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J/A+A/430/911       Expansive components in HII regions      (Relano+, 2005)

Expansive components in HII regions. Relano M., Beckman J.E. <Astron. Astrophys., 430, 911-926 (2005)> =2005A&A...430..911R
ADC_Keywords: H II regions ; Interferometry ; Line Profiles Keywords: ISM: H II regions - ISM: kinematics and dynamics - galaxies: individual: NGC 1530 - galaxies: individual: NGC 6951 - galaxies: individual: NGC 3359 - galaxies: ISM Abstract: We study the presence of low intensity high velocity components, which we have termed wing features in the integrated Halpha emission line profiles of the HII region populations of the spiral barred galaxies NGC 1530, NGC 3359 and NGC 6951. We find that more than a third of the HII region line profiles in each galaxy show these components. Description: The galaxies NGC 3359, NGC 6951 and NGC 1530 were observed with the TAURUS-II Fabry-Perot interferometer at the 4.2m William Herschel Telescope (WHT) on La Palma. The data reduction for each galaxy is described respectively in Rozas et al. (2000A&A...354..823R, Cat. J/A+A/354/823>) for NGC 3359, in Rozas et al. (2002A&A...386...42R) for NGC 6951 and in Zurita et al. (2004A&A...413...73Z) for NGC 1530. Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------------- 04 23 27.0 +75 17 45 NGC 1530 = UGC 3013 20 37 14.4 +66 06 20 NGC 6951 = UGC 11604 10 46 36.6 +63 13 25 NGC 3359 = UGC 5873 ---------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tables.dat 79 56 Parameters of the wing features of the selected line profile that best defines the wing components from the set of spectra taken with different apertures for each region in NGC 1530 NGC 6951 and NGC 3359. notes.dat 80 40 Individual notes
See also: J/A+A/354/823 : HII region catalogue of NGC 3359 (Rozas+, 2000) Byte-by-byte Description of file: tables.dat
Bytes Format Units Label Explanations
1- 12 A12 --- [RBZ2005] Region number from the catalogue of Relano et al. (2005A&A...431..235R), NGC NNNN NNN 13 A1 --- n_[RBZ2005] [*] indicates a note in notes.dat file 15- 19 F5.2 [10-7W] logLHa logarithmic luminosity taken from the catalogue (2005A&A...431..235R) 21- 23 I3 pc Apr1 Aperture of the selected line profile (2) 24 A1 --- --- [x] 25- 27 I3 pc Apr2 Aperture of the selected line profile (2) 29- 33 F5.2 --- S/N Mean S/N of both wing components 35- 39 F5.2 % EMt Emission measure of the red wing component as a fraction of the total EM of the region 41- 44 F4.2 % e_EMt ?=- rms uncertainty on EMt (3) 46- 50 F5.2 % EMb Emission measure of the blue wing component as a fraction of the total EM of the region 52- 55 F4.2 % e_EMb ?=- rms uncertainty on EMb (3) 57- 61 F5.2 km/s DVt Velocity separation between the central peak and the red wing component 63- 67 F5.2 km/s e_DVt ?=- rms uncertainty on DVt (4) 69- 73 F5.2 km/s DVb Velocity separation between the central peak and the blue wing component 75- 79 F5.2 km/s e_DVb ?=- rms uncertainty on DVb (4)
Note (2): For NGC 1530, the pixel size is 0.29", which gives a pixel scale of 51.4 pc/pix at a galaxy distance of 36.6Mpc (NGC, VII/118). For NGC 6951, for a pixel size of 0.58" the pixel scale is 67.8pc/pix at a distance galaxy of 24.1 Mpc (NGC, VII/118) For NGC 3359, for a pixel size of 0.56" the pixel scale is 36.4pc/pix at a galaxy distance of 13.4 Mpc (RC3, VII/155). Note (3): Standard deviation of the fractional emission measures of the Gaussian components fitted to the set of line profiles with different apertures taken for each region. Note (4): Standard deviation of the velocity separation for the set of line profiles with different apertures extracted for each region.
Byte-by-byte Description of file: notes.dat
Bytes Format Units Label Explanations
1- 12 A12 --- [RBZ2005] Region designation 14- 80 A67 --- Note Text of the note
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 09-Mar-2006
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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