Statistics and properties of HII regions in NGC 6814 J/AJ/106/56 J/AJ/106/56 HII regions in NGC 6814 Statistics and properties of HII regions in NGC 6814 J H Knapen N Arnth-Jensen J Cepa J E Beckman Astron. J. 106 56 1993 1993AJ....106...56K Galaxies H II regions We present a new Halpha image of high quality of the grand-design galaxy NGC 6814, and describe statistical properties of the HII region population. We have determined positions, angular sizes, and calibrated fluxes of 735 individual HII regions.
HII regions. This table lists the 735 HII regions catalogued in the disk of the grand-design spiral galaxy NGC 6814, using a new H alpha image. The center is also included in the list. ID Identification number of the HII region. HII regions closely grouped in the galaxy have generally closely grouped numbers. --- dRA Right ascension offset from the nucleus. Not corrected for inclination of the galaxy. arcsec dDE Declination offset from the nucleus. arcsec Dist Deprojected distance from the center. An inclination angle of 20 degrees and a position angle of PA=167 degrees were used for the deprojection. arcsec DHII Diameter of the HII region arcsec log(LHII) HII region total integrated luminosity 10-7J/s THII Type assigment given to the HII region. See note number=1 C: center (not an HII region, but included for comparison) A: Arm HII region I: interarm O: outer HII region An outer HII region is defined as lying outside the area of the strong spiral arms, d>43 arcsec or 0.4 R25. --- Patricia Bauer CDS 1994Jul25AAS CD-ROM series, Volume 1, 1993 J_AJ_106_56.xml