Open AccessFinal analysis of ELAIS 15‐μm observations: method, reduction and catalogue
Author(s) -
Vaccari M.,
Lari C.,
Angeretti L.,
Fadda D.,
Gruppioni C.,
Pozzi F.,
Prouton O.,
Aussel H.,
Babbedge T.,
Ciliegi P.,
Franceschini A.,
GonzalezSolares E.,
La Franca F.,
Oliver S.,
PerezFour I.,
RowanRobinson M.,
Serjeant S.,
Väisänen P.
Publication year - 2005
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2005.08773.x
Subject(s) - physics , observatory , space observatory , on board , data reduction , infrared , remote sensing , astronomy , astrophysics , statistics , geography , mathematics
We present the final analysis of the European Large Area Infrared Space Observatory ( ISO ) Survey (ELAIS) 15‐μm observations, carried out with the ISO Camera (ISOCAM) instrument on board the ISO . The data‐reduction method, known as the Lari Method, is based on a mathematical model of the behaviour of the detector and was specifically designed for the detection of faint sources in ISOCAM/ISO Photopolarimeter (ISOPHOT) data. The method is fully interactive and leads to very reliable and complete source lists. The resulting catalogue includes 1923 sources detected with signal‐to‐noise ratio of > 5 in the 0.5–100 mJy flux range and over an area of 10.85 deg 2 split into four fields, making it the largest non‐serendipitous extragalactic source catalogue obtained to date from the ISO data. This paper presents the concepts underlying the data‐reduction method together with its latest enhancements. The data‐reduction process, the production and basic properties of the resulting catalogue are discussed. The catalogue quality is assessed by means of detailed simulations, optical identifications and comparison with previous analyses.