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The European Large Area Iso Survey: 90 micron number counts.

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posted on 2023-06-08, 05:29 authored by Philippe Héraudeau, Carlos del Burgos, Manfred Stickel, Andreas Efstathiou, Michael Rowan-Robinson, Csaba Kiss, Petér Ábrahám, Seb OliverSeb Oliver, Ulrich Klaas
The European Large Area ISO Survey (ELAIS) was the largest single Open Time project conducted by ISO, mapping an area of 12 square degrees at 15µm with ISO-CAM and at 90µ with ISOPHOT. We first present the data analysis of the 90 µm survey. We show comparisons with model prediction for standard stars and with COBE/DIRBE for surface brightnesses of individual ELAIS fields and with the IRAS FSC catalog for 35 sources in common. The large number of rasters necessary to cover the wide ELAIS areas allows to compute a relative uncertainty for the calibration based on the FCS of typically 7%. From the comparison with standard stars model predictions, the absolute calibration is shown to be better than 15%. The survey is 1.5 order of magnitude deeper than the IRAS 100µ m survey and is expected to provide constraints on the formation and evolution of galaxies. Finally, we present 90 µm number counts from a reliable subset of the detected sources. ELAIS number counts are compared to the evolutionnary models of Guiderdoni (1998) and Rowan-Robinson (2001).

History

Publication status

  • Published

Publisher

Published as ESA Publications Series, ESA SP-511. European Space Agency

Volume

551

Page range

325

Presentation Type

  • paper

Event name

Exploiting the ISO Data Archive. Infrared Astronomy in the Internet Age

Event location

held in Siguenza, Spain.

Event type

conference

Event date

24-27 June, 2002.

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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