Indian Centre for Space Physics, Kolkata
Organizes

4th Young Astrophysicists of Today’s India (YATI4)

14 - 16 October, 2026

Scientific Programme

*subject to minor changes

Day 1 (14th October 2026)

Breakfast + visit to Museum of Astronomy and Space Science (8:00 AM- 9:30 AM)
Registration (08:30 - 09:45 AM)
Overview and Welcome sessionSession duration 9:55 -10:00 AM
TimeSpeakerTitle of the Talk
09:45-09:55 AM Sourav Palit Overview of YATI 4
09:55-10:00 AM Sandip K Chakrabarti Welcome speech
Session 1High Energy AstrophysicsSession Duration 10:00 - 11:30 AM
ChairTimeSpeakerTitle of the Talk (Click on title to see the abstract)
Prof. Sandip K. Chakrabarti 10:00-10:25 AM Banibrata Mukhopadhyay Some modern issues of high energy astrophysics and resolving by magnetic fields
10:25-10:45 AM Arghajit Jana Changing-look AGNs reveal how Eddington ratio regulates the X-ray emission in AGNs
10:45-11:00 AM Rudrani Kar Chowdhury TDEs on FIRE: Co-Evolution of Tidal Disruption Event Rates and Host Galaxies across Cosmic Time
11:00-11:15 AM Abhrajit Bhattacharjee Spectral properties of accretion flows around rotating black holes
11:15-11:30 AM Sayantan Bhattacharya Short Thermonuclear Bursts at High Accretion Rates: Curious Case of Cygnus X-2
Tea Break + Conference Photo session (11:30 AM- 12:00 PM)
Session 2High Energy AstrophysicsSession Duration (12:00 - 01:30 PM)
ChairTimeSpeakerTitle of the Talk (Click on title to see the abstract)
Indranil Chattopadhyay 12:00-12:25 PM Sandip K. Chakrabarti My trajectory from GTR to SPACE Instrumentation
12:25-12:45 PM Saswati Roy Gravitational Deflection of Light in Black-Hole Spacetimes: A Material Medium Perspective
12:45-01:00 PM Pritam Banerjee Relativistic Tidal Disruption of Stars: Significance, Tools and Outcomes
01:00-01:15 PM Sourav Sutradhar Nonlinear Waves in Baryonic Gas Clouds under Quantum Dark Matter Effects
01:15-01:30 PM Shatanik Bhattacharya Physics with SPANDA: A Rapid Automated Pipeline for Seismic Inference of Red Giants
Lunch Break+Poster session (1:30 -2:30 PM)
Session 3High Energy AstrophysicsSession Duration (02:30 - 04:00 PM)
ChairTimeSpeakerTitle of the Talk (Click on title to see the abstract)
Debarati Chatterjee 02:30-02:55 PM Indranil Chattopadhyay TBD
02:55-03:15 PM Indrani Banerjee Fundamental Physics Prospects with the Event Horizon Telescope
03:15-03:30 PM Debjit Chatterjee Long-term Evolution Study of NGC 3516 using X-ray observations
03:30-03:45 PM Toushif Alam Shaping the Galactic Centre: Hydrodynamical Simulations of Sgr A* Feedback
03:45-04:00 PM Meghanil Sinha Durgapal Gravastar solutions
Tea Break + Poster session (4:00 - 4:30 PM)
Session 4High Energy AstrophysicsSession Duration (04:30 - 06:15 PM)
ChairTimeSpeakerTitle of the Talk (Click on title to see the abstract)
Banibrata Mukhopadhyay 04:30-04:55 PM Debarati Chatterjee Multi-Messenger Astronomy as a tool to probe the interior of Neutron Stars
04:55-05:15 PM Sutirtha Sengupta Dense and Dusty environments around Type IIP supernova: recent advances and future directions with AI/ML
05:15-05:30 PM Himadri Ghosh Spectral and Timing Properties of Accretion Around Black Holes: Analytical Modelling and Numerical Simulations
05:30-05:45 PM Shubhajit Saha Toward Improved Drag-Force Models during Common-Envelope Evolution
05:45-06:00 PM Subhankar Kar A century of the study of Accretion processes around stars and compact objects
06:00-06:15 PM Ashish Joshi Universality Class of Black Hole Accretion Across the Mass Scale
Dinner (07:00 - 8:30PM)

Day 2 (15th October 2026)

