Calibration of the Herschel SPIRE Fourier Transform Spectrometer

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dc.contributor.authorSwinyard, B. M.
dc.contributor.authorPolehampton, E. T.
dc.contributor.authorHopwood, R.
dc.contributor.authorValtchanov, I.
dc.contributor.authorLu, N.
dc.contributor.authorFulton, T.
dc.contributor.authorBenielli, D.
dc.contributor.authorImhof, P.
dc.contributor.authorMarchili, N.
dc.contributor.authorBaluteau, J.-P.
dc.contributor.authorBendo, G. J.
dc.contributor.authorFerlet, M.
dc.contributor.authorGriffin, M. J.
dc.contributor.authorLim, T. L.
dc.contributor.authorMakiwa, G.
dc.contributor.authorNaylor, David A.
dc.contributor.authorOrton, G. S.
dc.contributor.authorPapageorgiou, A.
dc.contributor.authorPearson, C. P.
dc.contributor.authorSchulz, B.
dc.contributor.authorSidher, S. D.
dc.contributor.authorSpencer, L. D.
dc.contributor.authorvan der Wiel, M. H. D.
dc.contributor.authorWu, R.
dc.date.accessioned2019-12-16T23:41:51Z
dc.date.available2019-12-16T23:41:51Z
dc.date.issued2014
dc.descriptionSherpa Romeo green journal. Permission to archive final published version.en_US
dc.description.abstractThe Herschel Spectral and Photometric REceiver (SPIRE) instrument consists of an imaging photometric camera and an imaging Fourier Transform Spectrometer (FTS), both operating over a frequency range of∼450–1550GHz. In this paper, we briefly review the FTS design, operation, and data reduction, and describe in detail the approach taken to relative calibration (removal of instrument signatures) and absolute calibration against standard astronomical sources. The calibration scheme assumes a spatially extended source and uses the Herschel telescopeasprimarycalibrator.Conversionfromextendedtopoint-sourcecalibrationiscarried out using observations of the planet Uranus. The model of the telescope emission is shown to beaccuratetowithin6percent andrepeatable tobetterthan0.06percent and,bycomparison with models of Mars and Neptune, the Uranus model is shown to be accurate to within 3 per cent. Multiple observations of a number of point-like sources show that the repeatability of the calibration is better than 1 per cent, if the effects of the satellite absolute pointing error (APE) are corrected. The satellite APE leads to a decrement in the derived flux, which can be up to∼10 per cent (1 σ) at the high-frequency end of the SPIRE range in the first part of the mission, and∼4 per cent after Herschel operational day 1011. The lower frequency range of the SPIRE band is unaffected by this pointing error due to the larger beam size. Overall, for well-pointed, point-like sources, the absolute flux calibration is better than 6 per cent, and for extended sources where mapping is required it is better than 7 per cent.en_US
dc.description.peer-reviewYesen_US
dc.identifier.citationSwinyard, B. M., Polehampton, E. T., Hopwood, R., Valtchanov, I., Lu, N., Fulton, T., ... Wu, R. (2014). Calibration of the Herschel SPIRE Fourier Transform Spectrometer. Monthly Notices of the Royal Astronomical Society, 440(4), 3658-3674. doi:10.1093/mnras/stu409en_US
dc.identifier.urihttps://hdl.handle.net/10133/5633
dc.language.isoen_USen_US
dc.publisherOxford University Pressen_US
dc.publisher.departmentDepartment of Physics and Astronomyen_US
dc.publisher.facultyArts and Scienceen_US
dc.publisher.institutionUniversity College Londonen_US
dc.publisher.institutionRutherford Appleton Laboratoryen_US
dc.publisher.institutionUniversity of Lethbridgeen_US
dc.publisher.institutionImperial College Londonen_US
dc.publisher.institutionEuropean Space Astronomy Centre (Spain)en_US
dc.publisher.institutionCalifornia Institute of Technologyen_US
dc.publisher.institutionBlue Sky Spectroscopyen_US
dc.publisher.institutionUniversité d'Aix-Marseilleen_US
dc.publisher.institutionCNRSen_US
dc.publisher.institutionUniversità di Padovaen_US
dc.publisher.institutionUniversity of Manchesteren_US
dc.publisher.institutionCardiff Universityen_US
dc.publisher.institutionThe Open Universityen_US
dc.publisher.urlhttps://doi.org/10.1093/mnras/stu409en_US
dc.subjectInstrumentationen_US
dc.subjectSpectrographsen_US
dc.subjectSpace vehiclesen_US
dc.subjectInstruments - Techniquesen_US
dc.subjectSpectroscopicen_US
dc.subjectHerschel Spectral and Photometric REceiver
dc.subjectSPIRE
dc.subjectFourier Transform Spectrometer
dc.subject.lcshFourier transform spectroscopy
dc.subject.lcshCalibration
dc.titleCalibration of the Herschel SPIRE Fourier Transform Spectrometeren_US
dc.typeArticleen_US
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