Reverse Shock Emission Revealed in Early Photometry in the Candidate Short GRB 180418A
Abstract
Here, we present observations of the possible short GRB 180418A in γ-rays, X-rays, and in the optical. Early optical photometry with the TAROT and RATIR instruments shows a bright peak (≈14.2 AB mag) between T + 28 and T + 90 s that we interpret as the signature of a reverse shock. Later observations can be modeled by a standard forward shock model and show no evidence of a jet break, allowing us to constrain the jet collimation to θ j > 7°. Using deep late-time optical observations, we place an upper limit of r > 24 AB mag on any underlying host galaxy. The detection of the afterglow in the Swift UV filters constrains the GRB redshift to z < 1.3 and places an upper bound on the γ-ray isotropic equivalent energy E γ,iso < 3 ×1051 erg. The properties of this GRB (e.g., duration, hardness ratio, energy, and environment) lie at the intersection between short and long bursts, and we cannot conclusively identify its type. We estimate that the probability that it is drawn from the population of short GRBs is 10%-30%.
- Authors:
-
- Univ. Nacional Autonoma de Mexico (UNAM), Mexico City (Mexico)
- Univ. of Maryland, College Park, MD (United States); NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
- Inst. de Recherce en Astronophysique et Panetologie, Toulous (France)
- Arizona State Univ., Tempe, AZ (United States)
- Univ. of Alabama, Huntsville, AL (United States)
- Chinese Academy of Science (CAS), Beijing (China)
- Univ. of Maryland, College Park, MD (United States)
- ARTEMIS, Nice (France)
- NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
- Univ. of California, Santa Cruz, CA (United States)
- Unidad Academica en Ensenada (Mexico)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); National Aeronautics and Space Administration (NASA); Consejo Nacional de Ciencia y Tecnología in Mexico (CONACyT); UNAM PA-PIIT; Universidad Nacional Autonoma de Mexico
- OSTI Identifier:
- 1616087
- Grant/Contract Number:
- AC02-05CH11231; NNX09AH71G; NNX09AT02G; NNX10AI27G; NNX12AE66G; INFR-2009-01-122785; CB-2008-101958; IG100414; IA102917; IA102019; CN 09-283
- Resource Type:
- Accepted Manuscript
- Journal Name:
- The Astrophysical Journal (Online)
- Additional Journal Information:
- Journal Name: The Astrophysical Journal (Online); Journal Volume: 881; Journal Issue: 1; Journal ID: ISSN 1538-4357
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; gamma-ray burst
Citation Formats
Becerra, R. L., Dichiara, S., Watson, A. M., Troja, E., Fraija, N., Klotz, A., Butler, N. R., Lee, W. H., Veres, P., Turpin, D., Bloom, J. S., Boer, M., González, J. J., Kutyrev, A. S., Prochaska, J. X., Ramirez-Ruiz, E., and Richer, M. G. Reverse Shock Emission Revealed in Early Photometry in the Candidate Short GRB 180418A. United States: N. p., 2019.
Web. doi:10.3847/1538-4357/ab275b.
Becerra, R. L., Dichiara, S., Watson, A. M., Troja, E., Fraija, N., Klotz, A., Butler, N. R., Lee, W. H., Veres, P., Turpin, D., Bloom, J. S., Boer, M., González, J. J., Kutyrev, A. S., Prochaska, J. X., Ramirez-Ruiz, E., & Richer, M. G. Reverse Shock Emission Revealed in Early Photometry in the Candidate Short GRB 180418A. United States. https://doi.org/10.3847/1538-4357/ab275b
Becerra, R. L., Dichiara, S., Watson, A. M., Troja, E., Fraija, N., Klotz, A., Butler, N. R., Lee, W. H., Veres, P., Turpin, D., Bloom, J. S., Boer, M., González, J. J., Kutyrev, A. S., Prochaska, J. X., Ramirez-Ruiz, E., and Richer, M. G. Wed .
"Reverse Shock Emission Revealed in Early Photometry in the Candidate Short GRB 180418A". United States. https://doi.org/10.3847/1538-4357/ab275b. https://www.osti.gov/servlets/purl/1616087.
