Publications

Full list on NASA/ADS.

2026
Accepted for publication in The Astrophysical Journal Supplement

A break in the X-ray loudness of Markarian 590: evidence for an AGN spectral state transition?, 2026

B. Palit, A. Rozanska, A. G. Markowitz,...,T. Saha et al.

2026
Accepted for publication in MNRAS

eRASSU J043115.8-711730: The first pulsating symbiotic super-soft X-ray source in the Magellanic Bridge, 2026

T. Saha, C. Maitra, P. Charles, F. Haberl et al.

2026
A&A, 710, A222

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

Markowitz, A., Krumpe, M.,...Saha, T.et al.

2025
A&A, 702, A28

Multiwavelength study of extreme variability in LEDA 1154204: A changing-look event in a type 1.9 Seyfert, 2025

T. Saha, A. Markowitz, D. Homan, M. Krumpe et al.

2025
A&A, 699, A205

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.

2024
A&A, 684, A101

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

Markowitz. A., Krumpe. M, ....Saha, T.et al.

2024
A&A, 691, A19

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.

2023
A&A, 672, A167

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

Homan, D., Krumpe M., Markowitz, A., Saha, T.et al.

2022
MNRAS, 509, 5485

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

T. Saha, A. Markowitz and J. Buchner

2020
ApJ, 897, 66

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.