Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Evan Keane"'
Autor:
Manisha Caleb, Evan Keane
Publikováno v:
Universe, Vol 7, Iss 11, p 453 (2021)
Fast radio bursts (FRBs) have a story which has been told and retold many times over the past few years as they have sparked excitement and controversy since their pioneering discovery in 2007. The FRB class encompasses a number of microsecond- to mi
Externí odkaz:
https://doaj.org/article/3ed8e200a8c4469d891a35ead535d868
Autor:
Shivani Bhandari, Evan Keane, Marcus Lower, Adam Deller, Pravir Kumar, Chris Flynn, Ryan Shannon
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 512:3400-3413
The mechanism that produces fast radio burst (FRB) emission is poorly understood. Targeted monitoring of repeating FRB sources provides the opportunity to fully characterize the emission properties in a manner impossible with one-off bursts. Here, we
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Jankowski, F, Keane, E F & Stappers, B W 2021, ' Constraints on wide-band radiative changes after a glitch in PSR J1452–6036 ', Monthly Notices of the Royal Astronomical Society, vol. 504, no. 1, pp. 406-415 . https://doi.org/10.1093/mnras/stab824
Jankowski, F, Keane, E F & Stappers, B W 2021, ' Constraints on wide-band radiative changes after a glitch in PSR J1452–6036 ', Monthly Notices of the Royal Astronomical Society, vol. 504, no. 1, pp. 406-415 . https://doi.org/10.1093/mnras/stab824
We present high-sensitivity, wide-band observations (704 to 4032 MHz) of the young to middle-aged radio pulsar J1452-6036, taken at multiple epochs before and, serendipitously, shortly after a glitch occurred on 2019 April 27. We obtained the data us
Autor:
Matthew Bailes, Evan Keane, Chris Flynn, Vincent Morello, Simon Johnston, Renée Spiewak, Ewan Barr, Michael Kramer, Shivani Bhandari, M. Burgay, V. Venkatraman Krishnan, Fabian Jankowski, A. Possenti
Publikováno v:
Monthly Notices of the Royal Astronomical Society
The SUrvey for Pulsars and Extragalactic Radio Bursts ran from 2014 April to 2019 August, covering a large fraction of the southern hemisphere at mid- to high-galactic latitudes, and consisting of 9-minute pointings taken with the 20-cm multibeam rec
Autor:
Teruaki Enoto, R. Remillard, Michael Kramer, Evan Keane, Zaven Arzoumanian, Andrew Jameson, Simon Johnston, Matthew Bailes, Paul S. Ray, Wynn C. G. Ho, Shivani Bhandari, M. Caleb, Benjamin Stappers, Sebastien Guillot, Vincent Morello, W. van Straten, Ewan Barr, C. Malacaria, C.M.L. Flynn, Slavko Bogdanov, Fabian Jankowski, Keith C. Gendreau
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 493 (1), pp.1165-1177. ⟨10.1093/mnras/staa321⟩
Morello, V, Keane, E F, Enoto, T, Guillot, S, Ho, W C G, Jameson, A, Kramer, M, Stappers, B W, Bailes, M, Barr, E D, Bhandari, S, Caleb, M, Flynn, C M L, Jankowski, F, Johnston, S, Van straten, W, Arzoumanian, Z, Bogdanov, S, Gendreau, K C, Malacaria, C, Ray, P S & Remillard, R A 2020, ' The SUrvey for Pulsars and Extragalactic Radio Bursts – IV. Discovery and polarimetry of a 12.1-s radio pulsar ', Monthly Notices of the Royal Astronomical Society, vol. 493, no. 1, pp. 1165-1177 . https://doi.org/10.1093/mnras/staa321
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 493 (1), pp.1165-1177. ⟨10.1093/mnras/staa321⟩
Morello, V, Keane, E F, Enoto, T, Guillot, S, Ho, W C G, Jameson, A, Kramer, M, Stappers, B W, Bailes, M, Barr, E D, Bhandari, S, Caleb, M, Flynn, C M L, Jankowski, F, Johnston, S, Van straten, W, Arzoumanian, Z, Bogdanov, S, Gendreau, K C, Malacaria, C, Ray, P S & Remillard, R A 2020, ' The SUrvey for Pulsars and Extragalactic Radio Bursts – IV. Discovery and polarimetry of a 12.1-s radio pulsar ', Monthly Notices of the Royal Astronomical Society, vol. 493, no. 1, pp. 1165-1177 . https://doi.org/10.1093/mnras/staa321
We report the discovery of PSR~J2251$-$3711, a radio pulsar with a spin period of 12.1 seconds, the second longest currently known. Its timing parameters imply a characteristic age of 15 Myr, a surface magnetic field of $1.3 \times 10^{13}$~G and a s
Autor:
Andrew Jameson, Thomas M. Tauris, V. Venkatraman Krishnan, Stefan Oslowski, Norbert Wex, Chris Flynn, Evan Keane, Paulo C. C. Freire, Pablo Rosado, Matthew Bailes, N. D. R. Bhat, W. van Straten
Publikováno v:
Krishnan, V V, Bailes, M, Van Straten, W, Wex, N, Freire, P C C, Keane, E F, Tauris, T M, Rosado, P A, Bhat, N D R, Flynn, C, Jameson, A & Osłowski, S 2020, ' Lense-Thirring frame dragging induced by a fast-rotating white dwarf in a binary pulsar system ', Science, vol. 367, no. 6477, pp. 577-580 . https://doi.org/10.1126/science.aax7007
Radio pulsars in short-period eccentric binary orbits can be used to study both gravitational dynamics and binary evolution. The binary system containing PSR J1141$-$6545 includes a massive white dwarf (WD) companion that formed before the gravitatio
Autor:
David A. Smith, Fernando Camilo, A. D. Cameron, A. Possenti, Renée Spiewak, Fabian Jankowski, Matthew Bailes, Paulo C. C. Freire, Matthew Kerr, Ewan Barr, M. B. Mickaliger, Evan Keane, M. Burgay, Michael Kramer, Maura McLaughlin, Simon Johnston, Michael Keith, Duncan R. Lorimer, Adam Kawash
Publikováno v:
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2021, 507 (4), pp.5303-5309. ⟨10.1093/mnras/stab2474⟩
Lorimer, D R, Kawash, A M, Freire, P C C, Smith, D A, Kerr, M, McLaughlin, M A, Mickaliger, M B, Spiewak, R, Bailes, M, Barr, E, Burgay, M, Cameron, A D, Camilo, F, Johnston, S, Jankowski, F, Keane, E F, Keith, M, Kramer, M & Possenti, A 2021, ' Timing observations of three Galactic millisecond pulsars ', Royal Astronomical Society. Monthly Notices, vol. 507, no. 4, pp. 5303-5309 . https://doi.org/10.1093/mnras/stab2474
Mon.Not.Roy.Astron.Soc., 2021, 507 (4), pp.5303-5309. ⟨10.1093/mnras/stab2474⟩
Lorimer, D R, Kawash, A M, Freire, P C C, Smith, D A, Kerr, M, McLaughlin, M A, Mickaliger, M B, Spiewak, R, Bailes, M, Barr, E, Burgay, M, Cameron, A D, Camilo, F, Johnston, S, Jankowski, F, Keane, E F, Keith, M, Kramer, M & Possenti, A 2021, ' Timing observations of three Galactic millisecond pulsars ', Royal Astronomical Society. Monthly Notices, vol. 507, no. 4, pp. 5303-5309 . https://doi.org/10.1093/mnras/stab2474
We report observed and derived timing parameters for three millisecond pulsars (MSPs) from observations collected with the Parkes 64-m telescope, Murriyang. The pulsars were found during re-processing of archival survey data by Mickaliger et al. One
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab281749b3a4fc7efe4b129f6d6fc412
http://arxiv.org/abs/2108.03946
http://arxiv.org/abs/2108.03946
Publikováno v:
The Astronomical Journal. 164:205
The next generation Very Large Array (ngVLA) will be the premiere centimeter-wave radio array in the Northern Hemisphere by the mid 2030s and thus has the potential to be one of the most effective instruments for the search for extraterrestrial intel
