Dr. Chandrachur Chakraborty
Assistant Professor
Physics
CURRENT ACADEMIC ROLE & RESPONSIBILITIES
Role: Assistant Professor
Responsibilities: Research and Teaching
ACADEMIC QUALIFICATIONS
| Degree | Specialisation | Institute | Year of passing |
|---|---|---|---|
| Ph.D. | Relativistic Astrophysics | Saha Institute of Nuclear Physics, Kolkata | 2015 |
| M.Sc. | Physics | IIT Kharagpur | 2010 |
| B.Sc (Hons.) | Physics | Burdwan University | 2008 |
Experience
| Institution / Organisation | Designation | Role | Tenure |
|---|---|---|---|
| IISC Bangalore | Research Associate | Research | August 2021 - February 2022 |
| Kavli Institute of Astronomy & Astrophysics Peking University, Beijing , China | BHOLE Fellow | Research | 2017 - 2021 |
| TIFR Mumbai | Post- Doctoral Fellow | Research | 2015 - 2017 |
| South-Western Institute For Astronomy Research, Yunnan University, China | Honorary (Visiting) Fellow | Research | May 2021--Dec 2021 |
Astrophysics
Natural Sciences Dr. Kazuyuki Furuuchi Dr. Debbijoy Bhattacharya Dr. Sreejith Padinhatteeri Dr. Chandrachur Chakraborty Dr. Sumana Nandi Dr. Rupak Roy
The research interests of the Astrophysics group members are broadly related to General Relativity, Cosmology, High energy astrophysics, Radio Astronomy, X-ray Astronomy, Solar Physics and Space Instrumentation. The research of this group mainly focuses on the black hole physics, accretion mechanism, spectral and timing studies of astrophysical objects, AGN, QPOs, relativistic jets, supernovae, tidal disruption events, cosmic inflation, cosmic microwave background anisotropy, dark matter, primordial black holes, analog gravity, magnetic activities on the Sun and its effect on the Earth and other solar system bodies, and so on. For more details on individual research, please visit the official homepage of the individual faculty members of this group.
AREAS OF INTEREST, EXPERTISE AND RESEARCH
Area of Interest
General Relativity with applications to Astrophysics
Area of Expertise
General Relativity & Theoretical Astrophysics
Area of Research
(i) General Relativity with applications to Astrophysics: Lense-Thirring Effect in strong gravitational fields, Spin precession, Black hole/Naked singularity shadow ; (ii) Theoretical aspects & the corresponding observational implications of Kerr black holes/naked singularities, Kerr-Taub-NUT spacetime & Gravitomagnetic monopole theory, Neutron star (iii) Gravitational waves (theory), Analogue Models of Gravity (iv) High energy astrophysical phenomena: Relativistic accretion, Tilted accretion disc, Bardeen-Petterson effect, Quasi-periodic-oscillations, Relativistic jets, BZ mechanism, Magnetic field
Professional Affiliations & Contributions
- Guest Editor: Guest Editor of special issue “Analogue Gravity” in 'Universe' (MDPI journal)
- Reviewer Board Member: Universe (MDPI journal)
- Journal Referee: MNRAS, Scientific Reports, J. Cosmol. Astropart. Phys, Eur. Phys. J. C, Class. Quant. Grav., Gen. Rel. Grav., Int. J. Mod. Phys D, Phys. Scr., Galaxies, Universe.
- Life Member: Indian Association for General Relativity and Gravitation (IAGRG)
- Life Member: Astronomical Society of India (ASI)
- Visiting Associate: Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, India
- Associate (Guest) Editor of “Gravitational Precession and its Applications to Astrophysics” in the journal 'Frontiers in Astronomy and Space Sciences.
- Editorial board member of the journal "Frontiers in Astronomy and Space Sciences."
- Individual Member: International Astronomical Union (IAU)
Research grants and Rewards:
1. 2021: Research grant (CNY 1,20,000) for Zhihui Yunnan project, from Yunnan Province Science and Technology Department.
2. 2018: One of the four awardees of the 1st class general grant (CNY 80,000) in Astronomy among all Chinese universities, from China Postdoctoral Science Foundation (CPSF), as PI.
3. 2017: Research grant (CNY 1,73,400) for International Young Scientists, as PI, from the National Natural Science Foundation of China.
4. Travel awards from Japan (2017, 2015), Switzerland (2015), Germany (2013).
5. 2015: Foundation day award, for Commendable publication in the year 2014, from Saha Institute of Nuclear physics, Kolkata, India.
6. 2006: Dr. Mani Bhaumik Educational Foundation Award.
7. 2005: National Merit Scholarship, Government of India.
8. 2003: National Scholarship, Government of India.
