Curriculum Vitae

Tathagata Saha, Postdoctoral Fellow · Inter-University Centre for Astronomy and Astrophysics, Pune

Download PDF
Positions
2025-

Postdoctoral Fellow

Member of the German eROSITA Consortium compact objects working group.

at Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, IN

galaxy interactions in the Local Group and their effects the stellar evolution -- an X-ray view.

with Prof. Chandreyee Maitra

2024-2026

Guest Scientist

at Leibniz-Institute for Astrophysics Potsdam, DE

with Dr. Mirko Krumpe

2023-2024

Pre-doctoral research Assistant

at Leibniz-Institute for Astrophysics Potsdam, DE

with Dr. Mirko Krumpe

funded by Deutsches Zentrum für Luft- und Raumfahrt

2019-2024

Ph.D. (Dyplom Doktorski) in Natural Sciences in the discipline of Astronomy

at Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences, Warsaw, PL

with Prof. dr. hab. Alex G. Markowitz

funded by Narodowe Centrum Nauki

Education
2019

Master of Science, Physics

with specialization in Astrophysics and Cosmology

Presidency University, Kolkata

2017

Bachelor of Science (Honours), Physics

with specialization in Astrophysics and Cosmology

Presidency University, Kolkata

Publications

Full list on NASA/ADS and Google Scholar. See also the Research page for selected papers.

2026

A break in the X-ray loudness of Markarian 590: evidence for an AGN spectral state transition?

Palit, B., Rozanska, A., Markowitz, A., ...Saha, T. et al. Accepted in ApJS · ADS

2026

eRASSU J043115.8-711730: The first pulsating symbiotic super-soft X-ray source in the Magellanic Bridge

T. Saha, C. Maitra, P. Charles, F. Haberl et al. · Accepted in MNRAS · in press · ADS

2026

A changing-look Seyfert discovered by eROSITA reveals a two-component broad-line region

Markowitz, A., Krumpe, M., ...Saha, T. et al. · A&A, 710, A222 · ADS

2025

Multiwavelength study of extreme variability in LEDA 1154204: A changing-look event in a type 1.9 Seyfert

T. Saha, A. Markowitz, D. Homan, M. Krumpe et al. · A&A, 702, A28 · ADS

2025

The Close AGN Reference Survey (CARS). Long-term spectral variability study of the changing look AGN Mrk 1018

T. Saha, M. Krumpe, A. Markowitz et al. · A&A, 699, A205 · ADS

2024

eROSITA Detection of a Cloud Obscuration Event in the Seyfert AGN EC 04570-5206

Markowitz, A., Krumpe, M., ...Saha, T. et al. · A&A, 684, A101 · ADS

2024

An X-ray flaring event and a variable soft X-ray excess in the Seyfert LCRS B040659.9-385922 as detected with eROSITA

Krishnan, S., Markowitz, A., ...Saha, T. et al. · A&A, 691, A19 · ADS

2023

Discovery of the luminous X-ray ignition eRASSt J234402.9-352640; I. Tidal disruption event or a rapid increase in accretion in an AGN?

Homan, D., Krumpe, M., Markowitz, A., Saha, T. et al. · A&A, 672, A167 · ADS

2022

Inferring the morphology of the AGN torus using X-ray spectra: A reliability study

T. Saha, A. Markowitz and J. Buchner · MNRAS, 509, 5485 · ADS

2020

The Variable and Non-variable X-Ray Absorbers in Compton-thin Type II Active Galactic Nuclei

Laha, S., Markowitz, A., Krumpe, M., Nikutta, R., Rothschild, R., Saha, T. · ApJ, 897, 66 · ADS

Academic Service and Organization
2027

International Conference on X-ray Polarization from Compact Objects 2027

Scientific Organizing Committee,
IUCAA, Pune

2023

SALT Conference 2023

Local Organizing Committee,
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences

___

Reviewer

AAS Journals

Student Supervision

Ms. Fida Fathima (M.Sc., Presidency University, Kolkata)

Ms. Mahek Patel (Visiting Student at IUCAA, Florida State University)

Mr. Ayon Mondal (Ph.D. Candidate, University of Maryland, Baltimore County)

Skills & Tools

Astronomy

XSPEC Sherpa eSASS (eROSITA) SAS (XMM-Newton) HEASoft CIAO BXA

Data Science Tools

Visualization and webtools: Matplotlib, Seaborn, Streamlit Statistical analyses and data wrangling: NumPy, SciPy, Pandas, Ultranest, Astropy AI and Machine Learning: ScikitLearn, TensorFlow, Langflow, OpenRouter

Other

LaTeX Git