See my up-to-date publication list in NASA ADS.
Published in arXiv eprints, 2023
Gravitational waveforms and PTA signals from hyperbolic encounters of black holes.
Recommended citation: Dandapat, S et al. (2023); "Gravitational waves from black-hole encounters: Prospects for ground and galaxy-based observatories." arXiv eprints 2305.19318.
Published in arXiv eprints, 2023
Extension of the wide-band pulsar timing technique to combine simultaneous multi-band observations of the same pulsar.
Recommended citation: Paladi, A K et al. (2023); "Multi-band Extension of the Wideband Timing Technique." arXiv eprints 2304.13072.
Published in arXiv eprints, 2023
Single-pulsar noise characterization of the InPTA DR1.
Recommended citation: Srivastava, A et al. (2023); "Noise analysis in the Indian Pulsar Timing Array Data Release I." arXiv eprints 2303.12105.
Published in Publications of the Astronomical Society of Australia, 2022
The first data release of the Indian Pulsar Timing Array experiment including times of arrival (TOAs) and dispersion measure (DM) time series for 14 millisecond pulsars spanning 3.5 years.
Recommended citation: Tarafdar, P et al. (2022); "The Indian Pulsar Timing Array: First data release." Publications of the Astronomical Society of Australia; 39, e053. https://doi.org/10.1017/pasa.2022.46
Published in arXiv eprints, 2022
Computationally effiecient strategies for computing pulsar timing array signals induced by inspiralling eccentric binaries.
Recommended citation: Susobhanan, A. (2022); "Post-Newtonian-accurate pulsar timing array signals induced by inspiralling eccentric binaries: accuracy, computational cost, and single-pulsar search." arXiv eprints; 2210.11454.
Published in Journal of Astrophysics and Astronomy, 2022
Lessons on observation strategies and analysis methods learned from the InPTA experiment relevant for a future PTA experiment with the Square Kilometer Array (SKA) telescope.
Recommended citation: Joshi, BC et al. (2022); "Nanohertz Gravitational Wave Astronomy during the SKA Era: An InPTA perspective." JApA. 43, 2, 98. https://doi.org/10.1007/s12036-022-09869-w
Published in Monthly Noticed of the Royal Astronomical Society, 2022
Application of the wideband timing method by Tim Pennucci for low-frequency data from the GMRT. This method allows us to simultaneously measure the pulse time of arrival and the dispersion measure for a pulsar observation while dealing with frequency-dependent profile evolution.
Recommended citation: Nobleson, K et al. (2022); "Low-frequency wideband timing of InPTA pulsars observed with the uGMRT." MNRAS; 512, 1, 1234-1243. https://doi.org/10.1093/mnras/stac532
Published in Monthly Notices of the Royal Astronomical Society: Letters, 2021
We investigate the 2021 profile change event in PSR J1713+0747 using the upgraded Giant Metre-wave Radio Telescope.
Recommended citation: Singha, J et al. (2021); "Evidence for profile changes in PSR J1713+0747 using the uGMRT." MNRASL; 507, 1, L57–L61. https://doi.org/10.1093/mnrasl/slab098
Published in Astronomy & Astrophysics, 2021
We present high-precision estimates of interstellar dispersion measure for four pulsars over a year.
Recommended citation: Krishnakumar, MA et al. (2021). "High precision measurements of interstellar dispersion measure with the upgraded GMRT." A&A. 651, A5. https://doi.org/10.1051/0004-6361/202140340
Published in Publications of the Astronomical Society of Australia, 2021
We present a data reduction pipeline for the upgrated Giant Metre-wave Radio Telescope pulsar observations.
Recommended citation: Susobhanan, A et al. (2021). "pinta: The uGMRT data processing pipeline for the Indian Pulsar Timing Array." PASA. 38, e017. https://doi.org/10.1017/pasa.2021.12
Published in Monthly Notices of the Royal Astronomical Society, 2021
We model the radio jet position angle variations of the blazar OJ 287 using its binary black hole central engine model.
Recommended citation: Dey, L et al. (2021); "Explaining temporal variations in the jet position angle of blazar OJ 287 using its binary black hole central engine model." MNRAS. 503, 3, 4400–4412. https://doi.org/10.1093/mnras/stab730
Published in Physical Review D, 2020
We present a computationally efficient method to compute PTA signals due to eccentric supermassive black hole binaries.
Recommended citation: Susobhanan, A et al. (2020). "Pulsar timing array signals induced by black hole binaries in relativistic eccentric orbits." PRD. 101, 043022. https://doi.org/10.1103/PhysRevD.101.043022
Published in Universe, 2019
A review article describing the binary black hole central engine model of the blazar OJ 287.
Recommended citation: Dey, L et al. (2019). ".The Unique Blazar OJ 287 and Its Massive Binary Black Hole Central Engine." Universe. 5, 5, 108. https://doi.org/10.3390/universe5050108
Published in Journal of Astrophysics and Astronomy, 2018
Article introducing the Indian Pulsar Timing Array experiment.
Recommended citation: Joshi, BC et al. (2018). "Precision pulsar timing with the ORT and the GMRT and its applications in pulsar astrophysics." JApA. 39, 4, 10. https://doi.org/10.1007/s12036-018-9549-y
Published in Monthly Notices of the Royal Astronomical Society, 2018
We investigate the effects of advance of pericentre in nearly circular pulsar binaries.
Recommended citation: Susobhanan, A et al. (2018). "Exploring the effect of periastron advance in small-eccentricity binary pulsars." MNRAS. 480, 4, 5260–5271. https://doi.org/10.1093/mnras/sty2177
Published in Physical Review D, 2017
We solve the third post-Newtonian accurate Kepler equation associated with the motion of relativistic binaries.
Recommended citation: Boetzel, A et al. (2017). "Solving post-Newtonian accurate Kepler equation." PRD. 96, 044011. https://doi.org/10.1103/PhysRevD.96.044011