Search for X-ray line emission from A0620--00

Journal Article · Sun Aug 15 04:00:00 EDT 1976 · Astrophys. J., Lett.; (United States)

DOI:https://doi.org/10.1086/182225· OSTI ID:7261820

Kestenbaum, H L; Cohen, G G; Long, K S; Novick, R; Silver, E H; Weisskopf, M C; Wolff, R S

Measurements of the X-ray spectrum (1.85--7 keV) of A0620--00 obtained on 1975 October 17 and 1976 January 1--9 with the graphite crystal spectrometer on OSO-8 show a smooth continuum with an absence of emission lines. Upper limits are given for line emission from Si and S ions and are used to establish that the source is not optically thin. The results support a dense plasma model. (AIP)

• Research Organization: Columbia Astrophysics Laboratory, Columbia University
• OSTI ID: 7261820
• Journal Information: Astrophys. J., Lett.; (United States), Journal Name: Astrophys. J., Lett.; (United States) Vol. 208:1; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COLLISIONS
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
ELECTROMAGNETIC RADIATION
ELECTRON COLLISIONS
IONIZING RADIATIONS
LINE BROADENING
NEUTRON STARS
PLASMA
RADIATIONS
SPECTRA
STARS
X RADIATION
X-RAY SPECTRA