Skip to main content Accessibility help

GRB 110715A: Multiwavelength study of the first gamma-ray burst observed with ALMA

  • R. Sánchez-Ramírez (a1), P. Hancock (a2), T. Murphy (a2), A. de Ugarte Postigo (a1) (a3), J. Gorosabel (a1) (a4) (a5), D.A. Kann (a6) (a7), C.C. Thöne (a1), A. Lundgren (a8) (a9), A. Kamble (a10), S.R. Oates (a11), J.P.U. Fynbo (a3), I. de Gregorio Monsalvo (a8) (a9), D. Garcia-Appadoo (a8) (a9), S. Martín (a8), N.P.M. Kuin (a11), J. Greiner (a7) and A.J. Castro-Tirado (a1)...


GRB 110715A had a bright afterglow that was obscured in the optical by a high Galactic extinction. We discovered the submillimeter counterpart with APEX and followed it in radio with ATCA for over 2 months. Additional submm observations were performed with ALMA as a test of the ToO procedures during commissioning, becoming the first GRB afterglow to be detected by the observatory. UV, optical and NIR observations were performed with Swift/UVOT and 2.2 m/GROND in La Silla and X-ray data were obtained by Swift/XRT. The dataset is complemented with spectroscopic data from the VLT/X-shooter spectrograph. The absorption features present in the intermediate resolution optical/nIR spectra reveal a redshift of 0.8224 and a host galaxy environment with low ionization. We fit in the host galaxy absorption features two velocity components separated by 30 km/s, implying a host galaxy with low dynamical activity.



Hide All
[1]de Ugarte Postigo, A., Lundgren, A., Mac-Auliffe, F., et al., 2011, GCN 12168
[2]de UgartePostigo, A., Lundgren, A., Martín, S., et al., 2012, A&A, 538, A44
[3]de Ugarte Postigo, A., Fynbo, J.P.U., Thoene, C.C., et al., 2012, A&A, 548, A11
[4]Evans, P.A., Beardmore, A.P., Page, K.L., et al., 2009, MNRAS, 397, 1177
[5]Hancock, P.J., Murphy, T., & Schmidt, B.P., 2011, GCN 12171
[6]Sonbas, E., Barthelmy, S.D., Baumgartner, W.H., et al., 2011, GCN 12158


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed