Zobrazeno 1 - 10
of 14
pro vyhledávání: '"L. S. Oswald"'
Autor:
T. Gautam, A. Ridolfi, P. C. C. Freire, R. S. Wharton, Y. Gupta, S. M. Ransom, L. S. Oswald, M. Kramer, M. E. DeCesar
Globular clusters contain a unique pulsar population, with many exotic systems that can form only in their dense stellar environments. The leap in sensitivity of the upgraded Giant Metrewave Radio Telescope (uGMRT) in India, especially at low radio f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92d753ae0104881a8d357872f33951fe
https://doi.org/10.1051/0004-6361/202243062
https://doi.org/10.1051/0004-6361/202243062
Autor:
Michael Keith, Charlotte Sobey, Simon Johnston, Aditya Parthasarathy, Ryan Shannon, R. N. Manchester, Matthew Kerr, Shi Dai, L. S. Oswald, Patrick Weltevrede
The major programme for observing young, non-recycled pulsars with the Parkes telescope has transitioned from a narrow-band system to an ultra-wideband system capable of observing between 704 and 4032 MHz. We report here on the initial two years of o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6e518c56dd7186efb59b5126831354f
https://doi.org/10.1093/mnras/stab095
https://doi.org/10.1093/mnras/stab095
Autor:
Simon Johnston, Patrick Weltevrede, Ryan Shannon, Shi Dai, L. S. Oswald, Charlotte Sobey, Matthew Kerr, Aditya Parthasarathy, R. N. Manchester
We present high signal-to-noise, full polarization pulse profiles for 40 bright, 'slowly'-rotating (non-recycled) pulsars using the new Ultra-Wideband Low-frequency (UWL; 704-4032 MHz) receiver on the Parkes radio telescope. We obtain updated and acc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::210ed308711ab471e20f3ae0f9c32b07
https://ora.ox.ac.uk/objects/uuid:2c4e8565-75a2-4dd6-bef7-1c393d143269
https://ora.ox.ac.uk/objects/uuid:2c4e8565-75a2-4dd6-bef7-1c393d143269
Autor:
Andrew Melatos, Patrick Weltevrede, Richard N. Manchester, S. Johnston, Marcus E. Lower, Matthew Bailes, Aditya Parthasarathy, Shi Dai, Charlotte Sobey, Liam Dunn, Ryan Shannon, L. S. Oswald, Matthew Kerr
We report on a timing programme of 74 young pulsars that have been observed by the Parkes 64-m radio telescope over the past decade. Using modern Bayesian timing techniques, we have measured the properties of 124 glitches in 52 of these pulsars, of w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb24a45ac1b0b8ca8eb09ec82287ee2f
https://doi.org/10.1093/mnras/stab2678
https://doi.org/10.1093/mnras/stab2678
Autor:
L S Oswald, S Johnston, A Karastergiou, S Dai, M Kerr, M E Lower, R N Manchester, R M Shannon, C Sobey, P Weltevrede
The radio polarization properties of the pulsar population are only superficially captured by the conventional picture of pulsar radio emission. We study the broadband polarization of 271 young radio pulsars, focusing particularly on circular polariz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::608044a6dd253cee12b31119cc7c1fd7
http://arxiv.org/abs/2301.05628
http://arxiv.org/abs/2301.05628
Autor:
X Song, P Weltevrede, A Szary, G Wright, M J Keith, A Basu, S Johnston, A Karastergiou, R A Main, L S Oswald, A Parthasarathy, B Posselt, M Bailes, S Buchner, B Hugo, M Serylak
We report on the subpulse modulation properties of 1198 pulsars using the Thousand-Pulsar-Array programme on MeerKAT. About 35% of the analysed pulsars exhibit drifting subpulses which are more pronounced towards the deathline, consistent with previo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d963b99c90fc4c4d2224855ce656547a
Autor:
M. Serylak, Ryan Shannon, Bettina Posselt, Aris Karastergiou, Simon Johnston, S. Buchner, Matthew Bailes, W. van Straten, R. Spiewak, Michael Kramer, Daniel J. Reardon, Michael Keith, L. S. Oswald, M. Geyer, Aditya Parthasarathy, V. Venkatraman Krishnan
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 504:1115-1128
We have measured the scattering timescale, $\tau$, and the scattering spectral index, $\alpha$, for 84 single-component pulsars. Observations were carried out with the MeerKAT telescope as part of the Thousand-Pulsar-Array programme in the MeerTime p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95c3ca5b1e68ace8bf7d09cd81324b3f
https://doi.org/10.1093/mnras/stab980
https://doi.org/10.1093/mnras/stab980
Autor:
B Posselt, A Karastergiou, S Johnston, A Parthasarathy, L S Oswald, R A Main, A Basu, M J Keith, X Song, P Weltevrede, C Tiburzi, M Bailes, S Buchner, M Geyer, M Kramer, R Spiewak, V Venkatraman Krishnan
We present the largest single survey to date of average profiles of radio pulsars, observed and processed using the same telescope and data reduction software. Specifically, we present measurements for 1170 pulsars, observed by the Thousand Pulsar Ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::729578e188a052c34cf4833a3ce284e8
In spite of the rich phenomenology of the polarization properties of radio pulsars, the rotating vector model (RVM) created 50 years ago remains the best method to determine the beam geometry of a pulsar. We apply the RVM to a sample of 854 radio pul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a85e8e9ed36da0a00434de1f681bd5cc
Autor:
R A Main, A Parthasarathy, S Johnston, A Karastergiou, A Basu, A D Cameron, M J Keith, L S Oswald, B Posselt, D J Reardon, X Song, P Weltevrede
We present the detection of 107 pulsars with interstellar scintillation arcs at 856--1712\,MHz, observed with the MeerKAT Thousand Pulsar Array Programme. Scintillation arcs appear to be ubiquitous in clean, high S/N observations, their detection mai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c50c03241d9b6788db81cc79031993f6