A Tentative 114 minute Orbital Period Challenges the Ultracompact Nature of the X-Ray Binary 4U 1812โ12
A Tentative 114 minute Orbital Period Challenges the Ultracompact Nature of the X-Ray Binary 4U 1812โ12
Abstract We present a detailed time-resolved photometric study of the ultracompact X-ray binary candidate 4U 1812โ12. The multicolor light curves obtained with HiPERCAM on the 10.4 m Gran Telescopio Canarias show a โ114 minute modulation similar to a superhump. Under this interpretation, this period should lie very close to the โฆ