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English Version INDIAN INSTITUTE OF ASTROPHYSICS ANNUAL REPORT 2016-2017 Edited by : Prof. S. Muneer (with support from Prof. G. C. Anupama, (Dean, IIA)). Published on behalf of : The Director, Indian Institute of Astrophysics, Sarjapura Road, Bengaluru 560034, INDIA. Front Cover : Colour composite of NGC 5247, a nearby spiral (SAbc) galaxy, observed with the 2-m Himalayan Chandra Telescope (HCT+HFOSC), Hanle, using broad band filters BVR on June 03, 2016. This galaxy hosted a bright type IIP supernova SN 2016C. Photo Credit : D K Sahu. Back Cover : The Sun emitted an intense flare near its west limb on November 04, 2015 around 03:25 UT (~09:00 IST). The collage shows the simultaneous observations of the event in X-ray, visible, and radio wavelengths by the Scanning Sky Monitor (SSM) on-board ASTROSAT space mission, Kodaikanal H-alpha Telescope, and Gauribidanur RAdio SpectroPolarimeter (GRASP), respectively. Note the X-ray counts recorded in SSM are not from direct observations of the Sun. They correspond to X-rays scattered from the Earth when the latter came in the field of view of SSM during the solar flare. The SSM cameras were facing the Earth at the time of event. Photo Credits : V. Mugundhan, Anshu Kumari, K. Prabhu, Indrajit V. Barve of IIA (H-alpha and radio observations) and M.C.Ramadevi of ISAC-ISRO (SSM observations). Cover Design by : Sanjiv Gorka Contents Governing Council (2016–2017) iii 1 The Year In Review 1 2 RESEARCH 4 2.1 TheSunandtheSolarSystem. ... 4 2.2 Stellar and Galactic Astrophysics . ........ 7 2.3 CosmologyandExtragalacticAstronomy . ........ 10 2.4 Theoretical Physics & Astrophysics . ........ 13 3 STUDENTPROGRAMSANDTRAININGACTIVITIES 17 3.1 PhDDegreeAwarded................................ 17 3.2 PhDThesisSubmitted .............................. .. 18 3.3 CompletionofMTechProgram . ... 18 3.4 School in Physics and Astrophysics . ....... 18 3.5 Visiting Students Programme (VSP) . ...... 19 3.6 Attendance/ Presentations in Meetings . ......... 19 3.7 AwardsandRecognition . .. .. ... 24 4 INSTRUMENTS AND FACILITIES 25 4.1 SystemEngineeringGroup(SEG) . ..... 25 4.2 Observatories ................................... .. 26 4.2.1 IndianAstronomicalObservatory . ..... 26 4.2.2 Centre for Research and Education in Science and Technology (CREST) 29 4.2.3 KodaikanalObservatory . .. 30 4.2.4 VainuBappuObservatory . 33 4.2.5 GauribidanurRadioObservatory . .... 35 4.3 Ultra-Violet Imaging Telescope (UVIT) . ......... 37 4.4 ComputationalFacilities . ...... 39 4.5 Library......................................... 40 5 UPCOMING FACILITIES 42 i 5.1 ThirtyMeterTelescope. .... 42 5.2 Visible Emission Line Coronagraph on ADITYA(L1) . ......... 43 5.3 NationalLargeSolarTelescope . ...... 44 6 PUBLIC OUTREACH 45 6.1 CelebrationofScienceDay. ..... 45 6.2 OutreachLectureSeries . .... 45 6.3 Students′ VisittoIIAanditsObservatories . 46 6.4 IIAStalls ....................................... 47 7 MISCELLANEOUS ACTIVITIES BY IIA STAFF 48 7.1 Talks given in National/ International Meetings outsideIIA ........... 48 7.2 Awards, Recognition, Professional Membership, Editorshipetc.. 54 7.3 ExternallyFundedProjects . ..... 54 7.4 Workshop, Conference, School etc. Organized at IIA or outsideIIA . 55 7.5 PopularLectures ................................. .. 55 7.6 PublicCommunication . .. .. ... 56 7.7 Involvement with the Scientific Community . ......... 57 7.8 OfficialLanguageImplementation(OLI) . ....... 58 7.9 Welfare of SC/ST Staff & Physically Challenged . ......... 58 7.10 Committee against Sexual Harassment . ........ 59 8 PUBLICATIONS 60 8.1 InJournals ...................................... 60 8.2 ConferenceProceedings. ..... 67 8.3 Technical Reports, Monographs, Circulars, ATel . ............ 69 8.4 Books ......................................... 69 8.5 PopularArticles................................. ... 70 8.6 HCT Publications by non-IIA Users . ...... 70 9 PEOPLE 72 10 AUDITORS’ REPORT & STATEMENT OF ACCOUNTS 74 ii Governing Council (2016–2017) Professor Ajit K. Kembhavi Chairman Emeritus Professor IUCAA, Pune Professor Ashutosh Sharma Member Secretary (Ex-Officio) DST, New-Delhi Shri. J. B. Mohapatra, IRS Member Joint Secretary & (Ex-Officio) Financial Adviser DST, New Delhi Dr. P. Sreekumar Member Secretary Director IIA, Bengaluru Professor N. M. Ashok Member Visiting faculty PRL, Ahmedabad Professor Prasad Subramanian Member Associate Professor IISER, Pune Professor Pushpa Khare Member Long term visitor IUCAA, Pune Professor Sibaji Raha Member Director (until 2016) Bose Institute, Kolkata Professor Yashwant Gupta Member Dean, GMRT Observatory NCRA, Pune iii Honorary Fellows Professor P. Buford Price Physics Department, University California, Berkeley, USA Professor Sir Arnold W. Wolfendale, FRS Emeritus Professor, Department