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Constraining the neutron star mass-radius relation and dense matter equation of state with NICER. I. The millisecond pulsar X-ray data set

Constraining the neutron star mass-radius relation and dense matter equation of state with NICER. I. The millisecond pulsar X-ray data set
Constraining the neutron star mass-radius relation and dense matter equation of state with NICER. I. The millisecond pulsar X-ray data set
We present the set of deep Neutron Star Interior Composition Explorer (NICER) X-ray timing observations of the nearby rotation-powered millisecond pulsars PSRs J0437−4715, J0030+0451, J1231−1411, and J2124−3358, selected as targets for constraining the mass–radius relation of neutron stars and the dense matter equation of state (EoS) via modeling of their pulsed thermal X-ray emission. We describe the instrument, observations, and data processing/reduction procedures, as well as the series of investigations conducted to ensure that the properties of the data sets are suitable for parameter estimation analyses to produce reliable constraints on the neutron star mass–radius relation and the dense matter EoS. We find that the long-term timing and flux behavior and the Fourier-domain properties of the event data do not exhibit any anomalies that could adversely affect the intended measurements. From phase-selected spectroscopy, we find that emission from the individual pulse peaks is well described by a single-temperature hydrogen atmosphere spectrum, with the exception of PSR J0437−4715, for which multiple temperatures are required.
2041-8205
Bogdanov, Slavko
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Guillot, Sebastien
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Ray, Paul S.
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Wolff, Michael T.
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Chakrabarty, Deepto
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Ho, Wynn C.G.
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Kerr, Matthew
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Lamb, Frederick K.
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Lommen, Andrea
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Ludlam, Renee M.
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Milburn, Reilly
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Montano, Sergio
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Coleman Miller, M.
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Baubock, Michi
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Ozel, Feryal
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Psaltis, Dimitrios
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Remillard, Ronald A.
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Riley, Thomas E.
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Steiner, James F.
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Strohmayer, Tod E.
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Watts, Anna L.
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Wood, Kent S.
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Zeldes, Jesse
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Enoto, Teruaki
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Okajima, Takashi
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Kellogg, James
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Baker, Charles
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Markwardt, Craig
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Arzoumanian, Zaven
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Gendreau, Keith C.
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Bogdanov, Slavko
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Guillot, Sebastien
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Ray, Paul S.
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Wolff, Michael T.
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Chakrabarty, Deepto
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Ho, Wynn C.G.
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Kerr, Matthew
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Lamb, Frederick K.
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Lommen, Andrea
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Ludlam, Renee M.
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Milburn, Reilly
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Montano, Sergio
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Coleman Miller, M.
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Baubock, Michi
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Ozel, Feryal
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Psaltis, Dimitrios
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Remillard, Ronald A.
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Riley, Thomas E.
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Steiner, James F.
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Strohmayer, Tod E.
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Watts, Anna L.
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Wood, Kent S.
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Zeldes, Jesse
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Enoto, Teruaki
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Okajima, Takashi
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Kellogg, James
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Baker, Charles
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Markwardt, Craig
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Arzoumanian, Zaven
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Gendreau, Keith C.
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Bogdanov, Slavko, Guillot, Sebastien, Ray, Paul S., Wolff, Michael T., Chakrabarty, Deepto, Ho, Wynn C.G., Kerr, Matthew, Lamb, Frederick K., Lommen, Andrea, Ludlam, Renee M., Milburn, Reilly, Montano, Sergio, Coleman Miller, M., Baubock, Michi, Ozel, Feryal, Psaltis, Dimitrios, Remillard, Ronald A., Riley, Thomas E., Steiner, James F., Strohmayer, Tod E., Watts, Anna L., Wood, Kent S., Zeldes, Jesse, Enoto, Teruaki, Okajima, Takashi, Kellogg, James, Baker, Charles, Markwardt, Craig, Arzoumanian, Zaven and Gendreau, Keith C. (2019) Constraining the neutron star mass-radius relation and dense matter equation of state with NICER. I. The millisecond pulsar X-ray data set. Astrophysical Journal Letters, 887 (1), [L25]. (doi:10.3847/2041-8213/ab53eb).

Record type: Article

Abstract

We present the set of deep Neutron Star Interior Composition Explorer (NICER) X-ray timing observations of the nearby rotation-powered millisecond pulsars PSRs J0437−4715, J0030+0451, J1231−1411, and J2124−3358, selected as targets for constraining the mass–radius relation of neutron stars and the dense matter equation of state (EoS) via modeling of their pulsed thermal X-ray emission. We describe the instrument, observations, and data processing/reduction procedures, as well as the series of investigations conducted to ensure that the properties of the data sets are suitable for parameter estimation analyses to produce reliable constraints on the neutron star mass–radius relation and the dense matter EoS. We find that the long-term timing and flux behavior and the Fourier-domain properties of the event data do not exhibit any anomalies that could adversely affect the intended measurements. From phase-selected spectroscopy, we find that emission from the individual pulse peaks is well described by a single-temperature hydrogen atmosphere spectrum, with the exception of PSR J0437−4715, for which multiple temperatures are required.

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1912.05706 - Accepted Manuscript
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Accepted/In Press date: 18 October 2019
Published date: 12 December 2019

Identifiers

Local EPrints ID: 436758
URI: http://eprints.soton.ac.uk/id/eprint/436758
ISSN: 2041-8205
PURE UUID: eced0b2a-ceaf-47ae-a7d5-c4f5d05d65e2
ORCID for Wynn C.G. Ho: ORCID iD orcid.org/0000-0002-6089-6836

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Date deposited: 03 Jan 2020 17:30
Last modified: 05 Feb 2020 01:30

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Contributors

Author: Slavko Bogdanov
Author: Sebastien Guillot
Author: Paul S. Ray
Author: Michael T. Wolff
Author: Deepto Chakrabarty
Author: Wynn C.G. Ho ORCID iD
Author: Matthew Kerr
Author: Frederick K. Lamb
Author: Andrea Lommen
Author: Renee M. Ludlam
Author: Reilly Milburn
Author: Sergio Montano
Author: M. Coleman Miller
Author: Michi Baubock
Author: Feryal Ozel
Author: Dimitrios Psaltis
Author: Ronald A. Remillard
Author: Thomas E. Riley
Author: James F. Steiner
Author: Tod E. Strohmayer
Author: Anna L. Watts
Author: Kent S. Wood
Author: Jesse Zeldes
Author: Teruaki Enoto
Author: Takashi Okajima
Author: James Kellogg
Author: Charles Baker
Author: Craig Markwardt
Author: Zaven Arzoumanian
Author: Keith C. Gendreau

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