J/A+A/466/905 HII regions in NGC 628 (Fathi+, 2007)
Evolution of structure in late-type spiral galaxies.
I: Ionized gas kinematics in NGC 628.
Fathi K., Beckman J.E., Zurita A., Relano M., Knapen J.H., Daigle O.,
Hernandez O., Carignan C.
<Astron. Astrophys. 466, 905 (2007)>
=2007A&A...466..905F 2007A&A...466..905F
ADC_Keywords: Galaxies, nearby ; H II regions ; Photometry, H-alpha
Keywords: galaxies: spiral - galaxies: structure -
galaxies: kinematics and dynamics - galaxies: ISM -
galaxies: individual NGC 628
Abstract:
Properties of HII region populations in spiral galaxies provide
important information about the physics of star formation as well as
regional turbulent motions in the interstellar medium. We present a
set of 376 photometrically calibrated HII regions in the nearby
late-type spiral galaxy NGC 628. We have studies the mean velocity and
velocity dispersion for the H-alpha-emitting gas in NGC 628 and found
with widely distributed star formation in the disc plane. The H-alpha
emission from the HII regions dominates any emission from the diffuse
component in this galaxy.
Description:
Complete list of the 376 photometrically calibrated individual HII
regions in the spiral galaxy NGC 628.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table.dat 48 376 HII region catalogue for NGC 628
--------------------------------------------------------------------------------
See also:
J/A+AS/119/499 : NGC 628 and companions photometric distances (Sharina+ 1996)
J/AJ/120/1306 : NGC 628 H II regions (Lelievre+, 2000)
Byte-by-byte Description of file: table.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- Seq HII region identifier
6 I1 h RAh Right ascension (J2000)
8- 9 I2 min RAm Right ascension (J2000)
11- 16 F6.3 s RAs Right ascension (J2000)
19 A1 --- DE- Declination sign (J2000)
20- 21 I2 deg DEd Declination (J2000)
23- 24 I2 arcmin DEm Declination (J2000)
26- 31 F6.3 arcsec DEs Declination (J2000)
34- 40 F7.4 [W] logL Log of total luminosity of HII region
43- 48 F6.3 arcsec Rad Radius of HII region
--------------------------------------------------------------------------------
Acknowledgements:
Kambiz Fathi, kambiz(at)astro.su.se
(End) Patricia Vannier [CDS] 01-Feb-2007