of Physics, Durham University, UK Professor D. L. Lambert Department of Astronomy, University of Texas, Austin, USA Professor B. V. Sreekantan National Institute of Advanced Studies (NIAS), Bengaluru 560 012 Dr. K. Kasturirangan Raman Research Institute, Bengaluru 560 080 †Professor S. Chandrasekhar, Nobel Laureate (1995) †Professor R. M. Walker (2004) †Professor Hermann Bondi, FRS (2005) †Professor V. Radhakrishnan (2011) †Professor M. G. K. Menon, FRS (2016) †deceased iv Institute Functionaries Director Dr P. Sreekumar [email protected] Dean Professor G. C. Anupama [email protected] Chairperson: GC-I: Solar System Studies Professor R. Ramesh [email protected] Chairperson: GC-II: Stellar & Galactic Astronomy Professor Aruna Goswami [email protected] Chairperson: GC-III: Theoretical Astrophysics Professor Arun Mangalam [email protected] v Head: System Engineering Group Mr G. Srinivasulu [email protected] Chairperson: Board of Graduate Studies Professor R. T. Gangadhara [email protected] Senior Administrative Officer Dr P. Kumaresan [email protected] First Appellate Authority Professor R. Ramesh [email protected] Central Public Information Officer Mr P. K. Mahesh [email protected] vi Vigilance Officer Professor Bhuwan Chandra Bhatt [email protected] Chairperson: Internal Complaints Committee against Sexual Harassment Professor Annapurni Subramaniam [email protected] Chairperson: Grievance Cell Professor Aruna Goswami [email protected] Chairperson: Outreach Committee Dr C. Kathiravan [email protected] vii Chapter 1 The Year In Review Multiwavelength studies of active galaxies and transients continued to be areas of major interest at IIA. I will summarize below some of the major findings that emerged from ac- tivities this year. Our Kodaikanal Observatory′s nearly 100- year long, daily full-disk image plate collec- tion was fully digitized and now made avail- able to scientists around the world. This unique collection, which provides the longest, consistently calibrated data set from a sin- gle observatory, is now being used to study changes across multiple solar cycles in a sys- tematic manner. Simultaneous high resolu- tion observations of the Sun in penumbral and transition regions revealed the presence of micro-jets and bright dots, respectively. The correlation between these new classes of The past year has again been a very pro- events and their contribution to the heat- ductive year for the Indian Institute of Astro- ing of the solar atmosphere are being in- physics. During the academic year 2016–17, vestigated. On the theoretical side, calcu- IIA scientists have contributed significantly lations related to the polarization proper- to solar and stellar studies, modeling efforts, ties of coronal emission lines were developed design and development of astronomical in- and applied to the Fe xiii 10747 A˚ line to struments & facilities and continued to sup- explore its role as a diagnostic of coronal port many critical aspects of existing obser- magnetic fields. EUV observations of the vational facilities. Activities in the area of Sun, revealed outward propagation of jet- solar research covered theoretical, computa- like features which induced transverse oscilla- tional and experimental research related to tions in near-by coronal magnetic field lines. the Sun and solar system. Studies on ex- Our Gauribidanur radioheliograph observa- oplanets, novae, supernovae, and chemical tions yielded a comprehensive picture of how abundance analysis of various types of stars the amplitude of density turbulence and the were some of the topics in which the stel- density modulation index vary with heliocen- lar astronomy group was engaged this year. 1 2 Indian Institute of Astrophysics tric distance in the solar wind, including its than design specification, has enabled high- solar cycle dependence. resolution UV imaging of galaxies and star Three short-period Earth-sized planets clusters. transiting an ultracool dwarf star Trappist-1 In the area of extragalactic astronomy, (12 parsecs away), were discovered using many themes have been pursued including TRAPPIST. Observations taken from the black hole astrophysics, energetics of active HCT contributed significantly in resolving galaxies, magnetic fields in galaxies and cos- the degeneracy of the orbital period of mology. The themes pursued by the theoreti- the third planet. Extensive monitoring of cal astrophysics group include relativistic as- the Transitional Supernovae such as SNe trophysics, magnetic fields, quantum chem- iPTF13ebh and SN 2015bp during the pre- istry, galactic gas dynamics and radiative maximum, maximum and post-maximum transfer theory for the Sun and exoplanets. phase was carried out using HCT. The two A dynamical model of tidal disruption events supernovae were found
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