Search results for "Dust lane"

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Gaia-ESO Survey: Gas dynamics in the Carina nebula through optical emission lines

2016

Aims. We present observations from the Gaia-ESO Survey in the lines of Hα, [N II], [S II], and He I of nebular emission in the central part of the Carina nebula. Methods. We investigate the properties of the two already known kinematic components (approaching and receding), which account for the bulk of emission. Moreover, we investigate the features of the much less known low-intensity high-velocity (absolute RV >50 km s) gas emission. Results. We show that gas giving rise to Hα and He I emission is dynamically well correlated with but not identical to gas seen through forbidden-line emission. Gas temperatures are derived from line-width ratios, and densities from [S II] doublet ratios. Th…

HII regionsastro-ph.SRastro-ph.GAAstrophysics::High Energy Astrophysical PhenomenaShell (structure)FluxFOS: Physical sciencesAstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciencesISM: individual objects: Carina nebula; ISM: general ; HII regionsIonization0103 physical sciencesAstrophysics::Solar and Stellar AstrophysicsHII regionEmission spectrum010303 astronomy & astrophysicsISM: individual objects: Carina nebulaQCSolar and Stellar Astrophysics (astro-ph.SR)Astrophysics::Galaxy AstrophysicsQBISM: generalAstronomía y AstrofísicaPhysicsNebulageneral [ISM]010308 nuclear & particles physicsindividual objects: Carina nebula [ISM]Astronomy and AstrophysicsGas dynamicsAstronomy and AstrophysicAstrophysics - Astrophysics of GalaxiesDust laneCore (optical fiber)Astrophysics - Solar and Stellar Astrophysics13. Climate actionSpace and Planetary ScienceAstrophysics of Galaxies (astro-ph.GA)HII regions; ISM: general; ISM: individual objects: Carina nebula; Astronomy and Astrophysics; Space and Planetary Science
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