X-Ray Observations of NP 0532

A PULSAR HUNTER: TESTS ON NP 0532° HONG-YEE CfflU

Photoelectric photometry has been employed in many attempts to discover optical counterparts for radio pulsars. The techniques generally involve a search—by means of some form of data manipulation—for a component of optical variability that is harmonically related to the radio pulsation. Although the general method has found spectacular success in the case of NP 0532 (Cocke, Disney, and Taylor ...

X-ray observations of ultraluminous X-ray sources

Ultraluminous X-ray sources (ULXs) are amongst the most intriguing of X-ray source classes. Their extreme luminosities greater than 10 erg s in the 0.3 – 10 keV band alone suggest either the presence of black holes larger than those regularly encountered in our own Galaxy (the Galactic centre excepted), or sources apparently radiating well above the Eddington limit. We review the insights affor...

the plain x-ray the diagnosis of the acute abdomen_

چکیده ندارد.

The X–ray Background: Observations

Simultaneous X-ray/radio Observations of Cir X-1 Simultaneous X-ray/radio Observations of Cir X-1

We analysed simultaneous X-ray/radio observations of Circinus X-1 collected respectively with RXTE and ATCA in 2000 October and 2002 December and identified radio flares close to phase 0.0 and 0.5 of the orbital period. To date, there is only circumstantial evidence for radio flares near phase 0.5. Moreover, in our data set, we clearly associated both a radio flare and X-ray spectral timing cha...