6533b832fe1ef96bd129a455

RESEARCH PRODUCT

Infrared and optical observations of the newly identified Be/X-ray binary LSI + 61  235

Juan FabregatPatrick F. RocheVictor RegleroAndrew NortonS. J. UngerJ. M. GrunsfeldM. J. CoeC. Everall

subject

Photometry (optics)PhysicsInfrared astronomy3D optical data storageSpace and Planetary ScienceInfraredBe starX-ray binaryAstronomyAstronomy and AstrophysicsEmission spectrumAstrophysicsSpectral line

description

Observational (IR) and optical data are presented of the newly discovered Be/X-ray binary system LSI + 61° 235, taken over the period 1991 August – 1992 May. Though the IR shows little evidence for any changes, the optical Hα spectrum has undergone substantial modification. Combination of optical photometric measurements with the IR photometry allows the overall spectrum to be investigated and the existence of the Be star’s circumstellar disc to be directly confirmed.

https://doi.org/10.1093/mnras/261.3.599