Optical spectroscopy of the low-mass X-ray binary GX 9+9

Optical spectroscopy of the low-mass X-ray binary GX 9+9

Phase-resolved medium-resolution VLT spectroscopy of the low-mass X-ray binary GX 9+9 has revealed narrow C iii emission lines that move in phase relative to our new estimate of the ephemeris, and show a velocity amplitude of 230 ± 35 km s-1. We identify the origin of these lines as coming from the...

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Bibliographic Details
Main Authors: Cornelisse, R, Steeghs, D, Casares, J, Charles, P, Barnes, A, Hynes, R, O'Brien, K
Format: Journal article
Language:English
Published: 2007

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