Slide 1
Slide 2
X-ray Dim Isolated Neutron Star (INS)
As a class, they are interesting because:
The striking case of RX J1856.5-3754
The striking case of RX J1856.5-3754
Pulsating neutron stars:  4 so far!
Spectral variations with pulse phase
Thermal Spectra: blackbody fits
Absorption features: RBS 1223
                      (Haberl et al., 2003)
Absorption features: RX J1605.3+3249                     (van Kerkwijk  et al., 2003)
Absorption features and magnetic fields:
An hotter isolated neutron star:
   (the longest EPIC observation of a galactic source)
Slide 15
1E1207.4-5209: Lines vary in phase
Pulsed phase spectroscopy of proton cyclotron lines: theory