Constraints of the compactness of the isolated neutron stars via -ray phase-resolved spectroscopy
2
Constraints of the compactness of the isolated neutron stars via -ray phase-resolved spectroscopy Valeri Hambaryan 1 , Valery Suleimanov 2 , Ralph Neuhäuser 1 & Klaus Werner 2 1 Astrophysical Institut , University of Jena, Germany 2 Institut for Astronomy & Astrophyscs , University of Tuebingen, Germany Thermally emitting isolated neutron stars P-P_dot diagram Distribution in Galaxy 1 Astrophysical Institut , University of Jena, Germany RBS 1223=1RXS J130848.6+212708 • High galactic latitude: l=338.7457 b=+83.0813 • Highest pulsed fraction among M7: Double humped light curve Strongest broad absorption feature EW = 150 eV E line = 300 eV ] keV 0 . 2 2 . 0 [ % 18 min max min max F F F F PF
description
Constraints of the compactness of the isolated neutron stars via -ray phase-resolved spectroscopy. Valeri Hambaryan 1 , Valery Suleimanov 2 , Ralph Neuhäuser 1 & Klaus Werner 2. 1 Astrophysical Institut , University of Jena, Germany - PowerPoint PPT Presentation
Transcript of Constraints of the compactness of the isolated neutron stars via -ray phase-resolved spectroscopy
Constraints of the compactness of the isolated neutron stars via -ray phase-resolved spectroscopy
Valeri Hambaryan 1, Valery Suleimanov 2, Ralph Neuhäuser 1 & Klaus Werner 2
1Astrophysical Institut , University of Jena, Germany2Institut for Astronomy & Astrophyscs , University of Tuebingen, Germany
Thermally emitting isolated neutron stars P-P_dot diagram Distribution in Galaxy
1Astrophysical Institut , University of Jena, Germany RBS 1223=1RXS J130848.6+212708• High galactic latitude: l=338.7457 b=+83.0813• Highest pulsed fraction among M7: Double humped light curve Strongest broad absorption feature
]keV0.22.0[%18minmax
minmax FFFFPF
EW = 150 eVE line = 300 eV
Observational data: Spectrum vs LC
Fe cyclotron energy
EC
Condensed Fe surface spectra approximations
Partially ionized H atmospheres above condenced Fe surfaces
Model:
![Neutron cross section covariances in the resolved ... · Neutron cross section covariances in the resolved resonance region ... [1, 2], data adjustment for the Global Nuclear Energy](https://static.fdocuments.net/doc/165x107/606f7233f1f6fd3d42082610/neutron-cross-section-covariances-in-the-resolved-neutron-cross-section-covariances.jpg)
