GRB 070125
GRB 070125 is a gamma-ray burst (GRB) that occurred on 2007 January 25. It is unique in that it did not occur in a galaxy, but in intergalactic space. This is unusual, since this type of GRB are caused by hypernovae of young massive stars, which usually means having to reside in a galaxy, as almost all stars are formed in galaxies, particularly high mass ones. It has a redshift of 1.55, which equals to a light travel distance of 9.5 billion years.[1]
| Other designations | GRB 070125 |
|---|---|
| Event type | Gamma-ray burst  |
| Date | 25 January 2007 |
| Constellation | Gemini |
It is theorized that the star formed in the tidal tail resulting from the interaction of two nearby galaxies, deep in intergalactic space.
A month after it was detected, the Large Binocular Telescope observed a 26th magnitude optical afterglow from the gamma ray burst.[2]
References
- "A Gamma-Ray Burst Out of Nowhere". Sky and Telescope. 18 December 2007. Retrieved 2019-08-22.
- William G. Gilroy. "First science from the Large Binocular Telescope: Notre Dame astrophysicist reports gamma ray finding". Archived from the original on 2009-05-02. Retrieved 2009-08-09.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.