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Research Areas
  • Pulsar Timing
  • Nano–Hertz Gravitational Waves
  • Pulsar Emission Mechanism
  • Pulsar Dynamics
  • Double Neutron Star Systems
  • Pulsar Population Modeling

Benetge Bhakthi Pranama Perera

Benetge was born in Sri Lanka and did his college degree at University of Colombo. He moved to the US for his higher studies and received his PhD in Physics from West Virginia University in 2013. Benetge then started working as a postdoctoral research associate at The University of Manchester in the UK, and afterwards Benetge joined the Arecibo radio astronomy group as an observatory scientist in June 2019.

Benetge is a radio astronomer and predominantly conducts research in and using radio pulsars. His main research focus is to improve and use pulsars as precise physical probes and his expertise lies in various aspects of pulsar research, including high–precision pulsar timing, emission mechanism of pulsars, pulsar dynamics, double neutron star systems, emission variabilities, and spin irregularities of pulsars. Benetge is interested in gravitational waves and is also closely involved in working with pulsar timing arrays (PTAs) at the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), European PTA, and the International PTA towards their primary goal of searching for and detecting low–frequency gravitational waves using high–precision pulsar timing. Benetge is also interested in radio transients such as Fast Radio Bursts.

Benetge has worked on the detection of low–frequency nano–hertz gravitational waves using pulsar timing arrays. He also works on understanding and modeling the emission behavior of pulsars, and searches for new FRBs and pulsars.

Benetage has mentored several students and researchers. The following are the names of the individuals he has worked with.

The University of Manchester

Joseph Kwofie, M.S. –– Co–supervised (2017 – 2018)

Durshan Patel, MPhys –– Co–supervised (2017 – 2018)

Chia Min Tan, MPhys –– Co–supervised (2014 – 2015)

Jihong Ju, MPhys –– Co–supervised (2014 – 2015)


Other Universities

Xinyu Pan (Undergrad –– Peking University) (2018 summer)

Kevin Stahl (Undergrad –– University of Virginia) (2014 summer)

Gage Siebert (Undergrad –– University of Wisconsin–Madison) (2019 summer)

Peer-reviewed publications


2020

Ferdman, R. D.; Freire, P. C. C.; Perera, B. B. P.; pol, N.; Camilo, F.; Chatterjee, S.; Cordes, J. M.; Craw– ford, F.; Hessels, J. W. T.; Kaspi, V. M.; McLaughlin, M. A; Parent, E.,; Stairs, I., H.; van Leeuwen, J.; 2020, Nature, 583, 211; Asymmetric mass ratios for bright double neutron–star mergers
https://ui.adsabs.harvard.edu/abs/2020Natur.583..211F/abstract

Behrens, E. A.; Ransom, S. M.; Madison, D. R.; Arzoumanian, Z.; Crowter, K.; DeCesar, M. E.; Demorest, P. B.; Dolch, T.; Ellis, J. A.; Ferdman, R. D.; Ferrara, E. C.; Fonseca, E.; Gentile, P. A.; Jones, G.; Jones, M. L.; Lam, M. T.; Levin, L.; Lorimer, D. R.; Lynch, R. S.; McLaughlin, M. A.; Ng, C.; Nice, D. J.; Pennucci, T. T.; Perera, B. B. P.; Ray, P. S.; Spiewak, R.; Stairs, I. H.; Stovall, K.; Swiggum, J. K.; Zhu, W. W.; 2019, ApJ, 893, L8; The NANOGrav 11–year Data Set: Constraints on Planetary Masses Around 45 Millisecond Pulsars
https://ui.adsabs.harvard.edu/abs/2020ApJ...893L...8B/abstract

Hobbs, G.; Guo, L.; Caballero, R. N.; Coles, W.; Lee, K. J.; Manchester, R. N.; Reardon, D. J.; Matsakis, D.; Tong, M. L.; Arzoumanian, Z.; Bailes, M.; Bassa, C. G.; Bhat, N. D. R.; Brazier, A.; Burke–Spolaor, S.; Champion, D. J.; Chatterjee, S.; Cognard, I.; Dai, S.; Desvignes, G.; Dolch, T.; Ferdman, R. D.; Graikou, E.; Guillemot, L.; Janssen, G. H.; Keith, M. J.; Kerr, M.; Kramer, M.; Lam, M. T.; Liu, K.; Lyne, A.; Lazio, T. J. W.; Lynch, R.; McKee, J. W.; McLaughlin, M. A.; Mingarelli, C. M. F.; Nice, D. J.; Os?lowski, S.; Pennucci, T. T.; Perera, B. B. P.; Perrodin, D.; Possenti, A.; Russell, C. J.; Sanidas, S.; Sesana, A.; Shaifullah, G.; Shan– non, R. M.; Simon, J.; Spiewak, R.; Stairs, I. H.; Stappers, B. W.; Swiggum, J. K.; Taylor, S. R.; Theureau, G.; Toomey, L.; van Haasteren, R.; Wang, J. B.; Wang, Y.; Zhu, X. J.; 2020, MNRAS, 491, 5951; A pulsar–based timescale from the International Pulsar Timing Array
https://ui.adsabs.harvard.edu/abs/2020MNRAS.491.5951H/abstract

