Spatially resolved images of the optical counterpart to Circinus X-1.

Details Spatially resolved images of the optical counterpart to Circinus X-1. Spatially resolved images of the optical counterpart to Circinus X-1.

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989msngr..58....7m&link_type=abstract

The Messenger, vol. 58, p. 7-8

Physics

3

X-Ray Sources: Optical Counterparts

Scientific paper

We have obtained high resolution images in which the optical counterpart to the X-ray binary Circinus X-1 is resolved. The images were obtained on 16 and 18 August 1989 using EFOSC2 in direct imaging mode on the ESO New Technology Telescope (NV. A 30 x 3 0 portion of each image, centred on Cir X-1 , is shown in Figure 1. The V and R images obtained on 16 August are reproduced in panels a and b, while the R and I images obtained on 18 August are reproduced in panels c and d. The integration time was 60 sec for all images; and all images have been bias corrected and flat fielded. The FWHM of the stellar profiles was 015 on 16 August and 019 on 18 August

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