Breakfast + visit to Museum of Astronomy and Space Science (08:00-09:30 AM))
Session 5CosmologySession Duration(10:00-11:15 AM)
ChairTimeSpeakerTitle of the Talk (Click on title to see the abstract)
Prasad Subramanian 10:00-10:25 AM Patrick Das Gupta Early formation of supermassive black holes
10:25-10:45 AM Swastik Bhattacharyya GWs as probes of massive compact objects
10:45-11:00 AM Avijit Chowdhury Black Holes in Dark Matter Environments: Ringdown and Tidal Response
11:00-11:15 AM Chiranjeeb Singha Tidal Deformation of Black Holes in Lovelock Gravity
Tea Break + Poster session (11:15 AM - 11:45 AM)
Session 6VirtualSession Duration(11:45 AM - 1:15 PM)
ChairTimeSpeakerTitle of the Talk (Click on title to see the abstract)
Sandip K Chakrabarti 11:45 AM -12:05 PM Santosh Joshi Ground and Space based Asteroseismic Exploration of the Field and Open Star Clusters from ARIES
12:05 - 12:20 PM Prasanta K Das Reheating and inflationary dynamics driven by an inverse tangent potential
12:20 - 12:35 PM Biplob Sarkar Characterizing the Energy-dependent Temporal Variability of MAXI J1803-298 with AstroSat and NICER
12:35 - 01:15 PM TBD TBD
Lunch Break+Poster session (01:15-02:15 PM)
Session 7Upper-atmosphere and Space WeatherSession Duration(2:15-3:45 PM)
ChairTimeSpeakerTitle of the Talk (Click on title to see the abstract)
Patrick Das Gupta 02:15-02:40 PM Prasad Subramanian Turbulence in space plasmas
02:40 - 03:00 PM Sujay Pal Probing the Global Electric Circuit from Fair Weather to Space Weather: Observations and Modelling
03:00 - 03:15 PM Soumyaneal Banerjee Study on the Venusian atmospheric thermal structure: A comparative analysis between observations and models
03:15 - 03:30 PM Shibotosh Biswas Pinching of ICME Flux Rope: Unprecedented Multipoint Observations of Internal Magnetic Reconnection during Gannon's Superstorm
03:30 - 03:45 PM Sayak Chakraborty PDF Modeling the Long-Term Variability of the D-Region Ionosphere During Solar Cycle 24
Tea Break + Poster session (3:45 - 4:15 PM)
Session 8Upper-Atmosphere and Space WeatherSession-Duration: 4:15 - 5:15 PM
ChairTimeSpeakerTitle of the Talk (Click on title to see the abstract)
Prasad Subramanian 4:15 - 4:30 PM Sourav Palit Multi-Layer Studies of the Near-Earth Environment: Gravity Waves, Ionosphere, and Solar Radiation
4:30 - 4:45 PM Tamal Basak Sub-ionospheric VLF Science @ ICSP: Resent results
4:45 - 05:00 PM Tanmay Das PDF Direction-Dependent Ionospheric RM/FR Modelling for GMRT
5:00 - 5:15 PM Taraknath Bera Ph Detection of Pre-Seismic Ionospheric Perturbations over the Indian Plate in November 2025 Using VLF Signals
Panel Discussion
TimePanelistsTopic
05:15-06:00 AM Sandip K. Chakrabarti, Banibrata Mukhopadhyay, Patrick Das Gupta, Prasad Subramanian, Indranil Chattopadhyay, Debarati Chatterjee Artificial Intelligence: Boon or Bane?
Museum Visit (6:00 – 7:00 PM)
Dinner (7:00 – 08:30 PM)

Day 3 (16th October 2026)

