J/MNRAS/400/995 WMAP 3-yr sources at 16 and 33GHz. II. (Franzen+, 2009)
Follow-up observations at 16 and 33GHz of extragalactic sources from WMAP 3-yr
data.
II. Flux density variability.
Franzen T.M.O., Davies M.L., Davies R.D., Davis R.J., Feroz F.,
Genova-Santos R., Grainge K.J.B., Green D.A., Hobson M.P.,
Hurley-Walker N., Lasenby A.N., Lopez-Caniego M., Olamaie M.,
Padilla-Torres C.P., Pooley G.G., Rebolo R., Rodriguez-Gonzalvez C.,
Saunders R.D.E., Scaife A.M.M., Scott P.F., Shimwell T.W.,
Titterington D.J., Waldram E.M., Watson R.A., Zwart J.T.L.
<Mon. Not. R. Astron. Soc., 400, 995-1005 (2009)>
=2009MNRAS.400..995F 2009MNRAS.400..995F
ADC_Keywords: Radio sources ; Active gal. nuclei
Keywords: galaxies: active - cosmic microwave background -
cosmology: observations - radio continuum: general
Abstract:
Using the Arcminute Microkelvin Imager (AMI) at 16GHz and the Very
Small Array (VSA) at 33GHz to make follow-up observations of sources
in the New Extragalactic WMAP Point Source catalogue, we have
investigated the flux density variability in a complete sample of 97
sources over time-scales of a few months to ∼1.5yr.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 84 97 Results for individual sources
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See also:
J/MNRAS/392/733 : The NEWPS catalog from WMAP 5-yr survey (Massardi+, 2009)
J/MNRAS/400/984 : WMAP 3-yr sources at 16 and 33GHz. I. (Davies+, 2011)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Source Source name (JHHMM+SSMM) taken from the
NEWPS catalogue
12- 13 I2 h RAh Right ascension (J2000)
15- 16 I2 min RAm Right ascension (J2000)
18- 21 F4.1 s RAs Right ascension (J2000)
23 A1 --- DE- Declination sign (J2000)
24- 25 I2 deg DEd Declination (J2000)
27- 28 I2 arcmin DEm Declination (J2000)
30- 31 I2 arcsec DEs Declination (J2000)
33 I1 --- o_S16 Number of observations at 16GHz with AMI
35 I1 --- o_S33 Number of observations at 33GHz with VSA
37- 41 F5.2 Jy S16 ?=- Flux density at 16GHz with AMI
43- 47 F5.2 Jy S33 Flux density at 33GHz with VSA
49- 51 A3 --- Var1 Variability from AMI observations (VAR or NV)
53- 55 A3 --- Var2 Variability from VSA observations (VAR or NV)
57- 60 F4.1 % V16 ?=- Mean variability index from AMI observations
62- 64 I3 d D16 ? Mean number of days separating the
observations for V16
66- 69 F4.1 % V33 ?=- Mean variability index from AMI observations
71- 73 I3 d D33 ? Mean number of days separating the
observations for V16
75- 79 F5.2 --- alpha ?=- Spectral index α between 33.75
and 13.9GHz (S(ν)∝ν-α)
81- 84 F4.2 --- e_alpha ? rms uncertainty on alpha
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History:
From electronic version of the journal
References:
Davies et al., Paper I 2009MNRAS.400..984D 2009MNRAS.400..984D, Cat. J/MNRAS/400/984
(End) Patricia Vannier [CDS] 08-Oct-2011