2019

Perera, B. B. P.; DeCesar, M. E.; Demorest, P. B.; Kerr, M.; Lentati, L.; Nice, D. J.; Oslowski, S.; Ransom, S. M.; Keith, M. J.; Arzoumanian, Z.; Bailes, M.; Baker, P. T.; Bassa, C. G.; Bhat, N. D. R.; Brazier, A.; Burgay, M.; Burke–Spolaor, S.; Caballero, R. N.; Champion, D. J.; Chatterjee, S.; Chen, S.; Cognard, I.; Cordes, J. M.; Crowter, K.; Dai, S.; Desvignes, G.; Dolch, T.; Ferdman, R. D.; Ferrara, E. C.; Fonseca, E.; Goldstein, J. M.; Graikou, E.; Guillemot, L.; Hazboun, J. S.; Hobbs, G.; Hu, H.; Islo, K.; Janssen, G. H.; Karuppusamy, R.; Kramer, M.; Lam, M. T.; Lee, K. J.; Liu, K.; Luo, J.; Lyne, A. G.; Manchester, R. N.; McKee, J. W.; McLaughlin, M. A.; Mingarelli, C. M. F.; Parthasarathy, A. P.; Pennucci, T. T.; Perrodin, D.; Possenti, A.; Reardon, D. J.; Russell, C. J.; Sanidas, S. A.; Sesana, A.; Shaifullah, G.; Shannon, R. M.; Siemens, X.; Simon, J.; Spiewak, R.; Stairs, I. H.; Stappers, B. W.; Swiggum, J. K.; Taylor, S. R.; Theureau, G.; Tiburzi, C.; Vallisneri, M.; Vecchio, A.; Wang, J. B.; Zhang, S. B.; Zhang, L.; Zhu, W. W.; Zhu, X. J.; 2019, MNRAS, 490, 4666; The International Pulsar Timing Array: Second data release
https://ui.adsabs.harvard.edu/abs/2019MNRAS.490.4666P/abstract

Perera, B. B. P.; Barr, E. D.; Mickaliger, M. B.; Lyne, A. G.; Lorimer, D. R.; Stappers, B. W.; Eatough, R. P.; Kramer, M.; Ng, C.; Spiewak, R.; 2019, MNRAS, 487, 1025; The dynamics of Galactic centre pulsars: constraining pulsar distances and intrinsic spin–down
https://ui.adsabs.harvard.edu/abs/2019MNRAS.487.1025P/abstract

2018

Caballero, R. N.; Guo, Y. J.; Lee, K. J.; Lazarus, P.; Champion, D. J.; Desvignes, G.; Kramer, M.; Plant, K.; Arzoumanian, Z.; Bailes, M.; Bassa, C. G.; Bhat, N. D. R.; Brazier, A.; Burgay, M.; Burke–Spolaor, S.; Chamberlin, S. J.; Chatterjee, S.; Cognard, I.; Cordes, J. M.; Dai, S.; Demorest, P.; Dolch, T.; Lam, M. T.; Lasky, P. D.; Lazio, T. J. W.; Levin, L.; Liu, K.; Lommen, A. N.; Lorimer, D. R.; Ferdman, R. D.; Fonseca, E.; Gair, J. R.; Garver–Daniels, N.; Gentile, P.; Gonzalez, M. E.; Graikou, E.; Guillemot, L.; Hobbs, G.; Janssen, G. H.; Karuppusamy, R.; Keith, M. J.; Kerr, M.; Lynch, R. S.; Madison, D. R.; Manchester, R. N.; McKee, J. W.; McLaughlin, M. A.; McWilliams, S. T.; Mingarelli, C. M. F.; Nice, D. J.; Osl?owski, S.; Palliyaguru, N. T.; Pennucci, T. T.; Perera, B. P. P.; Stovall, K.; Swiggum, J. K.; Taylor, S. R.; Theureau, G.; Tiburzi, C.; Toomey, L.; van Haasteren, R.; Perrodin, D.; Possenti, A.; Ransom, S. M.; Reardon, D. J.; Sanidas, S. A.; Sesana, A.; Shaifullah, G.; Shannon, R. M.; Siemens, X.; Simon, J.; Spiewak, R.; Stairs, I.; Stappers, B.; Stinebring, D. R.; van Straten, W.; Verbiest, J. P. W.; Wang, J. B.; Zhu, X. J.; Zhu, W. W.; 2018, MNRAS, 481, 5501; Studying the solar system with the International Pulsar Timing Array
https://ui.adsabs.harvard.edu/abs/2018MNRAS.481.5501C/abstract

