Infrared supernova light curves and asymmetric stellar mass loss

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

DOI:https://doi.org/10.1086/114623· OSTI ID:5438852

Emmering, R T; Chevalier, R A

Infrared dust emission echos from Type II supernovae are a natural consequence of the heating of circumstellar dust by the supernova light. Red supergiants, the likely progenitors of most Type II supernovae, are known in some cases to have asymmetric circumstellar envelopes. It is noted that an asymmetric dust distribution can have a substantial effect on the evolution of an infrared echo and results are presented for an ellipsoidal dust distribution. The angle between the symmetry axis and the line of sight is unknown in any particular case so that detailed observations of a number of supernovae will be necessary to test for asymmetries. Asymmetries may also be observable in the radio structure of supernovae and in a possible scattered-light echo. 16 references.

• Research Organization: Virginia Univ., Charlottesville (USA)
• OSTI ID: 5438852
• Journal Information: Astron. J.; (United States), Journal Name: Astron. J.; (United States) Vol. 95; ISSN ANJOA
• 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
ASYMMETRY
BRIGHTNESS
COSMIC DUST
DISTRIBUTION
DUSTS
ELECTROMAGNETIC RADIATION
ERUPTIVE VARIABLE STARS
GIANT STARS
HEATING
INFRARED RADIATION
MASS DISTRIBUTION
MASS TRANSFER
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
RADIOWAVE RADIATION
RED GIANT STARS
SPATIAL DISTRIBUTION
STAR EVOLUTION
STARS
SUPERGIANT STARS
SUPERNOVAE
VARIABLE STARS