BeppoSAX observations of SGR 1900+14 in quiescence and during an active period

被引：51

作者：

Woods, PM ^{[1
]}

Kouveliotou, C

van Paradijs, J

Finger, MH

Thompson, C

机构：

[1] Univ Alabama, Dept Phys, Huntsville, AL 35899 USA

[2] Univ Space Res Assoc, Greenbelt, MD USA

[3] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA

[4] Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1098 SJ Amsterdam, Netherlands

[5] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA

来源：

ASTROPHYSICAL JOURNAL | 1999年 / 518卷 / 02期

基金：

美国国家航空航天局;

关键词：

pulsars : general; stars : individual (SGR 1900+14); stars : neutron; X-rays : bursts;

D O I：

10.1086/312085

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present results from two BeppoSAX Narrow-Field Instrument observations of SGR 1900+14 made during a quiescent and an active period of the source. We detect pulsations in the 1997 May 12-13 observation (quiescence) at 5.157190(7) s and the 1998 September 15-16 observation (active period) at 5.160261(12) s. Using results recently reported by Hurley et al., we establish a long-term spin-down rate during quiescence of 5.82(2) x 10(-11) s s(-1), which implies a dipole magnetic field of similar to 5.5 x 10(14) G. We confirm deviations from a constant spin-down rate during the active period. We also find spectral similarities between SGR 1900+14 in quiescence and anomalous X-ray pulsars.

引用

页码：L103 / L106

页数：4

共 38 条

[1] LOCALIZATION, TIME HISTORIES, AND ENERGY-SPECTRA OF A NEW TYPE OF RECURRENT HIGH-ENERGY TRANSIENT SOURCE [J].

ATTEIA, JL ;

BOER, M ;

HURLEY, K ;

NIEL, M ;

VEDRENNE, G ;

FENIMORE, EE ;

KLEBESADEL, RW ;

LAROS, JG ;

KUZNETSOV, AV ;

SUNYAEV, RA ;

TEREKHOV, OV ;

KOUVELIOTOU, C ;

CLINE, T ;

DENNIS, B ;

DESAI, U ;

ORWIG, L .

ASTROPHYSICAL JOURNAL, 1987, 320 (02) :L105-L110

[2] The medium-energy concentrator spectrometer on board the BeppoSAX X-ray astronomy satellite [J].

Boella, G ;

Chiappetti, L ;

Conti, G ;

Cusumano, G ;

DelSordo, S ;

LaRosa, G ;

Maccarone, MC ;

Mineo, T ;

Molendi, S ;

Re, S ;

Sacco, B ;

Tripiciano, M .

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1997, 122 (02) :327-340

[3] BeppoSAX, the wide band mission for X-ray astronomy [J].

Boella, G ;

Butler, RC ;

Perola, GC ;

Piro, L ;

Scarsi, L ;

Bleeker, JAM .

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1997, 122 (02) :299-307

[4] PRECISE SOURCE LOCATION OF THE ANOMALOUS 1979 MARCH 5 GAMMA-RAY TRANSIENT [J].

CLINE, TL ;

DESAI, UD ;

TEEGARDEN, BJ ;

EVANS, WD ;

KLEBESADEL, RW ;

LAROS, JG ;

BARAT, C ;

HURLEY, K ;

NIEL, M ;

VEDRENNE, G ;

ESTULIN, IV ;

KURT, VG ;

MERSOV, GA ;

ZENCHENKO, VM ;

WEISSKOPF, MC ;

GRINDLAY, J .

ASTROPHYSICAL JOURNAL, 1982, 255 (01) :L45-L48

[5]

CLINE TL, 1998, 7002 IAU

[6] FORMATION OF VERY STRONGLY MAGNETIZED NEUTRON-STARS - IMPLICATIONS FOR GAMMA-RAY BURSTS [J].

DUNCAN, RC ;

THOMPSON, C .

ASTROPHYSICAL JOURNAL, 1992, 392 (01) :L9-L13

[7] An outburst of relativistic particles from the soft γ-ray repeater SGR1900+14 [J].

Frail, DA ;

Kulkarni, SR ;

Bloom, JS .

NATURE, 1999, 398 (6723) :127-129

[8] A giant periodic flare from the soft γ-ray repeater SGR1900+14 [J].

Hurley, K ;

Cline, T ;

Mazets, E ;

Barthelmy, S ;

Butterworth, P ;

Marshall, F ;

Palmer, D ;

Aptekar, R ;

Golenetskii, S ;

Il'Inskii, V ;

Frederiks, D ;

McTiernan, J ;

Gold, R ;

Trombka, J .

NATURE, 1999, 397 (6714) :41-43

[9] ASCA discovery of an X-ray pulsar in the error box of SGR 1900+14 [J].

Hurley, K ;

Li, P ;

Kouveliotou, C ;

Murakami, T ;

Ando, M ;

Strohmayer, T ;

van Paradijs, J ;

Vrba, F ;

Luginbuhl, C ;

Yoshida, A ;

Smith, I .

ASTROPHYSICAL JOURNAL, 1999, 510 (02) :L111-L114

[10] Reactivation and precise interplanetary network localization of the soft gamma repeater SGR 1900+14 [J].

Hurley, K ;

Kouveliotou, C ;

Woods, P ;

Cline, T ;

Butterworth, P ;

Mazets, E ;

Golenetskii, S ;

Frederics, D .

ASTROPHYSICAL JOURNAL, 1999, 510 (02) :L107-L109

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