Supernova 1987A light curve
V and B light curves for supernova 1987A are here presented and discussed. Just after the outburst in February 23.120 (UT), the brightening was very fast: approximately 6.2 magnitudes in only 7 hours and 41 minutes; subsequently, changes in brightness slowed down and the SN stayed as long as 130 day...
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | Articulo Comunicacion |
| Lenguaje: | Español |
| Publicado: |
1987
|
| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/141682 |
| Aporte de: |
| Sumario: | V and B light curves for supernova 1987A are here presented and discussed. Just after the outburst in February 23.120 (UT), the brightening was very fast: approximately 6.2 magnitudes in only 7 hours and 41 minutes; subsequently, changes in brightness slowed down and the SN stayed as long as 130 days brighter than magnitude mᵥ=4.4 (or m_b=5.). The brightening rate at the beginning of the event and the time spent around maximum light are somewhat larger than usual. At maximum brightness SN 1987A reached Mᵥₘₐₓ=-16.1, and M_bmax=-14.7. Typical values for a type II SN being Mᵥₘₐₓ ≃ M_bmax = -17.60, the conclusion is arrived at that SN 1987A was fainter than usual for objects of this class. A comparison with other known supernovae is made. This paper will be published in full elsewhere. |
|---|