Dust in the wind: the role of recent mass loss in long gamma-ray bursts

Abstract

We study the late-time (t>0.5 days) X-ray afterglows of nearby (z<0.5) long Gamma-Ray Bursts (GRB) with Swift and identify a population of explosions with slowly decaying, super-soft (photon index Gamma_x>3) X-ray emission that is inconsistent with forward shock synchrotron radiation associated with the afterglow. These explosions also show larger-than-average intrinsic absorption (NH_x,i >6d21 cm-2) and prompt gamma-ray emission with extremely long duration (T_90>1000 s). Chance association of these three rare properties (i.e. large NH_x,i, super-soft Gamma_x and extreme duration) in the same class of explosions is statistically unlikely. We associate these properties with the turbulent mass-loss history of the progenitor star that enriched and shaped the circum-burst medium. We identify a natural connection between NH_x,i Gamma_x and T_90 in these sources by suggesting that the late-time super-soft X-rays originate from radiation reprocessed by material lost to the environment by the stellar progenitor before exploding, (either in the form of a dust echo or as reprocessed radiation from a long-lived GRB remnant), and that the interaction of the explosion's shock/jet with the complex medium is the source of the extremely long prompt emission. However, current observations do not allow us to exclude the possibility that super-soft X-ray emitters originate from peculiar stellar progenitors with large radii that only form in very dusty environments.

arXiv comment6 pages, Submitted to ApJ

References in corpus (55)

• The Leiden/Argentine/Bonn (LAB) Survey of Galactic HI: Final data release of the combined LDS and IAR surveys with improved stray-radiation corrections
• Collapsars - Gamma-Ray Bursts and Explosions in "Failed Supernovae"
• Binary interaction dominates the evolution of massive stars
• Methods and results of an automatic analysis of a complete sample of Swift-XRT observations of GRBs
• Mass-loss predictions for O and B stars as a function of metallicity
• Mass Loss: Its Effect on the Evolution and Fate of High-Mass Stars
• Pre-Supernova Evolution of Massive Single and Binary Stars
• Long gamma-ray bursts and core-collapse supernovae have different environments
• The shock break-out of GRB 060218/SN 2006aj
• Supernovae, Jets, and Collapsars
• An optical supernova associated with the X-ray flash XRF 060218
• Relativistic ejecta from XRF 060218 and the rate of cosmic explosions
• Low-Resolution Spectroscopy of Gamma-ray Burst Optical Afterglows: Biases in the Swift Sample and Characterization of the Absorbers
• A Wolf-Rayet-like progenitor of supernova SN 2013cu from spectral observations of a wind
• The Second Swift BAT Gamma-Ray Burst Catalog
• A panchromatic view of the restless SN2009ip reveals the explosive ejection of a massive star envelope
• Precursors prior to Type IIn supernova explosions are common: precursor rates, properties, and correlations
• Late-time Radio Observations of 68 Type Ibc Supernovae: Strong Constraints on Off-Axis Gamma-ray Bursts
• An outburst from a massive star 40 days before a supernova explosion
• Discovery of the nearby long, soft GRB 100316D with an associated supernova
• Relativistic shock breakouts - a variety of gamma-ray flares: from low luminosity gamma-ray bursts to type Ia supernovae
• The ultra-long Gamma-Ray Burst 111209A: the collapse of a blue supergiant?
• The Swift Burst Analyser I: BAT and XRT spectral and flux evolution of Gamma Ray Bursts
• The prompt-afterglow connection in Gamma-Ray Bursts: a comprehensive statistical analysis of Swift X-ray light-curves
• Are low luminosity GRBs generated by relativistic jets?
• The Radio and X-ray Luminous SN 2003bg and the Circumstellar Density Variations Around Radio Supernovae
• Long Gamma-Ray Transients from Collapsars
• A Radio Survey of Type Ib and Ic Supernovae: Searching for Engine Driven Supernovae
• GRB 130427A: a Nearby Ordinary Monster
• The Evolution of Supernovae in Circumstellar Wind Bubbles II: Case of a Wolf-Rayet star
• No X-rays from the very nearby Type Ia SN2014J: constraints on its environment
• Prompt and Afterglow Emission Properties of Gamma-Ray Bursts with Spectroscopically Identified Supernovae
• The signature of the central engine in the weakest relativistic explosions: GRB100316D
• Early-time spectra of supernovae and their precursor winds: the luminous blue variable/yellow hypergiant progenitor of SN 2013cu
• A multi-wavelength investigation of the radio-loud supernova PTF11qcj and its circumstellar environment
• Chandra Observations of the X-ray Environs of SN 1998bw/GRB 980425
• GRB 130925A: an ultra-long Gamma Ray Burst with a dust-echo afterglow, and implications for the origin of the ultra-long GRBs
• A hot cocoon in the ultralong GRB 130925A: hints of a PopIII-like progenitor in a low density wind environment
• Radio Observations Reveal Unusual Circumstellar Environments for Some Type Ibc Supernova Progenitors
• The Fast Evolution of SN 2010bh associated with XRF 100316D
• Discovery and redshift of an optical afterglow in 71 square degrees: iPTF13bxl and GRB 130702A
• The Interpretation and Implication of the Afterglow of GRB 060218
• Dwarf Galaxy Formation with H2-Regulated Star Formation: II. Gas-Rich Dark Galaxies at Redshift 2.5
• GRB 090417B and its Host Galaxy: A Step Towards an Understanding of Optically-Dark Gamma-Ray Bursts
• The X-ray afterglow of GRB030329
• The afterglow of a relativistic shock breakout and low-luminosity GRBs
• SN 2008D: A Wolf-Rayet explosion through a thick wind
• Radio limits on off-axis GRB afterglows and VLBI observations of SN 2003gk
• HST Observations of the Wolf-Rayet Nebula NGC 6888
• GROND coverage of the main peak of Gamma-Ray Burst 130925A
• Are gamma-ray bursts the same at high redshift and low redshift?
• Echo Emission From Dust Scattering and X-Ray Afterglows of Gamma-Ray Bursts
• X-ray Spectral Components in the Afterglow of GRB 130925A
• The Dust Scattering Model Can Not Explain The Shallow X-ray Decay in GRB Afterglows
• Spectral Softening in X-ray Afterglow of GRB 130925A as Predicted by Dust Scattering Model

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