J/PASJ/71/13 Herschel-PACS North Ecliptic Pole Survey (Pearson+, 2019)
The Herschel-PACS North Ecliptic Pole Survey.
Pearson C., Barrufet de Soto L., Campos Varillas M del C., Serjeant S.,
Clements D.L., Goto T., Im M., Jeong W.S., Kim S.J., Matsuhara H.,
Sedgewick C., Valtchanov I.
<Publ. Astron. Soc. Jap. 71, 13 (2019)>
=2019PASJ...71...13P 2019PASJ...71...13P (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Galaxies, photometry ; Photometry, infrared
Keywords: surveys - infrared: galaxies - catalogs - galaxies: evolution
Abstract:
A detailed analysis of Herschel-PACS observations at the North
Ecliptic Pole has been made. High quality maps, covering an area of
0.44 square degrees, are produced and then used to derive new
candidate source lists. A rigorous quality control pipeline has been
used to create final legacy catalogues in the PACS Green 100um
and Red 160um bands, containing 1385 and 630 sources respectively.
These catalogues reach to more than twice the depth of the current
archival Herschel/PACS Point Source Catalogue detecting 401 and 270
more sources in the short and long wavelength bands respectively.
These counts have been used to construct galaxy source counts that
extend down to flux densities of 6mJy and 19mJy (50% completeness) in
the Green 100 micron and Red 160 micron bands respectively. These
source counts are consistent with previously published PACS number
counts in other fields across the sky. The source counts have been
compared with galaxy evolution models identifying a population of
luminous infrared galaxies as responsible for the bulk of the galaxy
evolution over the flux range (5-100mJy) spanned by the observed
counts, contributing approximate fractions of 50% and 60% to the
cosmic infrared background (CIRB) at 100um and 160um respectively.
Description:
The Herschel PACS survey at the North Ecliptic Pole within the AKARI
NEP Deep Field. was part of an Open Time 2 programme (OT2sserje012).
The PACS observations were made as a set of 10 nominal and orthogonal
direction scan-map AOR (Astronomy Observation Request) pairs of
40-arcmin scan leg length and 20-arcsec/s scan speed. Observations
were made simultaneously in the Green (100um) and Red (160um) bands.
Each individual AOR contained four repetitions of the map resulting in
estimated HSpot 3σ instrumental noise sensitivities of 4.59mJy
and 8.73mJy at 100-microns and 160-microns respectively. The PACS
observations were taken on consecutive Herschel Operational Days,
1440-1443 (22-26 April 2013, only 3 days before Herschel's "End of
Life" on 29th April 2013). The PACS observations cover approximately
0.44 square degrees overlapping with the majority of the AKARI
NEP-Deep survey area. Source extraction from the PACS maps is made
using the SUSSEXtractor task within the Herschel HIPE processing
environment. Source photometry is made with annular aperture
photometry assuming asource annulus, inner annulus, outer annulus
equal to 6-arcsec, 15-arcsec, 20-arcsec for the PACS Green 100um
band and 10.5-arcsec, 15-arcsec, 20-arcsec for the PACS Red 160um
band. The aperture photometry task automatically selects the
appropriate aperture correction for the pipeline calibration (PACS FM7
response calibration file). The task also calculates realistic errors
for the aperture photometry by laying down a series of apertures
around but offset from the source position.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
greennep.dat 39 1384 PACS North Ecliptic Pole in Green (100um) band
rednep.dat 39 630 PACS North Ecliptic Pole in Red (160um) band
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See also:
J/A+AS/75/67 : Survey around North Ecliptic Pole at 11cm (Loiseau+, 1988)
J/ApJS/162/304 : ROSAT NEP X-ray source catalog (Henry+, 2006)
J/ApJS/149/29 : ROSAT North Ecliptic Pole Survey (Gioia+, 2003)
J/ApJS/172/583 : NEP source catalog (Hwang+, 2007)
J/PASJ/59/S529 : NEP deep survey at 11um (Lee+, 2007)
J/A+A/517/A54 : 20cm survey of the AKARI NEP (White+, 2010)
J/ApJS/190/166 : Optical catalog of AKARI NEP-wide survey (Jeon+, 2010)
J/A+A/548/A29 : IR source catalog of AKARI NEP-Wide field (Kim+, 2012)
J/A+A/559/A132 : AKARI NEP Deep Survey revised catalog (Murata+, 2013)
J/ApJS/207/37 : IR sources spectroscopy in the AKARI NEP (Shim+, 2013)
J/A+A/566/A60 : Optical-NIR catalog of AKARI NEP Deep Field (Oi+, 2014)
J/ApJS/214/20 : AKARI NEP field J- and H- band source catalog (Jeon+, 2014)
J/MNRAS/446/911 : X-ray sources in the AKARI NEP deep field (Krumpe+, 2015)
Byte-by-byte Description of file: greennep.dat
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Bytes Format Units Label Explanations
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1- 11 F11.7 deg RAdeg Right ascension (J2000)
13- 23 F11.8 deg DEdeg Declination (J2000)
25- 31 F7.3 mJy FluxGreen Flux Density in green band (100um)
33- 39 F7.3 mJy e_FluxGreen Error on Flux
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Byte-by-byte Description of file: rednep.dat
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Bytes Format Units Label Explanations
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1- 11 F11.7 deg RAdeg Rigth ascension (J2000)
13- 23 F11.8 deg DEdeg Declination (J2000)
25- 31 F7.3 mJy FluxRed Flux Density in red (160um) band
33- 39 F7.3 mJy e_FluxRed Error on Flux
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Acknowledgements:
Chris Pearson, chris.pearson(at)stfc.ac.uk
(End) Patricia Vannier [CDS] 31-Jul-2018