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Circumstellar Interaction in Supernovae in Dense Environments-An Observational Perspective
Stockholm University, Faculty of Science, Department of Astronomy. Pune University, India.
Number of Authors: 1
2018 (English)In: Space Science Reviews, ISSN 0038-6308, E-ISSN 1572-9672, Vol. 214, no 1, article id UNSP 27Article, review/survey (Refereed) Published
Abstract [en]

In a supernova explosion, the ejecta interacting with the surrounding circumstellar medium ( CSM) give rise to variety of radiation. Since CSM is created from the mass loss from the progenitor, it carries footprints of the late time evolution of the star. This is one of the unique ways to get a handle on the nature of the progenitor system. Here, I will focus mainly on the supernovae ( SNe) exploding in dense environments, a.k.a. Type IIn SNe. Radio and X-ray emission from this class of SNe have revealed important modifications in their radiation properties, due to the presence of high density CSM. Forward shock dominance in the X-ray emission, internal free-free absorption of the radio emission, episodic or non-steady mass loss rate, and asymmetry in the explosion seem to be common properties of this class of SNe.

Place, publisher, year, edition, pages
2018. Vol. 214, no 1, article id UNSP 27
Keyword [en]
Radiation mechanisms: general, Radiative transfer, Stars: mass-loss, Supernovae: general, X-rays: general, Radio continuum: general
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:su:diva-154608DOI: 10.1007/s11214-017-0461-6ISI: 000426492400031OAI: oai:DiVA.org:su-154608DiVA, id: diva2:1195026
Available from: 2018-04-04 Created: 2018-04-04 Last updated: 2018-04-04Bibliographically approved

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