 X-ray (left) and visible light (right) images of
SN 2008D (1), and SN 2007uy (2). | |
| Event type | Supernova |
|---|---|
| Type Ib [1] | |
| Date |
c. 96.2 million years ago (detected 31 December 2007 by Yoji Hirose [2]) |
| Constellation | Lynx |
| Right ascension | 09h 09m 35.28s [2] |
| Declination | +33° 07′ 09.2″ [2] |
| Epoch | J2000 |
| Galactic coordinates | l = 191.58°, b = +42.2° [2] |
| Distance | 96.2 ± 5.9 Mly (29.5 ± 1.8 Mpc) [3] |
| Redshift | 0.0065 [2] |
| Host | NGC 2770 [2] |
| Peak apparent magnitude | 17.2 [2] |
| Total energy output | ~1.5×1051 erg [3] |
| Other designations | SN 2007uy |
SN 2007uy was a supernova that occurred in the spiral galaxy NGC 2770. It was discovered by Yoji Hirose on December 31, 2007 from Chigasaki city in Japan, [4] approximately four days after the explosion. [3] The position of the supernova was offset 20.6 ″ east and 15.5″ south of the galaxy's nucleus, [2] near a star-forming region. [5] It was identified as a Type Ib supernova from its spectrum a week before reaching maximum, and appeared the most similar to SN 2004gq. [1]
Emissions from SN 2007uy were detected from the X-ray to the radio band. [6] The light from this event was heavily reddened due to intervening dust in the host galaxy. This energetic explosion released ~1.5×1051 erg in energy and ejected a mass of 4.4 M☉. [3] The progenitor was likely a massive star that had been stripped of its hydrogen envelope by a binary companion. [5] There is no radio evidence of a relativistic jet of the type that would be associated with a gamma-ray burst. [6]
While interesting in its own right, SN 2007uy was overshadowed by SN 2008D, a supernova whose burst was observed serendipitously while SN 2007uy was being studied by Swift, something unprecedented in astronomy. [7] This second supernova occurred within ten days of the first. [6]
- ^ a b Blondin, S.; Calkins, M. (January 2008). Green, D. W. E. (ed.). "Supernova 2007uy in NGC 2770". Central Bureau Electronic Telegrams. 1191 (2): 2. Bibcode: 2008CBET.1191....2B.
- ^ a b c d e f g h Barbon, R.; et al. (2008). "Asiago Supernova Catalogue". CDS/ADC Collection of Electronic Catalogues. Bibcode: 2008yCat....1.2024B.
- ^ a b c d Roy, Rupak; et al. (September 2013). "SN 2007uy - metamorphosis of an aspheric Type Ib explosion". Monthly Notices of the Royal Astronomical Society. 434 (3): 2032–2050. arXiv: 1306.5389. Bibcode: 2013MNRAS.434.2032R. doi: 10.1093/mnras/stt1148.
- ^ Nakano, S.; et al. (January 2008). Green, D. W. E. (ed.). "Supernova 2007uy in NGC 2770". IAU Circular. 8908 (2): 2. Bibcode: 2008IAUC.8908....2N.
- ^ a b Thöne, C. C.; et al. (February 2015). The beauty of resolution: The SN Ib factory NGC 2770 spatially resolved. Galaxies in 3D across the Universe, Proceedings of the International Astronomical Union, IAU Symposium. Vol. 309. p. 169-170. Bibcode: 2015IAUS..309..169T. doi: 10.1017/S1743921314009594.
- ^ a b c van der Horst, A. J.; et al. (January 2011). "Detailed Radio View on Two Stellar Explosions and Their Host Galaxy: XRF 080109/SN 2008D and SN 2007uy in NGC 2770". The Astrophysical Journal. 726 (2): 12. arXiv: 1011.2521. Bibcode: 2011ApJ...726...99V. doi: 10.1088/0004-637X/726/2/99. S2CID 17719552. 99.
- ^ "NASA's Swift Satellite Catches First Supernova in the Act of Exploding". Goddard Space Flight Center. May 21, 2008. Retrieved 2021-12-10.
