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J/A+A/471/165       UBVRI polarisation in NGC 5606           (Orsatti+, 2007)

Revisiting the region of the open cluster NGC 5606. Orsatti A.M., Feinstein C., Vega E.I., Vergne M.M. <Astron. Astrophys., 471, 165-172 (2007)> =2007A&A...471..165O
ADC_Keywords: Clusters, open ; Polarization Keywords: ISM: dust, extinction - techniques: polarimetric - open clusters and associations: individual: NGC 5606 Abstract: We present polarimetric observations in the UBVRI bands corresponding to 54 stars located in the direction of NGC 5606. Our intention is to analyze the dust characteristics between the Sun and the cluster, as well as to confirm doubtful memberships using polarimetric tools. We also want to determine if a group of 11 B and A stars identified in the past by Vazquez & Feinstein (1991A&AS...87..383V) in front of NGC 5606 has any physical entity. From polarimetric data we have found at least two dust layers along the line of sight to the open cluster. Description: Observations in the UBV(RI)C bands (KC: Kron-Cousins, λUeff=0.36um, FWHM=0.05um; λBeff=0.44um, FWHM=0.06um; λVeff=0.53um, FWHM=0.06um; λReff=0.69um, FWHM=0.18um; λIeff=0.83um, FWHM=0.15um) were carried out using the five-channel photopolarimeter of the Torino Astronomical Observatory attached to the 2.15m telescope at the Complejo Astronomico El Leoncito (San Juan, Argentina). They were performed on six nights (April 6-9; May 7-8) in 2005. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 118 54 Polarimetric observations towards NGC 5606 table2.dat 54 54 Polarization results of stars towards NGC 5606
See also: J/A+AS/106/339 : Photometry of open cluster NGC 5606 (Vazquez+ 1994) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 A2 --- --- [Vz] 4- 5 I2 --- VF Star identification from Vazquez & Feinstein (1991A&AS...87..383V), Cl* NGC 5606 VF NN in Simbad 6 A1 --- n_VF [*] * NGC 5606 members for Vazquez & Feinstein 8- 11 A4 --- MV Identifications from Moffat & Vogt (1973A&AS...10..135M), MVNN (1) 13- 16 F4.2 % PolU ?=- Polarisation U filter 18- 21 F4.2 % e_PolU ?=- rms uncertainty on PolU 23- 27 F5.1 deg PAU ?=- Polarisation position angle in U filter 29- 32 F4.1 deg e_PAU ?=- rms uncertainty on PAU 34 I1 --- n Number of iterations 36- 39 F4.2 % PolB ?=- Polarisation B filter 41- 44 F4.2 % e_PolB ?=- rms uncertainty on PolB 46- 50 F5.1 deg PAB ?=- Polarisation position angle in B filter 52- 55 F4.1 deg e_PAB ?=- rms uncertainty on PAB 57- 60 F4.2 % PolV Polarisation in V filter 62- 65 F4.2 % e_PolV rms uncertainty on PolV 67- 71 F5.1 deg PAV Polarisation position angle in V filter 73- 76 F4.1 deg e_PAV rms uncertainty on PAV 78- 81 F4.2 % PolR Polarisation in R filter 83- 86 F4.2 % e_PolR rms uncertainty on PolR 88- 92 F5.1 deg PAR Polarisation position angle in Cousins R filter 94- 97 F4.1 deg e_PAR rms uncertainty on PAR 99-102 F4.2 % PolI Polarisation in Cousins I filter 104-107 F4.2 % e_PolI rms uncertainty on PolI 109-113 F5.1 deg PAI Polarisation position angle in Cousins I filter 115-118 F4.1 deg e_PAI rms uncertainty on PAI
Note (1): MVNN = NGC 5606 NN in Simbad
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 2 I2 --- VF Star identifications from Vazquez & Feinstein (1991A&AS...87..383V), Cl* NGC 5606 VF NN in Simbad 3 A1 --- n_VF [*] * NGC 5606 members for Vazquez & Feinstein 5- 8 F4.2 % Pmax Maximum polarisation 10- 13 F4.2 % e_Pmax rms uncertainty on Pmax 15- 18 F4.2 --- sigma1 Unit weight error of the fit (1) 20- 23 F4.2 um lam.max Wavelength of maximum polarisation 25- 28 F4.2 um e_lam.max rms uncertainty on lambdamax 30- 34 A5 --- SpType MK Spectral type from the WEBDA database 36- 54 A19 --- Memb Membership revision
Note (1): (sigma1)2={Sum}[(rλ/Pλ)2]/(m-2) where m is the number of colors and rλ=Pλ-Pmax*exp(-K*[ln(λmax/λ)]2)
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 15-Nov-2007
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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