Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Samuel J. McSweeney"'
Autor:
Garvit Grover, N. D. Ramesh Bhat, Samuel J. McSweeney, Christopher P. Lee, Bradley W. Meyers, Chia Min Tan, Sanjay S. Kudale
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 1, p 78 (2024)
The phenomenon of pulsar nulling, where pulsars temporarily and stochastically cease their radio emission, is thought to be indicative of a “dying” pulsar, where radio emission ceases entirely. Here we report the discovery of a long-period pulsar
Externí odkaz:
https://doaj.org/article/97436edb93a641c280e8ab0eb19d5fab
Publikováno v:
The Astrophysical Journal, Vol 952, Iss 1, p 73 (2023)
The phenomenon of subpulse drifting is an important single-pulse phenomenon that can potentially provide important insights into the elusive radio emission mechanism in pulsars. We analyze the frequency behavior of the single pulses of B0818−41, ob
Externí odkaz:
https://doaj.org/article/8794a45e886a408998600579a34f336c
Autor:
Dilpreet Kaur, N. D. Ramesh Bhat, Shi Dai, Samuel J. McSweeney, Ryan M. Shannon, Sanjay Kudale, Willem van Straten
Making precise measurements of pulsar dispersion measures (DMs) and applying suitable corrections for them is amongst the major challenges in high-precision timing programmes such as pulsar timing arrays (PTAs). While the advent of wide-band pulsar i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c266f0a59fa935dd8fb3e0849e6c2ca
http://arxiv.org/abs/2204.07973
http://arxiv.org/abs/2204.07973
Autor:
Samuel J. McSweeney, N. D. Ramesh Bhat, Nicholas A. Swainston, Keegan R. Smith, Sanjay Kudale, Paul Hancock, Willem van Straten, Shi Dai, Ryan M. Shannon, Steven J. Tingay, Melanie Johnston-Hollitt, David L. Kaplan, Mia Walker
We report the independent discovery of PSR J0027-1956 with the Murchison Widefield Array (MWA) in the ongoing Southern-sky MWA Rapid Two-meter (SMART) pulsar survey. J0027-1956 has a period of ~1.306 s, a dispersion measure (DM) of ~20.869 pc cm^-3 ,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c793ae5bd835331aaaa7d0910ec85c5
Autor:
Manoneeta Chakraborty, Bhaswati Bhattacharya, Samuel J. McSweeney, Parul Janagal, N. D. Ramesh Bhat
Sub-pulse drifting in pulsar radio emission is considered to be one of the most promising phenomenon for uncovering the underlying physical processes. Here we present a detailed study of such a phenomenon in observations of PSR J1822$-$2256, made usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daf98f979a7d8f4c952817137b778de1
Publikováno v:
Proceedings of the International Astronomical Union. 13:376-377
We observed single pulses from PSR J0034-0721 (B0031-07) simultaneously at the MWA (185 MHz) and the GMRT (610 MHz). Correlation analyses reveal that the phase difference of the average profiles at the two frequencies differs from the phase differenc