VLBI Constraints on Type I b/c Supernovae

Abstract

VLBI observations of supernovae and gamma-ray bursts provide almost the only way of obtaining spatially resolved information about the sources. In particular, a determination of the expansion velocity of the forward shock, as well as the geometry of the fireball and its evolution with time are possible for relatively nearby events, provided they are radio bright. Monitoring the expansion of the shock front can provide information on the density profiles of both the circumstellar material and on the ejecta. VLBI observations can also potentially resolve GRB jets which are not directed along the line of sight, providing crucial confirmation of relativistic expansion in such objects. This review gives an overview of recent results from supernovae, including the Type I b/c SNe 2011dh, 2009bb, and 2007gr, and discusses the prospects for future observations.

Accepted for publication in Publications of the Astronomical Society of Australia 8 pages; this second version is a minor revision to fix typos

References in corpus (12)

• Circumstellar Emission from Type Ib and Ic Supernovae
• The metamorphosis of Supernova SN2008D/XRF080109: a link between Supernovae and GRBs/Hypernovae
• Discovery, Progenitor & Early Evolution of a Stripped Envelope Supernova iPTF13bvn
• SN 2007bg: The Complex Circumstellar Environment Around One of the Most Radio-Luminous Broad-Lined Type Ic Supernovae
• Integral field spectroscopy of supernova explosion sites: constraining mass and metallicity of the progenitors -- II. Type II-P and II-L supernovae
• A mildly relativistic radio jet from the otherwise normal Type Ic Supernova 2007gr
• SN 1993J VLBI (IV): A Geometric Determination of the Distance to M81 with the Expanding Shock Front Method
• The X-Ray Transient 080109 in NGC 2770: an X-Ray Flash Associated with a Normal Core-Collapse Supernova
• Baryon Loaded Relativistic Blastwaves in Supernovae
• SN 2001em: No Jet-Driven Gamma Ray Burst Event
• VLBI Observations of SN 2008D
• VLBI Observations of SN 2009bb

Cited by in corpus (5)

• Radio limits on off-axis GRB afterglows and VLBI observations of SN 2003gk
• Supernova Interaction with a Dense Detached Shell in SN 2001em
• Radio synchrotron emission from secondary electrons in interaction-powered supernovae
• Constraints on the environment and energetics of the Broad-Line Ic SN2014ad from deep radio and X-ray observations
• Modeling the circumstellar interaction around SN 2004gq