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J/A+A/403/141       ISOGAL sources in intermediate bulge fields    (Ojha+, 2003)

Stellar sources in the ISOGAL intermediate bulge fields. Ojha D.K., Omont A., Schuller F., Simon G., Ganesh S., Schultheis M. <Astron. Astrophys. 403, 141 (2003)> =2003A&A...403..141O
ADC_Keywords: Infrared sources ; Photometry, infrared Mission_Name: ISO Keywords: stars: AGB and post-AGB - stars: circumstellar matter - stars: mass-loss - dust - infrared: stars - Galaxy: bulge Abstract: We present a study of ISOGAL sources in the "intermediate" galactic bulge (|l|<2°, |b|∼1°-4°), observed by ISOCAM at 7 and 15µm. In combination with near-infrared (I, J, Ks) data of DENIS survey, complemented by 2MASS data, we discuss the nature of the ISOGAL sources, their luminosities, the interstellar extinction and the mass-loss rates. A large fraction of the 1464 detected sources at 15µm are AGB stars above the RGB tip, a number of them show an excess in ([7]-[15])0 and (Ks-[15])0 colours, characteristic of mass-loss. The latter, especially (Ks-[15])0, provide estimates of the mass-loss rates and show their distribution in the range 10-8 to 10-5M/yr. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 147 9 Log of ISOCAM, DENIS and 2MASS observations in the intermediate bulge fields. table2a.dat 212 2353 Catalogue of ISOGAL-DENIS sources from nine intermediate bulge fields with their 2MASS (<B/2mass>) & MSX (V/107) counterparts. table2b.dat 106 321 Sub-sample of ISOGAL-DENIS sources from table2a.dat with Av, mass-loss rate & luminosity values.
See also: B/denis : The DENIS database (Epchtein+, 1999) B/2mass : The 2MASS database (IPAC/UMass, 2000) II/243 : The ISOGAL Point Source Catalogue - IGPSC (Omont+ 2003) V/107 : MSX5C Infrared Point Source Catalog (Egan+ 1999) J/A+A/362/199 : YSOs in the l=+45 ISOGAL field (Felli+, 2000) J/A+A/392/971 : Catalogue of bright YSO candidates in ISOGAL (Felli+, 2002) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 14 A14 --- Field ISOGAL Field (G1) 16- 32 A17 --- OField Other designation of the field 34- 41 I8 --- ObsISOGAL1 First ISOGAL Observation number 43- 45 A3 --- Filter1 ISOGAL filter for first observation 47- 56 A10 "DD/MM/YYYY" ISOGALDate1 Date of first ISOGAL Observation 58- 62 I5 deg-2 Dens1 Source densities at 7 and 15µm (per deg2) of first ISOGAL Observation 64- 67 F4.2 mag MagLimit1 7 and 15µm mag limits of first ISOGAL Observation 69- 76 I8 --- ObsISOGAL2 Second ISOGAL Observation number 78- 80 A3 --- Filter2 ISOGAL filter of second ISOGAL Observation 82- 91 A10 "DD/MM/YYYY" ISOGALDate2 Date of second ISOGAL Observation 93- 97 I5 deg-2 Dens2 Source densities at 7 and 15µm (per deg2) of second ISOGAL observation 99-102 F4.2 mag MagLimit2 7 and 15µm mag limits of second ISOGAL Observation 104-113 A10 "DD/MM/YYYY" DENISDate Date of DENIS IJKs observations 115 A1 --- --- [&] 117-126 A10 "DD/MM/YYYY" DENISDate2 Second date of DENIS IJKs observations 128-137 A10 "DD/MM/YYYY" 2MASSDate Date of 2MASS JHKs Obs. 139-142 F4.1 mag AV Interstellar extinction 144-147 F4.1 mag KsLimit DENIS Ks limit
