Workshops

During 35th Meeting of Astronomical Society of India, 5 workshops will be organized on 6th March 2017, Monday. Registered participants of ASI 2017 (who have paid registration fee) can only attend any one of the workshops as listed below. The online form to attend this workshop is closed now. The number of participants is limited and will be decided by the organizers of the particular workshop.

  • Workshop 1 : Gravitational wave astronomy: The new window to the universe
  • Workshop 2 : New Initiatives in the field of Exoplanetary Science in India
  • Workshop 3 : Science with Aditya L1 mission
  • Workshop 4 : X-ray Observations and Data Analysis of Compact Objects
  • Workshop 5 : High performance computing in Astrophysics

Title of workshop: Gravitational wave astronomy: The new window to the universe
Venue: Birla Institute of Scientific Research, Jaipur
Date: 6 March 2017 (Mon)
Participants limit: 30
Details: This workshop would primarily target graduate students and young scientists who would be interested in exploring the interface of astronomy & astrophysics with gravitational wave (GW) physics. The workshop will feature of a small number of talks elucidating the astrophysical implications of the recent LIGO observations and the potential of upcoming GW observations as new tool of astronomy. The afternoon session will provide a hands-on training session on working with the open science data from LIGO. The aim of the workshop is two-folds: 1) to facilitate more active research in the interface area of astronomy & astrophysics and gravitational wave physics, 2) provide training to astronomers to work with the open LIGO data, thus enabling new discoveries.
For List of Participants click here
Scientific Program
Gravitational wave astronomy: The new window to the universe
Satellite workshop on gravitational-wave astronomy
Venue: Birla Institute of Scientific Research, Jaipur (Hall A)
Date: 6 March 2017 (Monday)
Time Details
09:30 - 10:00 Arrival and registration
Chair: Sumit Kumar (ICTS, Bangalore)
10:00 - 11:00 Rajesh Nayak (IISER Kolkata): LIGO discovery of gravitational waves and its astrophysical implications
11:11 - 11:15 Tea break
11:15 - 12:15 Varun Bhalerao (IIT Bombay): The search for the electromagnetic counterparts of gravitational wave signals
12:15 - 12:30 Discussions and preparations for the hands-on session
12:30 - 13:30 Lunch Break
13:30 - 17:30 Hands on session on LIGO open data
Tutors: Abhirup Ghosh (ICTS, Bangalore), Sumit Kumar (ICTS, Bangalore), Ajit K Mehta (ICTS, Bangalore), Gayathri Vivekanandan (IISER, Thiruvananthapuram), Muhammed Saleem (IISER, Thiruvananthapuram)
16:00 - 16:15 Tea break
This program is organized with support from the Max Planck Partner Groups at ICTS, Bangalore and IISER, Thiruvananthapuram.
Title of workshop: New Initiatives in the field of Exoplanetary Science in India

Co-ordinators : Lalitha Sairam (IIA), Koshy George (IIA)

Workshop Details:

Due to improved observational techniques, both the rate of detection and our knowledge about extrasolar planets has been increasing. Since 1995, over several thousands of exoplanets have been discovered. While most of the known exoplanets remain Hot Jupiters, the frontier has inevitably approached the Earth-mass regime. To find planets like our own Earth requires a new sophisticated technology since they are much smaller and are more liable to be hidden by the glare of the parent star. The primary goal of this workshop is to introduce to the newest developments in exoplanetary science, and explore the challenges and opportunities in the field. We will also focus on the current status of ongoing planet search programs and future observations.

Observational exoplanet research has developed enormously in the last two decades and a huge dataset is available in the archive. The workshop will lay ground to increase the efficient use of archival data in the country. The outcome of the workshop would be to learn and understand the tools from the experts in the field. It would be an oppurtunity to identify specific science goals that would enable in conducting observations with the existing facilities in the country.

Requirement for the workshop:

No specific preparation is required to proficiently attend the workshop. For data analysis hands-on session:
  • UNIX based laptop with PYTHON and analysis packages like scipy, numpy, pyfits, matplotlib...
  • Data for reduction and analysis will be shared with the participants prior to the workshop. Kindly download those datasets.

