J/MNRAS/308/473 J/MNRAS/308/473 Cygnus X-3 IR spectra R P Fender M M Hanson G G Pooley Mon. Not. R. Astron. Soc. 308 473 1999 1999MNRAS.308..473F Binaries, X-ray Spectra, infrared binaries: close stars: individual: (Cygnus X-3) circumstellar matter infrared: stars We present four epochs, A, B, C and D, of resolution ({lambda}/{delta}{lambda}) = 1200, 2.12 micron spectroscopy of the peculiar X-ray binary Cygnus X-3. About a half dozen spectra taken with resolution 900, and at 1.62 micron are also included. These data were obtained using the FSpec near-infrared spectrometer (Williams, D., Thompson, C.L., Rieke, G.H., Montgomery, E. 1993, Proc. SPIE 1308, 482) on the Multiple Mirror Telescope (MMT). The MMT is located at an elevation of 2600 m at the top of Mt. Hopkins in southern Arizona and is jointly operated by the Smithsonian Astrophysics Observatory and the University of Arizona. The spectra are stored as ascii files, listing wavelength in Angstroms and relative flux. Each file contains a five line header, giving the UT, Heliocentric Julian date and phase of the X-ray system at the start of the integration, followed by the data points. Additional information about the spectra can be obtained in the paper.

Cyg X-3V1521 CygH 2030+40720 32 26.6+40 57 09

File Spectrum file name in subdirectory sp --- OBSdate Start of exposure "DD/MM/YY" OBSh Observation time h --- --- OBSm Observation time min --- --- OBSs Observation time s HJD Heliocentric Julian date d Exp Exposures number=1 Exposures defined as offsets in slit x sampled spectra x integration time per spectrum in seconds --- Phase Phase number=2 Phases represents start of exposure, using ephemeris of Kitamoto et al. (1995PASJ...47..233K) --- Patricia Bauer CDS 1999May02Margaret M. Hanson <hanson@physics.uc.edu> J_MNRAS_308_473.xml