Autor:
Evan Keane, Vikram Ravi, Cherry Ng, Shivani Bhandari, L. C. Oostrum, Simon Johnston, Andrew Jameson, A. D. Cameron, A. Possenti, Lina Levin, Samuel Bates, Michael Kramer, Vincent Morello, D. J. Champion, Michael Keith, Benjamin Stappers, Chris Flynn, M. Burgay, Matthew Bailes, Ralph Eatough, Emily Petroff, Caterina Tiburzi, N. D. R. Bhat, W. van Straten, David J. Thornton, Sarah Burke-Spolaor, Ewan Barr
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Petroff, E, Oostrum, L C, Stappers, B, Bailes, M, Barr, E D, Bates, S, Bhandari, S, Bhat, N D R, Burgay, M, Burke-Spolaor, S, Cameron, A D, Champion, D J, Eatough, R P, Flynn, C M L, Jameson, A, Johnston, S, Keane, E F, Keith, M, Kramer, M, Levin, L, Morello, V, Ng, C, Possenti, A, Ravi, V, Van Straten, W, Thornton, D & Tiburzi, C 2019, ' A fast radio burst with a low dispersion measure ', Royal Astronomical Society. Monthly Notices, vol. 482, no. 3, pp. 3109-3115 . https://doi.org/10.1093/mnras/sty2909
Monthly Notices of the Royal Astronomical Society, 482(3), 3109-3115. Oxford University Press
Petroff, E, Oostrum, L C, Stappers, B, Bailes, M, Barr, E D, Bates, S, Bhandari, S, Bhat, N D R, Burgay, M, Burke-Spolaor, S, Cameron, A D, Champion, D J, Eatough, R P, Flynn, C M L, Jameson, A, Johnston, S, Keane, E F, Keith, M, Kramer, M, Levin, L, Morello, V, Ng, C, Possenti, A, Ravi, V, Van Straten, W, Thornton, D & Tiburzi, C 2019, ' A fast radio burst with a low dispersion measure ', Royal Astronomical Society. Monthly Notices, vol. 482, no. 3, pp. 3109-3115 . https://doi.org/10.1093/mnras/sty2909
Monthly Notices of the Royal Astronomical Society, 482(3), 3109-3115. Oxford University Press
Fast radio bursts (FRBs) are millisecond pulses of radio emission of seemingly extragalactic origin. More than 50 FRBs have now been detected, with only one seen to repeat. Here we present a new FRB discovery, FRB 110214, which was detected in the hi
Autor:
Sarah Burke-Spolaor, Cherry Ng, Caterina Tiburzi, N. D. R. Bhat, Samuel Bates, Lina Levin, Vincent Morello, Emily Petroff, M. Burgay, S. Cooper, Evan Keane, D. J. Champion, Michael Kramer, Matthew Bailes, W. van Straten, Michael Keith, Ewan Barr, Chris Flynn, Simon Johnston, A. Possenti, Andrew Jameson, Ralph Eatough, Benjamin Stappers, A. D. Cameron
Publikováno v:
Morello, V, Barr, D, Cooper, S, Bailes, M, Bates, S, Bhat, N D R, Burgay, M, Burke-Spolaor, S, Cameron, A D, Champion, D J, {Eatough}, R P, Flynn, C M L, Jameson, A, Johnston, S, Keith, M, Keane, E F, Kramer, M, Levin, L, Ng, C, Petroff, E, Possenti, A, Stappers, B, Van Straten, W & Tiburzi, C 2019, ' The High Time Resolution Universe survey XIV: Discovery of 23 pulsars through GPU-accelerated reprocessing ', Monthly Notices of the Royal Astronomical Society, vol. 483, no. 3, pp. 3673–3685 . https://doi.org/10.1093/mnras/sty3328
Monthly Notices of the Royal Astronomical Society, 483(3), 3673-3685. Oxford University Press
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 483(3), 3673-3685. Oxford University Press
Monthly Notices of the Royal Astronomical Society
We have performed a new search for radio pulsars in archival data of the intermediate and high Galactic latitude parts of the Southern High Time Resolution Universe pulsar survey. This is the first time the entire dataset has been searched for binary