Discovery of a new soft gamma repeater, SGR J1833-0832

E. Göʇüş; G. Cusumano; A. J. Levan; C. Kouveliotou; T. Sakamoto; S. D. Barthelmy; S. Campana; Y. Kaneko; B. W. Stappers; A. De Ugarte Postigo; T. Strohmayer; D. M. Palmer; J. Gelbord; D. N. Burrows; A. J. Van Der Horst; T. Muñoz-Darias; N. Gehrels; J. W.T. Hessels; A. P. Kamble; S. Wachter; K. Wiersema; R. A.M.J. Wijers; P. M. Woods

doi:10.1088/0004-637X/718/1/331

Discovery of a new soft gamma repeater, SGR J1833-0832

E. Göʇüş, G. Cusumano, A. J. Levan, C. Kouveliotou, T. Sakamoto, S. D. Barthelmy, S. Campana, Y. Kaneko, B. W. Stappers, A. De Ugarte Postigo, T. Strohmayer, D. M. Palmer, J. Gelbord, D. N. Burrows, A. J. Van Der Horst, T. Muñoz-Darias, N. Gehrels, J. W.T. Hessels, A. P. Kamble, S. WachterK. Wiersema, R. A.M.J. Wijers, P. M. Woods

Astronomy & Astrophysics

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Abstract

On 2010 March 19, the Swift/Burst Alert Telescope triggered on a short burst with temporal and spectral characteristics similar to those of soft gamma repeater (SGR) bursts. The source location, however, did not coincide with any known SGR. Subsequent observations of the source error box with the Swift/X-Ray Telescope and the Rossi X-ray Timing Explorer led to the discovery of a new X-ray source with a spin period of 7.56 s, confirming SGR J1833-0832 as a new magnetar. Based on our detailed temporal and spectral analyses, we show that the new SGR is rapidly spinning down (4 × 10^-12 ss^-1) and find an inferred dipole magnetic field of 1.8 × 10¹⁴ G. We also show that the X-ray flux of SGR J1833-0832 remained constant for approximately 20 days following the burst and then started to decline. We derived an accurate location of the source with the Chandra X-ray Observatory and we searched for a counterpart in deep optical and infrared observations of SGR J1833-0832, and for radio pulsed emission with the Westerbork Radio Synthesis Telescope. Finally, we compare the spectral and temporal properties of the source to other magnetar candidates.

Original language	English (US)
Pages (from-to)	331-339
Number of pages	9
Journal	Astrophysical Journal
Volume	718
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/718/1/331
State	Published - Jul 20 2010

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/0004-637X/718/1/331

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Göʇüş, E., Cusumano, G., Levan, A. J., Kouveliotou, C., Sakamoto, T., Barthelmy, S. D., Campana, S., Kaneko, Y., Stappers, B. W., De Ugarte Postigo, A., Strohmayer, T., Palmer, D. M., Gelbord, J., Burrows, D. N., Van Der Horst, A. J., Muñoz-Darias, T., Gehrels, N., Hessels, J. W. T., Kamble, A. P., ... Woods, P. M. (2010). Discovery of a new soft gamma repeater, SGR J1833-0832. Astrophysical Journal, 718(1), 331-339. https://doi.org/10.1088/0004-637X/718/1/331

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title = "Discovery of a new soft gamma repeater, SGR J1833-0832",

abstract = "On 2010 March 19, the Swift/Burst Alert Telescope triggered on a short burst with temporal and spectral characteristics similar to those of soft gamma repeater (SGR) bursts. The source location, however, did not coincide with any known SGR. Subsequent observations of the source error box with the Swift/X-Ray Telescope and the Rossi X-ray Timing Explorer led to the discovery of a new X-ray source with a spin period of 7.56 s, confirming SGR J1833-0832 as a new magnetar. Based on our detailed temporal and spectral analyses, we show that the new SGR is rapidly spinning down (4 × 10-12 ss-1) and find an inferred dipole magnetic field of 1.8 × 1014 G. We also show that the X-ray flux of SGR J1833-0832 remained constant for approximately 20 days following the burst and then started to decline. We derived an accurate location of the source with the Chandra X-ray Observatory and we searched for a counterpart in deep optical and infrared observations of SGR J1833-0832, and for radio pulsed emission with the Westerbork Radio Synthesis Telescope. Finally, we compare the spectral and temporal properties of the source to other magnetar candidates.",

author = "E. G{\"o}ʇ{\"u}{\c s} and G. Cusumano and Levan, {A. J.} and C. Kouveliotou and T. Sakamoto and Barthelmy, {S. D.} and S. Campana and Y. Kaneko and Stappers, {B. W.} and {De Ugarte Postigo}, A. and T. Strohmayer and Palmer, {D. M.} and J. Gelbord and Burrows, {D. N.} and {Van Der Horst}, {A. J.} and T. Mu{\~n}oz-Darias and N. Gehrels and Hessels, {J. W.T.} and Kamble, {A. P.} and S. Wachter and K. Wiersema and Wijers, {R. A.M.J.} and Woods, {P. M.}",