Program schedule and the speakers Date: 6 March 2017 Venue: Hall B

Title of the talk Speakers Time
Exoplanets - The fascinating new customers for Astronomers Sujan Sengupta (IIA) 9:30-10:00
Direct Imaging of Exoplanets: The PICTURE series of experiments at the University of Massachusetts, Lowell Supriya Chakrabarti (UMASS, Lowell) 10:00-10:30
Ground-based observational facilities in India G.C. Anupama (IIA) 10:30-10:50
M-dwarf exoplanet hosts Lalitha Sairam (IIA) 10:50-11:10
Coffee Break 11:10-11:40

Astrosat for simultaneous multi-wavelength studies on exoplanets
Koshy George (IIA) 11:40-12:00
Exoplanet atmosphere characterisation through visible and IR spectroscopy Giovanna Tinetti (UCL) 12:00-12:30
Molecular line lists for exoplanet spectroscopy and future instruments Jonathan Tennyson (UCL) 12:30-13:00
Lunch Break 13:00-14:30

Hands on session on transit data analysis using ground-based observations
Koshy George & Lalitha Sairam (IIA) 14:30-16:00
Coffee Break 16:00-16:30

Hands on session on Hubble Space Telescope and Spitzer data -- transit spectroscopy
Marcell Tessenyi (UCL) 16:30-18:00

For further details about the workshop click on the link and e-mail us at lalitha.sairam@iiap.res.in or koshy@iiap.res.in

For List of Participants click here
Title of workshop: Science with Aditya L1 mission
Organizers: Dipankar Banerjee (Indian Institute of Astrophysics, Bangalore) Email: dipu@iiap.res.in
and Durgesh Tripathi (IUCAA,Pune) Email: durgesh@iucaa.in
Rationale: Aditya-I is India's first dedicated scientific mission to study the sun. The Aditya-1 mission was conceived as a 400kg class satellite carrying one payload, the Visible Emission Line Coronagraph (VELC) and was planned to launch in a 800 km low earth orbit. A Satellite placed in the halo orbit around the Lagrangian point 1 (L1) of the Sun-Earth system has the major advantage of continuously viewing the Sun without any occultation/ eclipses. Therefore, the Aditya-1 mission has now been revised to “Aditya-L1 mission” and will be inserted in a halo orbit around the L1, which is 1.5 million km from the Earth. The satellite carries additional six payloads with enhanced science scope and objectives.

The project is approved and the satellite will be launched during 2019 – 2020 timeframe by PSLV-XL from Sriharikota. A combination of imaging and spectroscopy in Multi-wavelength will enhance our understanding of the solar atmosphere. Modeling of the three-dimensional structure of the solar corona requires an accurate empirical description of the coronal plasma parameters (densities, temperatures, and velocities) for the coronal plasma. The spectroscopic instruments on board Aditya will enable us to measure these plasma parameters for a diagnostics of the corona and the solar wind. The mission will provide vital data for space weather studies.

Program schedule and the speakers Date: 6 March 2017, Venue: Hall C

Time Speakers Title of the Talk

Session 1- 9:30 - 11:00 (Chair: Arnab Rai Choudhuri)

09:30 - 09:45 - S. Seetha Overview on Aditya Mission
09:45 – 10:10 - Dipankar Banerjee - VELC and its science objectives
10:10 – 10:35 - Durgesh Tripathi - SUIT and its science objectives
10:35 – 11:00 - K. Sankarsubramnaian - SOLEX and its science objectives

Tea break 11:00 - 11:30

Session 2- 11:30 - 13:10

11:30 – 11:55 - Bhuwan Joshi HEL1OS and its science objectives
11.55 – 12:20 - Sathish Thampi - Papa and its science objectives
12.20 – 12:45 - Santosh Vadawale - ASPEX and its science objectives
12:45 – 13:10 -K. Subhalakshmi - - Magnetometer and its science objectives

Lunch break 13:10 - 14:30

Session 3- 14:30 - 16.00 (Chair: Durgesh Tripathi)

14:30 - 15.00 - Vaibhav Pant/ K. Amareswari - Auto Detection of CMEs and eruptive Science with VELC
15:00 - 15.30 - Tanmoy Samanta/ K. Sankar Subramanian - Multi Slit Spectroscopy and Spectropolarimetry with VELC
15:30 – 15:50 - P. Sreejith - Science with SUIT
15:50 – 16:10 - Abhishek Srivastava On Exploring the Heating Candidates in the Solar Chromosphere and Corona : A science prospective in the frame-work of SUIT

Tea break 16:10 - 16:30

Session 4- 16:30 - 18.00 (Chair: Dipankar Banerjee)

16:30 - 16.50 - Vipin Yadav - - Science with Papa
16:50 - 17.10 - Aveek Sarkar - Science with ASPEX
17:10 – 17:30 - Mahendra Verma - Dynamo & corona heating ideas from Aditya Mission
17:30 - 18:00 Moderated by S. Seetha Group Discussion and closing remarks

End of Workshop

Morning session will be dedicated to the science objectives of the individual payloads. Different payload team will present their payload details and the current status of development.

