Late-time Observations of GRB 080319B: Jet Break, Host Galaxy, and Accompanying Supernova
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,...
| Main Authors: | , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Institute of Physics Publishing, Inc.
2010
|
| Subjects: | |
| Online Access: | http://iopscience.iop.org/0004-637X/725/1/625/pdf/0004-637X_725_1_625.pdf http://hdl.handle.net/20.500.11937/27456 |
| _version_ | 1848752268889817088 |
|---|---|
| author | Tanvir, N. Rol, E. Levan, A. Svensson, K. Fruchter, A. Granot, J. O’Brien, P. Wiersema, K. Starling, R. Jakobsson, P. Fynbo, J. Hjorth, J. Curran, Peter van der Horst, A. Kouveliotou, C. Racusin, J. Burrows, D. Genet, F. |
| author_facet | Tanvir, N. Rol, E. Levan, A. Svensson, K. Fruchter, A. Granot, J. O’Brien, P. Wiersema, K. Starling, R. Jakobsson, P. Fynbo, J. Hjorth, J. Curran, Peter van der Horst, A. Kouveliotou, C. Racusin, J. Burrows, D. Genet, F. |
| author_sort | Tanvir, N. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T08:05:56Z |
| format | Journal Article |
| id | curtin-20.500.11937-27456 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:05:56Z |
| publishDate | 2010 |
| publisher | Institute of Physics Publishing, Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-274562017-02-28T01:47:10Z Late-time Observations of GRB 080319B: Jet Break, Host Galaxy, and Accompanying Supernova Tanvir, N. Rol, E. Levan, A. Svensson, K. Fruchter, A. Granot, J. O’Brien, P. Wiersema, K. Starling, R. Jakobsson, P. Fynbo, J. Hjorth, J. Curran, Peter van der Horst, A. Kouveliotou, C. Racusin, J. Burrows, D. Genet, F. galaxies: high-redshift gamma-ray burst: individual (GRB 080319B) supernovae: individual - Online-only material: color figures 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. 2010 Journal Article http://hdl.handle.net/20.500.11937/27456 http://iopscience.iop.org/0004-637X/725/1/625/pdf/0004-637X_725_1_625.pdf Institute of Physics Publishing, Inc. restricted |
| spellingShingle | galaxies: high-redshift gamma-ray burst: individual (GRB 080319B) supernovae: individual - Online-only material: color figures Tanvir, N. Rol, E. Levan, A. Svensson, K. Fruchter, A. Granot, J. O’Brien, P. Wiersema, K. Starling, R. Jakobsson, P. Fynbo, J. Hjorth, J. Curran, Peter van der Horst, A. Kouveliotou, C. Racusin, J. Burrows, D. Genet, F. Late-time Observations of GRB 080319B: Jet Break, Host Galaxy, and Accompanying Supernova |
| title | Late-time Observations of GRB 080319B: Jet Break, Host Galaxy, and Accompanying Supernova |
| title_full | Late-time Observations of GRB 080319B: Jet Break, Host Galaxy, and Accompanying Supernova |
| title_fullStr | Late-time Observations of GRB 080319B: Jet Break, Host Galaxy, and Accompanying Supernova |
| title_full_unstemmed | Late-time Observations of GRB 080319B: Jet Break, Host Galaxy, and Accompanying Supernova |
| title_short | Late-time Observations of GRB 080319B: Jet Break, Host Galaxy, and Accompanying Supernova |
| title_sort | late-time observations of grb 080319b: jet break, host galaxy, and accompanying supernova |
| topic | galaxies: high-redshift gamma-ray burst: individual (GRB 080319B) supernovae: individual - Online-only material: color figures |
| url | http://iopscience.iop.org/0004-637X/725/1/625/pdf/0004-637X_725_1_625.pdf http://hdl.handle.net/20.500.11937/27456 |