The central point source in G76.9+1.0
2011
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. Earlier studies have shown that this SNR has a bipolar structure within a filled morphology. The steep spectrum, as well as the location of the point source near the centre of this SNR make it a very promising pulsar candidate. 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. We underline the usefulness of low-frequency radio imaging as a good technique to prospect for pulsar candidates.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
11
References
0
Citations
NaN
KQI