GRB 031203

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GRB 031203
Event type Gamma-ray burst   OOjs UI icon edit-ltr-progressive.svg
Constellation Puppis   OOjs UI icon edit-ltr-progressive.svg
Distance1.3 billion light years
Other designationsGRB 031203, SN 2003lw
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GRB 031203 was a gamma-ray burst (GRB) detected on December 3, 2003. A gamma-ray burst is a highly luminous flash associated with an explosion in a distant galaxy and producing gamma rays, the most energetic form of electromagnetic radiation, and often followed by a longer-lived "afterglow" emitted at longer wavelengths (X-ray, ultraviolet, optical, infrared, and radio).

Contents

Discovery

GRB 031203 was detected by INTEGRAL on December 3, 2003, at 22:01:28 UTC. The burst lasted 20 seconds [1] and was located at a sky position of 08h 02m 30.20s and −39° 51′ 03.90″. [2] The burst's afterglow was detected in optical wavelengths by the Mercator Telescope, [3] radio wavelengths by the Very Large Array, [4] and X-ray wavelengths by the XMM-Newton satellite. [5]

X-ray halo

Observations of the detection region were made by XMM-Newton starting 6 hours after the burst was detected. The X-ray afterglow of the burst was surrounded by two concentric rings which increased in size as time elapsed. This was the first X-ray halo that had ever been observed around a gamma-ray burst. [5] The rings were caused by light being scattered off of columns of dust between the gamma-ray burst and the detector. [5]

Energetics

At a redshift of z = 0.105, [6] GRB 031203 was both the closest and faintest gamma-ray burst that had ever been observed. [2] It was about 1.3 billion light-years from Earth. [7] Gamma-ray bursts, which generally emit roughly the same amount of energy, had previously been treated as standard candles. However, GRB 031203 and the earlier GRB 980425 were notable exceptions to the standard candle model due to their low energy output. [8] This led some researchers to believe that GRB 031203 may have been an X-ray flash, [9] viewed off-axis, [10] or a member of a previously unknown population of nearby faint bursts. [2]

See also

Notes

  1. ↑ Gotz, Diego (December 3, 2003). "GRB 031203: A long GRB detected with INTEGRAL". GCN Circulars. 2459: 1. Bibcode:2003GCN..2459....1G.
  2. 1 2 3 "Chandra Contributes to ESA's Integral Detection of Closest Gamma-Ray Burst" (Press release). NASA. August 4, 2004. Archived from the original on May 15, 2010. Retrieved June 4, 2010.
  3. ↑ Bourban, Gerald (December 4, 2003). "GRB031203: Optical Observations". GCN Circulars. 2465: 1. Bibcode:2003GCN..2465....1B.
  4. ↑ Frail, Dale (December 6, 2003). "GRB 031203: Radio detection". GCN Circulars. 2473: 1. Bibcode:2003GCN..2473....1F.
  5. 1 2 3 Vaughan, S.; et al. (March 1, 2004). "The Discovery of an Evolving Dust-scattered X-Ray Halo around GRB 031203". The Astrophysical Journal. 603 (1): L5–L8. arXiv: astro-ph/0312603 . Bibcode:2004ApJ...603L...5V. doi:10.1086/382785. S2CID   7338450.
  6. ↑ Soderberg, A. M.; et al. (August 5, 2004). "The sub-energetic gamma-ray burst GRB 031203 as a cosmic analogue to the nearby GRB 980425". Nature. 430 (7000): 648–650. arXiv: astro-ph/0408096 . Bibcode:2004Natur.430..648S. doi:10.1038/nature02757. PMID   15295592. S2CID   4363027.
  7. ↑ "2012: Fear No Supernova". NASA . 13 April 2015. Archived from the original on 2023-07-24.
  8. ↑ Dado, Schlomo; Dar, Arnon (July 10, 2005). "The Double-Peak Spectral Energy Density of Gamma-Ray Bursts and the True Identity of GRB 031203". The Astrophysical Journal. 627 (2): L109–L112. arXiv: astro-ph/0409466 . Bibcode:2005ApJ...627L.109D. doi:10.1086/432416. S2CID   6093968.
  9. ↑ Watson, D.; et al. (April 20, 2004). "A Very Low Luminosity X-Ray Flash: XMM-Newton Observations of GRB 031203". The Astrophysical Journal. 605 (2): L101–L104. arXiv: astro-ph/0401225 . Bibcode:2004ApJ...605L.101W. doi:10.1086/420844. S2CID   178510.
  10. ↑ Sazonov, S. Yu.; et al. (August 5, 2004). "An apparently normal gamma-ray burst with an unusually low luminosity". Nature. 430 (7000): 646–648. arXiv: astro-ph/0408095 . Bibcode:2004Natur.430..646S. doi:10.1038/nature02748. PMID   15295591. S2CID   4420642.

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