Perera, B. B. P.; Stappers, B. W.; Babak, S.; Keith, M. J.; Antoniadis, J.; Bassa, C. G.; Caballero, R. N.; Champion, D. J.; Cognard, I.; Desvignes, G.; Graikou, E.; Guillemot, L.; Janssen, G. H.; Karuppusamy, R.; Kramer, M.; Lazarus, P.; Lentati, L.; Liu, K.; Lyne, A. G.; McKee, J. W.; Osl?owski, S.; Perrodin, D.; Sanidas, S. A.; Sesana, A.; Shaifullah, G.; Theureau, G.; Verbiest, J. P. W.; Taylor, S. R.; 2018, MNRAS, 478, 218; Improving timing sensitivity in the microhertz frequency regime: limits from PSR J1713+0747 on gravitational waves produced by super–massive black–hole binaries
https://ui.adsabs.harvard.edu/abs/2018MNRAS.478..218P/abstract

Pol, N.; McLaughlin, M.; Kramer, M.; Stairs, I.; Perera, B. B. P.; Possenti, A.; 2018, ApJ, 853, 73; A Direct Measurement of Sense of Rotation of PSR J0737?3039A
https://ui.adsabs.harvard.edu/abs/2018ApJ...853...73P/abstract

2017

Perera, B. B. P.; Stappers, B. W.; Lyne, A. G; Bassa, C. G.; Cognard, I.; Guillemot, L.; Kramer, M.; Theureau, G.; Desvignes, G.; 2017, MNRAS, 468, 2114; Evidence for an intermediate–mass black hole in the globular cluster NGC 6624
https://ui.adsabs.harvard.edu/abs/2017MNRAS.468.2114P/abstract

2016

Lentati, L.; Shannon, R. M.; Coles, W. A.; Verbiest, J. P. W.; van Haasteren, R.; Ellis, J. A.; Caballero, R. N.; Manchester, R. N.; Arzoumanian, Z.; Babak, S.; Bassa, C. G.; Bhat, N. D. R.; Brem, P.; Burgay, M.; Burke–Spolaor, S.; Champion, D.; Chatterjee, S.; Cognard, I.; Cordes, J. M.; Dai, S.; Demorest, P.; Desvignes, G.; Dolch, T.; Ferdman, R. D.; Fonseca, E.; Gair, J. R.; Gonzalez, M. E.; Graikou, E.; Guillemot, L.; Hessels, J. W. T.; Hobbs, G.; Janssen, G. H.; Jones, G.; Karuppusamy, R.; Keith, M.; Kerr, M.; Kramer, M.; Lam, M. T.; Lasky, P. D.; Lassus, A.; Lazarus, P.; Lazio, T. J. W.; Lee, K. J.; Levin, L.; Liu, K.; Lynch, R. S.; Madison, D. R.; McKee, J.; McLaughlin, M.; McWilliams, S. T.; Mingarelli, C. M. F.; Nice, D. J.; Osl?owski, S.; Pennucci, T. T.; Perera, B. B. P.; Perrodin, D.; Petiteau, A.; Possenti, A.; Ransom, S. M.; Reardon, D.; Rosado, P. A.; Sanidas, S. A.; Sesana, A.; Shaifullah, G.; Siemens, X.; Smits, R.; Stairs, I.; Stappers, B.; Stinebring, D. R.; Stovall, K.; Swiggum, J.; Taylor, S. R.; Theureau, G.; Tiburzi, C.; Toomey, L.; Vallisneri, M.; van Straten, W.; Vecchio, A.; Wang, J.–B.; Wang, Y.; You, X. P.; Zhu, W. W.; Zhu, X.–J.; 2016, MNRAS, 458, 2161; From spin noise to systematics: stochastic processes in the first International Pulsar Timing Array data release
https://ui.adsabs.harvard.edu/abs/2016MNRAS.458.2161L/abstract

