Show simple item record Marchili, N. Hopwood, R. Fulton, T. Polehampton, E. T. Valtchanov, I. Zaretski, J. Naylor, David A. Griffin, M. J. Imhof, P. Lim, T. Lu, N. Makiwa, G. Pearson, C. Spencer, L. 2019-12-17T00:02:45Z 2019-12-17T00:02:45Z 2017
dc.identifier.citation Marchili, N., Hopwood, R., Fulton, T., Polehampton, E. T., Valchanov, I., Zaretski, J., ...Spencer, L. (2017). Calibration of Herschel SPIRE FTS observations at different spectral resolution. Monthly Notices of the Royal Astronomical Society, 464(3), 3331-3342. doi:10.1093/mnras/stw2600 en_US
dc.description Sherpa Romeo green journal. Permission to archive final published version. en_US
dc.description.abstract The SPIRE Fourier Transform Spectrometer on-board the Herschel Space Observatory had two standard spectral resolution modes for science observations: high resolution (HR) and low resolution (LR), which could also be performed in sequence (H+LR). A comparison of the HR and LR resolution spectra taken in this sequential mode revealed a systematic discrepancy in the continuum level. Analysing the data at different stages during standard pipeline processing demonstrates that the telescope and instrument emission affect HR and H+LR observations in a systematically different way. The origin of this difference is found to lie in the variation of both the telescope and instrument response functions, while it is triggered by fast variation of the instrument temperatures. As it is not possible to trace the evolution of the response functions using housekeeping data from the instrument subsystems, the calibration cannot be corrected analytically. Therefore, an empirical correction for LR spectra has been developed, which removes the systematic noise introduced by the variation of the response functions. en_US
dc.language.iso en_US en_US
dc.publisher Oxford University Press en_US
dc.subject Instrumentation en_US
dc.subject Spectrographs en_US
dc.subject Data analysis - Space vehicles en_US
dc.subject Instruments - Techniques en_US
dc.subject Spectroscopic en_US
dc.subject Herschel Spectral and Photometric REceiver
dc.subject Fourier Transform Spectrometer
dc.subject SPIRE
dc.subject.lcsh Fourier transform spectroscopy
dc.subject.lcsh Herschel Space Observatory (Spacecraft)
dc.subject.lcsh Calibration
dc.title Calibration of Herschel SPIRE FTS observations at different spectral resolutions en_US
dc.type Article en_US
dc.publisher.faculty Arts and Science en_US
dc.publisher.department Department of Physics and Astronomy en_US
dc.description.peer-review Yes en_US
dc.publisher.institution IAPS-INAF en_US
dc.publisher.institution Imperial College London en_US
dc.publisher.institution University of Lethbridge en_US
dc.publisher.institution Blue Sky Spectroscopy en_US
dc.publisher.institution Rutherford Appleton Laboratory en_US
dc.publisher.institution Herschel Science Centre en_US
dc.publisher.institution Cardiff University en_US
dc.publisher.institution Chinese Academy of Sciences en_US
dc.publisher.institution The Open University en_US
dc.publisher.institution University of Oxford en_US
dc.publisher.url en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record