On the extraction of extended structure from Herschel-SPIRE scanning observations in the presence of 1/f noise

Sibthorpe, Bruce, Chanial, P., Waskett, Timothy James and Griffin, Matthew Joseph ORCID: https://orcid.org/0000-0002-0033-177X 2008. On the extraction of extended structure from Herschel-SPIRE scanning observations in the presence of 1/f noise. Monthly Notices of the Royal Astronomical Society 388 (4) , pp. 1787-1791. 10.1111/j.1365-2966.2008.13517.x

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Abstract

We present results from a study of the impact of uncorrelated 1/f noise on the extraction of spatial structure, on a range of scales, from sky mapping observations made using the Herschel-SPIRE (the spectral and photometric imaging receiver) photometer in the scan-map mode. These studies were carried out using a detailed instrument simulator, and the output reduced using the map-making algorithm to be implemented in the SPIRE data pipeline. The influence of source size scale, telescope-scanning rate and 1/f noise knee frequency is investigated, and operational bounds to the expected losses are presented, using the case of zero 1/f (white) noise as a benchmark. Both cross-linked and non-cross-linked observing options are studied. The results presented here represent the best current estimate of the sensitivity of the SPIRE photometer to emission on arbitrary scales. The data presented are general and scalable to any SPIRE observation made using the scanning mode.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Uncontrolled Keywords:	instrumentation: miscellaneous; methods: observational; methods: statistical; space vehicles: instruments; infrared: general; submillimetre
Additional Information:	Pdf uploaded in accordance with publisher's policy at http://www.sherpa.ac.uk/romeo/issn/0035-8711/ (accessed 20/02/2014).
Publisher:	Royal Astronomical Society
ISSN:	0035-8711
Date of First Compliant Deposit:	30 March 2016
Last Modified:	20 May 2023 18:42
URI:	https://orca.cardiff.ac.uk/id/eprint/11038

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