Multi-dimensional explosion geometry of supernovae: Spectropolarimetric study with Subaru

Masaomi Tanaka, Koji S. Kawabata, Takashi Hattori, Kentaro Aoki, Masanori Iye, Keiichi Maeda, Paolo A. Mazzali, Ken'ichi Nomoto, Elena Pian, Toshiyuki Sasaki, Masayuki Yamanaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The explosion mechanism of supernovae (SNe) is a longstanding mystery. Clarifying the multi-dimensional shape of the explosion by observations will give important constraints on the explosion mechanism. Among various kinds of observations, polarization measurement is the most direct method to study the geometry of a SN, an extragalactic point source. We have been conducting spectropolarimetric observations of stripped-envelope SNe with the Subaru telescope. We have detected linear polarization at various lines, undoubtedly indicating that the explosion is not spherically symmetric. We discuss possible explosion geometry to explain these features.

Original languageEnglish
Title of host publicationDeciphering the Ancient Universe with Gamma-Ray Bursts
Pages433-435
Number of pages3
DOIs
Publication statusPublished - 2010 Dec 13
Externally publishedYes
EventInternational Symposium "Deciphering the Ancient Universe with Gamma-Ray Bursts" - Kyoto, Japan
Duration: 2010 Apr 192010 Apr 23

Publication series

NameAIP Conference Proceedings
Volume1279
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Symposium "Deciphering the Ancient Universe with Gamma-Ray Bursts"
CountryJapan
CityKyoto
Period10/4/1910/4/23

Keywords

  • Gamma-ray bursts
  • Nucleosynthesis
  • Polarization
  • Supernovae

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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