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Paper: |
Correcting Transients in Unchopped PACS/Herschel Spectroscopy |
Volume: |
461, Astronomical Data Analysis Software and Systems XXI |
Page: |
781 |
Authors: |
Fadda, D.; Jacobson, J. D. |
Abstract: |
We present a technique to correct long-term transients in the signal
from unchopped spectroscopy with the PACS instrument onboard the
Herschel Space Observatory. This kind of transients affects the
response of the detector after every big variation of the incident
flux and lasts up to 6 minutes. The effect is particularly pronounced
in the case of the red array whose response can vary up to 20%, while
is less important in the case of the blue array. Correcting these
transients is critical especially in the case of short observations
since they can affect a large fraction of the observation. A module to
correct long-term transients has been developed in Jython and it is
part of the data reduction software for Herschel, HIPE, since version
7.0. |
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