XTE J1901+014 is 1RXS J190141.0+012618 ?
ATel #89; Rudy Wijnands (MIT)
on 17 Apr 2002; 21:52 UT
Distributed as an Instant Email Notice Request For Observations
Credential Certification: Rudy Wijnands (rudy@space.mit.edu)
Subjects: X-ray, Request for Observations, Binary, Black Hole, Transient
Referred to by ATel #: 93
Using the ROSAT All-Sky Survey Source Catalogue, it was found that the
ROSAT source 1RXS J190141.0+012618 is located in the RXTE/ASM error
box of XTE J1901+014 (ATEL 88) and at the edge of the Einstein error
circle. The PSPC position listed in the Catalogue is 19h01m41.0s, +1
26' 18" (1 sigma error radius of 12") and the PSPC count rate of the
source was 0.17+/-0.02 counts/s (0.1-2.4 keV). During a pointed
ROSAT/HRI observation performed on 1994 October 3 the source was also
detected. However, examining the raw data, the position of the source
appears to be slightly offset from the PSPC position (the tentative
HRI position is 19h01m40.1s, +1 26' 30" with an error radius of 10").
The ROSAT source 1 RXS J190141.0+012618 could be the quiescent
(non-flaring) X-ray counterpart of XTE J1901+014. Observations at all
wavelengths are encouraged to confirm the association of 1RXS
J190141.0+012618 with XTE J1901+014 and to determine the nature of
this object.
