Late-time Observations of GRB 080319B: Jet Break, Host Galaxy, and Accompanying Supernova
MetadataShow full item record
The Swift-discovered GRB 080319B was by far the most distant source ever observed at naked-eye brightness,reaching a peak apparent magnitude of 5.3 at a redshift of z = 0.937. We present our late-time optical (HubbleSpace Telescope, Gemini, and Very Large Telescope) and X-ray (Chandra) observations, which confirm that anachromatic break occurred in the power-law afterglow light curve at~ 11 days post-burst. This most likely indicatesthat the gamma-ray burst (GRB) outflow was collimated, which for a uniform jet would imply a total energy inthe jet Ejet 1052 erg. Our observations also show a late-time excess of red light, which is well explained ifthe GRB was accompanied by a supernova (SN), similar to those seen in some other long-duration GRBs. Thelatest observations are dominated by light from the host and show that the GRB took place in a faint dwarf galaxy(r(AB) ˜ 27.0, rest frame MB ˜ -17.2). This galaxy is small even by the standards of other GRB hosts, whichis suggestive of a low-metallicity environment. Intriguingly, the properties of this extreme event—a small hostand bright SN—are entirely typical of the very low luminosity bursts such as GRB 980425 and GRB 060218.
Showing items related by title, author, creator and subject.
Keane, E.; Johnston, S.; Bhandari, S.; Barr, E.; Bhat, N.; Burgay, M.; Caleb, M.; Flynn, C.; Jameson, A.; Kramer, M.; Petroff, E.; Possenti, A.; Van Straten, W.; Bailes, M.; Burke-Spolaor, S.; Eatough, R.; Stappers, B.; Totani, T.; Honma, M.; Furusawa, H.; Hattori, T.; Morokuma, T.; Niino, Y.; Sugai, H.; Terai, T.; Tominaga, N.; Yamasaki, S.; Yasuda, N.; Allen, R.; Cooke, J.; Jencson, J.; Kasliwal, M.; Kaplan, D.; Tingay, Steven; Williams, A.; Wayth, Randall; Chandra, P.; Perrodin, D.; Berezina, M.; Mickaliger, M.; Bassa, C. (2016)In recent years, millisecond-duration radio signals originating in distant galaxies appear to have been discovered in the so-called fast radio bursts. These signals are dispersed according to a precise physical law and ...
Seymour, Nick; Altieri, B.; De Breuck, C.; Barthel, P.; Coia, D.; Conversi, L.; Dannerbauer, H.; Dey, A.; Dickinson, M.; Drouart, G.; Galametz, A.; Greve, T.; Haas, M.; Hatch, N.; Ibar, E.; Ivison, R.; Jarvis, M.; Kovács, A.; Kurk, J.; Lehnert, M.; Miley, G.; Nesvadba, N.; Rawlings, J.; Rettura, A.; Röttgering, H.; Rocca-Volmerange, B.; Sánchez-Portal, M.; Santos, J.; Stern, D.; Stevens, J.; Valtchanov, I.; Vernet, J.; Wylezalek, D. (2012)We present a detailed study of the infrared spectral energy distribution of the high-redshift radio galaxy MRC1138-26 at z = 2.156, also known as the Spiderweb Galaxy. By combining photometry from Spitzer, Herschel, and ...
Thöne, C.; Wiersema, K.; Ledoux, C.; Starling, R.; de Ugarte Postigo, A.; Levan, A.; Fynbo, J.; Curran, Peter; Gorosabel, J.; van der Horst, A.; Llorente, A.; Rol, E.; Tanvir, N.; Vreeswijk, P.; Wijers, R.; Kewley, L. (2008)Context. GRB afterglow spectra are sensitive probes of interstellar matter along the line-of-sight in their host galaxies, as well as inintervening galaxies. The rapid fading of GRBs makes it very difficult to obtain ...