SN 2018ijp: the explosion of a stripped-envelope star within a dense H-rich shell?

Abstract

In this paper, we discuss the outcomes of the follow-up campaign of SN 2018ijp, discovered as part of the Zwicky Transient Facility survey for optical transients. Its first spectrum shows similarities to broad-lined Type Ic supernovae around maximum light, whereas later spectra display strong signatures of interaction between rapidly expanding ejecta and a dense H-rich circumstellar medium, coinciding with a second peak in the photometric evolution of the transient. This evolution, along with the results of modeling of the first light curve peak, suggests a scenario where a stripped star exploded within a dense circumstellar medium. The two main phases in the evolution of the transient could be interpreted as a first phase dominated by radioactive decays, and an later interaction-dominated phase where the ejecta collide with a pre-existing shell. We therefore discuss SN 2018jp within the context of a massive star depleted of its outer layers exploding within a dense H-rich circumstellar medium.

Accepted for publication on Astronomy and Astrophysics. 11 pages, 10 figures, 1 table. Photometric table available at the CDS

References in corpus (22)

• The Zwicky Transient Facility: System Overview, Performance, and First Results
• The Zwicky Transient Facility: Data Processing, Products, and Archive
• Physical Properties of Wolf-Rayet Stars
• The Zwicky Transient Facility: Science Objectives
• Determining the Type, Redshift, and Age of a Supernova Spectrum
• A giant outburst two years before the core-collapse of a massive star
• SN 2006jc: A Wolf-Rayet Star Exploding in a Dense He-Rich Circumstellar Medium
• The Zwicky Transient Facility: Observing System
• The magnetar model for Type I superluminous supernovae I: Bayesian analysis of the full multicolour light curve sample with MOSFiT
• The Broad-lined Type Ic SN 2003jd
• Fully-Automated Reduction of Longslit Spectroscopy with the Low Resolution Imaging Spectrometer at Keck Observatory
• Red supergiants as potential Type IIn supernova progenitors: Spatially resolved 4.6 micron CO emission around VY CMa and Betelgeuse
• SN 2004aw: Confirming Diversity of Type Ic Supernovae
• Early-time light curves of Type Ib/c supernovae from the SDSS-II Supernova Survey
• The GROWTH Marshal: A Dynamic Science Portal for Time-Domain Astronomy
• ESC Supernova spectroscopy of non-ESC targets
• Analysis of Late--time Light Curves of Type IIb, Ib and Ic Supernovae
• SN 2005 gj: Evidence for LBV supernovae progenitors?
• Type Ibn Supernovae May not all Come from Massive Stars
• Two stripped envelope supernovae with circumstellar interaction -- but only one really shows it
• The possible detection of a binary companion to a Type Ibn supernova progenitor
• Metal-poor dwarf galaxies in the SIGRID galaxy sample. II. The electron temperature-abundance calibration and the parameters that affect it

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