J/A+A/475/791 12um ISOCAM survey of the ESO-Sculptor field (Seymour+, 2007)
A 12 µm ISOCAM survey of the ESO-Sculptor field.
Seymour N., Rocca-Volmerange B., de Lapparent V.
<Astron. Astrophys. 475, 791 (2007)>
=2007A&A...475..791S 2007A&A...475..791S
ADC_Keywords: Surveys ; Galaxies, IR ; Photometry, infrared
Keywords: infrared: galaxies - Galaxy: evolution - methods: data analysis -
catalogs - galaxies: photometry
Abstract:
We present a detailed reduction of a mid-infrared 12um (LW10 filter)
ISOCAM open time observation performed on the ESO-Sculptor Survey
field (Arnouts et al., 1997A&AS..124..163A 1997A&AS..124..163A). A complete catalogue of
142 sources (120 galaxies and 22 stars), detected with high
significance (equivalent to 5σ), is presented above an
integrated flux density of 0.31mJy. Star/galaxy separation is
performed by a detailed study of colour-colour diagrams. The catalogue
is complete to 1mJy and, below this flux density, the incompleteness
is corrected using two independent methods. The first method uses
stars and the second uses optical counterparts of the ISOCAM galaxies;
these methods yield consistent results. We also apply an empirical
flux density calibration using stars in the field. For each star, the
12um flux density is derived by fitting optical colours from a
multi-band χ2 to stellar templates (BaSel-2.0) and using
empirical optical-IR colour-colour relations. This article is a
companion analysis to our 2007 paper (Rocca-Volmerange et al.
2007A&A...475..801R 2007A&A...475..801R) where the 12um faint galaxy counts are presented
and analysed per galaxy type with the evolutionary code PEGASE.3.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 118 142 The complete 12um source catalogue (table 4)
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See also:
I/284 : The USNO-B1.0 Catalog (Monet+ 2003)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
B/denis : The DENIS database (DENIS Consortium, 2005)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Sequential number
5- 7 A3 --- --- [IES]
9- 22 A14 --- IES IES name (JHHMMSS-DDMMSS)
24- 25 I2 h RAh Right ascension (J2000)
27- 28 I2 min RAm Right ascension (J2000)
30- 34 F5.2 s RAs Right ascension (J2000)
36 A1 --- DE- Declination sign (J2000)
37- 38 I2 deg DEd Declination sign (J2000)
40- 41 I2 arcmin DEm Declination sign (J2000)
43- 47 F5.2 arcsec DEs Declination sign (J2000)
49 A1 --- S/G [S/G] Classification (S: star, G: galaxy)
51- 54 A4 --- r_Bmag Source of the BVR magnitudes (1)
56- 60 F5.2 mag BmagU ? USNO B magnitude
62- 66 F5.2 mag Bmag ? ESS Johnson B magnitude (2)
68- 72 F5.2 mag Vmag ? ESS Johnson V magnitude (2)
74- 78 F5.2 mag RmagU ? USNO R magnitude
80- 84 F5.2 mag Rcmag ? ESS Cousins R magnitude (2)
86- 90 F5.2 mag imag ? DENIS i magnitude
92- 96 F5.2 mag Jmag ? 2MASS J magnitude
98-102 F5.2 mag Hmag ? 2MASS H magnitude
104-108 F5.2 mag Ksmag ? 2MASS Ks magnitude
110-113 F4.2 mJy S12um Flux density at 12um
115-118 F4.2 mJy e_S12um rms uncertainty on 12um
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Note (1): Sources of the BVR magnitudes as follows:
ESS = ESO-Sculptor Survey, Arnouts et al., 1997A&AS..124..163A 1997A&AS..124..163A
USNO = USNO survey (Cat. I/284)
OFFF = off ESS area and not detected by USNO
SPIK = hidden by a diffraction spike in ESS and not detected by USNO
SATD = saturated in ESS and not detected by USNO
Note (2): ESS = ESO-Sculptor faint galaxy redshift survey (Arnouts et al.,
1997A&AS..124..163A 1997A&AS..124..163A)
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History:
* 28-Feb-2008: An error not spotted in time before publication incorrectly
gives the lowest flux detected as 0.24mJy instead of the correct value
of 0.31mJy (this was corrected on 28-Feb-2008 in this file).
Acknowledgements:
Brigitte Rocca, rocca(at)iap.fr
(End) Patricia Vannier [CDS] 16-Nov-2007