TITLE

GRO J2058+42 Observations with BATSE and RXTE

AUTHOR(S)
Wilson, Colleen A.; Finger, Mark H.; Scott, D. Matthew
PUB. DATE
April 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 510 Issue 1, p208
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
GRO J2058+42 is a 196-second pulsar discovered with the Burst and Transient Source Experiment (BATSE) on the Compton Gamma-Ray Observatory (CGRO) during a giant outburst in 1995. It underwent a series of 9 weaker outbursts from 1995 to 1997 that alternated in peak pulsed intensity, with a 110-day cycle in the 20–50 keV band [4]. These outbursts did not show the same intensity variations in the 2–10 keV observations with the Rossi X-ray Timing Explorer’s (RXTE) All-Sky Monitor (ASM) [2]. Additional outbursts after this series were observed with BATSE and with the RXTE Proportional Counter Array (PCA) and ASM [3]. These outbursts do not appear to continue the alternating peak pulsed intensity pattern seen with BATSE in the first 9 outbursts. Histories of pulse frequency, pulsed flux, and total flux are presented. Pulse profiles and spectra from PCA observations are also presented. © 2000 American Institute of Physics.
ACCESSION #
6029807

 

Related Articles

  • Discovery of two transient X-ray pulsars in the small magellanic cloud. Laycock, S.; Corbet, R. H. D.; Coe, M. J.; Perrodin, D.; Marshall, F.; Markwardt, C. // AIP Conference Proceedings;2001, Vol. 587 Issue 1, p49 

    Recent RXTE observations of the SMC have revealed two previously unknown transient X-ray pulsars with pulse periods of 95s and 4.78s. The sources are proposed as Be/neutron star systems on the basis of their pulsations, transient nature and characteristically hard spectra. Optical observations...

  • Spinning up a millisecond pulsar.  // Sky & Telescope;Aug98, Vol. 96 Issue 2, p28 

    Focuses on the discovery of the first binary millisecond X-ray pulsar. Slight periodic variations in the pulse timing; Source of the hot matter that is falling onto the neutron star; Telltale sign of an accretion disk closely surrounding the neutron star.

  • A new pulsar/SNR pair: AX J1845-0258 in G29.6+0.1. Gotthelf, E. V.; Vasisht, G.; Torii, K.; Gaensler, B. M. // AIP Conference Proceedings;2001, Vol. 599 Issue 1, p445 

    We present a follow-up X-ray and radio study of the field containing the 7-s X-ray pulsar AXJ1845-0258, the serendipitous ASCA source whose characteristics are found to be similar to those of the anomalous X-ray pulsars (AXPs). Newly acquired ASCA data confirms a dramatic reduction in flux from...

  • BeppoSAX observation of the X-ray pulsar 4U 1538-52. Robba, Natale R.; Di Salvo, Tiziana; Burderi, Luciano; La Barbera, Antonino; Cusumano, Giancarlo // AIP Conference Proceedings;2000, Vol. 510 Issue 1, p213 

    We report preliminary results of the temporal and spectral analysis performed on the X-ray pulsar 4U1538-52 out of eclipse observed by BeppoSAX. We obtain a new estimate of the pulse period of the neutron star P=528.24±0.01 s (corrected for the orbital motion of the X-ray source): the source...

  • X-ray vision. Chown, Marcus // New Scientist;10/03/98, Vol. 160 Issue 2154, p17 

    Focuses on what happens to a pulsar, a star that only emit x-rays, after it explodes as a supernova. How a supernova explosion occurs; Why pulsars are not found in supernova remnants; Information on supernova remnants; How X-rays are produced.

  • Long-term RXTE monitoring of the anomalous X-ray pulsar 1E 1048.1–5937. Kaspi, Victoria M.; Gavriil, Fotis P.; Chakrabarty, Deepto; Lackey, Jessica R.; Muno, Michael P. // AIP Conference Proceedings;2001, Vol. 586 Issue 1, p501 

    We report on long-term monitoring of the anomalous X-ray pulsar 1E 1048.1-5937 using the Rossi X-ray Timing Explorer. This pulsar's timing behavior is different from that of other AXPs. In particular, the pulsar shows significant deviations from simple spin-down such that phase-coherent timing...

  • DEAD STARS MAY HELP IN SPACECRAFT NAVIGATION. CHESTER, SIMON // APC (Bauer Media Group);Dec2012, Vol. 32 Issue 12, p123 

    The article reports that scientists at the National Physical Laboratory (NPL) and the University of Leicester will investigate the feasibility of using the X-ray pulses emitted by dead stars as deep space navigation beacons.

  • A millisecond pulsar in an X-ray binary system. Wijnands, Rudy; Van der Klis, Michiel // Nature;7/23/1998, Vol. 394 Issue 6691, p344 

    Presents research which discovered a millisecond pulsar in an X-ray binary system. Ordinary radio pulsars compared with millisecond radio pulsars; Source of energy driving radio pulsations; Location of millisecond pulsars; Relevant theory.

  • A Weak Outburst of the Millisecond X-ray Pulsar SAX J1808.4–3658 in October 1996 as Detected from RXTE Slew Data. Revnivtsev, M. G. // Astronomy Letters;Jun2003, Vol. 29 Issue 6, p383 

    Analysis of the RXTE slew data in October 1996 revealed a weak X-ray burst from the millisecond pulsar SAX J1808.4-3658. The 3-20-keV energy spectrum of the source can be described by a power law with an index of 2.0 and a (3- to 20 keV) luminosity of ∼1.4 × 10[SUP35] erg s[SUP-1] (the...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics