The swift discovery of X-ray afterglows accompanying short bursts from SGR 1900+14

Y. E. Nakagawa; T. Sakamoto; G. Sato; N. Gehrels; K. Hurley; D. M. Palmer

doi:10.1086/590428

The swift discovery of X-ray afterglows accompanying short bursts from SGR 1900+14

Y. E. Nakagawa, T. Sakamoto, G. Sato, N. Gehrels, K. Hurley, D. M. Palmer

Waseda Research Institute for Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The discovery of X-ray afterglows accompanying two short bursts from SGR 1900+14 is presented. The afterglow luminosities at the end of each observation are lower by 30%-50% than their initial luminosities, and decay with power-law indices p ∼ 0.2-0.4. Their initial bolometric luminosities are L ∼ 10³⁴-10³⁵ erg s^-1. We discuss analogies and differences between the X-ray afterglows of SGR short bursts and short gamma-ray bursts.

Original language	English
Journal	Astrophysical Journal
Volume	681
Issue number	2 PART 2
DOIs	https://doi.org/10.1086/590428
Publication status	Published - 2008

Keywords

Stars: Neutron

ASJC Scopus subject areas

Space and Planetary Science
Astronomy and Astrophysics

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10.1086/590428

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abstract = "The discovery of X-ray afterglows accompanying two short bursts from SGR 1900+14 is presented. The afterglow luminosities at the end of each observation are lower by 30%-50% than their initial luminosities, and decay with power-law indices p ∼ 0.2-0.4. Their initial bolometric luminosities are L ∼ 1034-1035 erg s-1. We discuss analogies and differences between the X-ray afterglows of SGR short bursts and short gamma-ray bursts.",

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author = "Nakagawa, {Y. E.} and T. Sakamoto and G. Sato and N. Gehrels and K. Hurley and Palmer, {D. M.}",

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T1 - The swift discovery of X-ray afterglows accompanying short bursts from SGR 1900+14

AU - Nakagawa, Y. E.

AU - Sakamoto, T.

AU - Sato, G.

AU - Gehrels, N.

AU - Hurley, K.

AU - Palmer, D. M.

PY - 2008

Y1 - 2008

N2 - The discovery of X-ray afterglows accompanying two short bursts from SGR 1900+14 is presented. The afterglow luminosities at the end of each observation are lower by 30%-50% than their initial luminosities, and decay with power-law indices p ∼ 0.2-0.4. Their initial bolometric luminosities are L ∼ 1034-1035 erg s-1. We discuss analogies and differences between the X-ray afterglows of SGR short bursts and short gamma-ray bursts.

AB - The discovery of X-ray afterglows accompanying two short bursts from SGR 1900+14 is presented. The afterglow luminosities at the end of each observation are lower by 30%-50% than their initial luminosities, and decay with power-law indices p ∼ 0.2-0.4. Their initial bolometric luminosities are L ∼ 1034-1035 erg s-1. We discuss analogies and differences between the X-ray afterglows of SGR short bursts and short gamma-ray bursts.

KW - Stars: Neutron

UR - http://www.scopus.com/inward/record.url?scp=65349151398&partnerID=8YFLogxK

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JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 PART 2

ER -

The swift discovery of X-ray afterglows accompanying short bursts from SGR 1900+14

Abstract

Keywords

ASJC Scopus subject areas

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