Results 171 to 180 of about 139,946 (272)

Making the Invisible Visible: Magnetic Fields in Accretion Flows Revealed by X-Ray Polarization

open access: yesThe Astrophysical Journal
Large-scale, strong magnetic fields are often evoked in black hole accretion flows, for jet launching in the low/hard state and to circumvent the thermal instability in the high/soft state.
Samuel Barnier, Chris Done
doaj   +1 more source

Spectral Study of Very-high-energy Gamma Rays from SS 433 with HAWC

open access: yesThe Astrophysical Journal
Very-high-energy (0.1–100 TeV) gamma-ray emissions were observed in High-Altitude Water Cherenkov (HAWC) data from the lobes of the microquasar SS 433, making them the first set of astrophysical jets that were resolved at TeV energies.
R. Alfaro   +82 more
doaj   +1 more source

X-ray bursters and the X-ray sources of the galactic bulge [PDF]

open access: yes
Type 1 X-ray bursts, optical, infrared, and radio properties of the galactic bulge sources, are discussed. It was proven that these burst sources are neutron stars in low mass, close binary stellar systems.
Joss, P. C., Lewin, W. H. G.
core   +1 more source

Unraveling the Mysteries of KS 1947+300: Multiwavelength Observations in a Low-eccentricity Be/X-Ray Binary

open access: yesThe Astrophysical Journal
KS 1947+300, a Be/X-ray binary system, has been observed to experience both type I and type II X-ray outbursts despite its nearly circular orbit, which is atypical according to the viscous decretion disk model. To understand the variations in optical and
Wei Liu   +8 more
doaj   +1 more source

To Be or Not To Be: The Role of Rotation in Modeling Galactic Be X-Ray Binaries

open access: yesThe Astrophysical Journal
Be X-ray binaries (Be-XRBs) are one of the largest subclasses of high-mass X-ray binaries, comprised of a rapidly rotating Be star and neutron star companion in an eccentric orbit, intermittently accreting material from a decretion disk around the donor.
Kyle Akira Rocha   +13 more
doaj   +1 more source

A New Algorithm for Detecting X-Ray Shots in Cyg X-1

open access: yesThe Astrophysical Journal
The short-term X-ray variability of Cyg X-1 can be interpreted as a random occurrence of mini-flares known as the shots, whose physical nature is still unclear.
Jin Qin, Hua Feng, Lian Tao
doaj   +1 more source

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