Large scale structure of the ionized gas in the magellanic clouds

Abstract

view Abstract Citations (123) References (61) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Large Scale Structure of the Ionized Gas in the Magellanic Clouds Kennicutt, Robert C., Jr. ; Bresolin, Fabio ; Bomans, Dominik J. ; Bothun, Gregory D. ; Thompson, Ian B. Abstract Calibrated Hα CCD images taken With the "Parking Lot Camera" are used to investigate the large scale properties of the ionized gas in the Magellanic Clouds. The integrated Hα luminosity, star formation, and the large-scale diffuse emission are studied and compared with other galaxies. The diffuse gas component accounts for 30%-40% of the total Hα emission in both galaxies. The integrated star formation rates and the fraction of diffuse emission are typical for Magellanic irregular galaxies. The Hα maps are used to derive a set of physical parameters for the known supergiant shells in the LMC and SMC. The Hα emission distribution have also been compared to the distribution of HI column density. Evidence for a star formation threshold is discussed. Publication: The Astronomical Journal Pub Date: February 1995 DOI: 10.1086/117304 Bibcode: 1995AJ....109..594K Keywords: Diffuse Radiation; Galactic Structure; H Alpha Line; Ionized Gases; Luminosity; Magellanic Clouds; Star Formation; Astronomical Maps; Charge Coupled Devices; Density Distribution; Hydrogen; Irregular Galaxies; Star Formation Rate; Astronomy; MAGELLANIC CLOUDS; ISM: STRUCTURE full text sources ADS | data products SIMBAD (25) NED (2)