2019/02/04 by Slavko Bogdanov, Wynn C. G. Ho, Teruaki Enoto +7 · 19 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Ephemeris #Gamma-ray bursts and supernovae #Gravitational wave #Interferometry #Millisecond pulsar #Neutron star #Observatory #Pulsar #Pulsars and Gravitational Waves Research #Spectral line #astro-ph.HE
paper · pdf · doi:10.3847/1538-4357/ab1b2e
published in The Astrophysical Journal 877(2), 69 (IOP Publishing) · 12 pages, 4 figures; submitted to the Astrophysical Journal
arxiv created 2019/02/04 · openalex created_date 2019/02/21 · openalex publication_date 2019/05/28 · arxiv updated 2019/06/05 · openalex updated_date 2026/08/05
Abstract 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.