{
  "bibcode": "2019GCN.24901....1K",
  "body": "D. A. Kann (HETH/IAA-CSIC), A. de Ugarte Postigo (HETH/IAA-CSIC, \nDARK/NBI), L. Izzo, M. Blazek, C. C. Thoene (all HETH/IAA-CSIC), A. \nGuijarro, and S. Pedraz (both CAHA) report:\n\nWe observed the afterglow of the short-soft GRB 190627A (Sonbas et al. \nGCN 24888, Siegel et al. GCN 24889, Evans et al. GCN 24890, Pozanenko et \nal. GCN 24892, Leonini et al. GCN 24893, Morris et al. GCN 24894, \nLipunov et al. GCN 24895, Mao et al. GCN 24896, Barthelmy et al. GCN \n24899) with CAFOS at the 2.2 m telescope of the Calar Alto Observatory, \nin Almeria (Spain). We obtained imaging in g', r', i' and z' bands, as \nwell as a low resolution spectrum. Observations were obtained in \ninclement weather conditions (2\".5 seeing and low transparency because \nof Calima).\n\nThe imaging consisted of 5 x 60 s exposures each in the z' and i' bands, \nand 1 x 300 s each in r' and g' band. The optical counterpart is well \ndetected in each of the individual images. At a mean epoch 21:54:42 UT \n(10.603 hr after the burst,) the object had a magnitude of r'(AB) = \n18.33 +/- 0.04 mag as compared to field stars from the PanSTARRS \ncatalog.\n\nThe spectrum was obtained at a mean time of 11.675 hrs after trigger and \nconsisted of an exposure of 3 x 1800 s. We used the B-200 grism that \ncovers the range between 3500 and 8800 AA with a resolving power of R ~ \n400. The spectrum shows a clear continuum across the complete range, \nwith an average signal-to-noise ratio per dispersion element of 5.5. \nHowever, we are not able to match any of the marginal absorption \nfeatures with a particular redshift. We have made the reduced spectrum \npublicly available through GRBSpec [1].\n\nFurther observations are planned.\n\n[1] http://GRBSpec.iaa.es",
  "circularId": 24901,
  "createdOn": 1561747451000,
  "email": "kann@iaa.es",
  "subject": "GRB 190627A: Optical imaging and spectroscopy from Calar Alto",
  "submitter": "Alexander Kann at IAA-CSIC  <kann@iaa.es>",
  "eventId": "GRB 190627A"
}