Dr. Rupak Roy

Assistant Professor



    To carry out research work on Supernovae, Superluminous supernovae, Tidal Distruption Events & energetic out flows from active galaxies. Teaching MSc students, and also supervising students during MSc and PhD thesis programs.


Degree Specialisation Institute Year of passing
Ph. D Physics (Astrophysics) Kumaun University /ARIES, Nainital 2013
MSc Physics ( Solid state experimental) University of Delhi, Delhi 2005


Institution / Organisation Designation Role Tenure
IUCAA, Pune Post doctoral Research Fellow 1). Research on cosmic catastrophes. 2). To co-supeirvise the students purasuing Msc. Thesis in High energy Astrophysics 2017 - 2020
Stockhalom University, Stockhalom, Sweden Post Doctoral Research Fellow To do research on High energy Astophysics, mainly cosmic explosions, using data from iPTF survey 2014 - 2017
University of Liege, Liege, Belgium BELSPO Post Doctoral Fellow Research on supernovae, Super luminous Supernoval etc. Also some involment with ILMT project. 2013 - 2014


Area of Interest

High Energy Astrophysics, Cosmic Explosions - Supernovae, superluminous supernovae, Tidal Disruption events, Energetic outflows from Active galaxies

Area of Expertise

Ultraviolet, Optical, Infrared, and Radio Astronomy and Astrophysics, Development of pipeline for analysis of Astronomica data.

Area of Research

High energy astrophysics, mainly cosmic explosions in massive stars.

Professional Affiliations & Contributions

Member of several Transient survey programs -like PESSTO, GSP, ENGRAVE & GAIA Science alert. Member of Astronomial Society of India (ASI), Junior member of International Astronomical Union (IAU).

Double-peaked Lines, Dual VLBI Components, and Precessing Jets in J1328+2751

14/02/2020 S. Nandi A. Caproni P. Kharb B. Sebastian R. Roy

Accepted for The Astrophysical Journal.

An outflow powers the optical rise of the nearby, fast-evolving tidal disruption event AT2019qiz

12/10/2020 M. Nicholl R. Roy

Monthly Notices of the Royal Astronomical Society. Page:482; Vol: 499

The Rise and Fall of ASASSN-18pg : Following a TDE from Early to Late Times

04/08/2020 Holoien Rupak Roy

The Astrophysical Journal, 898, 161

SN2018kzr: a rapidly declining transient from the destruction of a white dwarf

31/10/2019 Owen R McBrien Stephen J. Smartt Ting-Wan Chen Cosimo Inserra James H Gillanders Stuart A. Sim Anders Jerkstrand Armin Rest Rupak Roy

The spectral evolution of AT2018dyb and the presence of metal lines in Tidal Disruption Events

12/12/2019 Giorgos Leloudas Lixin Dai Iair Arcavi Paul M. Vreeswijk Brenna Mockler Rupak Roy

The Astrophysical Journal. Page:218; Vol: 887

A low-frequency study of recently identified double-double radio galaxies

03/07/2019 S. Nandi D. J. Saikia R. Roy P. Dabhade

Monthly Notices of the Royal Astronomical Society. Page:5158; Vol: 486

A nearby superluminous supernova with a long pre-maximum 'plateau' and strong CII features

25/08/2018 J. P. Anderson P. J. Pessi L. Dessart C. Inserra D. Hiramatsu K. Taggart S. J. Smartt G. Leloudas T.-W. Chen R. Roy

Astronomy & Astrophysics, 620A, 67

Sifting for Sapphires: Systematic Selection of Tidal Disruption Events in iPTF

27/09/2018 T. Hung S. Gezari R. Roy

ApJS. Page:238; Vol:15

Early formation of carbon monoxide in the Centaurus A supernova SN 2016adj

18/08/2018 D.P.K. Banerjee Vishal Josh Mudit Srivastava N. M. Ashok R.D. Gehrz M. S. Connelley T. R. Geballe J. Spyromilio J. Rho R. Roy

MNRAS. Page: 806; Vol: 481

SN 2017dio: A Type-Ic Supernova Exploding in a Hydrogen-rich Circumstellar Medium

06/02/2018 Hanindyo Kuncarayakti Keiichi Maeda Rupak Roy

The Astrophysical Journal, 854, L14

A kilonova as the electromagnetic counterpart to a gravitational-wave source

16/10/2017 S. J. Smartt T.-W. Chen R. Roy

Nature, 551, 75

Hydrogen-poor Superluminous Supernovae with Late-time Hα Emission: Three Events From the Intermediate Palomar Transient Factory

01/10/2017 Lin Yan R, Lunnan D. A. Perley A. Gal-Yam O. Yaron R. Roy R. Quimby

The Astrophysical Journal. Page:6; Vol:848

The bumpy light curve of Type IIn supernova iPTF13z over 3 years

29/08/2017 A. Nyholm J. Sollerman F. Taddia C. Fremling T. J. Moriya E. O. Ofek A. Gal-Yam A. De Cia R. Roy M. M. Kasliwal

Astronomy & Astrophysics . Vol:605 ; A6

Tale of J1328+2752: a misaligned double-double radio galaxy hosted by a binary black- hole?