Byte-by-byte Description of file: table2a.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Seq Source number 5 A1 --- n_Seq [*] *: source in table2b.dat 6- 19 A14 --- Field ISOGAL Field Name (G1) 21- 28 A8 --- --- ISOGAL-P-] 29- 44 A16 --- ISOGAL ISOGAL designation (from sexagesimal coordinates (J2000)) 46- 54 F9.5 deg RAdeg Right ascension in decimal degrees (J2000) 56- 64 F9.5 deg DEdeg Declination in decimal degrees (J2000) 66- 74 F9.5 deg GLON [-2/2] Galactic longitude 76- 84 F9.5 deg GLAT Galactic latitude 86- 90 F5.2 arcsec Dist ISOGAL-DENIS association distance 92 I1 --- q_Dist ISOGAL-DENIS association quality 94- 98 F5.2 mag Imag ?=99.99 DENIS I magnitude (1) 100-103 F4.2 mag qImag ?=0.00 DENIS I magnitude PSF quality index 105-109 F5.2 mag Jmag ?=99.99 DENIS J magnitude (1) 111-114 F4.2 mag qJmag ?=0.00 DENIS J magnitude PSF quality index 116-120 F5.2 mag Ksmag ?=99.99 DENIS Ks magnitude (1) 122-125 F4.2 mag qKsmag ?=0.00 DENIS Ks magnitude PSF quality index 127-133 F7.2 mag Jmag2 ?=99.99 2MASS J magnitude (1) (2) 135 I1 --- q_Jmag2 ?=0 2MASS J magnitude quality index 137-143 F7.2 mag Hmag2 ?=99.99 2MASS H magnitude (1) (2) 145 I1 --- q_Hmag2 ?=0 2MASS H magnitude quality index 147-153 F7.2 mag Ksmag2 ?=99.99 2MASS Ks magnitude (1) (2) 155 I1 --- q_Ksmag2 ?=0 2MASS Ks magnitude quality index 157-161 F5.2 mag [7]mag ?=99.99 ISOGAL magnitude at 7mum (1) 163 I1 --- q_[7]mag ?=0 ISOGAL [7] magnitude quality index 165-169 F5.2 mag [15]mag ?=99.99 ISOGAL magnitude at 15mum (1) 171 I1 --- q_[15]mag ?=0 ISOGAL [15] magnitude quality index 173-177 F5.2 arcsec d[7]-[15] ?=0.00 ISOGAL [7]-[15] association distance 179 I1 --- q_d[7]-[15] ?=0 ISOGAL [7]-[15] association quality index 181-185 F5.2 mag Amag ?=99.99 MSX A band magnitude (1) 187 I1 --- q_Amag ?=0 MSX A band magnitude quality index 189-193 F5.2 mag Cmag ?=99.99 MSX C band magnitude (1) 195 I1 --- q_Cmag ?=0 MSX C band magnitude quality index 197-201 F5.2 mag Dmag ?=99.99 MSX D band magnitude (1) 203 I1 --- q_Dmag ?=0 MSX D band magnitude quality index 205-209 F5.2 mag Emag ?=99.99 MSX E band magnitude (1) 211 I1 --- q_Emag ?=0 MSX E band magnitude quality index
Note (1): Magnitudes assigned to values of 99.99 means that the source is not detected in the corresponding magnitude bands. Note (2): For 2MASS magnitudes, -100.0 mean that the magnitudes are saturated in the corresponding bands.
Byte-by-byte Description of file: table2b.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Seq Source number 6- 19 A14 --- Field ISOGAL Field Name (G1) 21- 28 A8 --- --- ISOGAL-P-] 29- 44 A16 --- ISOGAL ISOGAL designation (from sexagesimal coordinates J2000) 46- 54 F9.5 deg RAdeg Right ascension in decimal degrees (J2000) 56- 64 F9.5 deg DEdeg Declination in decimal degrees (J2000) 66- 74 F9.5 deg GLON [-2/2] Galactic longitude 76- 84 F9.5 deg GLAT Galactic latitude 86- 90 F5.2 mag AV Interstellar extinction 92- 99 E8.2 solMass/yr dM/dt Mass-loss rate 101-105 F5.2 [solLum] logLum Luminosity
Global notes: Note (G1): The Field names are derived from the Galactic positions, i.e., FC+00032-00217 means GLON = +0.32°, GLAT = -2.17°
Acknowledgements: Devendra Ojha
(End) Patricia Bauer [CDS] 05-May-2003
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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