J/AJ/137/3149 Near-infrared imaging polarimetry in S106 (Saito+, 2009)
Near-infrared imaging polarimetry of S106 cluster-forming region with SIRPOL.
Saito H., Tamura M., Kandori R., Kusakabe N., Hashimoto J., Nakajima Y.,
Sato Y., Nagata T., Nagayama T., Kato D.
<Astron. J., 137, 3149-3157 (2009)>
=2009AJ....137.3149S 2009AJ....137.3149S
ADC_Keywords: H II regions ; Polarization ; Photometry, infrared
Keywords: H II regions - infrared: stars - ISM: magnetic fields -
open clusters and associations: individual (S106) - reflection nebulae
Abstract:
We present the results of wide-field JHKS polarimetry toward the
HII region S106 using the Infrared Survey Facility telescope. Our
polarimetry data revealed an extended (up to ∼5') polarized nebula
over S106. We confirmed the position of the illuminating source of
most of the nebula as consistent with S106 IRS 4 through an analysis
of polarization vectors. The bright portion of the polarized intensity
is consistent with the red wing component of the molecular gas.
Description:
The observations of S106 were carried out on 2006 June 15 with the
imaging polarimeter SIRPOL, the polarimetry mode of the Simultaneous
3color Infrared Imager Unbiase Survey (SIRIUS) camera, on the 1.4m
Infrared Survey Facility (IRSF) telescope at the South African
Astronomical Observatory (SAAO).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 75 583 Identified point-like sources in S106
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ID [1/583] Running source identification number
5- 6 I2 h RAh Hour of Right Ascension (J2000)
8- 9 I2 min RAm Minute of Right Ascension (J2000)
11- 15 F5.2 s RAs Second of Right Ascension (J2000)
17- 18 I2 deg DEd Degree of Declination (J2000)
20- 21 I2 arcmin DEm Arcminute of Declination (J2000)
23- 26 F4.1 arcsec DEs Arcsecond of Declination (J2000)
28- 33 F6.3 mag Jmag The J band magnitude
35- 40 F6.3 mag Hmag The H band magnitude
42- 47 F6.3 mag Ksmag The Ks band magnitude
49- 53 F5.2 % Hpol ? Degree of polarization in H band
55- 58 F4.2 % e_Hpol ? Uncertainty in Hpol
60- 62 I3 deg Hpa ? Polarization angle in H band
64- 65 I2 deg e_Hpa ? Uncertainty in Hpa
67- 75 A9 --- Status Source membership status (1)
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Note (1): Source status as follows:
FG = foreground star
Field = star around S106 or background star
YSO = PMS star or a protostar
CL = member of the cluster of S106
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 26-Aug-2011