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J/A+A/470/281    WFI optical photometry in Cha II dark cloud (Spezzi+, 2007)

A WFI survey in the Chamaeleon II dark cloud. Spezzi L., Alcala J.M., Frasca A., Covino E., Gandolfi D. <Astron. Astrophys. 470, 281 (2007)> =2007A&A...470..281S
ADC_Keywords: Molecular clouds ; Stars, pre-main sequence ; Photometry Keywords: stars: low-mass, brown dwarfs - stars: formation - stars: pre-main sequence - ISM: clouds - ISM: individual objects: Chamaeleon II Abstract: We present the results of an optical multi-band survey for low-mass pre-main sequence (PMS) stars and young brown dwarfs (BDs) in the Chamaeleon II (Cha II) dark cloud. This survey constitutes the complementary optical data to the c2d Spitzer Legacy survey in Cha II. Description: Table 7 reports the optical photometry of 73 objects in the Chamaeleon II (Cha II) dark cloud. These data are part of an optical multi-band survey for low-mass pre-main sequence stars and young brown dwarfs in Cha II, performed using the wide-field imager (WFI) at the ESO 2.2m telescope. As clarified in the last column, the table contains the confirmed members of Cha II, the candidates selected by previous surveys, and the new candidates selected in this work, as well as other sources identified as possible candidates in previous studies but that were rejected by our selection criteria. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table7.dat 149 74 Optical photometry of objects in the ChaII dark cloud refs.dat 81 13 References
See also: J/A+A/319/184 : New WTTS in the Chamaeleon complex (Alcala+ 1997) J/A+A/399/995 : SOFI and ISOCAM observations of Cha II (Persi+, 2003) Byte-by-byte Description of file: table7.dat
Bytes Format Units Label Explanations
1- 21 A21 --- Name Object name 23- 24 I2 h RAh Right ascension (J2000) (1) 26- 27 I2 min RAm Right ascension (J2000) (1) 29- 33 F5.2 s RAs Right ascension (J2000) (1) 35 A1 --- DE- Declination sign (J2000) (1) 36- 37 I2 deg DEd Declination (J2000) (1) 39- 40 I2 arcmin DEm Declination (J2000) (1) 42- 46 F5.2 arcsec DEs Declination (J2000) (1) 48- 52 F5.2 mag Rcmag ? Cousins R magnitude 54- 57 F4.2 mag e_Rcmag ? rms uncertainty on Rcmag 58 A1 --- n_Rcmag [*] * when magnitude from literature (2) 59- 60 A2 --- f_Rcmag [S ] Flag when no value (3) 62- 66 F5.2 mag Icmag ? Cousins I magnitude 68- 71 F4.2 mag e_Icmag ? rms uncertainty on Icmag 72 A1 --- n_Icmag [*] * when magnitude from literature (2) 73- 74 A2 --- f_Icmag [S ] Flag when no value (3) 76- 80 F5.2 mag zmag ? z magnitude in the WFI z+/61 filter (central wavelength at 964.819nm) 82- 85 F4.2 mag e_zmag ? rms uncertainty on zmag 86- 87 A2 --- f_zmag [S ND] Flag when no value (3) 89- 93 F5.2 mag Ha7mag ? Halpha7 magnitude in the WFI Halpha/7 filter (central wavelength at 658.827nm) 95- 98 F4.2 mag e_Ha7mag ? rms uncertainty on Ha7mag 99-100 A2 --- f_Ha7mag [ND NO] Flag when no value (3) 102-106 F5.2 mag Ha12mag ? Halpha12 magnitude in the WFI 665/12 filter (central wavelength at 665nm) 108-111 F4.2 mag e_Ha12mag ? rms uncertainty on Ha12mag 112-113 A2 --- f_Ha12mag [ND NO] Flag when no value (3) 115-119 F5.2 mag m856mag ? m856 magnitude in the WFI 856/12 filter (central wavelength at 856nm) 121-124 F4.2 mag e_m856mag ? rms uncertainty on m856mag 125-126 A2 --- f_m856mag [S NO] Flag when no value (3) 128-132 F5.2 mag m914mag ? m914 magnitude in the WFI 914/12 filter (central wavelength at 914nm) 134-137 F4.2 mag e_m914mag ? rms uncertainty on m914mag 138-139 A2 --- n_m914mag [S NO] Flag when no value (3) 141-143 A3 --- Refs [a-m ,] Reference for the object, in refs.dat 145-149 A5 --- Notes Note for the object (4)
Note (1): The positions for most objects are from the R-band images. For saturated objects in the R-band the positions are from the Hα12 images; the coordinates of Sz 62, not observed in Hα, are from the z-band image. Note (2): Magnitudes marked with an asterisk are taken from the the literature (see the relative references) and correspond to objects saturated in our images. Comments about some of these objects are given in Appendix C. Note (3): Flag as follows: S = Saturated object ND = Object not detected NO = Object not observed Note (4): Notes as follows: * = Confirmed member o = Previously known candidate a = Object recovered by our selection criteria N = Member candidate firstly identified in this work b = Object rejected on the basis of our selection criteria c = Veiled object d = Embedded object e = Component of a visual binary or multiple system
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1 A1 --- Ref Reference code 3- 21 A19 --- BibCode BibCode 23- 56 A34 --- Aut Author's name 61- 81 A21 --- Com Comments
Acknowledgements: Loredana Spezzi, lspezzi(at)oact.inaf.it
(End) Loredana Spezzi [INAF-OA Capodimonte], Patricia Vannier [CDS] 07-Jun-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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