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J/AZh/79/867     Abundances of HII regions in blue galaxies   (Holovatyy+, 2002)

The chemical composition of HII regions in blue compact dwarf galaxies. Holovatyy V.V., Melekh B.Ya. <Astron. Zh. 79, 867 (2002)> =2002AZh....79..867H =2002ARep...46..779H
ADC_Keywords: Galaxies, optical ; H II regions ; Abundances Abstract: New expression for the ionization correction factors (ICF) are used to find the nebular-gas compositions in HII regions in blue compact dwarf galaxies (BCD). The abundances of He, N, O, Ne, S, and Ar in 41 HII regions are determined. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file position.dat 63 41 HII region positions from Simbad table1.dat 102 17 Empirical expression for determining the compositions of nebular gas and values of (A/H)calc/(A/H)mod for HII regions in BCD galaxies refs.dat 64 12 References from table1 table2.dat 110 41 Composition of HII regions in BCD galaxies, found using ICFs in table1.dat table3.dat 104 41 Composition of HII regions in BCD galaxies, found using ICFs from grids of photoionization models from Stasinska, 1990A&AS...83..501S
See also: J/A+AS/139/1 : HI in Byurakan blue compact galaxies (Thuan+, 1999) J/ApJ/511/639 : Abundances in blue compact galaxies (Izotov+, 1999) J/A+A/397/463 : The Hamburg/SAO Survey for BCGs. I. (Ugryumov+, 2003) Byte-by-byte Description of file: position.dat
Bytes Format Units Label Explanations
1- 14 A14 --- HII Name of the HII region 16- 17 I2 h RAh Right ascension (J2000.0) 19- 20 I2 min RAm Right ascension (J2000.0) 22- 25 F4.1 s RAs Right ascension (J2000.0) 27 A1 --- DE- Declination sign (J2000.0) 28- 29 I2 deg DEd Declination (J2000.0) 31- 32 I2 arcmin DEm Declination (J2000.0) 34- 35 I2 arcsec DEs ? Declination (J2000.0) 37- 63 A27 --- Com Comments
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 A3 --- TN Analytical expression designation (T1-T17) 5- 12 A8 --- r_TN Reference numbers, in file "refs.dat" 14- 96 A83 --- Expression Expression 99-102 F4.2 --- D(A/H) Calculated to model (A/H) abundance ratio
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 2 I2 --- RefNo Reference number 3 A1 --- --- [:] 5- 64 A60 --- Text Author and reference (bibcode)
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 2 I2 --- N Running number 4- 17 A14 --- HII Name of HII region 20- 24 F5.2 10-2 [He/H]T1/8 Abundance [He/H]*100 using T1 and recombination coefficient from Brocklehurst, 1972MNRAS.157..211B 27- 31 F5.2 10-2 [He/H]T2/8 ? Abundance [He/H]*100 using T2 and recombination coefficient from Brocklehurst, 1972MNRAS.157..211B 34- 38 F5.2 10-2 [He/H]T1/9 Abundance [He/H]*100 using T1 and recombination coefficient from Smits, 1996MNRAS.278..683S 41- 45 F5.2 10-2 [He/H]T2/9 ? Abundance [He/H]*100 using T2 and recombination coefficient from Smits, 1996MNRAS.278..683S 48- 51 F4.2 10-6 [N/H]T6 ? Abundance [N/H]*106 using T6 54- 58 F5.2 10-5 [O/H]T7 Abundance [O/H]*105 using T7 61- 65 F5.2 10-5 [O/H]T8 ? Abundance [O/H]*105 using T8 68- 72 F5.2 10-5 [O/H]T9 ? Abundance [O/H]*105 using T9 75- 79 F5.2 10-5 [O/H]T10 Abundance [O/H]*105 using T10 82- 86 F5.2 10-6 [Ne/H]T11 ? Abundance [Ne/H]*106 using T11 89- 92 F4.2 10-6 [S/H]T13 ? Abundance [S/H]*106 using T13 95- 98 F4.2 10-7 [Ar/H]T14 ? Abundance [Ar/H]*107 using T14 101-104 F4.2 10-7 [Ar/H]T16 ? Abundance [Ar/H]*107 using T16 107-110 F4.2 10-7 [Ar/H]T17 ? Abundance [Ar/H]*107 using T17
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 2 I2 --- N Running number 4- 17 A14 --- HII Name of HII region 20- 23 F4.2 10-2 [He/H]8 ? Abundance [He/H]*100 using T1 and recombination coefficient from Brocklehurst, 1972MNRAS.157..211B 26- 29 F4.2 10-2 e_[He/H]8 ? Uncertainty in [He/H]8 32- 35 F4.2 10-2 [He/H]9 ? Abundance [He/H]*100 using recombination coefficient from Smits, 1996MNRAS.278..683S 38- 41 F4.2 10-2 e_[He/H]9 ? Uncertainty in [He/H]9 44- 48 F5.2 10-5 [O/H] Abundance [O/H]*10^5^, using G3, G4, G26 (1) 51- 54 F4.2 10-5 e_[O/H] Uncertainty in [O/H] 57- 60 F4.2 10-6 [N/H] ? Abundance [N/H]*10^6^, using G6 (1) 63- 66 F4.2 10-6 e_[N/H] ? Uncertainty in [N/H] 69- 73 F5.2 10-6 [Ne/H] ? Abundance [Ne/H]*10^6^, using G29 (1) 76- 79 F4.2 10-6 e_[Ne/H] ? Uncertainty in [Ne/H] 82- 85 F4.2 10-6 [S/H] ? Abundance [S/H]*10^6^, using G30 (1) 88- 91 F4.2 10-6 e_[S/H] ? Uncertainty in [S/H] 94- 97 F4.2 10-7 [Ar/H] ? Abundance [Ar/H]*10^7^, using G10, G11, G31, G32 (1) 101-104 F4.2 10-7 e_[Ar/H] ? Uncertainty in [Ar/H]
Note (1): G1-G32 are ionization correction factors (ICF) expression of table3 in Holovatyy and Melekh, Kinematica Fiz. Nebesnykh Tel (2002) (in press).

(End) Veta Avedisova [INASAN] 01-Apr-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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