PRL Advanced Radial-velocity All-sky Search

PRL Advanced Radial-velocity Abu-sky Search, abbreviated PARAS,Chakraborty, Abhijit & Mahadevan, Suvrath & Roy, Arpita & M. Pathan, Fazalahmed & Shah, Vishal & H. Richardson, Eric & Ubale, Girish & Shah, Rajesh. (2010). [https://arxiv.org/abs/1007.4280 First light results from PARAS: The PRL Echelle spectrograph]. Proc SPIE. 7735. {{doi|10.1117/12.856555}}. 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.

References

{{cite book|arxiv=1607.06485|doi=10.1117/12.2232833|chapter=Precision velocimetry planet hunting with PARAS: Current performance and lessons to inform future extreme precision radial velocity instruments|title=Ground-based and Airborne Instrumentation for Astronomy VI|year=2016|editor1-last=Evans|editor1-first=Christopher J|editor2-last=Simard|editor2-first=Luc|editor3-last=Takami|editor3-first=Hideki|last1=Roy|first1=Arpita|last2=Chakraborty|first2=Abhijit|last3=Mahadevan|first3=Suvrath|last4=Chaturvedi|first4=Priyanka|last5=Prasad|first5=Neelam J.S.S.V.|last6=Shah|first6=Vishal|last7=Pathan|first7=F. M.|last8=Anandarao|first8=B. G.|s2cid=119203005|volume=9908|pages=99086R}}
[https://www.thebetterindia.com/144623/indian-scientists-find-new-planet-600-light-years-away-heres-how/ ISRO’s PRL scientists discover an ‘EPIC’ planet]

Category:Exoplanet search projects

Category:Spectrographs