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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1336
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dc.contributor.authorSagar, R.-
dc.contributor.authorPandey, A.K.-
dc.contributor.authorMohan, V.-
dc.contributor.authorYadav, R.K.S.-
dc.contributor.authorNilakshi-
dc.contributor.authorBhattacharya, D.-
dc.contributor.authorCastro-Tirado, A.J.-
dc.date.accessioned2006-06-09T06:46:29Z-
dc.date.available2006-06-09T06:46:29Z-
dc.date.issued1999-
dc.identifier.citationBulletin of the Astronomical Society of India, 1999, Vol.27, p3-7en
dc.identifier.issn0304-9523-
dc.identifier.urihttp://hdl.handle.net/2289/1336-
dc.description.abstractThe 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.extent393064 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherThe Astronomical Society of Indiaen
dc.relation.urihttp://adsabs.harvard.edu/cgi-bin/bib_query?1999BASI...27....3Sen
dc.rights(1999) by the Astronomical Society of India. Scanned images provided by the NASA ADS Data System.en
dc.titleOptical follow up of the GRB 990123 sources from UPSO, Naini Talen
dc.typeArticleen
Appears in Collections:Research Papers (A&A)

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