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Spectroscopic Discovery of the Broad-Lined Type Ic Supernova 2010bh Associated with the Low-Redshift GRB 100316D

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arxiv 1004.2262 v1 pith:6UWOYKQK submitted 2010-04-13 astro-ph.HE astro-ph.COastro-ph.SR

Spectroscopic Discovery of the Broad-Lined Type Ic Supernova 2010bh Associated with the Low-Redshift GRB 100316D

Ryan Chornock , Edo Berger , Emily M. Levesque , Alicia M. Soderberg , Ryan J. Foley , Derek B. Fox , Anna Frebel , Joshua D. Simon
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John J. Bochanski Peter J. Challis Robert P. Kirshner Philipp Podsiadlowski Katherine Roth Robert E. Rutledge Brian P. Schmidt Scott S. Sheppard Robert A. Simcoe
This is my paper
classification astro-ph.HE astro-ph.COastro-ph.SR
keywords explosionassociatedbroad-linedlow-redshiftsupernovadaysdiscoveryfeatures
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present the spectroscopic discovery of a broad-lined Type Ic supernova (SN 2010bh) associated with the nearby long-duration gamma-ray burst (GRB) 100316D. At z = 0.0593, this is the third-nearest GRB-SN. Nightly optical spectra obtained with the Magellan telescopes during the first week after explosion reveal the gradual emergence of very broad spectral features superposed on a blue continuum. The supernova features are typical of broad-lined SNe Ic and are generally consistent with previous supernovae associated with low-redshift GRBs. However, the inferred velocities of SN 2010bh at 21 days after explosion are a factor of ~2 times larger than those of the prototypical SN 1998bw at similar epochs, with v ~ 26,000 km/s, indicating a larger explosion energy or a different ejecta structure. A near-infrared spectrum taken 13.8 days after explosion shows no strong evidence for He I at 1.083 microns, implying that the progenitor was largely stripped of its helium envelope. The host galaxy is of low luminosity (M_R ~ -18.5 mag) and low metallicity (Z < 0.4 Z_solar), similar to the hosts of other low-redshift GRB-SNe.

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Cited by 7 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. A Multi-Wavelength View of the First Type Ic-BL Supernova with an Einstein Probe X-ray Shock Breakout

    astro-ph.HE 2026-06 unverdicted novelty 7.0

    First definitive X-ray shock breakout from a Type Ic-BL supernova, with radio constraints and a rate calculation implying most such supernovae produce fainter signals than observed here.

  2. EP260321a/SN 2026gzf: The Faintest Shock Breakout Associated with a Broad-Lined Supernova

    astro-ph.HE 2026-06 unverdicted novelty 7.0

    EP260321a is the faintest observed shock breakout tied to a broad-lined Type Ic supernova, interpreted as a choked weak outflow from a stripped star.

  3. Early Multiwavelength Observations of AT 2026fgk: The Luminous Afterglow to Sub-luminous GRB 260310A, Identified Independently of a Gamma-ray Trigger

    astro-ph.HE 2026-06 accept novelty 5.0

    First blind optical identification of a z=0.153 sub-luminous GRB afterglow with Ic-BL SN, yielding a volumetric rate consistent with on-axis high-luminosity long GRBs.

  4. EP260321a/SN 2026gzf: The Faintest Shock Breakout Associated with a Broad-Lined Supernova

    astro-ph.HE 2026-06 unverdicted novelty 4.0

    EP260321a is identified as the faintest shock breakout X-ray transient associated with broad-lined Ic supernova SN 2026gzf, interpreted as originating from a mildly relativistic weak outflow choked inside the progenitor star.

  5. GRB 260310A/SN 2026fgk: Photometric and Spectroscopic Evolution of a Nearby GRB-Supernova and an Exceptionally Bright Afterglow at z=0.153

    astro-ph.HE 2026-05 unverdicted novelty 4.0

    GRB 260310A/SN 2026fgk is a spectroscopically confirmed Type Ic-BL supernova at z=0.153 with 0.4-0.6 times the luminosity of SN 1998bw, nickel mass 0.4-0.5 solar masses, ejected mass 4-6 solar masses, kinetic energy (...

  6. GRB 260310A/SN 2026fgk: Photometric and Spectroscopic Evolution of a Nearby GRB-Supernova and an Exceptionally Bright Afterglow at z=0.153

    astro-ph.HE 2026-05 unverdicted novelty 4.0

    Detailed photometric, spectroscopic, and modeling study of a low-redshift GRB-SN yielding nickel mass 0.4-0.5 solar masses, ejected mass 4-6 solar masses, and evidence for large-offset explosion in sub-solar metallicity gas.

  7. EP250827b/SN 2025wkm: An X-ray Flash-Supernova Powered by a Central Engine and Circumstellar Interaction

    astro-ph.HE 2025-12 conditional novelty 4.0

    EP250827b/SN 2025wkm is an X-ray flash supernova at z=0.1194 powered by a long-lived magnetar and disk winds interacting with extended circumstellar medium, without an on-axis relativistic jet.