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ASI 2019 ABSTRACT BOOK XXXVII MEETING OF THE ASTRONOMICAL SOCIETY OF INDIA CHRIST (DEEMED TO BE UNIVERSITY), BENGALURU 18 - 22 FEBRUARY 2019 Table of Contents Title Page No. 19th February, 2019 Parallel Session – Stars, ISM and the Galaxy I 1 Shantanu Rastogi - Interstellar molecules in understanding astrophysical environments(I) 1 Ekta Sharma - Molecular filament formation and filament-hub interaction: LDN 1172/1174 1 dark nebula Eswaraiah Chakali - Probing magnetic fields at the footprints of the bipolar bubbles - a case 2 study towards Sh201 with JCMT/SCUBAPOL2 Gulafsha Choudhury - Study of Magnetic Field Geometry of Some Star Forming Clouds 2 Anju Maurya - Study of nitrile substituted PAHs in relation to mid-infrared emission bands 3 Parallel Session – Extragalactic Astronomy I 3 Apurba Bera - Atomic hydrogen and star formation in galaxies at intermediate redshifts 3 Pranav Kukreti - Study of star formation in the EGS at z ~ 1 using the GMRT 4 Poonam Chandra - Inhomogeneous shock structure in supernovae revealed via low 4 frequency radio observations Mousumi Mahato - Multifrequency radio properties of Giant radio quasars using GMRT 5 Amitesh Omar -Observations of high redshift radio galaxies with 3.6-m Devasthal Optical 5 Telescope Ankit Singh - Study of filament galaxies in EAGLE simulation 6 Parallel Session – General Relativity and Cosmology I 6 Avinash Singh - Growth of Structure in the Presence of Perturbed Tachyon Dark Energy 6 Atanu Guha - Constraints on light Dark Matter fermions from relic density consideration, 7 SN1987A cooling and the role of Tsallis statistics Madhurima Choudhury - Extracting the 21cm Global Signal using artificial neural networks 7 Suvedha Naik - Probing primordial features using red-shifted 21 cm line 8 Prateek Gupta - Detection possibilities of 'Galaxy groups' using Numerical modelling of 8 Radio emission & Large Scale Cosmological Simulation Soumen Mondal - On the properties of dissipative shocks in relativistic accretion flows 9 around black holes. Table of Contents Parallel Session – Stars, ISM and the Galaxy II 9 Yogesh Joshi - Optical characterization and Radial velocity monitoring of stellar candidates 9 having Exoplanet or low-mass EB companion Soumya Sengupta - Model transmission and Reflected Spectra of Exoplanets 10 Aritra Chakrabarty - Precise Transit Photometric Observation of the Extra-solar Planets 10 Using Indian Astronomical Facilities Shashanka Gurumath - Study on Angular Momentum of G-Stars and Their Exoplanets 11 Gayathri Viswanath - Star-Planet Interactions: a study in UV using GALEX and GAIA 11 Namitha Issac - Initial phases of high-mass star formation: A case study of Extended Green 12 Object, G12.42+0.50 Parallel Session – Extragalactic Astronomy II 12 Amit Shukla - Implications of observed short-timescale gamma-ray variabilities on blazars 12 jets Jitesh V - Long-term X-ray spectral variability of the ultra-luminous X-ray source M81 X-6 13 Rukaiya Khatoon - The flux distribution of individual blazars as a key to understand the 13 dynamics of particle acceleration Rudrani Kar Chowdhury - Effect of AGN feedback on the simulated galaxy groups and 14 clusters Bhoomika Rajput - Gamma-ray flux variability and spectral characteristics of Fermi blazars 14 Krishna Mohana - Multiwavelength timing studies of blazar subclasses 15 Parallel Session – General Relativity and Cosmology II 15 Archana Pai - First Gravitational Wave transient catalog 15 Haris MK - Identifying strongly lensed gravitational wave signals from binary black hole 16 mergers Ashish Meena - Gravitational Lensing of Gravitational Waves 16 Suvedha Naik - Probing primordial features using red-shifted 21 cm line 16 Abhimanyu Susobhanan - The Indian Pulsar Timing Array Experiment 17 20th February, 2019 Plenary Session 1 - Early Universe and Epoch of Reionisation 18 Ravi Subrahmanyan - Towards detecting radio signatures of cosmic dawn 18 Tirthankar Roy Choudhury - Epoch of reionization: probing cosmology and the first stars 18 Harvinder Kaur Jassal - Dark energy: Current status and future prospects 18 Thesis Presentation I 19 Table of Contents Tanmoy Chattopadhyay - Justice Oak Best thesis award for 2016 19 Observational Aspects of Hard X-ray Polarimetry Reju John - Study of Energy Distribution in Evolving Dynamical States of Galaxy Clusters and 19 Groups Somnath Dutta - Multi-Wavelength studies on galactic H II regions 20 Soumavo Ghosh - Dynamical Imprint of Dark Matter Halo and Interstellar Gas on Spiral 20 Structure in Disk Galaxies Swagat Das - Observational Studies of Galactic Star Forming Regions 21 Veena VS - IRDCs to Star Clusters: In Depth Study of Structure, Evolution and Kinematics of 21 Few Southern Massive Star Forming Regions 21st February, 2019 Plenary Session 2 - ASTROSAT Science results 22 Dipankar Bhattacharya - AstroSat observations of Compact Stars 22 Koshy George - Ultraviolet view of star formation quenching in galaxies 22 Ritaban Chatterjee - Detailed Time Variability Properties of Blazars Using AstroSat 22 Thesis Presentation II 23 Vedavathi P - Emission line and continuum variability study of active galaxies for redshift 0 23 Ajanta Datta - Waves in Solar Atmosphere and their Role in Dynamics of the Corona 24 Gopal Hazra - Understanding the behavior of the Sun's large scale magnetic field and Its 24 relation with the meridional flow Vaibhav Pant - Dynamics of coronal transients as seen from space observations 25 Parallel Session – Stars, ISM and the Galaxy III 25 Bhaswati Mookerjea - Photon Dominated Regions: The secrets they reveal (I) 25 Tapas Baug - Influence of stellar wind of Galactic Wolf-Rayet stars on parent molecular 26 clouds Suchira Sarkar - Vertical distribution of stars and flaring in the Milky Way 26 Deepak - The Galactic Halo: Stellar Populations and Formation History 27 Bharat Kumar Yerra - Identifying Li-rich giants from LAMOST low resolution spectra using 27 machine learning Parallel Session – Extragalactic Astronomy III 28 Smitha Subramanian - Tracing the connection between compact spheroids in early Universe 28 with the local Universe massive bulges (I) Chayan Mondal - UVIT view of IC 2574 : Are the star formation driven by expanding and 28 colliding shells? Table of Contents Chrisphin Karthick - Photometric Study of Starburst Galaxy NGC 2403 29 Prasanta Nayak - UVIT-HST-GAIA study of star cluster KRON 3 in the Small Magellanic Cloud: 29 A cluster with a large spread in metallicity Ashish Devaraj - Identification of quasar candidates behind the SMC fields observed by UVIT 30 Parallel Session – General Relativity and Cosmology III 30 Ranbir Sharma - Dark energy equation of state reconstruction by Principal Component 30 Analysis Arun Kenath - Alternate to Dark Matter: MOND, MONG or MORG 30 Sangita Chatterjee - Impact of accretion disk on the gravitational wave-profile emitted 31 from binary merger Kazuyuki Furuuchi - Weak Gravity Conjecture and Bottom-Up Inflation Model Building 31 Parallel Session – Instrumentation and Techniques I 32 Ravindra B - Imaging Instruments for Large Solar Optical Telescopes (I) 32 Ankala Raja Bayanna - Fizeau Mask Interferometry of Solar Features using the Multi 32 Application Solar Telescope at the Udaipur Solar Observatory Govinda KV - Concept design of retractable dome for the proposed 2m class National Large 33 Solar Telescope Hemanth Pruthvi - Solar Scanning Polarimeter at Kodaikanal Tower-tunnel Telescope for Ca 33 II 854.2 nm line Parallel Session – Stars, ISM and the Galaxy IV 34 Shejeelammal J - Chemical and Kinematic analysis of metal-deficient Barium stars 34 Raghubar Singh - Spectroscopic and asteroseismic study of Li-rich giants 35 Meenakshi P - Abundance of neutron-capture elements in extrinsic Carbon-Enhanced 35 Metal-Poor stars Devika Divakar - Study of Horizontal Branch stars in the faint Milky Way satellite galaxies 36 Gayathri Raman - Are kilonovae standardizable candles? 36 Pavana M - Modelling the ejecta of Galactic Nova, ASASSN-16ma 36 Parallel Session – Extragalactic Astronomy IV 37 Anupreeta More - SuGOHI: Strong lens systems from Hyper Suprime Cam-Survey 37 Ishwara Chandra CH - Deep uGMRT 400 MHz observations of XMMLSS region 37 Avinash Singh - SN 2016gfy: A slow-declining, luminous type II-P SN 38 Rahul Gupta - Multiwavelength Investigation of the Gamma Ray Burst Afterglow 38 Table of Contents Sagnick Mukherjee - The accretion disk-jet connection in blazers 39 Parallel Session – Sun and the Solar System I 40 Ishan Sharma - Mechanics of granular minor planets: Getting to know our small neighbors. 40 Deepthi Ayyagari - Ionospheric response to space weather events using IRNSS and GPS TEC 40 observations from Indore Anuj Gupta - Thermodynamical Equilibrium Condensation Calculations in Primitive Solar 41 Gas Anshu Kumari - Estimation of Strength of the Solar Coronal Magnetic Field using 41 Contemporaneous Radio and Whitelight Observations Hariharan Krishnan - Study of Fine Structures in Solar Radio Emission 42 Parallel Session – Instrumentation and Techniques II 43 Mudit Srivastava - The Development of Mt. 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