Surveys of globular cluster and galactic plane X-ray sources

Technical Report · Sat Jan 01 04:00:00 EST 1983

OSTI ID:6575348

Hertz, P L

The capabilities of the Einstein X-ray Observatory, especially the arcsecond resolution of the High Resolution Imager and the sensitivity of the Imaging proportional Counter, were utilized to study galactic X-ray sources. Ten previously unidentified galactic bulge X-ray sources were observed with the HRI and located to Approximately 3 seconds (90% confidence radius). A diffuse infrared sources surrounding the burster GX354-0 ( MXB1728-34) was discovered in JHK photometry. It is identified as the most heavily obscured globular cluster yet found. X-ray observations of a single burst imply that the luminosity exceeded the Eddington limit or approximately 8 times. The other nine bulge sources do not lie in obscured globular clusters. No infrared counterparts were detected for these nine sources and the limits derived are consistent with these sources being low mass X-ray binaries similar to Sco X-1.

• Research Organization: Harvard Univ., Cambridge, MA (USA)
• OSTI ID: 6575348
• Report Number(s): N-84-14102
• 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
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
LUMINOSITY
MEASURING INSTRUMENTS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PROPORTIONAL COUNTERS
RADIATION DETECTORS
RADIATION SOURCES
STAR CLUSTERS