Journal article ยท Preprint article
Neutron Star Interior Composition Explorer X-Ray Timing of the Radio and gamma-Ray Quiet Pulsars PSR J1412+7922 and PSR J1849-0001
We present new timing and spectral analyses of PSR J1412+7922 (Calvera) and PSR J1849-0001, which are only seen as pulsars in X-rays, based on observations conducted with the Neutron Star Interior Composition Explorer. We obtain updated and substantially improved pulse ephemerides compared to previous X-ray studies, as well as spectra that can be well fit by simple blackbodies and/or a power law.
Our refined timing measurements enable deeper searches for pulsations at other wavelengths and sensitive targeted searches by the Laser Interferometer Gravitational-Wave Observatory (LIGO)/Virgo for continuous gravitational waves from these neutron stars. Using the sensitivity of LIGO' s first observing run, we estimate constraints that a gravitational wave search of these pulsars would be obtained on the size of their mass deformation and r-mode fluid oscillation.
Language: | English |
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Year: | 2019 |
Pages: | 12 |
ISSN: | 15384357 and 0004637x |
Types: | Journal article and Preprint article |
DOI: | 10.3847/1538-4357/ab1b2e |
ORCIDs: | Jaisawal, Gaurava K. |
Gravitational waves Pulsars: general Pulsars: individual (PSR J1412+7922, PSR J1849-0001) Stars: neutron X-rays: stars