Academic Journal
Progenitor mass of the type IIP supernova 2005cs
| العنوان: | Progenitor mass of the type IIP supernova 2005cs |
|---|---|
| المؤلفون: | V. P. Utrobin, N. N. Chugai |
| المساهمون: | The Pennsylvania State University CiteSeerX Archives |
| المصدر: | http://arxiv.org/pdf/0809.3766v1.pdf. |
| سنة النشر: | 2008 |
| المجموعة: | CiteSeerX |
| الوصف: | Context. The progenitor mass of type IIP supernova can be determined from either hydrodynamic modeling of the event or pre-explosion observations. Aims. To compare these approaches, we determine parameters of the sub-luminous supernova 2005cs and estimate its progenitor mass. Methods. We compute the hydrodynamic models of the supernova to describe its light curves and expansion velocity data. Results. We estimate a presupernova mass of 17.3±1 M⊙, an explosion energy of (4.1±0.3)×10 50 erg, a presupernova radius of 600±140 R⊙, and a radioactive 56 Ni mass of 0.0082 ± 0.0016 M⊙. The derived progenitor mass of SN 2005cs is 18.2±1 M⊙, which is in-between those of low-luminosity and normal type IIP supernovae. Conclusions. The obtained progenitor mass of SN 2005cs is higher than derived from pre-explosion images. The masses of four type IIP supernovae estimated by means of hydrodynamic modeling are systematically higher than the average progenitor mass for the 9−25 M ⊙ mass range. This result, if confirmed for a larger sample, would imply that a serious revision of the present-day view on the progenitors of type IIP supernovae is required. |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.311.7523; http://arxiv.org/pdf/0809.3766v1.pdf |
| الاتاحة: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.311.7523 http://arxiv.org/pdf/0809.3766v1.pdf |
| Rights: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| رقم الانضمام: | edsbas.7CC3FE7E |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |