Results 131 to 140 of about 9,171,233 (161)

Molecular tracers of radiative feedback in Orion (OMC-1) Widespread CH<sup>+</sup> (<i>J</i> = 1-0), CO (10-9), HCN (6-5), and HCO<sup>+</sup> (6-5) emission. [PDF]

open access: yesAstron Astrophys, 2019
Goicoechea JR   +6 more
europepmc   +1 more source

Interstellar H(3)(+). [PDF]

open access: yesProc Natl Acad Sci U S A, 2006
Oka T.
europepmc   +1 more source

Optical models for ultraluminous X-ray sources

open access: yes, 2008
We investigate the evolution of the properties of model populations of ultraluminous X-ray sources (ULXs) consisting of a black-hole accretor in a binary with a donor star. We have computed models corresponding to two different. populations of black-hole
Podsiadlowski, P   +4 more
core  

Active galactic nuclei. [PDF]

open access: yesProc Natl Acad Sci U S A, 1999
Fabian AC.
europepmc   +1 more source

Ultraluminous X-Ray Sources [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2017
We review observations of ultraluminous X-ray sources (ULXs). X-ray spectroscopic and timing studies of ULXs suggest a new accretion state distinct from those seen in Galactic stellar-mass black hole binaries. The detection of coherent pulsations indicates the presence of neutron-star accretors in three ULXs and therefore apparently super-Eddington ...
Hua Feng   +2 more
exaly   +7 more sources

Ultraluminous X-ray sources [PDF]

open access: yesNew Astronomy Reviews, 2023
A preprint as close as possible to the open access article at: https://www.sciencedirect.com/science/article/pii/S1387647322000306?via ...
Andrew King, Jean-Pierre Lasota
exaly   +6 more sources

Ultraluminous X-Ray Sources in External Galaxies

open access: yesAstrophysical Journal, 2001
We investigate models for the class of ultraluminous nonnuclear X-ray sources (i.e., ultraluminous compact X-ray sources [ULXs]) seen in a number of galaxies and probably associated with star-forming regions. Models in which the X-ray emission is assumed
Martin Elvis   +2 more
exaly   +9 more sources

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