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Properties of the isolated neutron star RX J185635-3754

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Title: Properties of the isolated neutron star RX J185635-3754
Authors: Walter, F.M.1 fwalter@astro.sunysb.edu, Pons, J.A.2, Burwitz, V.3, Lattimer, J.M.1, Lloyd, D.4, Wolk, S.J.4, Prakash, M.1, Neuhäuser, R.3
Source: Advances in Space Research. Feb2004, Vol. 33 Issue 4, p513. 5p.
Subjects: Neutron stars, Properties of matter, Isolationism, X-ray astronomy
Abstract: Despite improved observational capabilities, the surface properties of neutron stars remain uncertain. In principle, multiwavelength spectra can reveal their compositions and angular diameters and constrain the interior equation of state. The Chandra LETG spectrum of the brightest isolated neutron star is a featureless continuum. The X-ray blackbody fit underpredicts the observed optical fluxes, but the spectral energy distribution can be fit with a two blackbody model. No pulsations are seen. We discuss model atmosphere fits. We conclude there is no need to invoke exotic physics: RX J185635-3754 is likely a 0.5 × 106 years old pulsar. [Copyright &y& Elsevier]
Copyright of Advances in Space Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubType: Academic Journal
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  Data: Properties of the isolated neutron star RX J185635-3754
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  Data: <searchLink fieldCode="JN" term="%22Advances+in+Space+Research%22">Advances in Space Research</searchLink>. Feb2004, Vol. 33 Issue 4, p513. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Neutron+stars%22">Neutron stars</searchLink><br /><searchLink fieldCode="DE" term="%22Properties+of+matter%22">Properties of matter</searchLink><br /><searchLink fieldCode="DE" term="%22Isolationism%22">Isolationism</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+astronomy%22">X-ray astronomy</searchLink>
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  Data: Despite improved observational capabilities, the surface properties of neutron stars remain uncertain. In principle, multiwavelength spectra can reveal their compositions and angular diameters and constrain the interior equation of state. The Chandra LETG spectrum of the brightest isolated neutron star is a featureless continuum. The X-ray blackbody fit underpredicts the observed optical fluxes, but the spectral energy distribution can be fit with a two blackbody model. No pulsations are seen. We discuss model atmosphere fits. We conclude there is no need to invoke exotic physics: RX J185635-3754 is likely a 0.5 × 106 years old pulsar. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Advances in Space Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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