Results 91 to 100 of about 2,107 (216)

Optical Appearance of Eccentric Tidal Disruption Events

open access: yesThe Astrophysical Journal Letters
Stars approaching supermassive black holes can be tidally disrupted. Despite being expected to emit X-rays, tidal disruption events (TDEs) have been largely observed in optical bands, which is poorly understood.
Fangyi (Fitz) Hu   +2 more
doaj   +1 more source

The Kick Velocity Distribution of Isolated Neutron Stars

open access: yesThe Astrophysical Journal Letters
Neutron stars (NSs) are thought to receive natal kicks at their formation in supernovae. In order to investigate the magnitude of these kicks, we analyze the proper motions and distance estimates—through either parallax or dispersion measures—of young ...
Paul Disberg, Ilya Mandel
doaj   +1 more source

The promises of gravitational-wave astronomy. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2018
Martin IW   +3 more
europepmc   +1 more source

Expansion of Accreting Main-sequence Stars during Rapid Mass Transfer

open access: yesThe Astrophysical Journal Letters
Accreting main-sequence stars expand significantly when the mass accretion timescale is much shorter than their thermal timescales. This occurs during mass transfer from an evolved giant star onto a main-sequence companion in a binary system and is an ...
Mike Y. M. Lau   +3 more
doaj   +1 more source

Acquisition Performance Analysis of Communication and Ranging Signals in Space-Based Gravitational Wave Detection

open access: yesTechnologies
Space-based gravitational wave detection relies on laser interferometry to measure picometer-level displacements over 105–106 km baselines. To integrate ranging and communication within the same optical link without degrading the primary scientific ...
Hongling Ling   +3 more
doaj   +1 more source

Choosing Suitable Noise Models for Nanohertz Gravitational-wave Astrophysics

open access: yesThe Astrophysical Journal
Accurately estimating the parameters of the nanohertz gravitational-wave background is essential for understanding its origin. The background is typically modeled with a power-law spectrum, parameterized with an amplitude A , which describes its ...
Valentina Di Marco   +4 more
doaj   +1 more source

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