ASASSN-15C
Sign in to saveAlso known as ASAS-SN-15lh
ASASSN-15lh (supernova designation SN 2015L) is an extremely luminous astronomical transient event discovered by the All Sky Automated Survey for SuperNovae (ASAS-SN), with the appearance of a superluminous supernova event. It was first detected on June 14, 2015, located within a faint galaxy in the southern constellation Indus, and was the most luminous supernova-like object ever observed. At its peak, ASASSN-15lh was 570 billion times brighter than the Sun, and 20 times brighter than the combined light emitted by the Milky Way Galaxy. The emitted energy was exceeded by PS1-10adi.
Key facts
- Supernova.image
- ASASSN-15lhLightCurve.png
- Supernova.caption
- A visual band light curve for ASASSN-15lh, plotted from data published by Godoy-Rivera et al. (2017). The purple line shows the brightness of the host galaxy.
- Supernova.host
- APMUKS(BJ) B215839.70−615403.9
- Supernova.mag_v
- 16.9
via Wikipedia infobox
Wikidata facts
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Encyclopedic overview
12 sectionsContents
- Discovery
- Properties
- Host galaxy
- Suggested mechanisms
- Superluminous supernova
- Magnetar
- Quark nova
- Tidal disruption event (TDE)
- Gravitational lensing
- References
- Further reading
- External links
ASASSN-15lh (supernova designation SN 2015L) is an extremely luminous astronomical transient event discovered by the All Sky Automated Survey for SuperNovae (ASAS-SN), with the appearance of a superluminous supernova event. It was first detected on June 14, 2015, located within a faint galaxy in the southern constellation Indus, and was the most luminous supernova-like object ever observed. At its peak, ASASSN-15lh was 570 billion times brighter than the Sun, and 20 times brighter than the combined light emitted by the Milky Way Galaxy. The emitted energy was exceeded by PS1-10adi.
The nature of ASASSN-15lh is disputed. The most popular explanations are that it is the most luminous Type I supernova (hypernova) ever observed, or a tidal disruption event around a supermassive black hole. Other hypotheses include gravitational lensing, a quark nova inside a Wolf–Rayet star, or a rapid magnetar spindown.
Excerpted from Wikipedia’s “ASASSN-15C” article, available under the CC BY-SA 4.0 licence.