J/A+A/413/843 Far IR survey in the Lockman Hole (Kawara+, 2004)
ISO deep far-infrared survey in the "Lockman Hole".
III. Catalogs and source counts at 90 & 170µm.
Kawara K., Matsuhara H., Okuda H., Taniguchi Y., Sato Y., Sofue Y.,
Wakamatsu K., Oyabu S., Sanders D.B., Cowie L.L.
<Astron. Astrophys., 413, 843-859 (2004)>
=2004A&A...413..843K 2004A&A...413..843K
ADC_Keywords: Surveys ; Galaxies, IR
Mission_Name: ISO
Keywords: galaxies: evolution - galaxies: starburst - cosmology: observations -
infrared: galaxies
Abstract:
We present the catalogs and source counts for the C90 (reference
wavelength of 90um) and C160 (170um) bands, which were extracted
from our analysis of an ISO deep far-infrared survey conducted as
part of the Japan/UH ISO cosmology project. The total survey area
is ∼0.9deg2 in two fields within the Lockman Hole. The analysis
consists of source extraction using the IRAF DAOPHOT package and
simulations carried out by adding artificial sources to the maps to
estimate the detection rate, the flux bias, the positional accuracy,
and the noise.
Description:
We have carried out a far-infrared survey in the Lockman Hole (LH)
using ISOPHOT, which was an imaging photopolarimeter onboard ISO. The
survey was performed in two fields, LHEX and LHNW, between revolutions
194 and 215 (May 28 and June 19, 1996). Each field extends
approximately 44'x44'. The center of the LHEX field is at
RA=10 52 00, DE=+57 21 30 (J2000), and LHNW is at
RA=10 33 55, DE=+57 46 20 (J2000).
LHEX contains the field in which the ROSAT Deep Survey was carried out
(Hasinger et al., 1998, Cat. J/A+A/329/482).
Our ISOPHOT observations were made using the PHT22 raster mapping mode
in the C90 band (reference wavelength 90um) and the C160 band
(reference wavelength 170um).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 49 116 C90 (90µm) sources in LHEX (1EXnnn)
table5.dat 49 107 C90 (90µm) sources in LHNW (1NWnnn)
table6.dat 49 44 C160 (170µm) sources in LHEX (2EXnnn)
table7.dat 49 28 C160 (170µm) sources in LHNW (2NWnnn)
table8.dat 78 20 C160 (170µm) sources associated with
C90 (90µm) sources in LHEX
table9.dat 87 13 C160 (170µm) sources associated with
C90 (90µm) sources in LHNW
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See also:
J/A+A/329/482 : ROSAT Deep Survey in the Lockman Hole (Hasinger+, 1998)
J/A+A/393/425 : Spectral analysis of Lockman Hole (Mainieri+, 2002)
J/A+A/398/901 : VLA survey at 6 cm in the Lockman Hole (Ciliegi+, 2003)
J/AJ/125/2521 : 2MASS6x survey of the Lockman Hole (Beichman+, 2003)
J/PASJ/53/445 : ASCA Deep survey in Lockman Hole Field (Ishisaki+, 2001)
Byte-by-byte Description of file: table4.dat table5.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- Name90 Name of the source (1EXnnn or 1NWnnn)
8- 9 I2 h RAh Right ascension (J2000)
11- 12 I2 min RAm Right ascension (J2000)
14- 17 F4.1 s RAs Right ascension (J2000)
19 A1 --- DE- Declination sign (J2000)
20- 21 I2 deg DEd Declination (J2000)
23- 24 I2 arcmin DEm Declination (J2000)
26- 27 I2 arcsec DEs Declination (J2000)
30- 35 F6.1 mJy F90um Flux at 90µm
37- 40 F4.1 mJy e_F90um rms uncertainty on F90um
42- 45 F4.1 --- SNR90 Signal-to-noise ratio at 90µm
49 A1 --- Note [*] Note (1)
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Note (1): * means that no C160 observations were made for that source,
otherwise both C90 and C160 observations were performed.
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Byte-by-byte Description of file: table6.dat table7.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- Name160 Name of the source (2EXnnn or 2NWnnn)
8- 9 I2 h RAh Right ascension (J2000)
11- 12 I2 min RAm Right ascension (J2000)
14- 17 F4.1 s RAs Right ascension (J2000)
19 A1 --- DE- Declination sign (J2000)
20- 21 I2 deg DEd Declination (J2000)
23- 24 I2 arcmin DEm Declination (J2000)
26- 27 I2 arcsec DEs Declination (J2000)
30- 35 F6.1 mJy F170um Flux at 170µm
37- 40 F4.1 mJy e_F170um rms uncertainty on F170um
42- 45 F4.1 --- SNR170 Signal-to-noise ratio at 170µm
49 A1 --- Note [*] Note (1)
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Note (1): * means that no C160 observations were made for that source,
otherwise both C90 and C160 observations were performed.
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Byte-by-byte Description of file: table8.dat table9.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- Name160 C160 name
8- 13 A6 --- Name90 C90 name
14 A1 --- n_Name90 [*] Note on Name90 (1)
16- 17 I2 h RAh Right ascension (J2000)
19- 20 I2 min RAm Right ascension (J2000)
22- 25 F4.1 s RAs Right ascension (J2000)
27 A1 --- DE- Declination sign (J2000)
28- 29 I2 deg DEd Declination (J2000)
31- 32 I2 arcmin DEm Declination (J2000)
34- 35 I2 arcsec DEs Declination (J2000)
37- 42 F6.1 mJy F170um Flux at 170µm
44- 47 F4.1 mJy e_F170um rms uncertainty on F170um
49- 54 F6.1 mJy F90um ? Flux at 90µm
56- 59 F4.1 mJy e_F90um ? rms uncertainty on F90um
62- 64 F3.1 --- F160/F90 ? Flux ratio, F170um/F90um
66- 67 I2 arcsec Dist ? Distance of C160 source to the
nearest C90 source
69- 72 F4.1 --- SNR170 Signal-to-noise ratio at 170µm
74- 77 F4.1 --- SNR90 ? Signal-to-noise ratio at 90µm
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Note (1): In table9: 2NW007 is associated with an extended C90 source
that DAOPHOT does not detect. Its C90 flux that was manually
measured is 198±37mJy within a 62" radius aperture.
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History:
From electronic version of the journal
References:
Kawara et al., Paper I 1998A&A...336L...9K 1998A&A...336L...9K
Matsuhara et al., Paper II 2000A&A...361..407M 2000A&A...361..407M
(End) James Marcout, Patricia Vannier [CDS] 16-Mar-2004