Latent Stochastic Differential Equations for Modeling Quasar Variability and Inferring Black Hole Properties

Autor: Joshua Fagin, Ji Won Park, Henry Best, James H. H. Chan, K. E. Saavik Ford, Matthew J. Graham, V. Ashley Villar, Shirley Ho, Matthew O’Dowd

Publikováno v: The Astrophysical Journal, Vol 965, Iss 2, p 104 (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 informat

Externí odkaz: https://doaj.org/article/d08cce76401f44abb5c576d3871c81f3

Aligning Retrograde Nuclear Cluster Orbits with an Active Galactic Nucleus Accretion Disc

Autor: Syeda S Nasim, Gaia Fabj, Freddy Caban, Amy Secunda, K E Saavik Ford, Barry McKernan, Jillian M Bellovary, Nathan W C Leigh, Wladimir Lyra

Publikováno v: Monthly Notices of the Royal Astronomical Society. 522:5393-5401

Stars and stellar remnants orbiting a supermassive black hole (SMBH) can interact with an active galactic nucleus (AGN) disc. Over time, prograde orbiters (inclination $ii_{\rm ret}$ sBH decay towards embedded retrograde orbits $(i \to 180^{\circ})$.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49265ee6ad6e19234282a2c40ad7c9ba
https://doi.org/10.1093/mnras/stad1295

Aligning nuclear cluster orbits with an active galactic nucleus accretion disc

Autor: Syeda S. Nasim, Freddy Caban, Barry McKernan, K. E. Saavik Ford, Jillian Bellovary, Gaia Fabj

Publikováno v: Monthly Notices of the Royal Astronomical Society. 499:2608-2616

Active galactic nuclei (AGN) are powered by the accretion of disks of gas onto supermassive black holes (SMBHs). Stars and stellar remnants orbiting the SMBH in the nuclear star cluster (NSC) will interact with the AGN disk. Orbiters plunging through

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b100600b8d7d4a65b3586190cf3dbeae
https://doi.org/10.1093/mnras/staa3004

LIGO tells us LINERs are not optically thick RIAFs

Autor: Barry McKernan, K. E. Saavik Ford

Publikováno v: Monthly Notices of the Royal Astronomical Society: Letters. 490:L42-L46

Low ionization emission line regions (LINERs) are a heterogeneous collection of up to $1/3$ of galactic nuclei in the local Universe. It is unclear whether LINERs are simply the result of low accretion rates onto supermassive black holes or whether t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::041d1cea82b73327992c265a4aa3809a
https://doi.org/10.1093/mnrasl/slz116

The missing link in gravitational-wave astronomy: A summary of discoveries waiting in the decihertz range

Autor: Barry McKernan, Igor Pikovski, Kaze Wong, Xian Chen, Jose María Ezquiaga, J. Baird, Alberto Sesana, Shimon Kolkowitz, Christopher P. L. Berry, Lijing Shao, Daniela D. Doneva, K. E. Saavik Ford, Guido Mueller, Germano Nardini, Katelyn Breivik, Michael L. Katz, Pau Amaro-Seoane, Tessa Baker, Emanuele Berti, Niels Warburton, Surjeet Rajendran, Michael Zevin, Pierre Auclair, Helvi Witek, Chiara Caprini, Karan Jani, Manuel Arca Sedda, Nicola Tamanini

Publikováno v: Experimental Astronomy
Experimental Astronomy, springer Link, 2021, 51 (3), pp.1427-1440. ⟨10.1007/s10686-021-09713-z⟩
1427–1440
Experimental astronomy
Exper.Astron.
Exper.Astron., 2021, 51 (3), pp.1427-1440. ⟨10.1007/s10686-021-09713-z⟩

Since 2015 the gravitational-wave observations of LIGO and Virgo have transformed our understanding of compact-object binaries. In the years to come, ground-based gravitational-wave observatories such as LIGO, Virgo, and their successors will increas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0655e19af194c837fe159b465ea8197c
http://hdl.handle.net/20.500.12278/32047