J. Majumdar · Research activityPreprint, manuscript no. 26xx.134xx

Observing, teaching and talking. A log of research activity

J. Majumdar1

1 Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

Last revised 24 October 2026

ABSTRACT

I report teaching (Sect. 1), awarded telescope time (Sect. 2, Table 1), talks and posters (Sect. 3, Table 2) and schools attended (Sect. 4). Ground-based allocations total 119.5 hours on six telescopes on four continents, supplemented by nine Swift target-of-opportunity triggers.

1.Teaching

Courses taught at the Astronomical Observatory, University of Warsaw.

2.Telescope time

Table 1. Awarded ground-based telescope time.
TelescopeSiteHours
Kottamia Astronomical Observatory (KAO)Egypt35
Baldone Schmidt Telescope (BST)Latvia30
University of Zielona Góra Observatory (UZO)Chile30
Joan Oró Telescope (TJO)Spain10
Liverpool Telescope (LT)La Palma, Spain8.5
Las Cumbres Observatory 0.4 m (LCO)global network6
Total119.5

2.1.Space-based triggers

Target-of-opportunity observations with the Neil Gehrels Swift Observatory (RIP) of PKS 2208−137, Gaia DR3 277817015341, OQ 334, AT 2024agoe, AT 2025acft, SDSS J080622.15+21262, AT 2026gz, GB6 J0742+5444 and AT 2026ava.

3.Talks and posters

Table 2. Contributed talks and posters.
DateContribution
Sep 2026AT 2020xys: Discovery, classification and multi-wavelength observations of a Bowen fluorescence flare in an AGN. Talk, HERA 2026, Black Holes at Different Flavours, Warsaw, Poland
Sep 2026SN 2019qem: A luminous Type IIn supernova seen through three years of interaction. Talk, ePESSTO+ meeting, Cardiff, UK
Sep 2026SN 2019qem: A long-lived, luminous Type IIn supernova with sustained circumstellar interaction. Talk, 17th Gaia Science Alerts and ACME Time-Domain Workshop, Fréjus, France
Sep 2026New features in BHTOM3 - data services, photometry, spectroscopy. Talk, same meeting
Aug 2026BHTOM: A platform for coordinated time-domain studies of accreting supermassive black holes. Poster, Tidal Disruption Events and Nuclear Transients in Crete vol. 2, Heraklion, Greece
Mar 2026BHTOM: Standardized, automated time-domain follow-up from a global volunteer telescope network. Talk, RAPID Response, Caltech, Pasadena, USA
Jun 2025Investigating the X-ray spectral evolution in Circinus X-1 using XSPECT/XPoSat. Project and talk, XSPECT workshop, URSC, ISRO, Bengaluru, India
Jan 2025Multi-wavelength study of a transitioning blazar OP 313. Talk, 7th Regional Science and Technology Congress, Malda College, India
May 2024Photometric study of an open cluster Berkeley 65. Project and talk, ARIES Training School in Observational Astronomy, Nainital, India
Jun 2022Quantum biology. Talk, Students’ Seminar, Malda College, India

4.Meetings, schools and workshops

Table 3. Meetings and schools attended.
DateMeetingPlace
Oct 2026Rubin-LSST Polish Consortium Annual MeetingWrocław, Poland
Sep 2026HERA 2026, Black Holes at Different FlavoursWarsaw, Poland
Sep 2026ePESSTO+ meetingCardiff, UK
Sep 202617th Gaia Science Alerts and ACME Time-Domain WorkshopFréjus, France
Aug 2026Tidal Disruption Events and Nuclear Transients in Crete vol. 2Heraklion, Greece
Mar 2026RAPID Response, Hot-wiring the Next Generation of Time-Domain ScienceCaltech, USA
Mar 2026EDUCADO-MWGaiaDN training school on astro-AI and MLGhent, Belgium
Jun 2025National Workshop on Hands-on Data Analysis of XSPECT on-board XPoSatBengaluru, India
Apr 2025Second International Liquid Mirror Telescope Workshop (ILMT-2025)Nainital, India
Jan 20257th Regional Science and Technology CongressMalda, India
Nov 2024High Energy Astrophysics Workshop (local organising committee)Varanasi, India
Apr 2024ARIES Training School in Observational AstronomyNainital, India
Jun 2023IIA Summer Schoolremote
Apr 2023Space science and Technology AwaReness Training (START)Varanasi, India
May 2022Summer School in Astronomy and Astrophysics, IUCAAPune, India
Jul 2021International Summer Program, University of OsakaJapan
Jan 2021Workshop on Space Technology and Its Application, ISROIndia
Dec 2020SciPy India 2020, FOSSEE and IIT BombayIndia
Aug 2020Webinar on Recent Advancements in AstrophysicsKaliyaganj College, India