XMM-Newton Observations of the Field of Gamma-Ray Burst 980425
arXiv:astro-ph/0304521 · doi:10.1016/j.asr.2003.04.072
Abstract
The error box of GRB980425 has been observed by XMM-Newton in March 2002, with the aim of measuring the late epoch X-ray emission of the supernova 1998bw and of clarifying its supposed association with the GRB itself. We present here the preliminary results obtained with the EPIC PN camera. Our observations confirm the association between SN 1998bw and GRB980425. The EPIC PN measurement of the SN 1998bw flux is significantly below the extrapolation of the power-law temporal trend fitted to the BeppoSAX points and implies a faster temporal decay. We propose different physical interpretations of the SN X-ray light curve, according to whether it is produced by one or more radiation components.
arXiv comment5 pages, 2 figures; in press in Adv. Sp. Res., Proceedings of the 34th COSPAR Scientific Assembly, Houston, 10-19 October 2002
References in corpus (31)
- The European Photon Imaging Camera on XMM-Newton: The MOS Cameras
- Discovery of the peculiar supernova 1998bw in the error box of GRB980425
- A very energetic supernova associated with the gamma-ray burst of 29 March 2003
- Spectroscopic Discovery of the Supernova 2003dh Associated with GRB 030329
- Beaming in Gamma-Ray Bursts: Evidence for a Standard Energy Reservoir
- Are Gamma-Ray Bursts in Star Forming Regions?
- A `Hypernova' model for SN 1998bw associated with gamma-ray burst of 25 April 1998
- Relativistic Jets in Collapsars
- HST and Palomar Imaging of GRB 990123: Implications for the Nature of Gamma-Ray Bursts and their Hosts
- The Signature of Supernova Ejecta Measured in the X-ray Afterglow of Gamma-Ray Burst 011211
- Evidence for a supernova in reanalyzed optical and near-infrared images of GRB970228
- Detection of a supernova signature associated with GRB 011121
- The X-ray afterglow of the Gamma-ray burst of May 8, 1997: spectral variability and possible evidence of an iron line
- BeppoSAX Observations of GRB980425: Detection of the Prompt Event and Monitoring of the Error Box
- New Constraints on Neutron Star Cooling from Chandra Observations of 3C58
- Chandra X-ray Observations of the Spiral Galaxy M81
- GRB 011121: A Massive Star Progenitor
- Supernova Interaction with a Circumstellar Medium
- Optical and near-infrared observations of the GRB020405 afterglow
- Discovery of GRB 020405 and its Late Red Bump
- GRB 010222: A Burst Within a Starburst
- Monitoring the Evolution of the X-ray Remnant of SN 1987A
- GRB 000418: A Hidden Jet Revealed?
- The X-ray Afterglows of GRB 020813 and GRB 021004 with Chandra HETGS: Possible Evidence for a Supernova Prior to GRB 020813
- The jet and circumburst stellar wind of GRB 980519
- X-Ray Supernovae
- X-ray afterglows from gamma-ray bursts
- X-ray Emission from the Type Ic Supernova 1994I Observed with Chandra
- XMM-Newton observation of SN1993J in M81
- On the radio afterglow of gamma ray bursts
- Off-axis Emission from the Beamed Afterglow of Gamma Ray Bursts and a Possible Interpretation of Slowly Declining X-Ray Afterglow of GRB980425
Cited by in corpus (6)
- Models for the Type Ic Hypernova SN 2003lw associated with GRB 031203
- On the classification of GRBs and their occurrence rates
- A universal scaling for short and long gamma-ray bursts: E_{X,iso}-E_{gamma,iso}-E_{pk}
- The quest for new correlations in the realm of the Gamma-Ray Burst -- Supernova connection
- Fundamental physics from black holes, neutron stars and gamma-ray bursts
- A search for pulsations from the compact object of GRB 060218