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J/AJ/136/621        Near-infrared polarimetry of M42     (Kusakabe+, 2008)

Near-infrared imaging polarimetry of M42: aperture polarimetry of point-like sources. Kusakabe N., Tamura M., Kandori R., Hashimoto J., Nakajima Y., Nagata T., Nagayama T., Hough J., Lucas P. <Astron. J., 136, 621-630 (2008)> =2008AJ....136..621K
ADC_Keywords: Clusters, open ; Photometry, infrared ; Polarization Keywords: circumstellar matter - infrared: stars - ISM: individual (M42) - polarization - stars: formation Abstract: We have conducted aperture polarimetry of ∼500 stars of the Orion Nebula Cluster in M42 based on our wide-field (∼8'x8') JHKs-band polarimetry. Most of the near-infrared (NIR) polarizations are dichroic, with position angles of polarization agreeing, both globally and locally, with previous far-infrared (FIR) and submillimeter observations, having taken into account the 90° difference in angles between dichroic absorption and emission. This is consistent with the idea that both NIR dichroic polarizations and FIR/submillimeter thermal polarizations trace the magnetic fields in the OMC-1 region. Description: We carried out NIR polarimetric observations of M42 using the imaging polarimeter SIRPOL, the polarimetry mode of the SIRIUS camera on the 1.4m telescope IRSF, at the South African Astronomical Observatory (SAAO), on the night of 2005 December 26. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 49 314 H band polarization list of 314 sources
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Hour of right ascension (J2000) 4- 5 I2 min RAm Minute of right ascension (J2000) 7- 11 F5.2 s RAs Second of right ascension (J2000) 13 A1 --- DE- Sign of the declination (J2000) 14- 15 I2 deg DEd Degree of declination (J2000) 17- 18 I2 arcmin DEm Arcminute of declination (J2000) 20- 23 F4.1 arcsec DEs Arcsecond of declination (J2000) 25- 29 F5.2 mag Hmag H band magnitude (1) 31- 34 F4.1 % Pol H band polarization percentage 36- 38 F3.1 % e_Pol Uncertainty in Pol 40- 42 I3 deg theta Polarization position angle 44- 45 I2 deg e_theta Uncertainty in theta 47- 49 I3 --- ID Source identification number (2)
Note (1): All H band magnitude errors are less than 0.1mag. Missing ID sources are low polarization signal-to-noise (S/N<2). Note (2): In Simbad, sources identified as [KTK2008] JHHMMSS.ss+DDMMSS.s
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 23-Mar-2011
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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