The discovery of an outburst and pulsed X-ray flux from SMC X-2 using the Rossi X-ray Timing Explorer

被引：31

作者：

Corbet, RHD

Marshall, FE

Coe, MJ

Laycock, S

Handler, G

机构：

[1] NASA, Goddard Space Flight Ctr, High Energy Astrophys Lab, Greenbelt, MD 20771 USA

[2] Univ Space Res Assoc, Washington, DC USA

[3] Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England

[4] S African Astron Observ, ZA-7935 Cape Town, South Africa

来源：

ASTROPHYSICAL JOURNAL | 2001年 / 548卷 / 01期

关键词：

stars : individual (SMC X-2); stars : neutron; X-rays : stars;

D O I：

10.1086/318929

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Rossi X-Ray Timing Explorer (RXTE) All-Sky Monitor observations of SMC X-2 show that the source experienced an outburst in 2000 January-April reaching a peak luminosity of greater than similar to 10(38) ergs s(-1). RXTE Proportional Counter Array observations during this outburst reveal the presence of pulsations with a 2.37 s period. However, optical photometry of the optical counterpart shows that the source was still significantly fainter than it was more than a half a year after the outburst in the 1970s when SMC X-2 was discovered.

引用

页码：L41 / L44

页数：4

共 23 条

[1] Observations of accreting pulsars [J].

Bildsten, L ;

Chakrabarty, D ;

Chiu, J ;

Finger, MH ;

Koh, DT ;

Nelson, RW ;

Prince, TA ;

Rubin, BC ;

Scott, DM ;

Stollberg, M ;

Vaughan, BA ;

Wilson, CA ;

Wilson, RB .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1997, 113 (02) :367-408

[2]

CHAKRABARTY D, 1998, 7048 IAU

[3] 2 NEW X-RAY SOURCES IN SMC AND HIGH LUMINOSITIES OF MAGELLANIC X-RAY SOURCES [J].

CLARK, G ;

DOXSEY, R ;

LI, F ;

JERNIGAN, JG ;

VANPARADIJS, J .

ASTROPHYSICAL JOURNAL, 1978, 221 (02) :L37-&

[4] DEEP X-RAY SURVEY OF THE SMALL MAGELLANIC CLOUD [J].

CLARK, G ;

LI, F ;

VANPARADIJS, J .

ASTROPHYSICAL JOURNAL, 1979, 227 (01) :54-55

[5] Near-IR photometry of southern X-ray binary systems [J].

Coe, MJ ;

Buckley, DAH ;

Fabregat, J ;

Steele, LA ;

Still, MD ;

Torrejon, JM .

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1997, 126 (02) :237-240

[6]

CORBET R, 1998, 6803 IAU

[7] THE 3 TYPES OF HIGH-MASS X-RAY PULSATOR [J].

CORBET, RHD .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1986, 220 (04) :1047-1056

[8] OPTICAL COUNTERPARTS OF SMC X-2 AND SMC X-3 [J].

CRAMPTON, D ;

HUTCHINGS, JB ;

COWLEY, AP .

ASTROPHYSICAL JOURNAL, 1978, 223 (02) :L79-L81

[9] A NEW TRANSIENT PULSAR IN THE SMALL MAGELLANIC CLOUD WITH AN UNUSUAL X-RAY-SPECTRUM [J].

HUGHES, JP .

ASTROPHYSICAL JOURNAL, 1994, 427 (01) :L25-L28

[10] In orbit performance and calibration of the Rossi X-ray Timing Explorer (RXTE) Proportional Counter Array (PCA) [J].

Jahoda, K ;

Swank, JH ;

Giles, AB ;

Stark, MJ ;

Strohmayer, T ;

Zhang, W ;

Morgan, EK .

EUV, X-RAY, AND GAMMA-RAY INSTRUMENTATION FOR ASTRONOMY VII, 1996, 2808 :59-70

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