J/A+AS/94/399 Absolute fluxes and distances of PN (Cahn+, 1992) ================================================================================ A catalogue of absolute fluxes and distances of planetary nebulae. Cahn J.H., Kaler J.B., Stanghellini L. =1992A&AS...94..399C ================================================================================ ADC_Keywords: Planetary nebulae ; Stars, distances ; Extinction Keywords: planetary nebulae: absolute fluxes - distances - extinctions Abstract: We present a complete list of averaged recalibrated absolute H{beta} fluxes, global (where possible) relative He II {lambda} 4686 fluxes, 5-GHz radio flux densities, and H{alpha}/H{beta} interstellar extinction constants for 778 Galactic planetary nebulae. The catalog provides much of the fundamental data required to generate Zanstra temperatures. When data with the lowest errors are selected, the optical and radio/optical extinctions show a peculiar correlation, with the radio values slightly high at low extinction and notably low at high extinction. The data are used, along with the best estimates of angular diameters, to calculate Shklovsky distances according to the Daub scheme on the scale used earlier by Cahn and Kaler (1971ApJS...22..319C). Use of this distance scale shows approximate equality of the death rates of optically thick and optically thin planetary nebulae. The method gives the correct distances to the Magellanic Clouds. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table1.dat 109 779 Optical fluxes of galactic planetary nebula. table2.dat 122 778 *Radio flux observations and radio and optical extinctions of galactic planetary nebulae. table4.dat 69 780 *Distances, optical depth, and radii of galactic planetary nebulae. refs.dat 139 133 References -------------------------------------------------------------------------------- Note on table2.dat: no observations for Ap 3-1 Note on table4.dat: Two sets of data for Ap 2-1 -------------------------------------------------------------------------------- See also: V/84 : Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992) VI/14 : Bibliographical index of planetary nebulae for the period 1965-79 IV/24 : Catalogue of Galactic Planetary Nebulae (Kohoutek, 2001) Byte-by-byte Description of file: table1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 10 A10 --- Name PN name 12 A1 --- n_Name [pHS*] Note on Name (G1) 14- 22 A9 --- PK PK number 24- 27 F4.2 10-4K Te Electron temperature 30- 34 F5.3 --- HeIII/HeI ? HeIII/HeI ratio (G2) 37- 41 F5.3 --- He/H ? He/H ratio (G2) 43- 48 F6.2 [mW/m2] log(FHb) ? H{beta} flux (G2) 51- 54 F4.2 [mW/m2] e_log(FHb) ? rms uncertainty on log(FHb) 59- 82 A24 --- r_log(FHb) References for H{beta} data, in refs.dat file 84- 89 F6.2 --- I(HeII) ? Average intensity of He II {lambda}4686, on scale I(H{beta})=100 (G2) 90- 94 F5.2 --- e_I(HeII) ? rms uncertainty on I(HeII) 96-110 A15 --- r_I(HeII) References for He II {lambda}4686 data, in refs.dat file -------------------------------------------------------------------------------- Byte-by-byte Description of file: table2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 10 A10 --- Name PN name 12 A1 --- n_Name Note on Name (G1) 15- 21 F7.4 GHz nu ? Frequency 23- 29 F7.4 Jy F(nu) ? Flux density at nu frequency 32- 38 F7.5 Jy e_F(nu) ? rms uncertainty on F(nu)dnu 39 A1 --- n_F(nu) [:] : For Bl 2-1, E{nu}=K.011, modified in 0.011 40- 53 A14 --- r_F(nu) References for nu data, in refs.dat file 54- 59 F6.3 Jy F(5) ? Flux density at 5GHz (G2) 65- 69 F5.2 --- cr ? Radio extinction constant (G2) (1) 70 A1 --- n_cr [E] E: Err, no data 73- 78 F6.3 --- calpha ? Optical extinction constant (G2) (2) 82- 85 F4.2 --- e_calpha ? rms uncertainty on calpha 90-139 A50 --- r_calpha References for alpha data, in refs.dat file -------------------------------------------------------------------------------- Note (1): Radio extinction constant: logarithmic extinction at H{beta} derived from the ratios of the 5GHz flux densities to the H{beta} fluxes, and the electron temperature and ionic helium ratios in table 1. Note (2): Optical extinction constant: with the exceptions of those indicated in the references, they are all from the H{alpha}/H{beta} intensity ratio. -------------------------------------------------------------------------------- Byte-by-byte Description of file: table4.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 10 A10 --- Name PN name 12 A1 --- n_Name Note on Name (G1) 14- 22 A9 --- PK PK number 24 A1 --- l_RadAng Limit flag on RadAng 25- 30 F6.2 arcsec RadAng ? Angular radius 31 A1 --- n_RadAng [:] : For Vy2-1, ?.9 modified in 1.9 33- 37 F5.3 Jy Fb(5) ? Equivalent 5GHz radio flux, derived from H{beta} 38 A1 --- n_Fb(5) [E] E: Err, no data 41- 46 F6.4 Jy F(5) ? Radio flux at 5GHz 47 A1 --- n_F(5) [E] E: Err, no data 49- 52 F4.2 --- Tau ? Optical depth 53 A1 --- n_Tau [E] E: Err, no data 56- 60 I5 pc Dist ? Distance 65- 69 F5.3 pc Rad ? Radius in pc -------------------------------------------------------------------------------- Byte-by-byte Description of file: refs.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 21 A21 --- Ref Reference code 23- 41 A19 --- BibCode BibCode 43- 81 A39 --- Aut Author's name 82-139 A58 --- Com Comments -------------------------------------------------------------------------------- Global notes: Note (G1): Notes use the following symbols: * = symbiotic stars (Acker et al., 1987A&AS...71..163A, except He2-127: Acker & Stenholm, 1990A&AS...86..219A) p = peculiar emission line star (Acker et al., 1987A&AS...71..163A) H = H II regions (Acker et al., 1987A&AS...71..163A) S = Seyfert-galaxy (Acker et al., 1987A&AS...71..163A) Note (G2): '-' means not analysed (NA) -------------------------------------------------------------------------------- History: Prepared via OCR at CDS. ================================================================================ (End) James Marcout, Patricia Bauer [CDS] 27-Jun-2003