@article{osti_1616087,
title = {Reverse Shock Emission Revealed in Early Photometry in the Candidate Short GRB 180418A},
author = {Becerra, R. L. and Dichiara, S. and Watson, A. M. and Troja, E. and Fraija, N. and Klotz, A. and Butler, N. R. and Lee, W. H. and Veres, P. and Turpin, D. and Bloom, J. S. and Boer, M. and González, J. J. and Kutyrev, A. S. and Prochaska, J. X. and Ramirez-Ruiz, E. and Richer, M. G.},
abstractNote = {Here, we present observations of the possible short GRB 180418A in γ-rays, X-rays, and in the optical. Early optical photometry with the TAROT and RATIR instruments shows a bright peak (≈14.2 AB mag) between T + 28 and T + 90 s that we interpret as the signature of a reverse shock. Later observations can be modeled by a standard forward shock model and show no evidence of a jet break, allowing us to constrain the jet collimation to θ j > 7°. Using deep late-time optical observations, we place an upper limit of r > 24 AB mag on any underlying host galaxy. The detection of the afterglow in the Swift UV filters constrains the GRB redshift to z < 1.3 and places an upper bound on the γ-ray isotropic equivalent energy E γ,iso < 3 ×1051 erg. The properties of this GRB (e.g., duration, hardness ratio, energy, and environment) lie at the intersection between short and long bursts, and we cannot conclusively identify its type. We estimate that the probability that it is drawn from the population of short GRBs is 10%-30%.},
doi = {10.3847/1538-4357/ab275b},
journal = {The Astrophysical Journal (Online)},
number = 1,
volume = 881,
place = {United States},
year = {2019},
month = {8}
}
Web of Science
Figures / Tables:

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The Optical Flare and Afterglow Light Curve of GRB 050904 at Redshift z = 6.29
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The Observed Offset Distribution of Gamma-Ray Bursts from Their Host Galaxies: A Robust Clue to the Nature of the Progenitors
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journal, January 2009
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A study of the prompt and afterglow emission of the short GRB 061201
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- College Park : American Physical Society
Different progenitors of short hard gamma-ray bursts
text, January 2007
- Troja, Eleonora; King, Andrew R.; O'Brien, Paul T.
- arXiv
The Afterglows of Swift-era Gamma-Ray Bursts. I. Comparing pre-Swift and Swift era Long/Soft (Type II) GRB Optical Afterglows
text, January 2007
- Kann, D. A.; Klose, S.; Zhang, B.
- arXiv
Multiwavelength analysis of the intriguing GRB 061126: the reverse shock scenario and magnetization
text, January 2008
- Gomboc, A.; Kobayashi, S.; Guidorzi, C.
- arXiv
Measuring the cosmological parameters with the Ep,i-Eiso correlation of Gamma-Ray Bursts
text, January 2008
- Amati, L.; Guidorzi, C.; Frontera, F.
- arXiv
Optical and gamma-ray emissions from internal forward-reverse shocks: application to GRB 080319B?
text, January 2008
- Yu, Y. W.; Wang, X. Y.; Dai, Z. G.
- arXiv
A multiwavelength study of Swift GRB 060111B constraining the origin of its prompt optical emission
text, January 2009
- Stratta, G.; Pozanenko, A.; Atteia, J-L.
- arXiv
Swift and Fermi observations of the early afterglow of the short Gamma-Ray Burst 090510
text, January 2009
- De Pasquale, M.; Schady, P.; Kuin, N. P. M.
- arXiv
A snapshot on galaxy evolution occurring in the Great Wall: the role of Nurture at z=0
text, January 2010
- Gavazzi, Giuseppe; Fumagalli, Mattia; Cucciati, Olga
- arXiv
Accurate evolutions of inspiralling and magnetized neutron-stars: equal-mass binaries
text, January 2010
- Giacomazzo, Bruno; Rezzolla, Luciano; Baiotti, Luca
- arXiv
Ten per cent polarized optical emission from GRB 090102
text, January 2010
- Steele, I. A.; Mundell, C. G.; Smith, R. J.
- arXiv
Fermi/GBM observations of the ultra-long GRB 091024: A burst with an optical flash
text, January 2011
- Gruber, D.; Krühler, T.; Foley, S.
- arXiv
GRB 090426: Discovery of a jet break in a short burst afterglow
text, January 2011
- Guelbenzu, A. Nicuesa; Klose, S.; Rossi, A.
- arXiv
A new method for estimating the bolometric properties of Ibc SNe
text, January 2013
- Cano, Zach
- arXiv
A Complete Reference of the Analytical Synchrotron External Shock Models of Gamma-Ray Bursts
text, January 2013
- Gao, He; Lei, Wei-Hua; Zou, Yuan-Chuan
- arXiv
A Comprehensive Radio View of the Extremely Bright Gamma-Ray Burst 130427A
text, January 2014
- van der Horst, A. J.; Paragi, Z.; de Bruyn, A. G.
- arXiv
The Physics of Gamma-Ray Bursts and Relativistic Jets
text, January 2014
- Kumar, Pawan; Zhang, Bing
- arXiv
A detailed study of the optical attenuation of gamma-ray bursts in the Swift era
text, January 2014
- Littlejohns, O. M.; Butler, N. R.; Cucchiara, A.
