J/A+AS/128/545 NGC 4736 HII regions fluxes (Rodrigues+ 1998)
Physical properties of the ionized gas and brightness distribution in NGC 4736
Rodrigues I., Dottori H., Cepa J., Vilchez J.
<Astron. Astrophys. Suppl. Ser. 128, 545 (1998)>
=1998A&AS..128..545R 1998A&AS..128..545R (SIMBAD/NED BibCode)
ADC_Keywords: H II regions ; Spectroscopy
Keywords: galaxies: individual: NGC 4736 - galaxies: abundances -
galaxies: ISM - galaxies: spiral - galaxies: structure -
Description:
Table 3 gives a catalog of HII region positions, diameters and
absolute emission line logarithmic fluxes for NGC 4736.
Table 4 gives a catalog of continua logarithmic fluxes adjacent to
[OII], Hβ, [OIII], Hα, [SII] and [SIII] emission lines of
NGC 4736 HII regions.
Objects:
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RA (2000) DE Designation(s)
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12 50.9 +41 07 NGC 4736 = M 94
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 87 90 HII region positions, diameters and absolute
emission line logarithmic fluxes (see text).
table4.dat 46 90 Continua logarithmic fluxes of NGC 4736
HII regions
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See also:
VII/20 : Catalogue of HII Regions (Sharpless 1959)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Reg HII Region identification number
4- 5 I2 --- HKNGC4736 ? Hodge & Kennicut's (1983AJ.....88..296H 1983AJ.....88..296H)
identification number (HK NGC 4736 NN)
7- 12 F6.2 arcsec Xpos E-W distance from the NGC 4736 nucleus
14- 19 F6.2 arcsec Ypos N-S distance from the NGC 4736 nucleus
21- 24 F4.2 arcsec D100 ? HII region halo diameter
26- 31 F6.2 mW/m2 F[OII] ? [OII]3727+3729 flux
33- 38 F6.2 mW/m2 FHbeta ? Hβ flux
40- 45 F6.2 mW/m2 F[OIII] ? [OIII]5007 flux
47- 52 F6.2 mW/m2 FHalpha ? H{alpha flux
54- 59 F6.2 mW/m2 F[SII] ? [SII]6716+6730 flux
61- 66 F6.2 mW/m2 F[SIII] ? [SIII]9070 flux
68- 71 F4.2 mag C(Hbeta) ? Hβ internal extinction
73- 79 F7.2 0.1nm WHalpha Hα equivalent width
81- 84 F4.1 10-7W LHbeta ? Hβ luminosity
86- 87 A2 --- Notes [a b] See Note (1)
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Note (1): a: Neither underlying Balmer absorption nor internal reddening
corrections were applied.
b: Halo diameter not resolved
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Reg HII Region identification number
4- 9 F6.2 10-2W/m2/nm [OII]-C Emission line [OII]-continuum intensity
11- 16 F6.2 10-2W/m2/nm Hbeta-C Emission line Hβ-continuum intensity
18- 23 F6.2 10-2W/m2/nm [OIII]-C Emission line [OIII]-continuum intensity
25- 30 F6.2 10-2W/m2/nm Halpha-C Emission line Hα-continuum intensity
32- 37 F6.2 10-2W/m2/nm [SII]-C Emission line [SII]-continuum intensity
39- 44 F6.2 10-2W/m2/nm [SIII]-C Emission line [SIII]-continuum intensity
46 A1 --- Notes [a] See Note (1)
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Note (1): a: Neither underlying Balmer absorption nor internal reddening
corrections were applied.
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Acknowledgements: I. Rodrigues
(End) Patricia Bauer [CDS] 04-Sep-1997