Verbiest, J. P. W.; Lentati, L.; Hobbs, G.; van Haasteren, R.; Demorest, P. B.; Janssen, G. H.; Wang, J.–B.; Desvignes, G.; Caballero, R. N.; Keith, M. J.; Champion, D. J.; Arzoumanian, Z.; Babak, S.; Bassa, C. G.; Bhat, N. D. R.; Brazier, A.; Brem, P.; Burgay, M.; Burke–Spolaor, S.; Chamberlin, S. J.; Chatterjee, S.; Christy, B.; Cognard, I.; Cordes, J. M.; Dai, S.; Dolch, T.; Ellis, J. A.; Ferdman, R. D.; Fonseca, E.; Gair, J. R.; Garver–Daniels, N. E.; Gentile, P.; Gonzalez, M. E.; Graikou, E.; Guillemot, L.; Hessels, J. W. T.; Jones, G.; Karuppusamy, R.; Kerr, M.; Kramer, M.; Lam, M. T.; Lasky, P. D.; Lassus, A.; Lazarus, P.; Lazio, T. J. W.; Lee, K. J.; Levin, L.; Liu, K.; Lynch, R. S.; Lyne, A. G.; Mckee, J.; McLaughlin, M. A.; McWilliams, S. T.; Madison, D. R.; Manchester, R. N.; Mingarelli, C. M. F.; Nice, D. J.; Osl?owski, S.; Palliyaguru, N. T.; Pennucci, T. T.; Perera, B. B. P.; Perrodin, D.; Possenti, A.; Petiteau, A.; Ransom, S. M.; Reardon, D.; Rosado, P. A.; Sanidas, S. A.; Sesana, A.; Shaifullah, G.; Shannon, R. M.; Siemens, X.; Simon, J.; Smits, R.; Spiewak, R.; Stairs, I. H.; Stappers, B. W.; Stinebring, D. R.; Stovall, K.; Swiggum, J. K.; Taylor, S. R.; Theureau, G.; Tiburzi, C.; Toomey, L.; Vallisneri, M.; van Straten, W.; Vecchio, A.; Wang, Y.; Wen, L.; You, X. P.; Zhu, W. W.; Zhu, X.–J.; 2016, MNRAS, 458, 1267; The International Pulsar Timing Array: First data release
https://ui.adsabs.harvard.edu/abs/2016MNRAS.458.1267V/abstract

Perera, B. B. P.; Stappers, B. W.; Weltevrede, P.; Lyne, A. G.; Rankin, J. M., 2016, MNRAS, 455, 1071; Correlated spin–down rates and radio emission in PSR B1859+07
https://ui.adsabs.harvard.edu/abs/2016MNRAS.455.1071P/abstract

2015

Bogdanov, S.; Archibald, A. M.; Bassa, C.; Deller, A. T.; Halpern, J. P.; Heald, G.; Hessels, J. W. T.; Janssen, G. H.; Lyne, A. G.; Mold ?on, J.; Paragi, Z.; Patruno, A.; Perera, B. B. P.; Stappers, B. W.; Tendulkar, S. P.; D’Angelo, C. R.; Wijnands, R., 2015, ApJ, 806, 148; Coordinated X–Ray, Ultraviolet, Optical, and Radio Observations of the PSR J1023+0038 System in a Low–mass X–Ray Binary State
https://ui.adsabs.harvard.edu/abs/2015ApJ...806..148B/abstract

Kim C., Perera B. B. P., and McLaughlin M. A., 2015, MNRAS, 448, 928; Implications of PSR J0737–3039B for the Galactic NS–NS binary merger rate
https://ui.adsabs.harvard.edu/abs/2015MNRAS.448..928K/abstract

Perera, B. B. P.; Stappers, B. W.; Weltevrede, P.; Lyne, A. G.; Bassa, C. G., 2015, MNRAS, 446, 1380; Understanding the spin–down rate changes of PSR B0919+06
https://ui.adsabs.harvard.edu/abs/2015MNRAS.446.1380P/abstract