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Göʇüş, E, Cusumano, G, Levan, AJ, Kouveliotou, C, Sakamoto, T, Barthelmy, SD, Campana, S, Kaneko, Y, Stappers, BW, De Ugarte Postigo, A, Strohmayer, T, Palmer, DM, Gelbord, J, Burrows, DN, Van Der Horst, AJ, Muñoz-Darias, T, Gehrels, N, Hessels, JWT, Kamble, AP, Wachter, S, Wiersema, K, Wijers, RAMJ & Woods, PM 2010, 'Discovery of a new soft gamma repeater, SGR J1833-0832', Astrophysical Journal, vol. 718, no. 1, pp. 331-339. https://doi.org/10.1088/0004-637X/718/1/331

TY - JOUR

T1 - Discovery of a new soft gamma repeater, SGR J1833-0832

AU - Göʇüş, E.

AU - Cusumano, G.

AU - Levan, A. J.

AU - Kouveliotou, C.

AU - Sakamoto, T.

AU - Barthelmy, S. D.

AU - Campana, S.

AU - Kaneko, Y.

AU - Stappers, B. W.

AU - De Ugarte Postigo, A.

AU - Strohmayer, T.

AU - Palmer, D. M.

AU - Gelbord, J.

AU - Burrows, D. N.

AU - Van Der Horst, A. J.

AU - Muñoz-Darias, T.

AU - Gehrels, N.

AU - Hessels, J. W.T.

AU - Kamble, A. P.

AU - Wachter, S.

AU - Wiersema, K.

AU - Wijers, R. A.M.J.

AU - Woods, P. M.

PY - 2010/7/20

Y1 - 2010/7/20

N2 - On 2010 March 19, the Swift/Burst Alert Telescope triggered on a short burst with temporal and spectral characteristics similar to those of soft gamma repeater (SGR) bursts. The source location, however, did not coincide with any known SGR. Subsequent observations of the source error box with the Swift/X-Ray Telescope and the Rossi X-ray Timing Explorer led to the discovery of a new X-ray source with a spin period of 7.56 s, confirming SGR J1833-0832 as a new magnetar. Based on our detailed temporal and spectral analyses, we show that the new SGR is rapidly spinning down (4 × 10-12 ss-1) and find an inferred dipole magnetic field of 1.8 × 1014 G. We also show that the X-ray flux of SGR J1833-0832 remained constant for approximately 20 days following the burst and then started to decline. We derived an accurate location of the source with the Chandra X-ray Observatory and we searched for a counterpart in deep optical and infrared observations of SGR J1833-0832, and for radio pulsed emission with the Westerbork Radio Synthesis Telescope. Finally, we compare the spectral and temporal properties of the source to other magnetar candidates.

AB - On 2010 March 19, the Swift/Burst Alert Telescope triggered on a short burst with temporal and spectral characteristics similar to those of soft gamma repeater (SGR) bursts. The source location, however, did not coincide with any known SGR. Subsequent observations of the source error box with the Swift/X-Ray Telescope and the Rossi X-ray Timing Explorer led to the discovery of a new X-ray source with a spin period of 7.56 s, confirming SGR J1833-0832 as a new magnetar. Based on our detailed temporal and spectral analyses, we show that the new SGR is rapidly spinning down (4 × 10-12 ss-1) and find an inferred dipole magnetic field of 1.8 × 1014 G. We also show that the X-ray flux of SGR J1833-0832 remained constant for approximately 20 days following the burst and then started to decline. We derived an accurate location of the source with the Chandra X-ray Observatory and we searched for a counterpart in deep optical and infrared observations of SGR J1833-0832, and for radio pulsed emission with the Westerbork Radio Synthesis Telescope. Finally, we compare the spectral and temporal properties of the source to other magnetar candidates.

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EP - 339

JO - Astrophysical Journal

JF - Astrophysical Journal

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Discovery of a new soft gamma repeater, SGR J1833-0832

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