The nearby He-rich superluminous supernova SN 2021bnw during photospheric phases

Abstract

Aim. We present and interpret the data of the nearby hydrogen-deficient but helium-rich superluminous supernova SN 2021bnw which reached a magnitude of -20.7 at maximum luminosity in g band. Methods. We discuss the light curves and spectra of SN 2021bnw based on its spectro-photometric follow up exploiting different observational facilities. We reproduce the NIR spectrum of SN 2021bnw with TARDIS to inspect the chemical composition at late photospheric phases and identify helium features. We also use a STELLA model coupling hydrodynamics and radiation transport to constrain the physical parameters of the explosion assmunig a 56Ni+CSM scenario. Results. We suggest that SN 2021bnw was mainly powered by the interaction of the ejecta with a previously lost He-rich circumstellar material, coupled with a central power source. Conclusions. This work expands the data sample of He-rich superluminous supernovae rich (SLSNe Ib) and, assuming a single progenitor scenario, can constrain the masses and the physics of their progenitors.

arXiv comment14 pages, 12 figures, 4 tables. Accepted for publication in A&A; matches the final version in A&A

References in corpus (106)

• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• Correcting for the Effects of Interstellar Extinction
• Collapsars - Gamma-Ray Bursts and Explosions in "Failed Supernovae"
• The Zwicky Transient Facility: System Overview, Performance, and First Results
• The Nucleosynthetic Signature of Population III
• Cosmic-Ray Rejection by Laplacian Edge Detection
• The Zwicky Transient Facility: Data Processing, Products, and Archive
• Progenitors of core-collapse supernovae
• ATLAS: A High-Cadence All-Sky Survey System
• Observation of High-Energy Astrophysical Neutrinos in Three Years of IceCube Data
• Core-Collapse Supernovae from 9 to 120 Solar Masses Based on Neutrino-powered Explosions
• The Zwicky Transient Facility: Science Objectives
• Supernova Light Curves Powered by Young Magnetars
• WISeREP - An Interactive Supernova Data Repository
• Luminous Supernovae
• Magnetorotationally driven Supernovae as the origin of early galaxy $r$-process elements?
• Bright Supernovae from Magnetar Birth
• Progenitor-Explosion Connection and Remnant Birth Masses for Neutrino-Driven Supernovae of Iron-Core Progenitors
• Supernova 2007bi as a pair-instability explosion
• An Empirical Relation between Sodium Absorption and Dust Extinction
• Shock Breakout in Dense Mass Loss: Luminous Supernovae
• Super Luminous Ic Supernovae: catching a magnetar by the tail
• The Zwicky Transient Facility: Surveys and Scheduler
• PESSTO : survey description and products from the first data release by the Public ESO Spectroscopic Survey of Transient Objects
• Evidence for Astrophysical Muon Neutrinos from the Northern Sky with IceCube
• Generalized Semi-Analytical Models of Supernova Light Curves
• The Zwicky Transient Facility: Observing System
• A comparative modeling of supernova 1993J
• Radiation hydrodynamics of SN 1987A: I. Global analysis of the light curve for the first 4 months
• The ATLAS All-Sky Stellar Reference Catalog
• Slowly fading super-luminous supernovae that are not pair-instability explosions
• The magnetar model for Type I superluminous supernovae I: Bayesian analysis of the full multicolour light curve sample with MOSFiT
• Analytical Light Curve Models of Super-Luminous Supernovae: chi^2-Minimizations of Parameter Fits
• Hydrogen-Poor Superluminous Supernovae and Long-Duration Gamma-Ray Bursts Have Similar Host Galaxies
• The Landscape of the Neutrino Mechanism of Core-Collapse Supernovae: Neutron Star and Black Hole Mass Functions, Explosion Energies and Nickel Yields
• The SED Machine: a robotic spectrograph for fast transient classification
• The Most Luminous Supernovae
• Spectroscopy of superluminous supernova host galaxies. A preference of hydrogen-poor events for extreme emission line galaxies
• 3D deflagration simulations leaving bound remnants: a model for 2002cx-like Type Ia supernovae
• On the diversity of super-luminous supernovae: ejected mass as the dominant factor
• The Spectral SN-GRB Connection: Systematic Spectral Comparisons between Type Ic Supernovae, and broad-lined Type Ic Supernovae with and without Gamma-Ray Bursts
• The Carnegie Supernova Project I: analysis of stripped-envelope supernova light curves
• A spectral synthesis code for rapid modelling of supernovae
• Spectral Evolution of the Extraordinary Type IIn Supernova 2006gy
• How much 56Ni can be produced in Core-Collapse Supernovae? : Evolution and Explosions of 30 - 100 Msun Stars
• Light Curve Modeling of Superluminous Supernova 2006gy: Collision between Supernova Ejecta and Dense Circumstellar Medium
• Cosmic evolution and metal aversion in super-luminous supernova host galaxies
• R-process Nucleosynthesis from Three-Dimensional Magnetorotational Core-Collapse Supernovae
• Interacting Supernovae: Types IIn and Ibn
• SN 2015bn: a detailed multi-wavelength view of a nearby superluminous supernova
• A Fully Automated Integral Field Spectrograph Pipeline for the SEDMachine: pysedm
