6533b855fe1ef96bd12b1aa7

RESEARCH PRODUCT

Photometric and Hα Observations of LSI+61°303

Carme JordiJosep MartíC. EverallJ. M. ParedesP. RocheVictor RegleroAndrew NortonJ. M. GrunsfeldG. RossellóS. J. UngerJ. TorraJuan FabregatM. J. CoePaola MarzianiR. K. ZamanovFrancesca Figueras

subject

PhysicsRadial velocityInfraredHigh resolutionAstrophysicsMaximaSpectral line

description

The Be massive X-ray binary LSI+61°303 is a 26.5 days periodic radiosource (Taylor & Gregory, 1984), exhibiting radio outbursts maxima between phases 0.6-0.8. Evidence of a photometric period of similar value has also been reported (Paredes & Figueras, 1986; Mendelson & Mazeh, 1989). The previous spectroscopic radial velocity observations of Hutchings & Crampton (1981) are in agreement with the radio period, and give support to the presence of a companion. We present new optical and infrared photometric observations and high resolution Hα spectra of LSI+61°303.

https://doi.org/10.1007/978-94-011-1030-3_55