Breakfast + visit to Museum of Astronomy and Space Science (08:00-09:30 AM)
Session 9Observational AstronomySession-Duration(10:00 - 11:30 AM)
ChairTimeSpeakerTitle of the Talk (Click on title to see the abstract)
Sabyasachi Pal 10:00-10:25 AM Prantik Nandi Multiwavelength Evidence for a Changing-look Event Triggered by a Tidal Disruption Event in NGC 3822
10:25-10:45 AM Devendra Bisht Science with the 0.61-m VASISTHA Telescope at IERCOO: Results and Future Prospects
10:45-11:00 AM Sridhar Gajendran Overview and Initial Results from the LIGHT project
11:00-11:15 AM Kuldeep Belwal Time-series Photometric Detection and Physical Characterization of Variable Stars in Four Intermediate- to Old-age Galactic Open Clusters
11:15-11:30 AM Debangan Maji Unveiling the Galactic Centre with New, Deep, Wide-field Radio Observations
Tea Break + Poster session (11:30 AM- 12:00 PM)
Session 10High Energy AstrophysicsSession-Duration(12:00 - 1:20 PM)
ChairTimeSpeakerTitle of the Talk (Click on title to see the abstract)
Devendra Bisht 12:00-12:25 PM Sabyasachi Pal A Study of Different Subclasses of Irregular-Morphology Radio Galaxies
12:25-12:45 PM Somnath Dutta Witnessing the dawn of a new solar system through jets and outflows to reveal early planet formation
12:45-01:00 PM Prerana Biswas Investigating the Spectral Properties of Dual Nuclei in Galaxy Mergers from the GOTHIC survey: Supermassive Black Hole Growth, metal enrichment and Dual AGN
01:00-1:15 PM Mohit S Bisht Ph >A Dusty Nova in the LMC: Unraveling Its Evolution Through Lightcurve and Spectra
1:15-1:30 PM Ayan Biswas Bridging Low Mass and High Mass Magnetospheres: Radio and Spectropolarimetric Study of the Strongly Magnetic M dwarf CW UMa
Closing of Conference
TimeSpeakerTitle of the Talk(Click on title to see the abstract)Chair / Note
1:30-1:40PMTamal BasakVote of Thanks—
Lunch Break+Poster session (1:40 PM-2:30 PM)
2:30 – 6:30 PM Move to IERCOO Observatory, Sitapur, West Midnapore (Optional)
Tea Break (6:30 PM- 7:00 PM)at IERCOO
Night sky watching at IERCOO (Optional)

Poster Presentations

No.NameTitle of the Presentation (Click on title to see the abstract)
1Ayan DasPlanet 9 effect On kuper Belt Object
2Hardik Sher SinghChromatic noise reverses the band preference of the Indian Pulsar Timing Array: A standalone gravitational wave sensitivity analysis
3Amit Kumar ShrivasRADIO Observations of Hub filament Systems in Star Formation
4Sayak ChakrabortyStudy of Coronal Loop Structures during the 2024 Total Solar Eclipse: Preliminary Results
5Akhilesh M SDo Spider and Filament-type Superclusters Occupy Different Large-Scale Environments?
6Ayan IslamDynamical Constraints on a Hypothetical Planet Nine through N-Body Simulations
7Palla Venkat Sai GaneshExperimental detection of the neutral hydrogen 21-cm line using a low-cost SDR-based radio telescope
8Atharva ShindeInvestigating Twin Star Equation of States in Light of Recent Astrophysical Observations
9Anindya Sundar ChattarajOn Thermodynamic-Gravitational Scalar Couplings and Brans-Dicke Constraints on the Chandrasekhar Mass
10Rakhi SuklanInvestigating Closed Coronal Structures Through J- and U-Type Solar Radio Bursts
11Jaskirat SinghGaia DR3-based Identification of Extra-tidal Stars in the Globular Cluster NGC 5272 (M3)
12Pranav R IyengarSpatial analysis of PAH molecules in the Pillars of Creation using JWST
13Pankaj Sharma Accretion Disc and Reflection probes during the 2025 Outburst of 4U 1630-472
14Swarnendu JanaUnveiling 4U 1812−12: Spectral and Timing Insights from NICER and NuSTAR
15Amber Krishna KhaitanEvolutionary dynamics of rotating Bose-Einstein condensate dark matter halos
16Shayak BarhAccretion flow variability in SAX J1808.4-3658 with X-ray spectral-timing
17Bharti KaushikThe Spectator Field Nexus: Connecting Primordial Black Holes, Gravitational Waves and Baryogenesis
18Arijita ChakrabortyToward Sharper Multi-Messenger Triggers: Modelling Atmospheric Gamma-Ray Albedo effect in GRB Localization and Polarimetry
19Aratrika GhoshUnderstanding low X-ray polarization of HMXB pulsars through atmospheric temperature inversion and vacuum birefringence
20Rahul ThakurPhysics-Informed Machine Learning for Anomaly Detection and Candidate Transit Identification in TESS Light Curves
21Anjan PaulElectron scattering in realistic solar wind plasma

Instructions for Poster Presenters

  • Please place your poster in the designated spot as soon as you arrive. It should stay there until October 16th, after which you can take it down. We won't be responsible for the poster thereafter.
  • Your poster must be fit in 2X4 Feet area.