[ Previous | Next | ADS ]

Optical photometry of Swift J1753.5-0127

ATel #554; R. I. Hynes (LSU), F. Mullally (UT-Austin)
on 5 Jul 2005; 22:40 UT
Credential Certification: Robert Hynes (rih@phys.lsu.edu)

Subjects: Optical, Binary, Black Hole, Transient

Referred to by ATel #: 562

Rapid optical photometry of Swift J1753.5-0127 (Palmer et al., ATEL #546) was acquired on 2005 July 5th 05:44-07:45UT with the Argos CCD photometer on the McDonald Observatory 2.1m telescope. A broad UBV (BG40) filter was used with 1-sec integrations and negligible dead-time. Weak flickering was present with an rms amplitude 2.0% (integrated 1mHz - 0.5Hz) after subtraction of white-noise power. No QPOs or breaks in the red-noise are apparent within this frequency range. Further fast photometry coordinated with X-ray observations is encouraged as correlated variability is likely.