EUV/soft x-ray spectra for low B neutron stars

Conference · Tue May 23 00:00:00 EDT 1995

OSTI ID:100273

Romani, R W; Rajagopal, M ^[1]; Rogers, F J; Iglesias, C A ^[2]

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1. Stanford Univ., CA (United States). Dept. of Physics
2. Lawrence Livermore National Lab., CA (United States)

Recent ROSAT and EUVE detections of spin-powered neutron stars suggest that many emit ``thermal`` radiation, peaking in the EUV/soft X-ray band. These data constrain the neutron stars` thermal history, but interpretation requires comparison with model atmosphere computations, since emergent spectra depend strongly on the surface composition and magnetic field. As recent opacity computations show substantial change to absorption cross sections at neutron star photospheric conditions, we report here on new model atmosphere computations employing such data. The results are compared with magnetic atmosphere models and applied to PSR J0437-4715, a low field neutron star.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 100273
• Report Number(s): UCRL-JC-120865; CONF-9503167-3; ON: DE95016614
• Resource Relation: Conference: 1995 International Astronomical Union (IAU) colloquium #152 on astrophysics in the extreme ultraviolet, Berkeley, CA (United States), 27-30 Mar 1995; Other Information: PBD: 23 May 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
NEUTRON STARS
X-RAY SPECTRA
EXTREME ULTRAVIOLET RADIATION
THERMAL RADIATION
MAGNETIC FIELDS
IRON