GRB 130831A: Birth and death of a magnetar at z = 0.5

M. De Pasquale, S. R. Oates, J. L. Racusin, D. A. Kann, B. Zhang, A. Pozanenko, A. A. Volnova, A. Trotter, N. Frank, A. Cucchiara, E. Troja, Boris Sbarufatti, N. R. Butler, S. Schulze, Z. Cano, M. J. Page, A. J. Castro-Tirado, J. Gorosabel, A. Lien, O. D. FoxO. Littlejohns, J. S. Bloom, J. X. Prochaska, J. A. De Diego, J. Gonzalez, M. G. Richer, C. Román-Zúñiga, A. M. Watson, N. Gehrels, H. Moseley, A. Kutyrev, S. Zane, V. Hoette, R. R. Russell, V. Rumyantsev, E. Klunko, O. Burkhonov, A. A. Breeveld, D. E. Reichart, J. B. Haislip

Research output: Contribution to journalConference article

Abstract

We present observations of GRB 130831A and its afterglow obtained with Swift, Chandra, and multiple ground-based observatories. This burst shows an uncommon drop in the X-ray light curve at about 105 s after the trigger, with a decay slope of aX ≃ 7. The standard Forward Shock (FS) model offers no explanation for such a behaviour. Instead, a model in which a newly born magnetar outflow powers the early X-ray emission is found to be more viable. After the drop, the X-ray afterglow resumes its decay with a slope characteristic of FS emission. The optical emission, on the other hand, displays no clear break across the X-ray drop and its decay is consistent with that of the late X-rays; we thus believe that the optical and late X-ray emission are both FS. We model our data to derive the kinetic energy of the ejecta and, in conjunction with the study of SN 2013fu associated with GRB 130831A, we work out for the first time the energy break-down of a supernova with a central engine into non-relativistic ejecta, relativistic ejecta that power the afterglow, and emission from the magnetar outflow.

Original languageEnglish (US)
Article number071
JournalProceedings of Science
StatePublished - Jan 1 2014
Event10th Conference on Swift, SWIFT 2014 - Rome, Italy
Duration: Dec 2 2014Dec 5 2014

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magnetars
death
ejecta
afterglows
x rays
shock
decay
slopes
light curve
light emission
supernovae
engines
bursts
observatories
breakdown
actuators
kinetic energy

All Science Journal Classification (ASJC) codes

  • General

Cite this

De Pasquale, M., Oates, S. R., Racusin, J. L., Kann, D. A., Zhang, B., Pozanenko, A., ... Haislip, J. B. (2014). GRB 130831A: Birth and death of a magnetar at z = 0.5. Proceedings of Science, [071].
De Pasquale, M. ; Oates, S. R. ; Racusin, J. L. ; Kann, D. A. ; Zhang, B. ; Pozanenko, A. ; Volnova, A. A. ; Trotter, A. ; Frank, N. ; Cucchiara, A. ; Troja, E. ; Sbarufatti, Boris ; Butler, N. R. ; Schulze, S. ; Cano, Z. ; Page, M. J. ; Castro-Tirado, A. J. ; Gorosabel, J. ; Lien, A. ; Fox, O. D. ; Littlejohns, O. ; Bloom, J. S. ; Prochaska, J. X. ; De Diego, J. A. ; Gonzalez, J. ; Richer, M. G. ; Román-Zúñiga, C. ; Watson, A. M. ; Gehrels, N. ; Moseley, H. ; Kutyrev, A. ; Zane, S. ; Hoette, V. ; Russell, R. R. ; Rumyantsev, V. ; Klunko, E. ; Burkhonov, O. ; Breeveld, A. A. ; Reichart, D. E. ; Haislip, J. B. / GRB 130831A : Birth and death of a magnetar at z = 0.5. In: Proceedings of Science. 2014.
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title = "GRB 130831A: Birth and death of a magnetar at z = 0.5",
abstract = "We present observations of GRB 130831A and its afterglow obtained with Swift, Chandra, and multiple ground-based observatories. This burst shows an uncommon drop in the X-ray light curve at about 105 s after the trigger, with a decay slope of aX ≃ 7. The standard Forward Shock (FS) model offers no explanation for such a behaviour. Instead, a model in which a newly born magnetar outflow powers the early X-ray emission is found to be more viable. After the drop, the X-ray afterglow resumes its decay with a slope characteristic of FS emission. The optical emission, on the other hand, displays no clear break across the X-ray drop and its decay is consistent with that of the late X-rays; we thus believe that the optical and late X-ray emission are both FS. We model our data to derive the kinetic energy of the ejecta and, in conjunction with the study of SN 2013fu associated with GRB 130831A, we work out for the first time the energy break-down of a supernova with a central engine into non-relativistic ejecta, relativistic ejecta that power the afterglow, and emission from the magnetar outflow.",
author = "{De Pasquale}, M. and Oates, {S. R.} and Racusin, {J. L.} and Kann, {D. A.} and B. Zhang and A. Pozanenko and Volnova, {A. A.} and A. Trotter and N. Frank and A. Cucchiara and E. Troja and Boris Sbarufatti and Butler, {N. R.} and S. Schulze and Z. Cano and Page, {M. J.} and Castro-Tirado, {A. J.} and J. Gorosabel and A. Lien and Fox, {O. D.} and O. Littlejohns and Bloom, {J. S.} and Prochaska, {J. X.} and {De Diego}, {J. A.} and J. Gonzalez and Richer, {M. G.} and C. Rom{\'a}n-Z{\'u}{\~n}iga and Watson, {A. M.} and N. Gehrels and H. Moseley and A. Kutyrev and S. Zane and V. Hoette and Russell, {R. R.} and V. Rumyantsev and E. Klunko and O. Burkhonov and Breeveld, {A. A.} and Reichart, {D. E.} and Haislip, {J. B.}",
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De Pasquale, M, Oates, SR, Racusin, JL, Kann, DA, Zhang, B, Pozanenko, A, Volnova, AA, Trotter, A, Frank, N, Cucchiara, A, Troja, E, Sbarufatti, B, Butler, NR, Schulze, S, Cano, Z, Page, MJ, Castro-Tirado, AJ, Gorosabel, J, Lien, A, Fox, OD, Littlejohns, O, Bloom, JS, Prochaska, JX, De Diego, JA, Gonzalez, J, Richer, MG, Román-Zúñiga, C, Watson, AM, Gehrels, N, Moseley, H, Kutyrev, A, Zane, S, Hoette, V, Russell, RR, Rumyantsev, V, Klunko, E, Burkhonov, O, Breeveld, AA, Reichart, DE & Haislip, JB 2014, 'GRB 130831A: Birth and death of a magnetar at z = 0.5', Proceedings of Science.

