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| Paper: |
New INTEGRAL Observations of η Carinae Close to Periastron |
| Volume: |
465, Four Decades of Massive Star Research - A Scientific Meeting in Honor of Anthony J. Moffat |
| Page: |
354 |
| Authors: |
Leyder, J.-C.; Walter, R.; Rauw, G. |
| Abstract: |
The soft X-ray thermal emission of η Carinae varies strongly around the periastron,
following the orbital period of 5.5 yr. We studied the hard X-ray non-thermal emission
of η Car using new INTEGRAL observations taken close to periastron.
We showed that the hard X-ray emission is very likely to be associated with η Car,
and not with any other source found within the INTEGRAL error circle.
We also showed that the 3-σ detection during the soft X-ray minimum is consistent
with a hydrogen column density that does not exceed 6×1023 cm–2. |
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