Published September 23, 2022 | Version v1
Dataset Open

Optical polarimetric observations of black hole binary Cyg X-1 with DIPol-2

Creators

  • 1. Department of Physics and Astronomy, 20014 University of Turku, Finland
  • 2. Department of Physics and Astronomy, 20014 University of Turku, Finland, Nordita, KTH Royal Institute of Technology and Stockholm University, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden, Space Research Institute of the Russian Academy of Sciences, Profsoyuznaya Str. 84/32, Moscow 117997, Russia
  • 3. Department of Physics and Astronomy, 20014 University of Turku, Finland, Space Research Institute of the Russian Academy of Sciences, Profsoyuznaya Str. 84/32, Moscow 117997, Russia
  • 4. Leibniz-Institut fur Sonnenphysik, D-79104 Freiburg, Germany
  • 5. School of Sciences, Tohoku University, Aoba-ku, 980-8578 Sendai, Japan

Description

The dataset contains raw polarimetric FITS images of black hole X-ray binary Cyg X-1 (and surrounding field), obtained with the DIPol-2 optical CCD polarimeter in three (BVR) filters while mounted on the remotely operated Tohoku 60 cm (T60) telescope at the Haleakala Observatory, Hawaii. The data were collected over 5 observing nights during the week 2022 May 15–21 for about 4 hours each night. During each observing night, a set of calibration images were also obtained. These typically include 7 dark and 7 bias images per filter per night. Bias and dark FITS files have `bias` or `dark` labels in their names.

Files

CygX1.zip

Files (10.9 GB)

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