31 citations · 95 across the 10 of their papers we have counts for
10 papers
Design and Development of Cassegrain Module for PARAS-2 Spectrograph (CAMPAS)
Kevikumar A. Lad, Neelam J. S. S. V. Prasad, Kapil Bharadwaj +5
We present here the design and development of the CAMPAS, the Cassegrain Module for the PARAS-2 spectrograph. PARAS-2 is a high-resolution fiber-fed echelle spectrograph developed…
TOI-7154b: A Close-in Massive Brown Dwarf in an Eccentric Orbit
Rohan Ch. Das, Churchil Dwivedi, Rishikesh Sharma +12
We report here the discovery and characterization of a high-mass transiting brown dwarf in a close-in orbit around its host star, TOI-7154. Initially, the host star was identified…
TOI-6038 A b: A dense sub-Saturn in the transition regime between the Neptunian ridge and savanna
Sanjay Baliwal, Rishikesh Sharma, Abhijit Chakraborty +13
We present the discovery and characterization of a sub-Saturn exoplanet, TOI-6038~A~b, using the PARAS-2 spectrograph. The planet orbits a bright (), metal-rich late F-typ…
Discovery and characterization of a dense sub-Saturn TOI-6651b
Sanjay Baliwal, Rishikesh Sharma, Abhijit Chakraborty +13
We report the discovery and characterization of a transiting sub-Saturn exoplanet TOI-6651b using PARAS-2 spectroscopic observations. The host, TOI-6651 (), is a…
The PRL 2.5m Telescope and its First Light Instruments: FOC & PARAS-2
Abhijit Chakraborty, Kapil Kumar Bharadwaj, Neelam J. S. S. V. Prasad +7
We present here the information on the design and performance of the recently commissioned 2.5-meter telescope at the PRL Mount Abu Observatory, located at Gurushikhar, Mount Abu,…
Discovery of a massive giant planet with extreme density around a sub-giant star TOI-4603
Akanksha Khandelwal, Rishikesh Sharma, Abhijit Chakraborty +11
We present the discovery of a transiting massive giant planet around TOI-4603, a sub-giant F-type star from NASA's Transiting Exoplanet Survey Satellite (TESS). The newly discovere…
Discovery of an inflated hot Jupiter around a slightly evolved star TOI-1789
Akanksha Khandelwal, Priyanka Chaturvedi, Abhijit Chakraborty +11
We report here the discovery of a hot Jupiter at an orbital period of days around TOI-1789 (TYC 1962-00303-1, = 9.1) based on the TESS photometry…
Masses and radii of four very low mass stars in F+M eclipsing binary systems
Priyanka Chaturvedi, Rishikesh Sharma, Abhijit Chakraborty +2
Eclipsing Binaries (EBs) with one of the companions as very low mass stars (VLMS or M dwarfs) are testbeds to substantiate stellar models and evolutionary theories. Here, we presen…
Evidence of a Sub-Saturn around EPIC~211945201
Abhijit Chakraborty, Arpita Roy, Rishikesh Sharma +4
We report here strong evidence for a sub-Saturn around EPIC~211945201 and confirm its planetary nature. EPIC~211945201b was found to be a planetary candidate from {\it K2} photomet…
Precision velocimetry planet hunting with PARAS: Current performance and lessons to inform future extreme precision radial velocity instruments
Arpita Roy, Abhijit Chakraborty, Suvrath Mahadevan +5
PARAS is a fiber-fed stabilized high-resolution cross-dispersed echelle spectrograph, located on the 1.2 m telescope in Mt. Abu India. Designed for exoplanet detection, PARAS is ca…