{
  "bibcode": "1999GCN...249....1H",
  "body": "GRB 990123 NOT Spectrum Update\n\nJ. Hjorth (Copenhagen), M. I. Andersen (NOT), H. Pedersen (Copenhagen), \nM. R. Zapatero-Osorio (IAC), E. Perez (IAA) and \nA. J. Castro Tirado (LAEFF, IAA) report:\n\n\"We have conducted an improved analysis of the NOT spectra reported in \nGCN #219. We detect several absorption lines in addition to the ones found \nin the preliminary analysis, including Al III (185.5 and 186.3 nm). The \nsuggested assignment of two significant absorption lines with Zn II (202.6 \nand 206.3 nm) is uncertain. The resulting updated redshift is 1.598 +- 0.001. \nThe detection of an emission line associated with a system at z = 0.286 is not \nconfirmed. This considerably reduces the significance of the proposed line \nsystem at z = 0.286. The significance of the line system at z = 0.21 is \nunchanged and its reality remains uncertain. These findings are consistent \nwith the Keck results (IAUC #7096; GCN #223; GCN #235). The orientation of the \nslit during the observations was along the parallactic angle (roughly E-W) and \ncovered the galaxy ~10\" to the W of GRB 990123. The redshift of this galaxy is \n0.278 +- 0.001 based on Ca II K and H (393.3 nm and 396.9 nm), G band \n(400.3 nm) and Mgb (517.4 nm).\"",
  "circularId": 249,
  "createdOn": 918081975000,
  "email": "jens@astro.ku.dk",
  "subject": "GRB 990123 NOT Spectrum Update",
  "submitter": "Jens Hjorth at U.Copenhagen  <jens@astro.ku.dk>",
  "eventId": "GRB 990123"
}