Sign on

SAO/NASA ADS Astronomy Abstract Service


· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (32) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (86)
· NED Objects (2)
· Reads History
·
· Translate This Page
Title:
Optical counterparts for X-ray sources in M31
Authors:
Crampton, D.; Cowley, A. P.; Hutchings, J. B.; Schade, D. J.; van Speybroeck, L. P.
Affiliation:
AA(Canada-France-Hawaii Telescope Corp., Kamuela, HI; Dominion Astrophysical Observatory, Victoria, British Columbia, Canada), AB(Canada-France-Hawaii Telescope Corp., Kamuela, HI; Dominion Astrophysical Observatory, Victoria, British Columbia, Canada), AC(Canada-France-Hawaii Telescope Corp., Kamuela, HI; Arizona State University, Tempe, AZ), AD(Dominion Astrophysical Observatory, Victoria, British Columbia, Canada), AE(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 284, Sept. 15, 1984, p. 663-669. NSF-supported research. (ApJ Homepage)
Publication Date:
09/1984
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
Andromeda Galaxy, Blue Stars, Globular Clusters, Radio Sources (Astronomy), Supernova Remnants, X Ray Sources, B Stars, Compact Galaxies, Magellanic Clouds, Milky Way Galaxy, O Stars, Optical Emission Spectroscopy
DOI:
10.1086/162448
Bibliographic Code:
1984ApJ...284..663C

Abstract

Einstein Observatory X-ray position (both IPC and HRI) for 117 sources around M31 have been examined with 1000 A/mm slitless spectral plates obtained at the prime focus of the Canada-France-Hawaii Telescope (CFHT). A variety of possible counterparts is found within the error circles of the source positions, including globular clusters, foreground stars, faint blue stars, and a compact galaxy. For about half of the sources, no candidate object sufficiently near the X-ray position was visible on the plates which reach to a B-mag of about -3.5. Crowding in the nucleus of M31 made it impossible to examine the source positions less than 2 to 3 arcmin from the center of the galaxy. This paper lists all sources with their suggested optical identifications and gives finding charts for some of the stars. A brief comparison is made among the X-ray sources in M31, the Magellanic Clouds, and the Galaxy.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences



More Article Retrieval Options

HELP for Article Retrieval


Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)


Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints