A Pulsar Survey of 18 Supernova Remnants
Abstract
We have performed a pulsar search of 18 known or probable supernova remnants with the Arecibo 305 m radio telescope at 430 and 1420 MHz. The remnants were selected to have angular sizes less than or of order a few telescope beam diameters (˜10' at 430 MHz and ˜3' at 1420 MHz). In some cases, larger remnants with centrally brightened cores of this scale were also included. The observations were sensitive to pulsars with periods ≳1 ms and flux densities as low as ˜0.2 mJy. The targets included two probable plerionic objects and several shell-type remnants with centrally brightened X-ray profiles. No new pulsars were discovered in the survey, and we discuss some of the selection effects that make the interpretation of pulsar surveys of supernova remnants problematic. Effects of high pulsar velocities, uncertain distances, and high remnant brightness temperatures make it difficult to exclude the presence of a pulsar in most remnants.
Additional Information
© 1996 American Astronomical Society. Provided by the NASA Astrophysics Data System. Received 1995 April 27; accepted 1995 August 18. This work would not have been possible without the use of the Caltech nCUBE/10 operated by the Caltech Concurrent Supercomputing Facility. This research was performed in part using the Intel Touchstone Delta System operated by Caltech on behalf of the Concurrent Supercomputing Consortium. Access to this facility was provided by Caltech. We thank the staff of Arecibo Observatory for help in performing the observations. The Arecibo Observatory is part of the National Astronomy and Ionosphere Center, which is operated by Cornell University under cooperative agreement with the National Science Foundation. This research was supported in part by NSF grant AST 90-20787. Basic research in precision pulsar astrophysics at the Naval Research Laboratory is supported by the Office of Naval Research. A portion of this work was performed while one of the authors (P. S. R.) held a National Research Council-NRL Research Associateship.Attached Files
Published - 1996-05.pdf
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Additional details
- Eprint ID
- 46485
- Resolver ID
- CaltechAUTHORS:20140624-144721635
- AST 90-20787
- NSF
- Office of Naval Research (ONR)
- National Research Council-NRL Research Associateship
- Created
-
2014-06-25Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory, Division of Geological and Planetary Sciences
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 1996-05