Results 101 to 110 of about 2,330,942 (208)

The High Energy X-ray Probe (HEX-P): probing accretion onto stellar mass black holes

open access: yesFrontiers in Astronomy and Space Sciences
Accretion is a universal astrophysical process that plays a key role in cosmic history, from the epoch of reionization to galaxy and stellar formation and evolution. Accreting stellar-mass black holes in X-ray binaries are one of the best laboratories to
Riley M. T. Connors   +24 more
doaj   +1 more source

X-Ray Emission Signatures of Galactic Feedback in the Hot Circumgalactic Medium: Predictions from Cosmological Hydrodynamical Simulations

open access: yesThe Astrophysical Journal
Little is currently known about the physical properties of the hot circumgalactic medium (CGM) surrounding massive galaxies. Next-generation X-ray observatories will enable detailed studies of the hot CGM in emission.
Emily M. Silich   +8 more
doaj   +1 more source

Broad Observational Perspectives Achieved by the Accreting White Dwarf Sciences in the XMM-Newton and Chandra Eras

open access: yesUniverse
Accreting white dwarf binaries (AWDs) comprise cataclysmic variables (CVs), symbiotics, AM CVns, and other related systems that host a primary white dwarf (WD) accreting from a main sequence or evolved companion star.
Şölen Balman   +2 more
doaj   +1 more source

Properties of the Line-of-sight Velocity Field in the Hot and X-Ray-emitting Circumgalactic Medium of Nearby Simulated Disk Galaxies

open access: yesThe Astrophysical Journal
The hot, X-ray-emitting phase of the circumgalactic medium of massive galaxies is believed to be the reservoir of baryons from which gas flows onto the central galaxy and into which feedback from active galactic nuclei and stars inject mass, momentum ...
John A. ZuHone   +18 more
doaj   +1 more source

Fast X-Ray Variability from the Coronae of Supermassive Black Holes

open access: yesThe Astrophysical Journal Letters
We present the first systematic study of short-timescale X-ray variability in radio-quiet active galactic nuclei (AGN), utilizing archival Chandra observations of approximately 3000 broad-line AGN selected from the Sloan Digital Sky Survey and Dark ...
Xiurui Zhao   +6 more
doaj   +1 more source

X-ray selected starbursts in the Great Observatories Origins Deep Survey-North

open access: yes, 2007
A. Georgakakis   +3 more
semanticscholar   +1 more source

The faintest, extremely variable X-ray tidal disruption event from a supermassive black hole binary? [PDF]

open access: yesInnovation (Camb)
Huang M   +32 more
europepmc   +1 more source

A tidal disruption event from an intermediate-mass black hole revealed by comprehensive multi-wavelength observations. [PDF]

open access: yesNat Commun
Wang J   +14 more
europepmc   +1 more source

Ultrahigh-energy gamma-ray emission associated with black hole-jet systems. [PDF]

open access: yesNatl Sci Rev
Cao Z   +316 more
europepmc   +1 more source

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