SN 2008ha is an unknown type of supernova that flared up on November 7, 2008 in the galaxy UGC 12682 , which is in the constellation Pegasus .
| SN 2008ha | |
|---|---|
 | |
| Observational data ( Epoch J2000.0) | |
| Galaxy | UGC 12682 |
| Constellation | Pegasus |
| Right ascension | |
| Declination | |
| Galactic coordinates | 098,5631 −40,9944 |
| opening date | November 7, 2008 |
| Max Gloss (V) | 18,8 |
| physical characteristics | |
Content
Characteristics
The supernova was discovered, perhaps, by the youngest astronomer in history — fourteen-year-old Carolyn Moore . [2] While working for the Puckett Observatory Supernova Search Team ( Eng. Puckett Observatory Supernova Search Team ) for several months, in November 2008 she discovered something strange in the pictures. After making a phone call to the secretariat of the International Astronomical Union , she announced the possible discovery of a supernova. Subsequent observations have shown [3] that SN 2008ha belongs to an unknown class of supernova explosions. The brightness period did not exceed 10 days , which is similar to SN 2002cx-like objects (up to 15 days of flash duration). Ultraviolet , optical and infrared photometry showed that the flash was extremely dim for this kind of event. The bolometric luminosity allowed us to determine the flash intensity at the peak — about (9.5 ± 1.4) 10 40 erg / s. During the explosion, (3.0 ± 0.9) ⋅10 −3 M ☉ 56 Ni isotope was formed. The kinetic energy of the explosion was 2⋅10 45 erg, about 0.15 M ☉ of stellar matter was ejected into the outer space.
As part of the International Year of Astronomy , iOptron Corporation ( Boston , USA ) awarded Caroline the honorary title of the youngest astronomer of the year. [four]
Notes
- ↑ SIMBAD Astronomical Database
- ↑ Central Bureau for Astronomical Telegrams (English)
- Yan Ryan J. Foley, Ryan Chornock, Alexei V. Filippenko, Mohan Ganeshalingam, Robert P. Kirshner, Weidong Li, S. Bradley Cenko, Pete Challis, Andrew S. Friedman, Maryam Modjaz, Jeffrey M. Silverman, W. Michael Wood -Vasey. SN 2008ha: An Extremely Low Luminosity and Extremely Low Energy Supernova (eng.) . Arxiv.org (Feb 16, 2009). The appeal date is June 25, 2009.
- O iOptron Announces Caroline Moore as the Young Astronomer of the Year (not available link) . Archived June 4, 2009.
See also
- List of supernovae 2008
Links
- Astronomical database SIMBAD (eng.)
- Gallery of photos SN 2008ha (eng.)