Long-term variability in the X-ray emission of RX J0720.4-3125
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| Publication date | 2004 |
| Journal | Astronomy & Astrophysics |
| Volume | Issue number | 415 |
| Pages (from-to) | L31-L34 |
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| Abstract | We detect a gradual, long-term change in the shape of the X-ray spectrum of the isolated neutron star RX J0720.4-3125, such that the spectrum of the source can no longer be described as a blackbody spectrum. The change is accompanied by an energy-dependent change in the pulse profile. If the X-ray emission is influenced by the magnetic field of the pulsar, these changes in spectral shape may point to precession of the neutron star. |
| Document type | Article |
| Published at | https://doi.org/10.1051/0004-6361:20040009 |
| Published at | http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2004A%26A...415L..31D&db_key=AST&high=3ed1d2904213145 |
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