Polarimetry of the Eclipsing Pulsar PSR J1748-2446A
MetadataShow full item record
© 2018. The American Astronomical Society. All rights reserved.. Observations with the Parkes radio telescope of the eclipsing millisecond binary pulsar PSR J1748-2446A, which is in the globular cluster Terzan 5, are presented. These include the first observations of this pulsar in the 3 GHz frequency band, along with simultaneous observations in the 700 MHz band, and new observations around 1400 MHz. We show that the pulsar signal is not eclipsed in the 3 GHz band and observe the known eclipses in the lower-frequency bands. We find that the observed pulse signal becomes depolarized during particular orbital phases and postulate that this depolarization occurs because of rotation-measure fluctuations resulting from turbulence in the stellar wind responsible for the eclipses.
Showing items related by title, author, creator and subject.
Bates, S.; Bailes, M.; Bhat, Ramesh; Burgay, M.; Burke-Spolaor, S.; D'Amico, N.; Jameson, A.; Johnston, S.; Keith, M.; Kramer, M.; Levin, L.; Lyne, A.; Milia, S.; Possenti, A.; Stappers, B.; van Straten, W. (2011)We present the discovery of five millisecond pulsars found in the mid-Galactic latitude portion of the High Time Resolution Universe (HTRU) survey. The pulsars have rotational periods from ~2.3ms to ~7.5ms, and all are ...
The High Time Resolution Universe survey - XI. Discovery of five recycled pulsars and the optical detectability of survey white dwarf companionsBates, S.; Thornton, D.; Bailes, M.; Barr, E.; Bassa, C.; Bhat, Ramesh; Burgay, M.; Burke-Spolaor, S.; Champion, D.; Flynn, C.; Jameson, A.; Johnston, S.; Keith, M.; Kramer, M.; Levin, L.; Lyne, A.; Milia, S.; Ng, C.; Petroff, E.; Possenti, A.; Stappers, B.; van Straten, W.; Tiburzi, C. (2015)We present the discovery of a further five recycled pulsar systems in the mid-Galactic latitude portion of the High Time Resolution Universe survey. The pulsars have rotational periods ranging from 2 to 66 ms, and four ...
The MAVERIC survey: a hidden pulsar and a black hole candidate in ATCA radio imaging of the globular cluster NGC 6397Zhao, Yue; Heinke, Craig O; Tudor, Vlad; Bahramian, Arash; Miller-Jones, James ; Sivakoff, Gregory R; Strader, Jay; Chomiuk, Laura; Shishkovsky, Laura; Maccarone, Thomas J; Marcano, Manuel Pichardo; Gelfand, Joseph D (2020)Using a 16.2 hr radio observation by the Australia Telescope Compact Array (ATCA) and archival Chandra data, we found $>5\sigma$ radio counterparts to 4 known and 3 new X-ray sources within the half-light radius ...