0 Discovery of a new pulsating X - ray source with a 1549 . 1 - s period , AX J 183220 − 0840
نویسندگان
چکیده
A new pulsating X-ray source, AX J183220−0840, with a 1549.1-s period was discovered at R.A.= 18h32m20s and Dec.= −84030 (J2000, uncertainty= 0.6) during an
منابع مشابه
INTEGRAL and Swift observations of the supergiant fast X - ray transient AX J 1845 . 0 − 0433 = IGR J 18450 − 0435
Context. AX J1845.0−0433 was discovered by ASCA in 1993 during fast outburst activity characterized by several flares on short timescales. Up to now, the source was not detected again by any X-ray mission. Its optical counterpart is suggested to be an O9.5I supergiant star, which is the only remarkable object found inside the ASCA error box. Aims. To detect and characterize new fast outbursts o...
متن کاملar X iv : a st ro - p h / 98 05 35 4 v 1 2 8 M ay 1 99 8 Discovery of a New 89 Second X – ray Pulsar XTE J 1906 + 09
Received ; accepted – 2 – ABSTRACT We report on the discovery of a new pulsating X–ray source during Rossi X–ray Timing Explorer observations of a low galactic latitude field centered at RA (J2000) = 19 hr 05 m 43 s and Dec (J2000)= +08 • 58 ′ 48 ′′. Significant pulsations were detected by both the PCA and HEXTE instruments aboard RXTE at a fundamental period of 89.17 ± 0.02 seconds, with highe...
متن کاملINTEGRAL, XMM-Newton and ESO/NTT identification of AX J1749.1−2733: an obscured and likely-distant Be/X-ray binary
Context. AX J1749.1−2733 is an unclassified transient X-ray source discovered during surveys by ASCA in 1993–1999. The transient behaviour and the short and bright flares of the source led to think that it is part of the recently revealed sub-class of supergiant fast X-ray transient. Aims. A multi-wavelength study in NIR, optical, X-rays and hard X-rays of AX J1749.1−2733 is undertaken in order...
متن کاملINTEGRAL, XMM-Newton and ESO/NTT identification of AX J1749.1−2733: an obscured and probably distant Be/X-ray binary
Context. AX J1749.1−2733 is an unclassified transient X-ray source discovered during surveys by ASCA in 1993–1999. The transient behaviour and the short and bright flares of the source have led to the idea that it is part of the recently revealed subclass of supergiant fast X-ray transients. Aims. A multi-wavelength study in NIR, optical, X-rays, and hard X-rays of AX J1749.1−2733 is undertaken...
متن کاملPSR J2021+3651: A Young Radio Pulsar Coincident with an Unidentified EGRET Gamma-ray Source
We report on a deep search for radio pulsations toward five unidentified ASCA X-ray sources coincident with EGRET g-ray sources. This search has led to the discovery of a young and energetic pulsar using data obtained with the new Wideband Arecibo Pulsar Processor. PSR J2021 3651 is likely associated with the X-ray source AX J2021.1 3651, which in turn is likely associated with the COS B high-e...
متن کامل