J/MNRAS/428/3048 WMAP point sources at 61 and 94GHz (Lanz+, 2013)
Extragalactic point source detection in Wilkinson Microwave Anisotropy Probe
7-year data at 61 and 94 GHz.
Lanz L.F., Herranz D., Lopez-Caniego M., Gonzalez-Nuevo J., De Zotti G.,
Massardi M., Sanz J.L.
<Mon. Not. R. Astron. Soc., 428, 3048-3057 (2013)>
=2013MNRAS.428.3048L 2013MNRAS.428.3048L
ADC_Keywords: Radio sources
Keywords: methods: data analysis - techniques: image processing - surveys -
radio continuum: galaxies - cosmic background radiation
Abstract:
The detection of point sources in cosmic microwave background maps is
usually based on a single-frequency approach, whereby maps at each
frequency are filtered separately and the spectral information on the
sources is derived combining the results at the different frequencies.
In contrast, in the case of multifrequency detection methods, source
detection and spectral information are tightly interconnected in order
to increase the source detection efficiency.
In this work we apply the matched multifiltermethod to the
detection of point sources in the Wilkinson Microwave Anisotropy
Probe (WMAP) 7-year data at 61 and 94GHz. This linear
filtering technique takes into account the spatial and the cross-power
spectrum information at the same time using the spectral behaviour of
the sources without making any a priori assumption about it.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 49 10 Equatorial coordinates and identifications of
the Galactic or unidentified detections
table2.dat 57 119 Sources detected by the MMF (Multi-frequency Matched
Filter) on WMAP 7-year maps with counterparts in
lower frequency catalogues
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See also:
VIII/88 : Planck Early Release Compact Source Catalogue (Planck, 2011)
J/MNRAS/392/733 : The NEWPS catalog from WMAP 5-yr survey (Massardi+, 2009)
J/ApJS/192/15 : Seven-year WMAP catalog (Gold+, 2011)
Byte-by-byte Description of file: table1.dat table2.dat
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Bytes Format Units Label Explanations
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1- 7 F7.3 deg RAdeg Right ascension (J2000)
9- 15 F7.3 deg DEdeg Declination (J2000)
17- 22 F6.2 Jy S94GHz ?=- Flux density at 94GHz (in Jy/beam) (1)
24- 27 F4.2 Jy rms ? rms (1)
29- 33 F5.2 --- gamma ?=- Spectral index (1)
35- 53 A19 --- Name Name in other catalogs
55- 57 A3 -- Flag [WNP ] Flag (2)
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Note (1): Sources without data are detections that, due to the multifrequency
method, do not have a clear estimation of their flux density of the spectral
index inside the studied range of γ. These sources with no flux density
information are not taken into account in the subsequent analysis.
Note (2): Flag as follows:
W = source is listed in any of the WMAP 7-year catalogues at any frequency
(Gold et al. 2011, Cat. J/ApJS/192/15)
N = source in NEWPS 5-year catalogue at 61GHz
(Massardi et al. 2009, Cat. J/MNRAS/392/733)
P = source in the Planck catalogue at 70 or 100GHz
(Planck Collaboration 2011, Cat. VIII/88)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 07-Feb-2014