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| Content Provider | Springer Nature Link |
|---|---|
| Author | MARTHI, V. R. CHENGALUR, J. N. GUPTA, Y. DEWANGAN, G. C. BHATTACHARYA, D. |
| Copyright Year | 2011 |
| Abstract | We describe the serendipitous discovery of a very steep-spectrum radio point source in low-frequency Giant Metrewave Radio Telescope (GMRT) images of the supernova remnant (SNR) G76.9+1.0. The steep spectrum, as well as the location of the point source near the centre of this SNR confirm that this indeed is the pulsar J2022+3842. Archival Chandra X-ray data shows a point source coincident with the radio point source. However, no pulsed radio emission was detected despite deep searches at 610 MHz and 1160 MHz – which can be understood to be due to temporal broadening of the pulses. Weak pulsed emission has indeed been seen at 2 GHz with the Green Bank Telescope (GBT), establishing the fact that scattering is responsible for its non-detection at low radio frequencies. We underline the usefulness of low-frequency radio imaging as a good technique to prospect for pulsar candidates. |
| Starting Page | 451 |
| Ending Page | 455 |
| Page Count | 5 |
| File Format | |
| ISSN | 02506335 |
| Journal | Journal of Astrophysics and Astronomy |
| Volume Number | 32 |
| Issue Number | 4 |
| e-ISSN | 09737758 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2012-01-08 |
| Publisher Institution | Indian Academy of Sciences |
| Publisher Place | India |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Supernova remnants pulsars radiation mechanisms Astronomy, Observations and Techniques Astrophysics and Astroparticles |
| Content Type | Text |
| Resource Type | Article |
| Subject | Astronomy and Astrophysics Space and Planetary Science |
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