Curriculum Vitae

Centrum Astronomiczne im. M. Kopernika PAN (CAMK, Toruń), Poland

Doctor of Philosophy, Astronomy

• Topic: Detached Eclipsing Binaries as Benchmark Stars for PLATO mission.
• Supervisor Prof. Dr. hab. Krzysztof Hełminiak.

Department of Physics, University of Mumbai, India

Master of Science, Physics

• M.Sc. Project -- X-Ray study of Active Galactic Nuclei.
• Supervisor Assistant Prof. Siddharth Kasthurirangan.

K. J. Somaiya College of Science and Commerce, Mumbai, India

Bachelor of Science, Physics

Stellar activity of ‘B, A and F’ type stars.

• Supervised by Dr. Santosh Joshi.
• TESS Lightcurve Data is used to generate clean lightcurves with 5-sigma clipping to removing the jumps and outliers and LombScargle algorithm was used to find the dominating pulsating frequencies.
• I have reduced the spectroscopic data taken from 2.0-m IUCAA Girawali Observatory of Be stars by writing a python script to study variations in Equivalent Widths and I am using synthetic spectrum to find projected rotational velocity.

Pluto’s enigmatic atmosphere based on stellar occultation.

• The event was successfully observed in the H-band with TIRCAM2 mounted on the 3.6-m DOT, while the optical observations were made in I-band with 1.3-m DFOT.
• Previous observations has shown increase in atmospheric pressure between 1988 and 2016, due to sublimation of N₂ ice in the glacier of Sputnik Planitia on Pluto which expanded its atmosphere and current climatic models predict that this expansion should stop by now, which is in agreement with our observation.

Observation of Stellar occultations by an Asteroid.

• As a part of the team, I have observed and analyzed lightcurves of 14 Stellar occultations out of which 9 events were positive and 5 were negative.
• The data reduction was done with PSF photometry using Limove, Pymovie and PyOTE to find their time of disappearance and reappearance.
• Reports were submitted to International Occultation Timing Association.

DSLR photometry of a δ Scuti variable star.

• RGB RAW data were split into individual R, G and B channel.
• Dark, bias and flat corrections were made to the raw data.
• Instrumental magnitudes for comparison and target star were reduced by IRIS.
• The DSLR green channel magnitudes were converted to Standard V-magnitude.
• Lightcurve was submitted to the AAVSO database and the variability period was reduced to be 2.513 hours.

X-Ray study of Active Galactic Nuclei. -- M.Sc. Project

• We have surveyed the available data for AGN of various classes from Chandra Data Archive.
• The corresponding X-ray data from the Chandra Data Archive was obtained and the X-ray spectra were extracted and preprocessed using Chandra Interactive Analysis of Observations (CIAO) which has also integrated by writing a BASH script to do the task in one go, corrected it for red-shift by writing python scripts.
• We found some common features which are quite easily visible from the spectrum and studied atomic radiative and collisional processes which leads to emission of X-rays in astrophysical sources.

TESS General Investigator

• TESS Photometry Of A Sample Of SB2 Eclipsing Binaries.
• cycle: C5 and C6, as Co-I. PI: Prof. Krzysztof Hełminiak.

Rotational state of the elusive Lucy targets

• 2-m Himalayan Chandra Telescope (HCT).
• cycle: HCT-2020-C3, as Co-I. PI: Prof. N. M. Ashok.

Stellar occultations by Dwarf Planets, TNOs and Centaurs

• 3.6-m Devasthal Optical Telescope (DOT).
• cycle: DOT-2020-C2, as Co-I. PI: Prof. N. M. Ashok.

Stellar occultations by Pluto

• 3.6-m DOT, 1.3-m Devasthal Fast Optical Telescope (DFOT) & 2-m HCT.
• cycle: Director’s Discretionary Time-2020, as Co-I. PI: Prof. N. M. Ashok.

31 nights of observation with 20-cm Robotic telescope.

• 20-cm Robotic telescope of Akashmitra Mandal with small projects in amateur astronomy like stellar photometry of short-period variable stars (8-11 mag), astrometry of double stars as well as high proper motion targets and stellar occultations by asteroid

XLI Meeting of the Polish Astronomical Society