The Detailed Optical Light Curve of GRB 030329
| dc.contributor.author | Lipkin, Y. M. | |
| dc.contributor.author | Ofek, E. O. | |
| dc.contributor.author | Gal-Yam, A. | |
| dc.contributor.author | Leibowitz, E. M. | |
| dc.contributor.author | Poznanski, D. | |
| dc.contributor.author | Kaspi, S. | |
| dc.contributor.author | Polishook, D. | |
| dc.contributor.author | Kulkarni, S. R. | |
| dc.contributor.author | Fox, D. W. | |
| dc.contributor.author | Berger, E. | |
| dc.contributor.author | Mirabal, N. | |
| dc.contributor.author | Halpern, J. | |
| dc.contributor.author | Bureau, M. | |
| dc.contributor.author | Fathi, K. | |
| dc.contributor.author | Price, P. A. | |
| dc.contributor.author | Peterson, B. A. | |
| dc.contributor.author | Frebel, A. | |
| dc.contributor.author | Schmidt, B. | |
| dc.contributor.author | Orosz, J. A. | |
| dc.contributor.author | Fitzgerald, J. B. | |
| dc.contributor.author | Bloom, J. S. | |
| dc.contributor.author | Dokkum, P. G. van | |
| dc.contributor.author | Bailyn, C. D. | |
| dc.contributor.author | Buxton, M. M. | |
| dc.contributor.author | Barsony, M. | |
| dc.date.accessioned | 2020-09-08T18:46:47Z | |
| dc.date.available | 2020-09-08T18:46:47Z | |
| dc.date.issued | 2004-01-19 | |
| dc.description.abstract | We present densely sampled BVRI light curves of the optical transient associated with the gamma-ray burst (GRB) 030329, the result of a coordinated observing campaign conducted at five observatories. Augmented with published observations of this GRB, the compiled optical data set contains 2687 photometric measurements, obtained between 78 minutes and 79 days after the burst. This data set allows us to follow the photometric evolution of the transient with unprecedented detail. We use the data to constrain the light curve of the underlying supernova (SN) 2003dh and show that it evolved faster than and was probably somewhat fainter than the Type Ic SN 1998bw, associated with GRB 980425. We find that our data can be described by a broken power-law decay perturbed by a complex variable component. The early- and late-time decay slopes are determined to be α1 ≈ 1.1 and α2 ≈ 2. Assuming this single-break power-law model, we constrain the break to lie between ~3 and ~8 days after the burst. This simple, singly broken power-law model, derived only from the analysis of our optical observations, may also account for available multiband data, provided that the break happened ~8 days after the burst. The more complex double-jet model of Berger et al. provides a comparable fit to the optical, X-ray, millimeter, and radio observations of this event. The unique early coverage available for this event allows us to trace the color evolution of the afterglow during the first hours after the burst. We detect a significant change in optical colors during the first day. Our color analysis is consistent with a cooling-break frequency sweeping through the optical band during the first day. The light curves of GRB 030329 reveal a rich array of variations, superposed over the mean power-law decay. We find that the early variations (lesssim8 days after the burst) are asymmetric, with a steep rise followed by a relatively slower (by a factor of about 2) decline. The variations maintain a similar timescale during the first 4 days and then get significantly longer. The structure of these variations is similar to those previously detected in the afterglows of several GRBs. | en_US |
| dc.description.sponsorship | We thank, M. Uemura and R.A. Burenin for sending us a digital version of their light curves, and the authors of the paper by Matheson et al. (2003) for the early release of their data to the community. We are grateful to A. Fruchter for sending us the host galaxy magnitude prior to publication. We acknowledge fruitful discussions with E. Waxman, D. Frail, and A. Levinson. YML and EOO are grateful to the Dan-David prize foundation for financial support. AG acknowledges a Colton Fellowship. YML, EOO, AG, and DP ×2 were supported in part by grants from the Israel Science Foundation. We thank A. Henden and the USNO staff for providing us, and the GRB community in general, with field photometric calibration. We thank Eve Armstrong for observations at MDM, as well as the observers and staff of all the observatories who participated in this campaign, without which this work would not have been possible. | en_US |
| dc.description.uri | https://iopscience.iop.org/article/10.1086/383000 | en_US |
| dc.format.extent | 14 pages | en_US |
| dc.genre | journal articles preprints | en_US |
| dc.identifier | doi:10.13016/m2yzbi-yu74 | |
| dc.identifier.citation | Y. M. Lipkin et al., The Detailed Optical Light Curve of GRB 030329, ApJ 606 381 (2004), doi : https://doi.org/10.1086/383000 | en_US |
| dc.identifier.uri | https://doi.org/10.1086/383000 | |
| dc.identifier.uri | http://hdl.handle.net/11603/19611 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | IOP | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Physics Department Collection | |
| dc.relation.ispartof | UMBC Joint Center for Earth Systems Technology (JCET) | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II) | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.rights | © 2004. The American Astronomical Society. All rights reserved. | |
| dc.title | The Detailed Optical Light Curve of GRB 030329 | en_US |
| dc.type | Text | en_US |