Photometric Observations of Supernova 2013cq Associated with GRB 130427A

Autor: Nathaniel R. Butler, Alexander Kutyrev, Alan M. Watson, William H. Lee, Antonino Cucchiara, Nissim Fraija, J. Jesús González, O. M. Littlejohns, Vicki Toy, L. Georgiev, Josh Bloom, Rosa L. Becerra, Ori D. Fox, Neil Gehrels, J. A. de Diego, Carlos Román-Zúñiga, Jason X. Prochaska, Enrico Ramirez-Ruiz, Michael G. Richer, Eleonora Troja, John Capone
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: NASA Astrophysics Data System
Popis: We observed the afterglow of GRB 130427A with the RATIR instrument on the 1.5-m Harold L. Johnson telescope of the Observatorio Astron\'omico Nacional on Sierra San Pedro M\'artir. Our homogenous $griZYJH$ photometry extends from the night of burst to three years later. We fit a model for the afterglow. There is a significant positive residual which matches the behavior of SN 1998bw in the $griZ$ filters; we suggest that this is a photometric signature of the supernova SN 2013cq associated with the GRB. The peak absolute magnitude of the supernova is $M_r=-18.43\pm0.11$.
Comment: 23 pages, 10 figures. Accepted in ApJ
Databáze: OpenAIRE