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Tools for analyzing large data-set and handling intensity variations of sources with INTEGRAL/SPI
KTH, School of Engineering Sciences (SCI), Physics.ORCID iD: 0000-0003-1999-2161
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2014 (English)In: Proceedings of Science, Sissa Medialab Srl , 2014Conference paper, Published paper (Refereed)
Abstract [en]

The INTEGRAL/SPI X/gamma-ray spectrometer (20 keV-8 MeV) is an instrument for which it is essential to process many exposures at the same time to increase the low signal-to-noise ratio of the weakest sources and/or low-surface brightness extended emission. The processing of several years of data simultaneously (10 years actually) with traditional methods of data reduction is ineffective and sometimes not possible at all. Thanks to the newly developed tools, processing large data-sets from SPI is possible with both a reasonable turnaround time and low memory usage. We present also techniques that we have developed to overcome difficulties related to the intensity variation of sources/background between sources between consecutive exposures.

Place, publisher, year, edition, pages
Sissa Medialab Srl , 2014.
Keywords [en]
Signal to noise ratio, INTEGRAL/SPI, Intensity variations, Large datasets, Low memory, Low signal-to-noise ratio, Surface brightness, Data handling
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-236925Scopus ID: 2-s2.0-85052874228OAI: oai:DiVA.org:kth-236925DiVA, id: diva2:1269475
Conference
10th INTEGRAL Workshop: "A Synergistic View of the High Energy Sky", Integral 2014, 15 September 2014 through 19 September 2014
Note

QC 20181210

Available from: 2018-12-10 Created: 2018-12-10 Last updated: 2018-12-10Bibliographically approved

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Chauvin, Maxime

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