- arXiv
Reverse Shock Emission in Gamma-ray Bursts Revisited
text, January 2015
- Gao, He; Mészáros, Peter
- arXiv
Modeling the early multiwavelength emission in GRB130427A
text, January 2016
- Fraija, Nissim; Lee, William H.; Veres, Péter
- arXiv
Theoretical Description Of GRB 160625B with Wind-to-ISM Transition and Implications for a Magnetized Outflow
text, January 2017
- Fraija, N.; Veres, P.; Zhang, B. B.
- arXiv
Statistical Distributions of Optical Flares from Gamma-Ray Bursts
text, January 2017
- Yi, Shuang-Xi; Yu, Hai; Wang, F. Y.
- arXiv
Modeling the high-energy emission in GRB 110721A and implications on the early multiwavelength and polarimetric observations
text, January 2017
- Fraija, N.; Lee, W. H.; Araya, M.
- arXiv
GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
text, January 2017
- Collaboration, The LIGO Scientific; Collaboration, The Virgo
- arXiv
The short GRB 170817A: Modelling the off-axis emission and implications on the ejecta magnetization
text, January 2017
- Fraija, N.; De Colle, F.; Veres, P.
- arXiv
The Observed Offset Distribution of Gamma-Ray Bursts from Their Host Galaxies: A Robust Clue to the Nature of the Progenitors
text, January 2000
- Bloom, J. S.; Kulkarni, S. R.; Djorgovski, S. G.
- arXiv
Was GRB 990123 a unique optical flash?
text, January 2001
- Soderberg, Alicia M.; Ramirez-Ruiz, Enrico
- arXiv
The afterglow of GRB021211: Another case of reverse shock emission
text, January 2003
- Wei, D. M.
- arXiv
Afterglow Light Curves from Impulsive Relativistic Jets with an Unconventional Structure
text, January 2005
- Granot, Jonathan
- arXiv
Late internal shock model for bright X-ray flares in Gamma-ray Burst afterglows and GRB 011121
text, January 2005
- Fan, Y. Z.; Wei, D. M.
- arXiv
Jet Breaks in Short Gamma-Ray Bursts. II: The Collimated Afterglow of GRB 051221A
text, January 2006
- Burrows, David N.; Grupe, Dirk; Capalbi, Milvia
- arXiv
A New Population of High Redshift Short-Duration Gamma-Ray Bursts
text, January 2006
- Berger, E.; Fox, D. B.; Price, P. A.
- arXiv
The Progenitors of Short Gamma-Ray Bursts
text, January 2007
- Lee, William H.; Ramirez-Ruiz, Enrico
- arXiv
The Troublesome Broadband Evolution of GRB 061126: Does a Grey Burst Imply Grey Dust?
text, January 2007
- Perley, D. A.; Bloom, J. S.; Butler, N. R.
- arXiv
Gamma-Ray Bursts as the Death Throes of Massive Binary Stars
text, January 1992
- Narayan, Ramesh; Paczyński, Bohdan; Piran, Tsvi
- arXiv
Counts and Colors of Faint Galaxies in the U and R Bands
text, January 1997
- Hogg, David W.; Pahre, Michael A.; McCarthy, James K.
- arXiv
Spectra and Light Curves of Gamma-Ray Burst Afterglows
text, January 1997
- Sari, Re'em; Piran, Tsvi; Narayan, Ramesh
- arXiv
Predictions for The Very Early Afterglow and The Optical Flash
text, January 1999
- Sari, Re'em; Piran, Tsvi
- arXiv
GRB990123, The Optical Flash and The Fireball Model
text, January 1999
- Sari, Re'em; Piran, Tsvi
- arXiv
Connection Between Energy-dependent Lags And Peak Luminosity In Gamma-ray Bursts
text, January 1999
- Norris, J. P.; Marani, G. F.; Bonnell, J. T.
- arXiv
Works referencing / citing this record:
Short GRB 160821B: A Reverse Shock, a Refreshed Shock, and a Well-sampled Kilonova
journal, September 2019
- Lamb, G. P.; Tanvir, N. R.; Levan, A. J.
- The Astrophysical Journal, Vol. 883, Issue 1
GRB 180620A: Evidence for Late-time Energy Injection
journal, December 2019
- Becerra, R. L.; De Colle, F.; Watson, A. M.
- The Astrophysical Journal, Vol. 887, Issue 2
Short GRB 160821B: a reverse shock, a refreshed shock, and a well-sampled kilonova
text, January 2019
- Lamb, G. P.; Tanvir, N. R.; Levan, A. J.
- arXiv
GRB 180620A: Evidence for late-time energy injection
text, January 2019
- Becerra, Rosa L.; De Colle, Fabio; Watson, Alan M.
- arXiv
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