NDLI: A study of 2-20 kev x-rays from the cygnus region

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A study of 2-20 kev x-rays from the cygnus region

Content Provider	NASA Technical Reports Server (NTRS)
Author	Bleach, R. D.
Copyright Year	1972
Description	Two rocket-borne proportional counters, each with 650 sq c, met area and 1.8 x 7.1 deg FWHM rectangular mechanical collimation, surveyed the Cygnus region in the 2 to 20 keV energy range on two occasions. X-ray spectral data gathered on 21 September 1970 from discrete sources in Cygnus are presented. The data from Cyg X-1, Cyg X-2, and Cyg X-3 have sufficient statistical significance to indicate mutually exclusive spectral forms for the three. Upper limits are presented for X-ray intensities above 2 keV for Cyg X-4 and Cyg X-5 (Cygnus loop). A search was made on 9 August 1971 for a diffuse component of X-rays 1.5 keV associated with an interarm region of the galaxy at galactic longitudes in the vicinity of 60 degrees. A statistically significant excess associated with a narrow disk component was detected. Several possible emission models are discussed, with the most likely candidate being a population of unresolvable low luminosity discrete sources.
File Size	4490438
Page Count	130
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19720018073
Archival Resource Key	ark:/13960/t1xd5nq17
Language	English
Publisher Date	1972-06-01
Access Restriction	Open
Subject Keyword	Space Radiation Cygnus Constellation Rocket-borne Instruments Mathematical Models X Ray Astronomy X Ray Spectroscopy Galactic Radiation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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