Show simple item record

dc.contributor.authorVenter, Christo
dc.date.accessioned2012-09-06T08:50:44Z
dc.date.available2012-09-06T08:50:44Z
dc.date.issued2011
dc.identifier.citationVenter, C. et al. 2011. Discovery of two millisecond pulsars in fermi sources with the nancay radio telescope. Astrophysical journal, 732(47):1-11. [http://iopscience.iop.org/0004-637X]en_US
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357 (Online)
dc.identifier.urihttp://hdl.handle.net/10394/7249
dc.description.abstractWe report the discovery of two millisecond pulsars in a search for radio pulsations at the positions of Fermi-Large Area Telescope sources with no previously known counterparts, using the Nan¸cay Radio Telescope. The two millisecond pulsars, PSRs J2017+0603 and J2302+4442, have rotational periods of 2.896 and 5.192 ms and are both in binary systems with low-eccentricity orbits and orbital periods of 2.2 and 125.9 days, respectively, suggesting long recycling processes. Gamma-ray pulsations were subsequently detected for both objects, indicating that they power the associated Fermi sources in which they were found. The gamma-ray light curves and spectral properties are similar to those of previously detected gamma-ray millisecond pulsars. Detailed modeling of the observed radio and gamma-ray light curves shows that the gamma-ray emission seems to originate at high altitudes in their magnetospheres. Additionally, X-ray observations revealed the presence of an X-ray source at the position of PSR J2302+4442, consistent with thermal emission from a neutron star. These discoveries along with the numerous detections of radio-loud millisecond pulsars in gamma rays suggest that many Fermi sources with no known counterpart could be unknown millisecond pulsars.en_US
dc.description.urihttp://dx.doi.org/10.1088/0004-637X/732/1/47
dc.description.urihttp://iopscience.iop.org/0004-637X/732/1/47/
dc.language.isoenen_US
dc.publisherIOP Publishingen_US
dc.subjectGamma rays: generalen_US
dc.subjectpulsars: generalen_US
dc.subjectpulsars: individual (J2017+0603, J2303+4442)en_US
dc.titleDiscovery of two millisecond pulsars in fermi sources with the nancay radio telescopeen_US
dc.typeArticleen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record