activity
20002023
most citedTOI-503: The first known brown dwarf-Am star binary from the TESS mission

43 citations · 305 across the 19 of their papers we have counts for

collaborators

19 papers

astro-ph.EP2023★ 11 cited

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…

astro-ph.EP2021★ 7 cited

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…

astro-ph.IM2021★ 7 cited

Precision wavelength calibration for Radial Velocity measurements using Uranium lines between 3800-6900 Å

Rishikesh Sharma, Abhijit Chakraborty

We present here the precise wavelength calibration of a high-resolution spectrum using Uranium (U) lines in the wavelength range of 3809 - 6833 Å for precision radial velocity meas…

astro-ph.SR2019★ 43 cited

TOI-503: The first known brown dwarf-Am star binary from the TESS mission

Ján Šubjak, Rishikesh Sharma, Theron W. Carmichael +76

We report the discovery of an intermediate-mass transiting brown dwarf, TOI-503b, from the TESS mission. TOI-503b is the first brown dwarf discovered by TESS and orbits a metallic-…

astro-ph.SR2018★ 31 cited

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…

astro-ph.EP2018★ 24 cited

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…