期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 419, 期 2, 页码 1752-1765出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1365-2966.2011.19842.x
关键词
pulsars: general; pulsars: individual: PSR J1017-7156; pulsars: individual: PSR J1446-4701; pulsars: individual: PSR J1502-6752
资金
- Commonwealth of Australia for operation as a National Facility managed by CSIRO
- National Aeronautics and Space Administration
- Department of Energy in the United States
- Commissariat a l'Energie Atomique
- Centre National de la Recherche Scientifique/Institut National de Physique Nucleaire et de Physique des Particules in France
- Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy
- Ministry of Education, Culture, Sports, Science and Technology (MEXT)
- High Energy Accelerator Research Organization (KEK)
- Japan Aerospace Exploration Agency (JAXA) in Japan
- K. A. Wallenberg Foundation
- Swedish Research Council
- Swedish National Space Board in Sweden
- Istituto Nazionale di Astrofisica in Italy
- Centre National d'Etudes Spatiales in France
- Science and Technology Facilities Council [ST/G002487/1, ST/I001131/1, ST/J001562/1, ST/F002874/1] Funding Source: researchfish
- STFC [ST/F002874/1, ST/I001131/1, ST/J001562/1, ST/G002487/1] Funding Source: UKRI
We present the discovery of six millisecond pulsars (MSPs) in the High Time Resolution Universe (HTRU) survey for pulsars and fast transients carried out with the Parkes radio telescope. All six are in binary systems with approximately circular orbits and are likely to have white dwarf companions. PSR J1017-7156 has a high flux density and a narrow pulse width, making it ideal for precision timing experiments. PSR J1446-4701 and PSR J1125-5825 are coincident with gamma-ray sources, and folding the high-energy photons with the radio timing ephemeris shows evidence of pulsed gamma-ray emission. PSR J1502-6752 has a spin period of 26.7 ms, and its low period derivative implies that it is a recycled pulsar. The orbital parameters indicate it has a very low mass function, and therefore a companion mass much lower than usually expected for such a mildly recycled pulsar.
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