TYPE IIP SUPERNOVA 2009kf: EXPLOSION DRIVEN BY BLACK HOLE ACCRETION?

Journal Article · Mon Nov 01 00:00:00 EDT 2010 · Astrophysical Journal Letters

DOI:https://doi.org/10.1088/2041-8205/723/1/L89· OSTI ID:21452709

Utrobin, V P ^[1]; Chugai, N N ^[2]

---

1. Institute of Theoretical and Experimental Physics, B. Cheremushkinskaya St. 25, 117218 Moscow (Russian Federation)
2. Institute of Astronomy, RAS, Pyatnitskaya 48, 109017 Moscow (Russian Federation)

The unusually bright type IIP supernova (SN) 2009kf is studied employing hydrodynamic modeling. We derived optimal values of the ejecta mass of 28.1 M{sub sun}, explosion energy of 2.2 x 10{sup 52} erg, and presupernova radius of 2 x 10{sup 3} R{sub sun} assuming that {sup 56}Ni mass is equal to the upper limit of 0.4 M{sub sun}. We analyzed effects of the uncertainties in the extinction and {sup 56}Ni mass and concluded that both the ejecta mass and explosion energy cannot be significantly reduced compared with the optimal values. The huge explosion energy of SN 2009kf indicates that the explosion is caused by the same mechanism which operates in energetic SNe Ibc (hypernovae), i.e., via a rapid disk accretion onto black hole. The ejecta mass combined with the black hole mass and the mass lost by stellar wind yields the progenitor mass of about 36 M{sub sun}. We propose a scenario in which massive binary evolution might result in the SN 2009kf event.

• OSTI ID: 21452709
• Journal Information: Astrophysical Journal Letters, Vol. 723, Issue 1; Other Information: DOI: 10.1088/2041-8205/723/1/L89; ISSN 2041-8205
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ACCRETION DISKS
BLACK HOLES
COSMIC GAMMA BURSTS
EXPLOSIONS
MASS
NICKEL 56
SIMULATION
STAR EVOLUTION
STELLAR WINDS
SUPERNOVAE
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BINARY STARS
COSMIC RADIATION
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ERUPTIVE VARIABLE STARS
EVEN-EVEN NUCLEI
EVOLUTION
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOTOPES
NICKEL ISOTOPES
NUCLEI
PRIMARY COSMIC RADIATION
RADIATIONS
RADIOISOTOPES
STARS
STELLAR ACTIVITY
VARIABLE STARS