Polarimeter Design For Astrophysical Studies In Russian-Turkish 1.5 M Telescope (Rtt150)", 40th COSPAR 2014, Moskova, RUSYA, , vol.1, no.1, pp.1

KAHYA G., HAMİTOĞLU İ., HELHEL S., KIRBIYIK H., KAYNAR S., BAYAR C.

ASTRONOMICAL POLARIMETRY 2014, Moskova, Russia, 26 - 30 May 2014, vol.1, no.1, pp.1-2, (Summary Text)

  • Publication Type: Conference Paper / Summary Text
  • Volume: 1
  • City: Moskova
  • Country: Russia
  • Page Numbers: pp.1-2
  • Akdeniz University Affiliated: Yes

Abstract

Instrumental base of 1.5m Russian-Turkish telescope RTT150 makes it possible to carry
out practically whole kind of astrophysical observations in the visible range. Until recently
the observational complex included light detectors for high positional and photometric
CCD observations, fast photometry, and for obtaining low and high resolution spectra.
During the last observation campaign of PHA Apophis close approach, we are faced with
lack of spectroscopic observations to determine the taxonomy class of asteroids with visual
magnitude fainter than 16m, due to the requirement of extremely long observational time.
In addition to spectroscopic method for taxonomy determination, polarimetric method
should also be employed. We present design of a polarimeter for RTT150 for simultaneous
imaging of celestial sources on polarization planes on the base of WeDoWo (Wedged
Double Wollaston, Oliva 1987). The accuracy and magnitude limits are discussed. The
designed polarimeter may be used for not only asteroid observations but also for
astrophysical sources like SN, AGN and so on. Thus, the polarimeter integration to the
RTT150 telescope increases its capabilities in ground-based observational support of
present and future astrophysical space missions (GAIA, SRG).