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Title:
TAPAS, a VO archive at the IRAM 30-m telescope
Authors:
Leon, Stephane; Espigares, Victor; Ruíz, José Enrique; Verdes-Montenegro, Lourdes; Mauersberger, Rainer; Brunswig, Walter; Kramer, Carsten; Santander-Vela, Juan de Dios; Wiesemeyer, Helmut
Affiliation:
AA(Joint ALMA Observatory/ESO, Santiago, Vitacura, Chile; Instituto de Radioastronomía Milimétrica (IRAM), Granada, Spain), AB(Instituto de Radioastronomía Milimétrica (IRAM), Granada, Spain), AC(Instituto de Astrofísica de Andalucía, CSIC, Granada, Spain), AD(Instituto de Astrofísica de Andalucía, CSIC, Granada, Spain), AE(Joint ALMA Observatory/ESO, Santiago, Vitacura, Chile; Instituto de Radioastronomía Milimétrica (IRAM), Granada, Spain), AF(Instituto de Radioastronomía Milimétrica (IRAM), Granada, Spain), AG(Instituto de Radioastronomía Milimétrica (IRAM), Granada, Spain), AH(Instituto de Astrofísica de Andalucía, CSIC, Granada, Spain), AI(Instituto de Radioastronomía Milimétrica (IRAM), Granada, Spain; Max-Planck-Institute for Radio Astronomy, Bonn, Germany)
Publication:
Experimental Astronomy, Volume 34, Issue 1, pp.65-88 (ExA Homepage)
Publication Date:
07/2012
Origin:
SPRINGER
Keywords:
Astronomical database, Virtual observatory, Radioastronomy
Abstract Copyright:
(c) 2012: Springer Science+Business Media B.V.
DOI:
10.1007/s10686-012-9299-9
Bibliographic Code:
2012ExA....34...65L

Abstract

Astronomical observatories are today generating increasingly large volumes of data. For an efficient use of them, databases have been built following the standards proposed by the International Virtual Observatory Alliance (IVOA), providing a common protocol to query them and make them interoperable. The IRAM 30-m radio telescope, located in Sierra Nevada (Granada, Spain) is a millimeter wavelength telescope with a constantly renewed, extensive choice of instruments, and capable of covering the frequency range between 80 and 370 GHz. It is continuously producing a large amount of data thanks to the more than 200 scientific projects observed each year. The TAPAS archive at the IRAM 30-m telescope is aimed to provide public access to the headers describing the observations performed with the telescope, according to a defined data policy, making as well the technical data available to the IRAM staff members. A special emphasis has been made to make it Virtual Observatory (VO) compliant, and to offer a VO compliant web interface allowing to make the information available to the scientific community. TAPAS is built using the Django Python framework on top of a relational MySQL database, and is fully integrated with the telescope control system. The TAPAS data model (DM) is based on the Radio Astronomical DAta Model for Single dish radio telescopes (RADAMS), to allow for easy integration into the VO infrastructure. A metadata modeling layer is used by the data-filler to allow an implementation free from assumptions about the control system and the underlying database. TAPAS and its public web interface (<ExternalRef> <RefSource>http://tapas.iram.es</RefSource> <RefTarget Address="http://tapas.iram.es" TargetType="URL"/> </ExternalRef>) provides a scalable system that can evolve with new instruments and observing modes. A meta description of the DM has been introduced in TAPAS in order to both avoid undesired coupling between the code and the DM and to provide a better management of the archive. A subset of the header data stored in TAPAS will be made available at the CDS.
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