Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Ford, K. E. S."'
Autor:
McKernan, B., Ford, K. E. S.
Merging black holes (BH) are expected to produce remnants with large dimensionless spin parameters ($a_{\rm spin} \sim 0.7$). However, gravitational wave (GW) observations with LIGO/Virgo suggest that merging BH are consistent with modestly positive
Externí odkaz:
http://arxiv.org/abs/2309.15213
Autor:
Saade, M. Lynne, Brightman, Murray, Stern, Daniel, Connor, Thomas, Djorgovski, S. G., D'Orazio, Daniel J., Ford, K. E. S., Graham, Matthew J., Haiman, Zoltan, Jun, Hyunsung D., Kammoun, Elias, Kraft, Ralph P., McKernan, Barry, Vikhlinin, Alexei, Walton, Dominic J.
We present analysis of NuSTAR X-ray observations of three AGN that were identified as candidate subparsec binary supermassive black hole (SMBH) systems in the Catalina Real-Time Transient Survey based on apparent periodicity in their optical light cu
Externí odkaz:
http://arxiv.org/abs/2304.06144
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
Externí odkaz:
http://arxiv.org/abs/2203.06187
Autor:
Bustillo, Juan Calderón, Leong, Samson H. W., Chandra, Koustav, McKernan, Barry, Ford, K. E. S.
We present an analysis that reconciles the gravitational-wave signal GW190521 observed by the Advanced LIGO and Advanced Virgo detectors with the electromagnetic flare ZTF19abanrhr observed by the Zwicky Transient Facility. We analyze GW190521 under
Externí odkaz:
http://arxiv.org/abs/2112.12481
Autor:
McKernan, B., Ford, K. E. S., Cantiello, M., Graham, M. J., Jermyn, A. S., Leigh, N. W. C., Ryu, T., Stern, D.
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:
http://arxiv.org/abs/2110.03741
Autor:
McKernan, B., Ford, K. E. S., Callister, T., Farr, W. M., O'Shaughnessy, R., Smith, R., Thrane, E., Vajpeyi, A.
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:
http://arxiv.org/abs/2107.07551
Autor:
Renzo, M., Callister, T., Chatziioannou, K., van Son, L. A. C., Mingarelli, C. M. F., Cantiello, M., Ford, K. E. S., McKernan, B., Ashton, G.
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:
http://arxiv.org/abs/2102.00078
Autor:
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., van Velzen, S., 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.
Publikováno v:
Phys. Rev. Lett. 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
Externí odkaz:
http://arxiv.org/abs/2006.14122
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:
http://arxiv.org/abs/2002.00046
Autor:
Saade, M. Lynne, Stern, Daniel, Brightman, Murray, Haiman, Zoltán, Djorgovski, S. G., D'Orazio, Daniel, Ford, K. E. S., Graham, Matthew J., Jun, Hyunsung D., Kraft, Ralph P., McKernan, Barry, Vikhlinin, Alexei, Walton, Dominic J.
Publikováno v:
2020, The Astrophysical Journal, Volume 900, Page 148
We present analysis of Chandra X-ray observations of seven quasars that were identified as candidate sub-parsec binary supermassive black hole (SMBH) systems in the Catalina Real-Time Transient Survey (CRTS) based on apparent periodicity in their opt
Externí odkaz:
http://arxiv.org/abs/2001.08870