PRL Advanced Radial-velocity Abu-sky Search, abbreviated PARAS,[1] is a ground-based
extrasolar planet search device. Based at
1.2m telescope is located at
Mt. Abu,
India. The project is funded by
Physical Research Laboratory,
India. The spectrograph works at a resolution of 67000. With the help of simultaneous calibration technique, PARAS has achieved an RV accuracy of 1.3 m/s for bright, quiet,
sun-like stars. Thorium-Argon lamp is used for calibration. New calibration techniques are also being explored by the project team. PARAS can detect planet in the
habitable zone around
M-type stars.
Roy, Arpita; Chakraborty, Abhijit; Mahadevan, Suvrath; Chaturvedi, Priyanka; Prasad, Neelam J.S.S.V.; Shah, Vishal; Pathan, F. M.; Anandarao, B. G. (2016). "Precision velocimetry planet hunting with PARAS: Current performance and lessons to inform future extreme precision radial velocity instruments". In Evans, Christopher J; Simard, Luc; Takami, Hideki (eds.). Ground-based and Airborne Instrumentation for Astronomy VI. Vol. 9908. pp. 99086R.
arXiv:1607.06485.
doi:
10.1117/12.2232833.
S2CID119203005.