Measuring Stellar and Black Hole Masses of Tidal Disruption Events
نویسندگان
چکیده
منابع مشابه
Tidal Disruption of Stellar Objects by Hard Supermassive Black Hole Binaries
Supermassive black hole binaries (SMBHBs) are expected by the hierarchical galaxy formation model in ΛCDM cosmology. There is some evidence in the literature for SMBHBs in AGNs, but there are few observational constraints on the evolution of SMBHBs in inactive galaxies and gas-poor mergers. On the theoretical front, it is unclear how long is needed for a SMBHB in a typical galaxy to coalesce. I...
متن کاملStellar disruption events support the existence of the black hole event horizon
Many black hole (BH) candidates have been discovered in X-ray binaries and in the nuclei of galaxies. The prediction of Einstein’s general relativity is that BHs have an event horizon – a one-way membrane through which particles fall into the BH but cannot exit. However, except for the very few nearby supermassive BH candidates, our telescopes are unable to resolve and provide a direct proof of...
متن کاملEnhanced Tidal Disruption Rates from Massive Black Hole Binaries
“Hard” massive black hole (MBH) binaries embedded in steep stellar cusps can shrink via threebody slingshot interactions. We show that this process will inevitably be accompanied by a burst of stellar tidal disruptions, at a rate that can be several orders of magnitude larger than that appropriate for a single MBH. Our numerical scattering experiments reveal that: 1) a significant fraction of s...
متن کاملMeasuring the black hole masses of high redshift quasars
A new technique is presented for determining the black-hole masses of high-redshift quasars from optical spectroscopy. The new method utilizes the full-width half maximum (FWHM) of the low-ionization Mgii emission line and the correlation between broad-line region (BLR) radius and continuum luminosity at 3000Å. Using archival UV spectra it is found that the correlation between BLR radius and 30...
متن کاملStellar Tidal Processes Near Massive Black Holes
Close tidal interactions of stars with a central massive black hole (MBH) or with other stars in the high density cusp around it can affect a significant fraction of the stellar population within the MBH radius of influence. We consider three strong processes that have the potential of modifying stellar structure and evolution there. (1) Tidal spin-up by hyperbolic star-star encounters. (2) Tid...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2020
ISSN: 0004-637X,1538-4357
DOI: 10.3847/1538-4357/abbf4d