SIMBAD references

2019ApJ...887L..27G - Astrophys. J., 887, L27-L27 (2019/December-2)

NICER X-ray observations of seven nearby rotation-powered millisecond pulsars.

GUILLOT S., KERR M., RAY P.S., BOGDANOV S., RANSOM S., DENEVA J.S., ARZOUMANIAN Z., BULT P., CHAKRABARTY D., GENDREAU K.C., HO W.C.G., JAISAWAL G.K., MALACARIA C., MILLER M.C., STROHMAYER T.E., WOLFF M.T., WOOD K.S., WEBB N.A., GUILLEMOT L., COGNARD I. and THEUREAU G.

Abstract (from CDS):

The Neutron star Interior Composition Explorer observed several rotation-powered millisecond pulsars (MSPs) to search for or confirm the presence of X-ray pulsations. When broad and sine-like, these pulsations may indicate thermal emission from hot polar caps at the magnetic poles on the neutron star surface. We report confident detections (>=4.7σ after background filtering) of X-ray pulsations for five of the seven pulsars in our target sample: PSR J0614-3329, PSR J0636+5129, PSR J0751+1807, PSR J1012+5307, and PSR J2241-5236, while PSR J1552+5437 and PSR J1744-1134 remain undetected. Of those, only PSR J0751+1807 and PSR J1012+5307 had pulsations previously detected at the 1.7σ and almost 3σ confidence levels, respectively, in XMM-Newton data. All detected sources exhibit broad sine-like pulses, which are indicative of surface thermal radiation. As such, these MSPs are promising targets for future X-ray observations aimed at constraining the neutron star mass-radius relation and the dense matter equation of state using detailed pulse profile modeling. Furthermore, we find that three of the detected MSPs exhibit a significant phase offset between their X-ray and radio pulses.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): Neutron stars - Rotation powered pulsars - Millisecond pulsars - X-ray identification

Simbad objects: 25

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2019ApJ...887L..27G and select 'bookmark this link' or equivalent in the popup menu


2021.04.12-01:59:21

© Université de Strasbourg/CNRS

    • Contact