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http://hdl.handle.net/2289/1336| Title: | Optical follow up of the GRB 990123 sources from UPSO, Naini Tal |
| Authors: | Sagar, R. Pandey, A.K. Mohan, V. Yadav, R.K.S. Nilakshi Bhattacharya, D. Castro-Tirado, A.J. |
| Issue Date: | 1999 |
| Publisher: | The Astronomical Society of India |
| Citation: | Bulletin of the Astronomical Society of India, 1999, Vol.27, p3-7 |
| 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. |
| URI: | http://hdl.handle.net/2289/1336 |
| ISSN: | 0304-9523 |
| Alternative Location: | http://adsabs.harvard.edu/cgi-bin/bib_query?1999BASI...27....3S |
| Copyright: | (1999) by the Astronomical Society of India. Scanned images provided by the NASA ADS Data System. |
| Appears in Collections: | Research Papers (A&A) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 1999.BASI.27.P3.pdf | 5p. | 383.85 kB | Adobe PDF | View/Open |
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