19/12/2016 S. Nandi M. Jamrozy R. Roy D.J. Saikia M. Singh

MNRAS letter ; 467 ; L56

SN 2012aa - a transient between Type Ibc core-collapse and superluminous supernovae

04/07/2016 R. Roy J. Sollerman J. M. Silverman A. Pastorello C. Fransson

Astronomy & Astrophysics ; 596 ; A67

Metallicity at the explosion sites of interacting transients

19/08/2015 F. Taddia J. Sollerman C. Fremling A. Pastorello G. Leloudas C. Fransson A. Nyholm M. D. Stritzinger M. Ergon R. Roy, K. Migotto

Astronomy & Astrophysics. Vol:580 : A131

Discovery of a Red Quasar with Recurrent Activity

03/07/2014 S. Nandi R. Roy D. J. Saikia M.Singh H. C. Chandola M. Baes R. Joshi G. Gentile M. Patgiri

The Astrophysical Journal. 789 ; 16 - 20

Electron Cooling in a Young Radio Supernova: SN 2012aw

23/01/2014 Naveen Yadav Alak Roy Sayan Chakraborti Christopher Stockdale Poonam Chandra Randall Smith Rupak Roy Subhash Bose

The Astrophysical Journal . 782 ; 30 - 39

SN 2007uy – metamorphosis of an aspheric Type Ib explosion

30/07/2013 Rupak Roy Brijesh Kumar Justyn R. Maund Patricia Schady Felipe Oliveres E Daniele Malesani Giorgos Leloudas Sumana Nandi Nial Tanvir

Monthly Notices of the Royal Astronomical Society. Page:2032 - 2050; Vol:434

The Progenitor of SN 2011ja: Clues from Circumstellar Interaction

02/09/2013 Sayan Chakraborti Alak Ray Randall Smith Stuart Ryder Firoza Sutaria Vikram V. Dwarkadas Poonam Chandra David Pooley Rupak Roy

The Astrophysical Journal. Vol:774 ; 30 - 37

Supernova 2012aw - a high-energy clone of archetypal Type IIP SN 1999em

18/06/2013 Subhash Bose Brijesh Kumar Firoza Sutaria Brajesh Kumar Rupak Roy V. K. Bhatt S. B. Pandey H. C. Chandola Ram Sagar Kuntal Misra, Sayan Chakraborti

Monthly Notices of the Royal Astronomical Society. Page:1871 - 1891; Vol: 443

Light curve and spectral evolution of the Type IIb supernova 2011fu

23/02/2013 Brajesh Kumar S. B. Pandey D. K. Sahu J. Vinko A. S. Moskvitin G. C. Anupama V. K. Bhatt A. Ordasi A. Nagy V. V. Sokolov, T. N. Sokolova, V. N. Komarova, Brijesh Kumar, Subhash Bose, Rupak Roy, Ram Sagar

Monthly Notices of the Royal Astronomical Society. Page:308 – 321; Vol:431

SN 2008gz - most likely a normal type IIP event

01/06/2011 Rupak Roy Brijesh Kumar Alexander S. Moskvitin Stefano Benetti Timur A. Fatkhullin Brajesh Kumar Kuntal Misra Filomena Bufano Ralph Martin

Monthly Notices of the Royal Astronomical Society. Page:167 – 183; Vol: 414

The Discovery and Nature of Optical Transient CSS100217:102913+404220

29/03/2011 A.J. Drake S.G. Djorgovski A. Mahabal J. Anderson R. Roy V. Mohan S. Ravindranath D. Frai S. Gezari James D. Neill

The Astrophysical Journal; 735 ; 106 - 126

SN 2008in - Bridging the gap between normal and faint supernovae of type IIP

13/06/2011 Rupak Roy Brijesh Kumar Stefano Benetti Andrea Pastorello Fang Yuan Peter J. Brown Stefan Immler Timur A. Fatkhullin, Alexander S. Moskvitin, Justyn Maund

The Astrophysical Journal. Page:76 - 95; Vol: 736

The complex light curve of the afterglow of GRB071010A

28/04/2008 S. Covino P. D’Avanzo R. Roy

Monthly Notices of the Royal Astronomical Society. Page:347 – 356; Vol: 388