CURRICULUM VITAE

Visweshwar Ram Marthi

Reader-F Email: vrmarthi@ncra.tifr.res.in

National Centre for Radio Astrophysics Phone: +91 20 2571 9229

Post Bag 3, Ganeshkhind, Pune Fax: +91 20 2569 2149

(a) Education & Training

CITA, University of Toronto Postdoctoral Fellow Nov 2016 - Aug 2019

NCRA, Tata Institute of Fundamental Research Doctor of Philosophy Oct 2011 - Jul 2016

NCRA, Tata Institute of Fundamental Research Master of Science Apr 2006 - Oct 2010

2007 – 2011 Research Associate, NCRA-TIFR

2006 – 2007 Research Trainee, NCRA-TIFR

2004 – 2006 Multimedia Engineer, Sasken Communication Technologies Ltd.

(c) Publications

As main author

1. V. R. Marthi, S. Bethapudi, R. A. Main, H. H. Lin, L. G. Spitler, R. S. Wharton, D. Z. Li, T. Gau-

tam, U. L. Pen, and G. H. Hilmarsson, Burst properties of the highly active FRB20201124A using

uGMRT, MNRAS 509, 2209–2219 (2022).

2. V. R. Marthi, D. Simard, R. A. Main, U. L. Pen, M. H. van Kerkwijk, K. Vanderlinde, Y. Gupta,

C. Roberts, and B. M. Quine, Scintillation of PSR B1508+55 - the view from a 10 000-km baseline,

(2017).

5. V. R. Marthi, Prowess - A Software Model for the Ooty Wide Field Array, JApA 38, 12 (2017).

6. V. R. Marthi, Towards detecting redshifted HI with the Ooty Wide Field Array., Ph.D. Thesis

http://hdl.handle.net/2301/455 (2016).

7. V. R. Marthi and J. Chengalur, Non-linear redundancy calibration, MNRAS 437, 524–531 (2014).

8. V. R. Marthi, J. N. Chengalur, Y. Gupta, G. C. Dewangan, and D. Bhattacharya, The central point

source in G76.9+1.0, MNRAS 416, 2560–2566 (2011).

9. V. R. Marthi and J. N. Chengalur, A search for the 55-MHz OH line, MNRAS 407, 258–262

(2010).

As co-author

12. D. Simard, U. L. Pen, V. R. Marthi, and W. Brisken, A comparison of interferometric and single-

dish methods to measure distances to pulsar scattering screens, MNRAS 488, 4952–4962 (2019).

13. D. Simard, U. L. Pen, V. R. Marthi, and W. Brisken, Disentangling interstellar plasma screens

with pulsar VLBI: combining auto- and cross-correlations, MNRAS 488, 4963–4971 (2019).

14. A. K. Sarkar, S. Bharadwaj, and V. R. Marthi, An analytical method to simulate the H I 21-cm

visibility signal for intensity mapping experiments, MNRAS 473, 261–270 (2018).

15. S. Chatterjee, S. Bharadwaj, and V. R. Marthi, Simulating the z = 3.35 HI 21-cm Visibility Signal

for the Ooty Wide Field Array (OWFA), JApA 38, 15 (2017).

(d) Talks

1. A long baseline view of B1508+55: a two-screen system, 31-Aug-2022, Scintillometry Work-

shop, CITA, Toronto, Canada.

5. Measuring the scattering screen of B1508+55 with wideband simultaneous GMRT-ARO ob-

servations, 24-October-2018, Global Radio Scintillometry Astrophysics 2018, T. .D. Lee Institute,

Shanghai Jaio Tong University, Shanghai, China.

6. Imaging with Interstellar Baselines, 23-February-2018, NCRA Colloquium, NCRA, Pune, In-

dia.

7. Towards detecting redshifted HI with the Ooty Widefield Array, 8-February-2018, ASI Annual

Meeting 2018, Osmania University, Hyderabad, India.

8. Forecasts for z=3.35 Intensity Mapping with the Ooty Widefield Array, 14-December-2017,

Science at Low Frequencies IV, University of Sydney, Sydney, Australia.

9. Progress and Challenges in detecting 21cm with the OWFA, 11-December-2017, Presi-21cm,

Bonn, Germany.

13. Simulations for OWFA: instrument, foregrounds and the signal, 23-June-2015, Cosmology

with the HI 21-cm line, Raman Research Institute, Bengaluru, India.

14. The central point source in G76.9+1.0, 1-March-2011, Diffuse Relativistic Plasmas, Raman

Research Institute, Bengaluru, India.

(e) Synergistic Activities

1. Referee for MNRAS.

2. Guided a Visiting Student Research Programme (VSRP2020) student (Salmoli Ghosh) for her

project on pulsar scintillation analysis, who is now a Ph.D. candidate selected through the VSRP.

3. Served on the CITA Visitor Committee actively for over two years.