- Light curves and spectra Archived 2017-10-23 at the Wayback Machine on the Open Supernova Catalog
- IAUC 8908 IAU Circular announcing the discovery.
|
X-ray (left) and visible light (right) images of
SN 2008D (1), and SN 2007uy (2). | |
| Event type | Supernova |
|---|---|
| Type Ib [1] | |
| Date |
c. 96.2 million years ago (detected 31 December 2007 by Yoji Hirose [2]) |
| Constellation | Lynx |
| Right ascension | 09h 09m 35.28s [2] |
| Declination | +33° 07′ 09.2″ [2] |
| Epoch | J2000 |
| Galactic coordinates | l = 191.58°, b = +42.2° [2] |
| Distance | 96.2 ± 5.9 Mly (29.5 ± 1.8 Mpc) [3] |
| Redshift | 0.0065 [2] |
| Host | NGC 2770 [2] |
| Peak apparent magnitude | 17.2 [2] |
| Total energy output | ~1.5×1051 erg [3] |
| Other designations | SN 2007uy |
SN 2007uy was a supernova that occurred in the spiral galaxy NGC 2770. It was discovered by Yoji Hirose on December 31, 2007 from Chigasaki city in Japan, [4] approximately four days after the explosion. [3] The position of the supernova was offset 20.6 ″ east and 15.5″ south of the galaxy's nucleus, [2] near a star-forming region. [5] It was identified as a Type Ib supernova from its spectrum a week before reaching maximum, and appeared the most similar to SN 2004gq. [1]
Emissions from SN 2007uy were detected from the X-ray to the radio band. [6] The light from this event was heavily reddened due to intervening dust in the host galaxy. This energetic explosion released ~1.5×1051 erg in energy and ejected a mass of 4.4 M☉. [3] The progenitor was likely a massive star that had been stripped of its hydrogen envelope by a binary companion. [5] There is no radio evidence of a relativistic jet of the type that would be associated with a gamma-ray burst. [6]
While interesting in its own right, SN 2007uy was overshadowed by SN 2008D, a supernova whose burst was observed serendipitously while SN 2007uy was being studied by Swift, something unprecedented in astronomy. [7] This second supernova occurred within ten days of the first. [6]
- ^ a b Blondin, S.; Calkins, M. (January 2008). Green, D. W. E. (ed.). "Supernova 2007uy in NGC 2770". Central Bureau Electronic Telegrams. 1191 (2): 2. Bibcode: 2008CBET.1191....2B.
- ^ a b c d e f g h Barbon, R.; et al. (2008). "Asiago Supernova Catalogue". CDS/ADC Collection of Electronic Catalogues. Bibcode: 2008yCat....1.2024B.
- ^ a b c d Roy, Rupak; et al. (September 2013). "SN 2007uy - metamorphosis of an aspheric Type Ib explosion". Monthly Notices of the Royal Astronomical Society. 434 (3): 2032–2050. arXiv: 1306.5389. Bibcode: 2013MNRAS.434.2032R. doi: 10.1093/mnras/stt1148.
- ^ Nakano, S.; et al. (January 2008). Green, D. W. E. (ed.). "Supernova 2007uy in NGC 2770". IAU Circular. 8908 (2): 2. Bibcode: 2008IAUC.8908....2N.
- ^ a b Thöne, C. C.; et al. (February 2015). The beauty of resolution: The SN Ib factory NGC 2770 spatially resolved. Galaxies in 3D across the Universe, Proceedings of the International Astronomical Union, IAU Symposium. Vol. 309. p. 169-170. Bibcode: 2015IAUS..309..169T. doi: 10.1017/S1743921314009594.
- ^ a b c van der Horst, A. J.; et al. (January 2011). "Detailed Radio View on Two Stellar Explosions and Their Host Galaxy: XRF 080109/SN 2008D and SN 2007uy in NGC 2770". The Astrophysical Journal. 726 (2): 12. arXiv: 1011.2521. Bibcode: 2011ApJ...726...99V. doi: 10.1088/0004-637X/726/2/99. S2CID 17719552. 99.
- ^ "NASA's Swift Satellite Catches First Supernova in the Act of Exploding". Goddard Space Flight Center. May 21, 2008. Retrieved 2021-12-10.
- Light curves and spectra Archived 2017-10-23 at the Wayback Machine on the Open Supernova Catalog
- IAUC 8908 IAU Circular announcing the discovery.