz Wyrzykowski, Paul C. Hewett, J. E. Pringle, Peter G. Jonker, Thomas Wevers, Chris Nixon, Z. Kostrzewa-Rutkowska, Giacomo Cannizzaro, Francesca Onori, Seppo Mattila, Erkki Kankare, Morgan Fraser, Barry McKernan, K. E. S. Ford
Publikováno v:
BASE-Bielefeld Academic Search Engine
Monthly Notices of the Royal Astronomical Society, 493, 1, pp. 477-495
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 493(1), 477-495
Monthly Notices of the Royal Astronomical Society, 493, 477-495
Monthly Notices of the Royal Astronomical Society, 493, 1, pp. 477-495
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 493(1), 477-495
Monthly Notices of the Royal Astronomical Society, 493, 477-495
We present the results of a multi-wavelength follow up campaign for the luminous nuclear transient Gaia16aax, which was first identified in January 2016. The transient is spatially consistent with the nucleus of an active galaxy at z=0.25, hosting a
Autor:
L. A. C. van Son, K. Chatziioannou, Mathieu Renzo, B. McKernan, Thomas Callister, K. E. S. Ford, Matteo Cantiello, G. Ashton, Chiara M. F. Mingarelli
Understanding common envelope (CE) evolution is an outstanding problem in binary evolution. Although the CE phase is not driven by gravitational-wave (GW) emission, the in-spiraling binary emits GWs that passively trace the CE dynamics. Detecting thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b67bf2d56a49abe08a1a6f96ee238f0
https://resolver.caltech.edu/CaltechAUTHORS:20211004-232814510
https://resolver.caltech.edu/CaltechAUTHORS:20211004-232814510
As active galactic nuclei (AGN) `turn on', some stars end up embedded in accretion disks around supermassive black holes (SMBHs) on retrograde orbits. Such stars experience strong headwinds, aerodynamic drag, ablation and orbital evolution on short t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32c698318db2ee02664bae9926810575
Observations by LIGO--Virgo of binary black hole mergers suggest a possible anti-correlation between black hole mass ratio ($q=m_{2}/m_{1}$) and the effective inspiral spin parameter $\chi_{\rm eff}$, the mass-weighted spin projection onto the binary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36a2c43fab679e3b04f8e65c112fc2a2
Publikováno v:
The Astrophysical Journal. 929:133
Stars are likely embedded in the gas disks of Active Galactic Nuclei (AGN). Theoretical models predict that in the inner regions of the disk these stars accrete rapidly, with fresh gas replenishing hydrogen in their cores faster than it is burned int
Autor:
Dmitry A. Duev, Andrew J. Drake, T. A. Prince, Ashish Mahabal, Matthew J. Graham, Justin Belecki, D. Stern, Maayane T. Soumagnac, George Helou, S. G. Djorgovski, Nicholas P. Ross, Kevin B. Burdge, Virginia Cunningham, Barry McKernan, K. E. S. Ford, Roger Smith, S. B. Cenko, S. van Velzen, Eric C. Bellm, Michael W. Coughlin, B. Rusholme, Shrinivas R. Kulkarni, Hector Rodriguez, Frank J. Masci, Daniel J. Reiley, Mansi M. Kasliwal, Rick Burruss
Publikováno v:
Graham, M J, Ford, K E S, McKernan, B, Ross, N P, Stern, D, Burdge, K, Coughlin, M, Djorgovski, S G, Drake, A J, Duev, D, Kasliwal, M, Mahabal, A A, Velzen, S V, Belicki, J, Bellm, E C, Burruss, R, Cenko, S B, Cunningham, V, Helou, G, Kulkarni, S R, Masci, F J, Prince, T, Reiley, D, Rodriguez, H, Rusholme, B, Smith, R M & Soumagnac, M T 2020, ' Candidate Electromagnetic Counterpart to the Binary Black Hole Merger Gravitational Wave Event S190521g ', Physical Review Letters, vol. 124, no. 25, 251102 . https://doi.org/10.1103/PhysRevLett.124.251102
We report the first plausible optical electromagnetic (EM) counterpart to a (candidate) binary black hole (BBH) merger. Detected by the Zwicky Transient Facility (ZTF), the EM flare is consistent with expectations for a kicked BBH merger in the accre
Advanced LIGO \& Advanced Virgo are detecting a large number of binary stellar origin black hole (BH) mergers. A promising channel for accelerated BH merger lies in active galactic nucleus (AGN) disks of gas around super-masssive black holes. Here we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61b04499eead0d985ad947d1fd974fd8
http://arxiv.org/abs/2002.00046
http://arxiv.org/abs/2002.00046
Autor:
V. Gayathri, Bence Kocsis, Yang Yang, Z. Márka, Imre Bartos, S. Klimenko, S. Márka, Barry McKernan, K. E. S. Ford, Zoltan Haiman, Richard O'Shaughnessy
Publikováno v:
Physical Review Letters
The origins of the stellar-mass black hole mergers discovered by LIGO/Virgo are still unknown. Here we show that, if migration traps develop in the \add{accretion} disks of Active Galactic Nuclei (AGNs) and promote the mergers of their captive black