2014

Dolch, T.; Lam, M. T.; Cordes, J.; Chatterjee, S.; Bassa, C.; Bhattacharyya, B.; Champion, D. J.; Cognard, I.; Crowter, K.; Demorest, P. B.; Hessels, J. W. T.; Janssen, G.; Jenet, F. A.; Jones, G.; Jordan, C.; Karuppusamy, R.; Keith, M.; Kondratiev, V.; Kramer, M.; Lazarus, P.; Lazio, T. J. W.; Lee, K. J.; McLaughlin, M. A.; Roy, J.; Shannon, R. M.; Stairs, I.; Stovall, K.; Verbiest, J. P. W.; Madison, D. R.; Palliyaguru, N.; Perrodin, D.; Ran– som, S.; Stappers, B.; Zhu, W. W.; Dai, S.; Desvignes, G.; Guillemot, L.; Liu, K.; Lyne, A.; Perera, B. B. P.; Petroff, E.; Rankin, J. M.; Smits, R., 2014, ApJ, 794, 21; A 24 Hr Global Campaign to Assess Precision Timing of the Millisecond Pulsar J1713+0747
https://ui.adsabs.harvard.edu/abs/2014ApJ...794...21D/abstract

Perera B. B. P., Kim C., McLaughlin M. A., Ferdman R. D., Kramer M., Stairs I. H.,Freire P. C. C.,Possenti A., 2014, ApJ, 787, 51; Realistic Modeling of the Pulse Profile of PSR J0737–3039A
https://ui.adsabs.harvard.edu/abs/2014ApJ...787...51P/abstract

2013

Perera B. B. P., McLaughlin M. A., Cordes J. M., Kerr M., Burnett T. H., Harding A. K., 2013, ApJ, 776, 61; Modeling the non–recycled Fermi gamma–ray pulsar population
https://ui.adsabs.harvard.edu/abs/2013ApJ...776...61P/abstract

2012

Perera B. B. P., Lomiashvili D., Gourgouliatos K. N., McLaughlin M. A., Lyutikov M., 2012, ApJ, 750, 130; PSR J0737–3039B: A probe of radio pulsar emission heights
https://ui.adsabs.harvard.edu/abs/2012ApJ...750..130P/abstract

2010

Perera B. B. P., McLaughlin M. A., Kramer M., Stairs I. H., Ferdman R. D., Freire P. C. C., Possenti A., Breton R. P., Manchester R. N., Burgay M., Lyne A. G., Camilo F., 2010, ApJ, 721, 1193; The Evolution of PSR J0737–3039B and a Model for Relativistic Spin Precession
https://ui.adsabs.harvard.edu/abs/2010ApJ...721.1193P/abstract

Non Peer-reviewed publications


2019

Anish Roshi, D., Anderson, L. D., Araya, E., Balser, D., Brisken, W., Brum, C., Campbell, D., Chatterjee, S., Churchwell, E., Condon, J., Cordes, J., Cordova, F., Fernandez, Y., Gago, J., Ghosh, T., Goldsmith, P. F., Heiles, C., Hickson, D., Jeffs, B., Jones, K. M., Lautenbach, J., Lewis, B. M., Lynch, R. S., Manoharan, P. K., Marshall, S., Minchin, R., Palliyaguru, N. T., Perera, B. B. P., Perillat, P., Pinilla–Alonso, N., Pisano, D. J., Quintero, L., Raizada, S., Ransom, S. M., Fernandez–Rodriguez, F. O., Salter, C. J., Santos, P., Sulzer, M., Tay– lor, P. A., Venditti, F. C. F., Venkataraman, A., Virkki, A. K., Wolszczan, A., Womack, M., Zambrano–Marin, L. F., 2019, arXiv e–prints, 1907.06052; Astro2020 Activities and Projects White Paper: Arecibo Observatory in the Next Decade
https://ui.adsabs.harvard.edu/abs/2019BAAS...51g.244R/abstract

2018

Perera, B. B. P., Stappers, B. W., Lyne, A. G., Bassa, C. G., Cognard, I., Guillemot, L., Kramer, M., Theureau, G., Desvignes, G., 2018, IAU Symposium, 337, 247; Evidence for an intermediate–mass black hole in NGC 6624
https://ui.adsabs.harvard.edu/abs/2018IAUS..337..247P/abstract

2011

Gourgouliatos, K. N., Lyutikov, M., Lomiashvili, D., Perera, B. B. P., 2011, AIPC, 1357, 304; The Double Pulsar: Wind–Magnetosphere Interaction
https://ui.adsabs.harvard.edu/abs/2011AIPC.1357..304G/abstract

Perera, B. B. P., McLaughlin, M. A., Kramer, M., Stairs, I. H., Ferdman, R. D., Freire, P. C. C., Possenti, A., Breton, R. P., Manchester, R. N., Burgay, M., Lyne, A. G., Camilo, F., 2011, AIPC, 1357, 105; The evolution of PSR J0737–3039B and a model for relativistic spin precession
https://ui.adsabs.harvard.edu/abs/2011AIPC.1357..105P/abstract