Radio view of a broad-line Type Ic supernova ASASSN-16fp

Abstract

We present extensive radio observations of a Type Ic supernova, ASASSN-16fp. Our data represents the lowest frequency observations of the SN beyond 1000 days with a frequency range of $0.33-25$ GHz and a temporal range of $\sim$ 8 to 1136 days post-explosion. The observations are best represented by a model of synchrotron emission from a shocked circumstellar shell initially suppressed by synchrotron self-absorption. Assuming equipartition of energy between relativistic particles and magnetic fields, we estimate the velocity and radius of the blast wave to be $v\sim 0.15c$ and $r\sim 3.4$ $\times$ $10^{15}$ cm respectively at $t_0$ $\sim$ 8 days post-explosion. We infer the total internal energy of the radio-emitting material evolves as $E$ $\sim$ 0.37 $\times$ $10^{47}$ (t/t${}_0$)${}^{0.65}$ erg. We determine the mass-loss rate of the progenitor star to be $\dot{M}$ $\sim$ $(0.4-3.2)\times 10^{-5}$ $M_{\odot }\mathrm{y}{\mathrm{r}}^{-1}$ at various epochs post-explosion, consistent with the mass-loss rate of Galactic Wolf-Rayet stars. The radio light curves and spectra show a signature of density enhancement in the CSM at a radius of $\sim$ $1.10\times 10^{16}$ cm from the explosion center.

arXiv comment14 pages, 7 figures, Accepted for publication in MNRAS

References in corpus (51)

• The Swift X-ray Telescope
• Discovery of the peculiar supernova 1998bw in the error box of GRB980425
• A very energetic supernova associated with the gamma-ray burst of 29 March 2003
• Mass Loss: Its Effect on the Evolution and Fate of High-Mass Stars
• WISeREP - An Interactive Supernova Data Repository
• Observed Fractions of Core-Collapse Supernova Types and Initial Masses of their Single and Binary Progenitor Stars
• Type Ib/c supernovae in binary systems I. Evolution and properties of the progenitor stars
• A Common Origin for Cosmic Explosions Inferred from Fireball Calorimetry
• Circumstellar Emission from Type Ib and Ic Supernovae
• A Relativistic Type Ibc Supernova Without a Detected Gamma-ray Burst
• Optical Photometry and Spectroscopy of the SN 1998bw-like Type Ic Supernova 2002ap
• The Arcminute Microkelvin Imager
• The Broad-lined Type Ic SN 2003jd
• Late-time Radio Observations of 68 Type Ibc Supernovae: Strong Constraints on Off-Axis Gamma-ray Bursts
• Discovery, Progenitor & Early Evolution of a Stripped Envelope Supernova iPTF13bvn
• How much H and He is "hidden" in SNe Ib/c? I. - low-mass objects
• The Type Ic Hypernova SN 2003dh/GRB 030329
• Radio Emission and Particle Acceleration in SN 1993J
• The Radio and X-ray Luminous SN 2003bg and the Circumstellar Density Variations Around Radio Supernovae
• Automating Discovery and Classification of Transients and Variable Stars in the Synoptic Survey Era
• BeppoSAX Observations of GRB980425: Detection of the Prompt Event and Monitoring of the Error Box
• Radio Supernova SN 1998bw and Its Relation to GRB 980425
• Relativistic supernovae have shorter-lived central engines or more extended progenitors: the case of SN\,2012ap
• The Radio Evolution of the Ordinary Type Ic SN 2002ap
• iPTF13bvn: The First Evidence of a Binary Progenitor for a Type Ib Supernova
• Thermal and non-thermal emission from circumstellar interaction
• Supernova 2002ap - The First Month
• Evolutionary Models for Type Ib/c Supernova Progenitors
• Possible binary progenitors for the type Ib supernova iPTF13bvn
• SN 2009bb: a Peculiar Broad-Lined Type Ic Supernova
• A multi-wavelength investigation of the radio-loud supernova PTF11qcj and its circumstellar environment
• Progenitors of supernova Ibc: a single Wolf-Rayet star as the possible progenitor of the SN Ib iPTF13bvn
• The Radio and X-ray Luminous Type Ibc Supernova 2003L
• Accurate Calorimetry of GRB 030329
• An Early & Comprehensive Millimeter and Centimeter Wave and X-ray Study of Supernova 2011dh: A Non-Equipartition Blastwave Expanding into A Massive Stellar Wind
• GRB 161219B / SN 2016jca: A low-redshift gamma-ray burst supernova powered by radioactive heating
• Radio and X-ray Observations of the Type Ic SN 2007gr Reveal an Ordinary, Non-relativistic Explosion
• A Very Large Array 3.6cm continuum survey of Galactic Wolf-Rayet stars
• Radio observations of a sample of broad-lined type Ic supernovae discovered by PTF/iPTF: A search for relativistic explosions
• GRB 161219B-SN 2016jca: a powerful stellar collapse
• IPAC Image Processing and Data Archiving for the Palomar Transient Factory
• On the progenitor of the Type Ic supernova 2002ap
• FLAGCAL:A flagging and calibration package for radio interferometric data
• SN 2016coi/ASASSN-16fp: An example of residual helium in a type Ic supernova?
• A Missing-Link in the Supernova-GRB Connection: The Case of SN 2012ap
• Radio Supernovae as Distance Indicators
• SN 2016coi (ASASSN-16fp): an energetic H-stripped core-collapse supernova from a massive stellar progenitor with large mass loss
• Giant Metrewave Radio Telescope monitoring of the black hole X-ray binary, V404 Cygni, during its June 2015 outburst
• The double-peaked radio light curve of PTF11qcj
• ASASSN-16fp (SN 2016coi): A transitional supernova between Type Ic and broad-lined Ic
• Broad-Lined Supernova 2016coi with Helium Envelope

Cited by in corpus (3)

• uGMRT observations of a Fast and Blue Optical Transient -- AT 2018cow
• The final months of massive star evolution from the circumstellar environment around SN Ic 2020oi
• Radio evolution of a Type IIb supernova SN 2016gkg