Academic Positions Held:​​
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Research Astrophysicist (April 2021 – Current)
Monterey Institute for Research in Astronomy (MIRA), Marina, California, USA
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Postdoctoral Fellow (July 2018 – July 2020)
Physical Research Laboratory (PRL), Ahmedabad, India
[Fellowship funded by Department of Space, Govt. of India]
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Research Associate Fellow (July 2017 – June 2018)
Aryabhatta Research Institute of observational sciencES (ARIES), Nainital, India
[Fellowship funded by Department of Science and Technology, Govt. of India]
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Academic Qualifications:
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Ph. D. (Physics - Astronomy & Astrophysics - 2019):
Aryabhatta Research Institute of Observat
ional Sciences (ARIES), Nainital, Uttarakhand, India
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Thesis -- “Evolution of Magnetic Activities in Late-Type Stars”
[Ph.D. Thesis Defended on August 2018, Ph.D. Degree awarded on 4th March 2019]
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M.Sc. (Physics - 2011, 1st Class 1st -- Gold Medalist):
Assam University, Silchar (A Central University), Assam, India
[Specialization: Astrophysics]
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B.Sc. (Physics - 2009):
Ram Krishna Mission Vivekananda Centenary College, Raharah, Kolkata, West Bengal, India
(under University of Calcutta)
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Higher Secondary Education (Science - 2006):
Akrumoni Coronation Institution, Malda, West Bengal, India
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Secondary Education (Science, Arts, Languages - 2004)
Malda Zilla School, Malda, West Bengal, India
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Primary Education (Science, Arts, Languages - 1998)
Khelaghar, Malda, West Bengal, India
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Academic Awards & Fellowships:
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Gold Medal in Physics (M. Sc.)
April 2012
Became the 1st Class 1st in Physics, Assam University, Silchar. The Gold Medal & the Merit certificate were awarded by Governor of Assam, India.
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Junior Research Fellowship
July 2011
Qualified the Joint Entrance Screening Test (JEST) examination 2011 and the Interview
at ARIES. Awarded a fellowship by the Department of Science and Technology (DST), Govt. of India.
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Senior Research Fellowship
July 2013
Qualified the Review Examination at Aryabhatta Research Institute of observational
sciencES (ARIES), Nainital, India. Awarded a fellowship by Department of Science and Technology (DST), Govt. of India.
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Post-Doctoral Fellowship
July 2017
Qualified the Interview at Aryabhatta Research Institute of observational sciencES
(ARIES), Nainital, India. Awarded a fellowship by Department of Science and Technology (DST), Govt. of India.
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Post-Doctoral Fellowship
July 2018
Qualified the interview at Physical Research Laboratory (PRL), Ahmedabad, India.Awarded a fellowship by Department of Space (DOS), Govt. of India
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Skills & Professional Experiences:
X-ray & UV observations:
I have observed active ultra-fast rotators as the Principal Investigator in X-ray, UV, and optical bands from the AstroSat satellite. Recently four proposals as Principal Investigator (PI) from AstroSat Satellites have been accepted in the Announcement of Opportunity Cycles AO-02, AO-04, and AO-07, and the observations have been carried out recently.
Optical observations:
Photometric, spectroscopic, and polarimetric observations of ~235 nights have been performed using 3.6-m ARIES Devasthal Optical Telescope (DOT), 1.3-m ARIES Devasthal Fast Optical Telescope (DFOT), 1.2-m Mount Abu Infra-Red Observatory (MIRO), 1.04-m ARIES Sampurnand Telescope (ST), and 0.9-m MIRA Oliver Observing station (OOS).
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Scientific Data Handling:
I can efficiently handle X-ray, UV, & optical data from space-based observatories including XMM-Newton, Swift, Chandra, AstroSat, NICER, MAXI, ROSAT, Suzaku, Kepler, Hipparcos, and other satellites. I also have good expertise in handling optical and IR data, with the experience of dealing with photometric, spectroscopic, and polarimetric data from several ground-based observatories viz. Sampurnanand Telescope, Devasthal Fast Optical Telescope, IUCAA Girawali Observatory Telescope, Goddard Robotic Telescopes, Ege University Observatory Telescopes, Himalayan Chandra Telescope, Very Large Telescope/NACO, Oliver Observing station, ASAS, SuperWASP, etc.
Scientific Packages & tools:
I do programming mostly on Python. Besides this I use different programming languages such as IDL, Unix Shell, Fortran, tcl/tk, IRAF, C++, R, etc.
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For X-ray data reduction and analysis I use HEASOFT, FTOOLS, CIAO (for Chandra), SAS (for XMM-Newton) softwares. For optical and IR data reduction I use SCISOFT, IRAF, DAOPHOT, Anaconda packages. For plotting I use Python, Gnuplot, SM, and pgplot. Besides I use other softwares like LaTeX, Windows Office, Open Office, etc.
I have made automatic flare detection algorithms and python code from Kepler data. I also made codes for automatic reduction and analysis of a large amount of X-ray data.
Operating systems:
Unix/Linux, Windows, Mac​