Spatially Resolved Molecular Gas Properties of Host Galaxy of Type I Superluminous Supernova SN 2017egm

Abstract

We present the results of CO(1-0) observations of the host galaxy of a Type I superluminous supernova (SLSN-I), SN2017egm, one of the closest SLSNe-I at z = 0.03063, by using the Atacama Large Millimeter/submillimeter Array. The molecular gas mass of the host galaxy is $M_{\mathrm{gas}}=(4.8\pm 0.3)\times 10^9$ $M_{\odot }$, placing it on the sequence of normal star-forming galaxies in an $M_{\mathrm{gas}}$-star-formation rate (SFR) plane. The molecular hydrogen column density at the location of SN2017egm is higher than that of the Type II SN PTF10bgl, which is also located in the same host galaxy, and those of other Type II and Ia SNe located in different galaxies, suggesting that SLSNe-I have a preference for a dense molecular gas environment. On the other hand, the column density at the location of SN2017egm is comparable to those of Type Ibc SNe. The surface densities of molecular gas and the SFR at the location of SN2017egm are consistent with those of spatially resolved local star-forming galaxies and follow the Schmidt-Kennicutt relation. These facts suggest that SLSNe-I can occur in environments with the same star-formation mechanism as in normal star-forming galaxies.

arXiv comment6 pages, 5 figures, accepted for publication in PASJ

References in corpus (37)

• Planck 2015 results. XIII. Cosmological parameters
• Galactic Stellar and Substellar Initial Mass Function
• Star Formation in Galaxies Along the Hubble Sequence
• The Global Schmidt Law in Star Forming Galaxies
• The CO-to-H2 Conversion Factor
• [O III]/[N II] as an Abundance Indicator at High Redshift
• Metallicity Calibrations and the Mass-Metallicity Relation for Star-Forming Galaxies
• PHIBSS: molecular gas content and scaling relations in z~1-3 normal star forming galaxies
• Molecular Gas at High Redshift
• Metallicities of 0.3<z<1.0 Galaxies in the GOODS-North Field
• Combined CO & Dust Scaling Relations of Depletion Time and Molecular Gas Fractions with Cosmic Time, Specific Star Formation Rate and Stellar Mass
• Luminous Supernovae
• The O3N2 and N2 abundance indicators revisited: improved calibrations based on CALIFA and Te-based literature data
• Hydrogen-poor superluminous stellar explosions
• xCOLD GASS: the complete IRAM-30m legacy survey of molecular gas for galaxy evolution studies
• COLD GASS, an IRAM legacy survey of molecular gas in massive galaxies: I. Relations between H2, HI, stellar content and structural properties
• The Thirteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey MApping Nearby Galaxies at Apache Point Observatory
• A survey of molecular gas in luminous sub-millimetre galaxies
• Extremely Inefficient Star Formation in the Outer Disks of Nearby Galaxies
• Gas metallicity diagnostics in star-forming galaxies
• The Metallicity Dependence of the CO-to-H${}_2$ Conversion Factor from Observations of Local Group Galaxies
• The metallicity dependence of the CO {\rightarrow} H_2 conversion factor in z>1 star forming galaxies
• SN 2005ap: A Most Brilliant Explosion
• Core-Collapse Supernovae from the Palomar Transient Factory: Indications for a Different Population in Dwarf Galaxies
• Core-Collapse Supernovae and Host Galaxy Stellar Populations
• Super-luminous supernovae at redshifts of 2.05 and 3.90
• ALLSMOG: an APEX Low-redshift Legacy Survey for MOlecular Gas. I - molecular gas scaling relations, and the effect of the CO/H2 conversion factor
• Gaia17biu/SN 2017egm in NGC 3191: The closest hydrogen-poor superluminous supernova to date is in a "normal", massive, metal-rich spiral galaxy
• The superluminous supernova SN 2017egm in the nearby galaxy NGC 3191: a metal-rich environment can support a typical SLSN evolution
• Spatially resolved MaNGA observations of the host galaxy of superluminous supernova 2017egm
• Molecular gas at supernova local environments unveiled by EDGE
• Probing the low-redshift star formation rate as a function of metallicity through the local environments of type II supernovae
• Properties of the Interstellar Medium in Star-Forming Galaxies at z~1.4 revealed with ALMA
• ALMA observations of molecular gas in the host galaxy of AT2018cow
• ALMA CO Observations of the Host Galaxies of Long-duration Gamma-ray Bursts. I: Molecular Gas Scaling Relations
• A superluminous supernova in high surface density molecular gas within the bar of a metal-rich galaxy
• Relativistic supernova 2009bb exploded close to an atomic gas cloud

Cited by in corpus (5)

• Photospheric Velocity Gradients and Ejecta Masses of Hydrogen-poor Superluminous Supernovae -- Proxies for Distinguishing between Fast and Slow Events
• ALMA Host galaxy observation of the off-axis Gamma-Ray Burst XRF020903
• Diverse Properties of Molecular Gas in the Host Galaxies of Fast Radio Bursts
• ZTF-observed late-time signals of pre-ZTF transients
• A VLA Survey of Late-time Radio Emission from Superluminous Supernovae and the Host Galaxies