Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Ford, K. E Saavik"'
Autor:
Cook, Harrison E., McKernan, Barry, Ford, K. E. Saavik, Delfavero, Vera, Nathaniel, Kaila, Postiglione, Jake, Ray, Shawn, O'Shaughnessy, Richard
We use the Monte Carlo For AGN (active galactic nucleus) Channel Testing and Simulation (McFACTS, https://www.github.com/mcfacts/mcfacts) code to study the effect of AGN disk and nuclear star cluster parameters on predicted mass distributions for LIG
Externí odkaz:
http://arxiv.org/abs/2411.10590
Autor:
Delfavero, Vera, Ford, K. E. Saavik, McKernan, Barry, Cook, Harrison E., Nathaniel, Kaila, Postiglione, Jake, Ray, Shawn, O'Shaughnessy, Richard
The Active Galactic Nuclei (AGN) channel for the formation of binary black hole (BBH) mergers has been previously studied as a potential formation channel for the merging compact binaries observed by the LIGO/Virgo/KAGRA (LVK) scientific collaboratio
Externí odkaz:
http://arxiv.org/abs/2410.18815
Autor:
Fagin, Joshua, Chan, James Hung-Hsu, Best, Henry, O'Dowd, Matthew, Ford, K. E. Saavik, Graham, Matthew J., Park, Ji Won, Villar, V. Ashley
Quasars are bright active galactic nuclei powered by the accretion of matter around supermassive black holes at the center of galaxies. Their stochastic brightness variability depends on the physical properties of the accretion disk and black hole. T
Externí odkaz:
http://arxiv.org/abs/2410.18423
Autor:
McKernan, Barry, Ford, K. E. Saavik, Cook, Harry E., Delfavero, Vera, Nathaniel, Kaila, Postiglione, Jake, Ray, Shawn, O'Shaughnessy, Richard
Active galactic nuclei (AGN) are a promising source of the binary black hole (BBH) mergers observed in gravitational waves with LIGO-Virgo-Kagra (LVK). Constraining the AGN channel allows us to limit AGN parameter space (disk density, size, average l
Externí odkaz:
http://arxiv.org/abs/2410.16515
Autor:
Cabrera, Tomás, Palmese, Antonella, Hu, Lei, O'Connor, Brendan, Ford, K. E. Saavik, McKernan, Barry, Andreoni, Igor, Ahumada, Tomás, Amsellem, Ariel, Busmann, Malte, Clark, Peter, Coughlin, Michael W., Dadiani, Ekaterine, Diaz, Veronica, Graham, Matthew J., Gruen, Daniel, Kunnumkai, Keerthi, Postiglione, Jake, Sommer, Julian S., Valdes, Francisco
We carried out long-term monitoring of the LIGO/Virgo/KAGRA binary black hole (BBH) merger candidate S230922g in search of electromagnetic emission from the interaction of the merger remnant with an embedding active galactic nuclei (AGN) accretion di
Externí odkaz:
http://arxiv.org/abs/2407.10698
Autor:
Wang, Yihan, Graham, Matthew J., Ford, K. E. Saavik, McKernan, Barry, Ryu, Taeho, Stern, Daniel
The phenomenon of changing-look (CL) behavior in active galactic nuclei (AGN) is characterized by dramatic changes in luminosity and/or emission line profiles over relatively short periods, ranging from months to years. The origin of CL-AGNs remains
Externí odkaz:
http://arxiv.org/abs/2406.12096
Tidal Disruption Events (TDEs) are routinely observed in quiescent galaxies, as stars from the nuclear star cluster are scattered into the loss cone of the central supermassive black hole (SMBH). TDEs are also expected to occur in Active Galactic Nuc
Externí odkaz:
http://arxiv.org/abs/2310.00020
Autor:
Fagin, Joshua, Park, Ji Won, Best, Henry, Chan, James Hung-Hsu, Ford, K. E Saavik, Graham, Matthew J., Villar, V. Ashley, Ho, Shirley, O'Dowd, Matthew
Publikováno v:
The Astrophysical Journal, Volume 965, Number 2, April 2024
Quasars are bright and unobscured active galactic nuclei (AGN) thought to be powered by the accretion of matter around supermassive black holes at the centers of galaxies. The temporal variability of a quasar's brightness contains valuable informatio
Externí odkaz:
http://arxiv.org/abs/2304.04277
Autor:
Sivaramakrishnan, Anand, Tuthill, Peter, Lloyd, James P., Greenbaum, Alexandra Z., Thatte, Deepashri, Cooper, Rachel A., Vandal, Thomas, Kammerer, Jens, Sanchez-Bermudez, Joel, Pope, Benjamin J. S., Blakely, Dori, Albert, Loïc, Cook, Neil J., Johnstone, Doug, Martel, André R., Volk, Kevin, Soulain, Anthony, Artigau, Étienne, Lafrenière, David, Willott, Chris J., Parmentier, Sébastien, Ford, K. E. Saavik, McKernan, Barry, Vila, M. Begoña, Rowlands, Neil, Doyon, René, Desdoigts, Louis, Fullerton, Alexander W., De Furio, Matthew, Goudfrooij, Paul, Holfeltz, Sherie T., LaMassa, Stephanie, Maszkiewicz, Michael, Meyer, Michael R., Perrin, Marshall D., Pueyo, Laurent, Sahlmann, Johannes, Sohn, Sangmo Tony, Teixeira, Paula S.
The James Webb Space Telescope's Near Infrared Imager and Slitless Spectrograph (JWST-NIRISS) flies a 7-hole non-redundant mask (NRM), the first such interferometer in space, operating at 3-5 \micron~wavelengths, and a bright limit of $\simeq 4$ magn
Externí odkaz:
http://arxiv.org/abs/2210.17434
Autor:
Graham, Matthew J., McKernan, Barry, Ford, K. E. Saavik, Stern, Daniel, Djorgovski, S. G., Coughlin, Michael, Burdge, Kevin B., Bellm, Eric C., Helou, George, Mahabal, Ashish A., Masci, Frank J., Purdum, Josiah, Rosnet, Philippe, Rusholme, Ben
The accretion disks of active galactic nuclei (AGN) are promising locations for the merger of compact objects detected by gravitational wave (GW) observatories. Embedded within a baryon-rich, high density environment, mergers within AGN are the only
Externí odkaz:
http://arxiv.org/abs/2209.13004