J/ApJS/145/213 Rotation measures of compact sources in CGPS (Brown+, 2003)
Rotation measures of compact sources in the Canadian Galactic Plane Survey.
Brown J.C., Taylor A.R., Jackel B.J.
<Astrophys. J. Suppl. Ser. 145, 213 (2003)>
=2003ApJS..145..213B 2003ApJS..145..213B
ADC_Keywords: Galaxy catalogs ; Magnetic fields
Keywords: catalogs - ISM: magnetic fields - polarization -
radio continuum: galaxies - techniques: polarimetric
Abstract:
The Canadian Galactic Plane Survey is providing new rotation measures
(RMs) for compact extragalactic sources in the Galactic plane at a
solid-angle density of roughly 1 source per square degree. To date, we
have derived reliable RM values for 380 sources along lines of sight
through the disk of the Galaxy in the first and second quadrants. The
purpose is to provide a data set useful for studies of the
magneto-ionic component of the Galactic interstellar medium (ISM). We
present the method used to obtain the measurements and the resulting
RMs.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 54 380 Rotation Measures of the CGPS
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See also:
B/cgps : Log of CGPS exposures (Taylor+, 2003-)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 6 F6.2 deg GLON Galactic longitude (1)
8 A1 --- f_GLON [abc] Two components indicator (2)
10- 14 F5.2 deg GLAT Galactic latitude
16- 17 I2 h RAh Hour of Right Ascension (J2000)
19- 20 I2 min RAm Minute of Right Ascension (J2000)
22- 25 F4.1 s RAs Second of Right Ascension (J2000)
26 A1 --- DE- Sign of Declination (J2000)
27- 28 I2 deg DEd Degree of Declination (J2000)
30- 31 I2 arcmin DEm Arcminute of Declination (J2000)
33- 34 I2 arcsec DEs Arcsecond of Declination (J2000)
36- 39 I4 mJy Int Integrated flux density (3)
41- 44 F4.1 % FracPol Average value of the fraction of linear
polarization (4)
46- 50 I5 rad/m2 RM Rotation measure
52- 53 I2 rad/m2 e_RM Uncertainty in RM
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Note (1): Sources are identified as CGPS LLL.ll+B.bb in Simbad.
Note (2): Note on GLON as follows:
a = Two separate components in L (one or both passed) and two
unresolved components in I.
I value represents the combined integrated flux density.
b = Two components in L (only one passed), but only one identifiable
component in I.
I value represents the integrated flux density of the whole source
c = One component in L and two unresolved components in I.
I value represents the combined integrated flux density.
Note (3): Estimated from the two-dimensional Gaussian fit parameters of the
source in the final release CGPS Stokes I images. The uncertainties
in the values of the integrated flux densities are within +10%
(unless otherwise noted).
Note (4): Calculated across the S/N-thresholded FWHM pixels using
interferometric data only.
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History:
From electronic version of the journal
References:
English et al., The Canadian Galactic Plane Survey, 1998PASA...15...56E 1998PASA...15...56E
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 31-Mar-2003