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A 330 MHz Survey for Pulsars and Supernova Remnants in M31

Published online by Cambridge University Press:  19 July 2016

Joseph D. Gelfand ,
T. Joseph ,
W. Lazio  and
Bryan M. Gaensler
Joseph D. Gelfand
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden St. MS-10, Cambridge, MA 02138, USA
T. Joseph
Affiliation:
Naval Research Laboratory Code 7213, 4555 Overlook Ave., SW Washington, DC 20375-5351, USA
W. Lazio
Affiliation:
Naval Research Laboratory Code 7213, 4555 Overlook Ave., SW Washington, DC 20375-5351, USA
Bryan M. Gaensler
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden St. MS-6, Cambridge, MA 02138, USA

Abstract

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In the radio band, supernova remnants (SNRs) and pulsars are best identified at low frequencies due to their steep spectrA. Motivated by this fact, we have carried out a deep 330-MHz observation of M31 using the VLA. Achieving a sensitivity of 0.6 mJy at 6″ resolution over the entire optical disk of M31, we identified 405 distinct radio sources. While most of these are unresolved background radio galaxies, we found five SNR candidates, three pulsar wind nebula (PWN) candidates, and three pulsar candidates in our source list. The properties of these sources are discussed.

Type
Part 2: Supernova Remnants
Information
Symposium - International Astronomical Union , Volume 218: Young Neutrons Stars and their Environments , 2004 , pp. 91 - 92
Copyright
Copyright © Astronomical Society of the Pacific 2004 

References

Berkhuijsen, E. M. 1986, A&A, 166, 257.Google Scholar
Case, G. L., & Bhattacharya, D. 1998, ApJ, 504, 761.Google Scholar
Green, D. A. 2004, A Catalogue of Galactic Supernova Remnants, available at http://www.mrao.cam.ac.uk/surveys/snrs.Google Scholar
Gordon, S. M., Duric, N., Kirshner, R. P., Goss, W. M., & Viallefond, F. 1999, ApJS, 120, 247.Google Scholar
Helfand, D. J., & Becker, R. H. 1987, ApJ, 314, 203.Google Scholar
Stanek, K. Z., & Garnavich, P. M. 1998, ApJ, 503, L131.Google Scholar
Supper, R., Hasinger, G., Lewin, W. H. G., Magnier, E. A., van Paradijs, J., Pietsch, W., Read, A. M., & Trümper, J. 2001, A&A, 373, 63.Google Scholar