Primordial Black Holes having Gravitomagnetic Monopole
22/11/2022 C. Chakraborty S. Bhattacharyya
Phys. Rev. D 106, 103028
Gravitational analog of Faraday rotation in the magnetized Kerr and Reissner-Nordstrom spacetimes
31/03/2022 C. Chakraborty
Phys. Rev. D 105, 064072 (2022
Spin Precession in the Gravity Wave Analogue Black Hole Spacetime
20/03/2022 C. Chakraborty B. Mukhopadhyay
Universe 8, 193
Investigating the existence of gravitomagnetic monopole in M87*
23/10/2021 M. Ghasemi-Nodehi C. Chakraborty Q. Yu, Y. Lu,
Eur. Phys. J. C. Page: 939, Vol: 81
Spinning Gyroscope in an Acoustic Black Hole: Precession Effects and Observational Aspects
02/06/2020 C. Chakraborty P. Majumdar
European Physical Journal C. Page: 493; Vol:80(6)
Estimation of the jet inclination angle for the TDE Swift J1644+57
02/12/2019 S. Chakraborty S. Bhattacharyya C. Chakraborty A. R. Rao
MNRAs. Page: 1634; Vol: 492
Circular orbits in Kerr-Taub-NUT spacetime and their implications for accreting black holes and naked singularities
21/05/2019 C. Chakraborty S. Bhattacharyya
JCAP. Page: 034, Vol: 2019
Alignment and precession of a black hole misaligned with its accretion disc: Application to Low Mass X-ray Binaries
04/06/2019 S. Banerjee C. Chakraborty S. Bhattacharyya
MNRAS. Page:3488; Vol: 487
A study of a tilted thin inner accretion disk around a spinning black hole
11/01/2019 S. Banerjee C. Chakraborty S. Bhattacharyya
Astrophys. J. Page:95 ; Vol: 870
Does the gravitomagnetic monopole exist? A clue from a black hole x-ray binary
28/08/2018 C. Chakraborty S. Bhattacharyya
Phys. Rev. D . Page:043021; Vol: 98
Inertial Frame Dragging in an Acoustic Analogue spacetime
03/03/2018 C. Chakraborty O.Ganguly, P.Majumdar
Ann.Phys.(Berlin). Page :1700231; Vol: 530
Gravitomagnetism and Pulsar Beam Precession near a Kerr Black Hole
11/11/2017 P. Kocherlakota P. S. Joshi S. Bhattacharyya C. Chakraborty A. Ray S. Biswas
MNRAS. Page:3262; Vol: 490(3)
A tilted and warped inner accretion disc around a spinning black hole: an analytical solution
06/05/2017 C. Chakraborty S. Bhattacharyya
MNRAS. Page: 3062; Vol: 469
Distinguishing Kerr naked singularities and black holes using the spin precession of a test gyro in strong gravitational fields
12/04/2017 C. Chakraborty P. Kocherlakota M. Patil, S. Bhattacharyya P. S. Joshi A. Krolak
Phys. Rev. D. Page: 084024; Vol: 95
Behavior of a test gyroscope moving towards a rotating traversable wormhole
15/03/2017 C. Chakraborty P. Pradhan
JCAP. Page:035; Vol: 2017
Spin precession in a black hole and naked singularity spacetimes
17/07/2017 C. Chakraborty P.Kocherlakota P.S.Joshi
Phys. Rev. D. 95, 044006
Gravitomagnetic effect in magnetized neutron stars
30/01/2017 D. Chatterjee C. Chakraborty D. Bandyopadhyay
JCAP. Page: 062; Vol: 2017
Anomalous Lense-Thirring precession in Kerr-Taub-NUT spacetimes
01/12/2015 C. Chakraborty
Eur. Phys. J. Page: 572 ; Vol:75
Inner-most stable circular orbits in extremal and non-extremal Kerr-Taub-NUT spacetimes
01/02/2014 C. Chakraborty
Eur. Phys. J. C , Page:2759; Vol:74
Dragging of inertial frames inside the rotating neutron stars
26/06/2014 C. Chakraborty K.P. Modak D. Bandyopadhyay
Astrophys. J. Page: 2; Vol: 790
Strong gravity Lense-Thirring Precession in Kerr and Kerr-Taub-NUT spacetimes
05/03/2014 C. Chakraborty P. Majumdar
Class. Quantum Grav. Page: 075006 ; Vol:31
Lense-Thirring Precession in Pleba´nski-Demia´nski spacetimes
30/08/2013 C. Chakraborty P. Pradhan
Eur. Phys. J. C. Page: 2536; Vol: 73
On the first black hole image: Gravitomagnetic monopole/Naked singularity as an alternative explanation
2021
EPJC Highlight, Springer Research News, AAAS/EurekAlert, Phys.org Space Daily, SciTechDaily, La Vida (in Spanish), 163.com (in China), Invacao Technologica (in Brazil), AB-NEWS.RU (in Russia) The Hindu, Anandabazar Patrika
On the first observational indication of gravitomagnetic monopole and naked singularity
2018
KIAA-PKU News, TIFRIndia on Twitter , Anandabazar Patrika
On the theoretical discovery of a new method to distinguish between a black hole and a naked singularity
2017
AAAS/EurekAlert Phys.org, Nature India, TIFR Science news Osel (in Czech Republic), Notizie scientifiche (in Italy), Anandabazar Patrika Science Daily, Science alert, The archaeology news network, Futurism, Scifigeneration TV, Scinews, Ascimag Firstpost, Indian express, NDTV, Zee news, Business standard, Economic times, The Statesman, Ianslive
On the discovery of ‘strong gravity frame-dragging effect’ in the laboratory
2017
Advanced Science News
On the discovery of anomalous behaviour of Lense-Thirring precession in strong gravity
2014
Nature India