GRB 130831A : Birth and death of a magnetar at z = 0.5. / De Pasquale, M.; Oates, S. R.; Racusin, J. L.; Kann, D. A.; Zhang, B.; Pozanenko, A.; Volnova, A. A.; Trotter, A.; Frank, N.; Cucchiara, A.; Troja, E.; Sbarufatti, Boris; Butler, N. R.; Schulze, S.; Cano, Z.; Page, M. J.; Castro-Tirado, A. J.; Gorosabel, J.; Lien, A.; Fox, O. D.; Littlejohns, O.; Bloom, J. S.; Prochaska, J. X.; De Diego, J. A.; Gonzalez, J.; Richer, M. G.; Román-Zúñiga, C.; Watson, A. M.; Gehrels, N.; Moseley, H.; Kutyrev, A.; Zane, S.; Hoette, V.; Russell, R. R.; Rumyantsev, V.; Klunko, E.; Burkhonov, O.; Breeveld, A. A.; Reichart, D. E.; Haislip, J. B.

In: Proceedings of Science, 01.01.2014.

Research output: Contribution to journalConference article

TY - JOUR

T1 - GRB 130831A

T2 - Birth and death of a magnetar at z = 0.5

AU - De Pasquale, M.

AU - Oates, S. R.

AU - Racusin, J. L.

AU - Kann, D. A.

AU - Zhang, B.

AU - Pozanenko, A.

AU - Volnova, A. A.

AU - Trotter, A.

AU - Frank, N.

AU - Cucchiara, A.

AU - Troja, E.

AU - Sbarufatti, Boris

AU - Butler, N. R.

AU - Schulze, S.

AU - Cano, Z.

AU - Page, M. J.

AU - Castro-Tirado, A. J.

AU - Gorosabel, J.

AU - Lien, A.

AU - Fox, O. D.

AU - Littlejohns, O.

AU - Bloom, J. S.

AU - Prochaska, J. X.

AU - De Diego, J. A.

AU - Gonzalez, J.

AU - Richer, M. G.

AU - Román-Zúñiga, C.

AU - Watson, A. M.

AU - Gehrels, N.

AU - Moseley, H.

AU - Kutyrev, A.

AU - Zane, S.

AU - Hoette, V.

AU - Russell, R. R.

AU - Rumyantsev, V.

AU - Klunko, E.

AU - Burkhonov, O.

AU - Breeveld, A. A.

AU - Reichart, D. E.

AU - Haislip, J. B.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - We present observations of GRB 130831A and its afterglow obtained with Swift, Chandra, and multiple ground-based observatories. This burst shows an uncommon drop in the X-ray light curve at about 105 s after the trigger, with a decay slope of aX ≃ 7. The standard Forward Shock (FS) model offers no explanation for such a behaviour. Instead, a model in which a newly born magnetar outflow powers the early X-ray emission is found to be more viable. After the drop, the X-ray afterglow resumes its decay with a slope characteristic of FS emission. The optical emission, on the other hand, displays no clear break across the X-ray drop and its decay is consistent with that of the late X-rays; we thus believe that the optical and late X-ray emission are both FS. We model our data to derive the kinetic energy of the ejecta and, in conjunction with the study of SN 2013fu associated with GRB 130831A, we work out for the first time the energy break-down of a supernova with a central engine into non-relativistic ejecta, relativistic ejecta that power the afterglow, and emission from the magnetar outflow.

AB - We present observations of GRB 130831A and its afterglow obtained with Swift, Chandra, and multiple ground-based observatories. This burst shows an uncommon drop in the X-ray light curve at about 105 s after the trigger, with a decay slope of aX ≃ 7. The standard Forward Shock (FS) model offers no explanation for such a behaviour. Instead, a model in which a newly born magnetar outflow powers the early X-ray emission is found to be more viable. After the drop, the X-ray afterglow resumes its decay with a slope characteristic of FS emission. The optical emission, on the other hand, displays no clear break across the X-ray drop and its decay is consistent with that of the late X-rays; we thus believe that the optical and late X-ray emission are both FS. We model our data to derive the kinetic energy of the ejecta and, in conjunction with the study of SN 2013fu associated with GRB 130831A, we work out for the first time the energy break-down of a supernova with a central engine into non-relativistic ejecta, relativistic ejecta that power the afterglow, and emission from the magnetar outflow.

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UR - http://www.scopus.com/inward/citedby.url?scp=85017419368&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85017419368

JO - Proceedings of Science

JF - Proceedings of Science

SN - 1824-8039

M1 - 071

ER -

De Pasquale M, Oates SR, Racusin JL, Kann DA, Zhang B, Pozanenko A et al. GRB 130831A: Birth and death of a magnetar at z = 0.5. Proceedings of Science. 2014 Jan 1. 071.