Reionization of unshocked ejecta in SN 1006

Journal Article · Fri Apr 01 04:00:00 EST 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/166180· OSTI ID:7222678

Hamilton, A J.S.; Fesen, R A

The validity of carbon-deflagration models white dwarf models for type Ia supernovae is investigated by examining whether most of the iron in the center of SN 1006 exists in forms other than Fe II, such as iron grains or other ionic stages of iron, as the models require. The possible ways in which iron can be hidden in SN 1006 are reviewed, and an argument on observational grounds is made against any appreciable fraction of iron in grains or Fe I. Various mechanisms for ionizing unshocked iron beyond Fe II are discussed; the most probable mechanism for ionizing the iron appears to be photoionization by UV and X-ray emission from reverse-shocked ejecta. A detailed model for this reverse-shcok photoionization mechanism is described. 51 references.

• Research Organization: Joint Institute for Laboratory Astrophysics, Boulder, CO (USA); Colorado Univ., Boulder (USA)
• OSTI ID: 7222678
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 327; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION SPECTRA
CHEMICAL COMPOSITION
CLASSIFICATION
COSMIC RADIO SOURCES
DWARF STARS
ELECTROMAGNETIC RADIATION
ELEMENTS
ERUPTIVE VARIABLE STARS
IONIZATION
IONIZING RADIATIONS
IRON
MATHEMATICAL MODELS
METALS
PHOTOIONIZATION
RADIATIONS
SHOCK WAVES
SPECTRA
STAR MODELS
STARS
SUPERNOVA REMNANTS
SUPERNOVAE
TIME DEPENDENCE
TRANSITION ELEMENTS
ULTRAVIOLET SPECTRA
VARIABLE STARS
WHITE DWARF STARS
X RADIATION