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IGR J17544-2619 might be 1RXS J175428.3-262035

ATel #191; Rudy Wijnands (University of St Andrews)
on 18 Sep 2003; 10:39 UT
Distributed as an Instant Email Notice Request For Observations
Credential Certification: Rudy Wijnands (rudy@space.mit.edu)

Subjects: Radio, Infra-Red, X-ray, Request for Observations, Black Hole, Neutron Star, Transient

Referred to by ATel #: 338

Using the ROSAT All-Sky Survey Faint Source Catalogue (Voges et al. 2000, IAUC # 7432 ), it was found that the ROSAT source 1RXS J175428.3-262035 is located at the edge of the INTEGRAL error circle of the new transient IGR J17544-2619 (ATEL #190). The PSPC position listed in the Catalogue is 17h54m28.30s, -26 20' 35" (1 sigma error radius of 23") and the PSPC count rate of the source was 0.08+/-0.02 counts/s (0.1-2.4 keV). Observations at all wavelengths are encouraged to confirm the association of 1RXS J175428.3-262035 with IGR J17544-2619 and to determine the nature of this object.