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Joint Hα and X‐Ray Observations of Massive X‐Ray Binaries. II. The Be X‐Ray Binary and Microquasar LS I +61 303
We present the results of an H-alpha monitoring campaign on the BeXRB and microquasar system LS I +61 303. We use radial velocity measurements of HeI lines in our spectra to re-evaluate the orbital elements and to better establish the time of periastron. We list equivalent widths and other parameters …