Type Ib supernova Master OT J120451.50+265946.6: radio emitting shock with inhomogeneities crossing through a dense shell

Abstract

We present radio observations of a Type Ib supernova (SN) Master OT J120451.50+265946.6. Our low frequency Giant Metrewave Radio Telescope (GMRT) data taken when the SN was in the optically thick phase for observed frequencies reveal inhomogeneities in the structure of the radio emitting region. The high frequency Karl G. Jansky Very Large Array data indicate that the shock is crossing through a dense shell between $\sim$ 47 to $\sim 87$ days. The data $\ge 100$ days onwards are reasonably well fit with the inhomogeneous synchrotron-self absorption model. Our model predicts that the inhomogeneities should smooth out at late times. Low frequency GMRT observations at late epochs will test this prediction. Our findings suggest the importance of obtaining well-sampled wide band radio data in order to understand the intricate nature of the radio emission from young supernovae.

arXiv commentAccepted for publication in ApJ

References in corpus (33)

• The Leiden/Argentine/Bonn (LAB) Survey of Galactic HI: Final data release of the combined LDS and IAR surveys with improved stray-radiation corrections
• The Man Behind the Curtain: X-rays Drive the UV through NIR Variability in the 2013 AGN Outburst in NGC 2617
• Methods and results of an automatic analysis of a complete sample of Swift-XRT observations of GRBs
• A method for optimal image subtraction
• Progenitors of core-collapse supernovae
• Nearby Supernova Rates from the Lick Observatory Supernova Search. II. The Observed Luminosity Functions and Fractions of Supernovae in a Complete Sample
• Observed Fractions of Core-Collapse Supernova Types and Initial Masses of their Single and Binary Progenitor Stars
• The Last of FIRST: The Final Catalog and Source Identifications
• Circumstellar Emission from Type Ib and Ic Supernovae
• Master Robotic Net
• The Carnegie Supernova Project I: analysis of stripped-envelope supernova light curves
• Early-time light curves of Type Ib/c supernovae from the SDSS-II Supernova Survey
• Radio Emission and Particle Acceleration in SN 1993J
• The Radio and X-ray Luminous SN 2003bg and the Circumstellar Density Variations Around Radio Supernovae
• Thermal and non-thermal emission from circumstellar interaction
• Numerical models of collisions between core-collapse supernovae and circumstellar shells
• Accurate early positions for Swift GRBS: enhancing X-ray positions with UVOT astrometry
• Star formation properties in the Local Volume galaxies via $H\alpha$ and FUV fluxes
• Late Emission from the Type Ib/c SN 2001em: Overtaking the Hydrogen Envelope
• Short-Lived Circumstellar Interaction in the Low-Luminosity Type IIP SN 2016bkv
• The Radio and X-ray Luminous Type Ibc Supernova 2003L
• Radio and X-ray observations of SN 2006jd: Another strongly interacting Type IIn supernova
• A Very Large Array 3.6cm continuum survey of Galactic Wolf-Rayet stars
• FLAGCAL:A flagging and calibration package for radio interferometric data
• The peculiar mass-loss history of SN 2014C as revealed through AMI radio observations
• Radio Emission from SN 1994I in NGC 5194 (M 51) - The Best Studied Type Ib/c Radio Supernova
• Giant Metrewave Radio Telescope monitoring of the black hole X-ray binary, V404 Cygni, during its June 2015 outburst
• Inhomogeneities and the modeling of radio supernovae
• Against the Wind: Radio Light Curves of Type Ia Supernovae Interacting with Low-Density Circumstellar Shells
• Searching for the expelled hydrogen envelope in Type I supernovae via late-time H-alpha emission
• Heating from free-free absorption and the mass-loss rate of the progenitor stars to supernovae
• Inhomogeneities in type Ib/c supernovae: An inverse Compton scattering origin of the X-ray emission
• Observational properties of a Type Ib Supernova MASTER OT J120451.50+265946.6 in NGC 4080

Cited by in corpus (8)

• Delayed Radio Flares from a Tidal Disruption Event
• The Radio Luminosity-Risetime Function of Core-Collapse Supernovae
• uGMRT observations of a Fast and Blue Optical Transient -- AT 2018cow
• Constraining High-Energy Neutrino Emission from Supernovae with IceCube
• The nascent milliquasar VT J154843.06+220812.6: tidal disruption event or extreme accretion-state change?
• The dense and non-homogeneous circumstellar medium revealed in radio wavelengths around the Type Ib SN 2019oys
• Radio evolution of a Type IIb supernova SN 2016gkg
• The X-ray and Radio Loud Fast Blue Optical Transient AT2020mrf: Implications for an Emerging Class of Engine-Driven Massive Star Explosions