• Light curves of hydrogen-poor Superluminous Supernovae from the Palomar Transient Factory
• Spectrum formation in Superluminous Supernovae (Type I)
• Spectra of Hydrogen-Poor Superluminous Supernovae from the Palomar Transient Factory
• Detection of Broad H$\alpha$ Emission Lines in the Late-time Spectra of a Hydrogen-poor Superluminous Supernova
• Setting UBVRI Photometric Zero-Points Using Sloan Digital Sky Survey ugriz Magnitudes
• The Palomar Transient Factory Core-Collapse Supernova Host-Galaxy Sample. I. Host-Galaxy Distribution Functions and Environment-Dependence of CCSNe
• A new measurement of the Hubble constant using Type Ia supernovae calibrated with surface brightness fluctuations
• Analysis of broad-lined Type Ic supernovae from the (intermediate) Palomar Transient Factory
• The host galaxy and late-time evolution of the Super-Luminous Supernova PTF12dam
• Hydrogen-poor Superluminous Supernovae With Late-time H-alpha Emission: Three Events From the Intermediate Palomar Transient Factory
• A meta analysis of core-collapse supernova ${}^{56}$Ni masses
• Superluminous Supernovae from the Dark Energy Survey
• Supernova Interaction with a Circumstellar Medium
• Superluminous supernova progenitors have a half-solar metallicity threshold
• Complexity in the light curves and spectra of slow-evolving superluminous supernovae
• Strong late-time circumstellar interaction in the peculiar supernova iPTF14hls
• Observational properties of extreme supernovae
• A data science platform to enable time-domain astronomy
• The host galaxy of the super-luminous SN 2010gx and limits on explosive nickel-56 production
• Gaia17biu/SN 2017egm in NGC 3191: The closest hydrogen-poor superluminous supernova to date is in a "normal", massive, metal-rich spiral galaxy
• On the early-time excess emission in hydrogen-poor superluminous supernovae
• Magnetorotational supernovae: A nucleosynthetic analysis of sophisticated 3D models
• The GRB-SLSN Connection: mis-aligned magnetars, weak jet emergence, and observational signatures
• Core-collapse, superluminous, and gamma-ray burst supernova host galaxy populations at low redshift: the importance of dwarf and starbursting galaxies
• Connecting GRBs and ULIRGs: A Sensitive, Unbiased Survey for Radio Emission from Gamma-Ray Burst Host Galaxies at 0<z<2.5
• The superluminous supernova SN 2017egm in the nearby galaxy NGC 3191: a metal-rich environment can support a typical SLSN evolution
• The Hydrogen-Poor Superluminous Supernovae from the Zwicky Transient Facility Phase-I Survey: II. Light Curve Modeling and Characterization of Undulations
• The Hydrogen-Poor Superluminous Supernovae from the Zwicky Transient Facility Phase-I Survey: I. Light Curves and Measurements
• Bumpy Declining Light Curves Are Common in Hydrogen-poor Superluminous Supernovae
• Simulations of light curves and spectra for superluminous Type Ic supernovae powered by magnetars
• Carnegie Supernova Project-II: Near-infrared Spectroscopy of Stripped-Envelope Core-Collapse Supernovae
• Luminous Supernovae: Unveiling a Population Between Superluminous and Normal Core-collapse Supernovae
• Two stripped envelope supernovae with circumstellar interaction -- but only one really shows it
• Importance of ${}^{56}$Ni production on diagnosing explosion mechanism of core-collapse supernova
• Helium in Double-Detonation Models of Type Ia Supernovae
• 2D radiation-hydrodynamic simulations of supernova ejecta with a central power source
• Circumstellar Interaction Models for the Bolometric Light Curve of SN 2017egm
• Variable thermal energy injection from magnetar spin down as a possible cause of stripped-envelope supernova light-curve bumps
• Modelling Type Ic Supernovae with TARDIS: Hidden Helium in SN1994I?
• Three-dimensional hydrodynamic simulations of supernova ejecta with a central energy source
• Towards Nebular Spectral Modeling of Magnetar-Powered Supernovae
• Helium-rich Superluminous Supernovae From the Zwicky Transient Facility
• SN 2017gci: a nearby Type I Superluminous Supernova with a bumpy tail
• Polarimetry of Hydrogen-Poor Superluminous Supernovae
• The nature of PISN candidates: clues from nebular spectra
• SN2020qlb: A hydrogen-poor superluminous supernova with well-characterized light curve undulations
• Type Ic Supernova of a 22 ${\text{M}}_{\odot }$ Progenitor
• SN2017egm: A Helium-rich Superluminous Supernova with Multiple Bumps in the Light Curves
• Supernova 2020wnt: An Atypical Superluminous Supernova with a Hidden Central Engine
• Optical polarization and spectral properties of the H-poor superluminous supernovae SN 2021bnw and SN 2021fpl
• Magnetar Flare-Driven Bumpy Declining Light Curves in Hydrogen-poor Superluminous Supernovae
• The Type I Superluminous Supernova Catalogue II: Spectroscopic Evolution in the Photospheric Phase, Velocity Measurements, and Constraints on Diversity
• Comparative Spectral Analysis of the Superluminous Supernova 2019neq
• Metallicity beats sSFR: The connection between superluminous supernova host galaxy environments and the importance of metallicity for their production
• Exploring GRBs and supernovae connection: does a superluminous hypernova population exist?