Afternoon session will focus on payload operation, different modes of observations and synergy between different payloads for co-ordinated observing campaign will be discussed.
For List of Participants click here
We will be able to accommodate 70 participants. Students and postdocs are encouraged to attend the workshop.
Title of workshop: X-ray Observations and Data Analysis of Compact Objects

Conveners:
-Sandip K. Chakrabarti (Chakraba@bose.res.in), S.N. Bose National Centre for Basic Sciences and Indian Centre for Space Physics
- Dipak Debnath (dipakcsp@gmail.com), Indian Centre for Space Physics

Rational for the Workshop: Over the years, the physics of compact objects has become more and more interesting especially after launching of several satellites such as RXTE, SWIFT, INTEGRAL, MAXI and more recently ASTROSAT. Theory and observations have progressed rapidly in parallel. It is thus evident that we will have exciting times in days ahead in X-rays Astronomy. Several theoretical models such as DISKBB+PL, COMPTST, TCAF etc. have been implemented with NASA XSPEC Software in order to analyze these data. With Indian satellite ASTROSAT and Indian model TCAF, ASI is the right platform to have extensive discussion on the physics of Compact objects. These progresses are attracting many students from the University sector as well as from institutes all over India.

We propose to have a special workshop on the theoretical models and observational progresses in X-ray astronomy of compact objects. Hands on training will be done. Discussion session will be kept extensive so as to get queries clarified from the floor to all speakers. The participants would be limited to 40. They would be selected based on their background from the list obtained after candidates make their choice during registration.
Schedule for Workshop 4: X-ray Observations and Data Analysis of Compact Objects

Time Speaker Title
Session 1 (9:30 – 11:15) : Chair : Prof. K. P. Singh
9:30 - 10:30 Sandip K. Chakrabarti What X-ray data of compact objects tell us about the physical processes?
10:30 – 11:15 J. S. Yadav Large Area X-ray Proportional Counter (LAXPC) Instrument onboard AstroSat: calibration and performance in orbit and some results
11:15 – 11:30 Tea Break
Session 2 (11:30 – 13:30) : Chair : Prof. J. S. Yadav
11:30 – 12:10 K. P. Singh Soft X-ray Telescope and some initial results from wide band spectroscopy with the AstroSat
12:10 – 12:50 N. P. S. Mithun AstroSat CZTI: the initial results
12:50 – 13:30 Dipak Debnath A Brief Summary of Recent Observational Results with the TCAF Solution
13:30 – 14:30 Lunch Break
Session 3 (14:30 – 16:00)
14:30 – 16:00 Dipak Debnath, A. Jana, D. Chatterjee, A. Bhattacharjee Computer Session 1: Spectral fitting with the TCAF Solution as a local model
16:00 – 16:30 Tea Break
Session 4 (16:30 – 18:00)
16:30 – 18:00 Dipak Debnath, A. Jana, D. Chatterjee, A. Bhattacharjee Computer Session 2: Spectral fitting with the TCAF Solution as a local model
End of the Worskshop 4
For the List of Participants click here
Theme: High performance computing in Astrophysics (or Using public codes to do astrophysics)
Rationale: Rationale: Computational astrophysics is playing an increasingly important role in astrophysics. It is desirable to simulate the nonlinear equations (e.g., N-body and hydro/MHD) on massively parallel computers to build intuition and to compare with multiwavelength observations. Several astrophysics codes are publicly available and are well-documented, and one does not necessarily have to write a code from scratch. The availability of codes provide a great opportunity (especially to students and postdocs) of quickly getting started with interesting astrophysical applications. The challenging part is to get started and that is what we aim to do in this workshop.

In the longer term the plan is to evolve a community of users who are comfortable with the use of publicly available codes, by adding modules to such codes for their specific requirements, and, eventually to develop stand-alone codes.

With the National Supercomputing Mission (NSM) initiative supercomputing will become more and more accessible in India and it is timely that the astrophysics community becomes well poised to make use of these upcoming facilities.
Plan: In the morning we plan to give a basic introduction to high performance computing (HPC) and the key concepts in N-body, finite difference/volume hydro/MHD, spectral techniques. In afternoon we introduce various public codes: TreePM, PLUTO and TARANG. People should get their laptops so that they can install the codes and run some test problems on their own. Participants should install the codes BEFORE COMING FOR THE WORKSHOP.
Expected participants: 30-40
Organizers: Prateek Sharma, Jasjeet Bagla, Mahendra Verma.
For List of Participants click here

Important Dates

Closed - Abstract Submission Deadline
5th December 2016

Closed - Request for Support Deadline
30th November 2016

Closed - Communication of Abstract Acceptances
26st December 2016

Closed - Submission of Workshop form
15th January 2017

Early Registration Deadline (Closed now with Regular Payment)
31st January 2017

Hotel Booking Deadline
10th February 2017