Aql X-1 optical state
ATel #287; S. A. Ilovaisky, C. Chevalier (OHP)
on 27 May 2004; 08:05 UT
Credential Certification: Sergio A. Ilovaisky (ilovaisky@obs-hp.fr)
Subjects: Optical, Binary, Neutron Star, Transient
Referred to by ATel #: 288
CCD photometry of V1333Aql/Aql X-1 obtained with the 1.2-m telescope at Haute-Provence (OHP) in the interval May 18-24 shows the average magnitude to have been nearly constant around V=17. This is comparable to the maximum optical brightness we observed during the weak 2002 (presumably hard) outburst. Publicly available 2-10 keV ASM RXTE/Rossi data exhibit a continuing slow rise, from roughly 50 to 70 mCrab over this same time interval.
