A5038797089- Gamma-ray bursts and supernovae
- Astrophysical Phenomena and Observations
- Pulsars and Gravitational Waves Research
- Cosmology and Gravitation Theories
- Astronomy and Astrophysical Research
- CCD and CMOS Imaging Sensors
- Dark Matter and Cosmic Phenomena
- Molecular spectroscopy and chirality
- Black Holes and Theoretical Physics
- Molecular Spectroscopy and Structure
- Stellar, planetary, and galactic studies
- Geophysics and Gravity Measurements
- Galaxies: Formation, Evolution, Phenomena
University of Hong Kong
2021-2022
Tidal disruption events (TDEs) are valuable probes of the demographics supermassive black holes as well dynamics and population stars in centers galaxies. In this Letter, we focus on studying how debris disk formation circularization processes can impact possibility observing prompt flares TDEs. First, investigate efficiency is determined by key parameters, namely, hole mass $M_{BH}$, stellar $m_\star$, orbital penetration parameter $\beta$ that quantifies close disrupted star would orbit...
We estimate the rate of tidal disruption events (TDEs) that will be detectable with future gravitational wave detectors as well most probable properties these and their possible electromagnetic counterpart. To this purpose we combine standard waves results detailed rates estimates. find \emph{Laser Interferometer Space Antenna} (LISA) should not detect any TDEs, unless black holes (BHs) are typically embedded by a young stellar population which, in situation, could lead up to few 10 during...
Tidal disruption events (TDEs) result from stars being gravitationally-scattered into low angular momentum orbits around massive black holes. We show that the short lifetimes of Population III at high redshifts could significantly suppress volumetric TDE rate because they are too short-lived to reach disruption-fated orbits. However, this suppression can be alleviated if captured dark matter (DM) within stellar interiors provides an additional energy source, thereby extending lifetimes. find...
Tidal disruption events (TDEs), apart from producing luminous electromagnetic (EM) flares, can generate potentially detectable gravitational wave (GW) burst signals by future space-borne GW detectors. In this Letter, we propose a methodology to constrain the Hubble constant $H_0$ incorporating TDE parameters measured EM observations (e.g., stellar mass, black hole (BH) mass and spin, other orbital parameters) into observed waveforms. We argue that an accurate knowledge of BH spin could help...