Optical follow up of the GRB 990123 sources from UPSO, Naini Tal
| dc.contributor.author | Sagar, R | |
| dc.contributor.author | Pandey, A K | |
| dc.contributor.author | Mohan, V | |
| dc.contributor.author | Yadav, R K S | |
| dc.contributor.author | Nilakshi | |
| dc.contributor.author | Bhattacharya, D | |
| dc.contributor.author | Castro-Tirado, A J | |
| dc.date.accessioned | 2006-06-09T06:46:29Z | |
| dc.date.available | 2006-06-09T06:46:29Z | |
| dc.date.issued | 1999 | |
| dc.description.abstract | The CCD magnitudes in Johnson $BV$ and Cousins R photometric passbands are determined for the optical transient of GRB 990123. These observations have been taken approximately 12 hours after trigger of the gamma-ray burst. BVR photometric light curves are obtained by combining the published data with the present measurements. They indicate that the flux decay constants in BV and R passbands are almost the same. Its value is $1.1\pm 0.06$. Such decay is quite consistent with the fireball models for the optical transient. | en |
| dc.format.extent | 393064 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.citation | Bulletin of the Astronomical Society of India, 1999, Vol.27, p3-7 | en |
| dc.identifier.issn | 0304-9523 | |
| dc.identifier.uri | http://hdl.handle.net/2289/1336 | |
| dc.language.iso | en | en |
| dc.publisher | The Astronomical Society of India | en |
| dc.relation.uri | http://adsabs.harvard.edu/cgi-bin/bib_query?1999BASI...27....3S | en |
| dc.rights | (1999) by the Astronomical Society of India. Scanned images provided by the NASA ADS Data System. | en |
| dc.title | Optical follow up of the GRB 990123 sources from UPSO, Naini Tal | en |
| dc.type | Article | en |