OGLE-BLG182.1.162852: An Eclipsing Binary with a Circumstellar Disk - In Eclipse Now
ATel #6576; N. J. Rattenbury (The University of Auckland, New Zealand), L. Wyrzykowski (Warsaw University Astronomical Observatory, Poland), Z. Kostrzewa-Rutkowska (Warsaw University Astronomical Observatory, Poland), A. Udalski (Warsaw University Astronomical Observatory, Poland), S, Kozlowski (Warsaw University Astronomical Observatory, Poland), M. K. Szymanski (Warsaw University Astronomical Observatory, Poland), K., G. Pietrzynski(Warsaw University Astronomical Observatory, Poland), I. Soszynski(Warsaw University Astronomical Observatory, Poland), R. Poleski(Warsaw University Astronomical Observatory, Poland), K. Ulaczyk(Warsaw University Astronomical Observatory, Poland), J. Skowron(Warsaw University Astronomical Observatory, Poland), P. Pietrukowicz(Warsaw University Astronomical Observatory, Poland), P. Mroz(Warsaw University Astronomical Observatory, Poland), D. Skowron(Warsaw University Astronomical Observatory, Poland)
on 14 Oct 2014; 00:41 UT
Credential Certification: Nicholas Rattenbury (n.rattenbury@auckland.ac.nz)
Subjects: Far-Infra-Red, Infra-Red, Optical, Request for Observations, Transient
Rattenbury et al. (2014) present the discovery of a plausible disk-eclipse system OGLE-BLG182.1.162852. The OGLE light curve for OGLE-BLG182.1.162852 shows three episodes of dimming by I ~ 2 - 3 magnitudes, separated by 1277 days. The shape of the light curve during dimming events is very similar to that of known disk eclipse system OGLE-LMC-ECL-11893.
The event is presently undergoing a dimming event, predicted to end on December 30th, 2014. The system is presently at approximately I = 17.5 magnitudes.
Multi-wavelength photometry and spectroscopy are strongly encouraged now to confirm the presence and nature of the disk.
Link to arXiv paper (Rattenbury et al., 2014)
