Spatially Extended NaI D Resonant Emission and Absorption in the Galactic Wind of the Nearby Infrared-Luminous Quasar F05189-2524

作者: David S. N. Rupke , Sylvain Veilleux

DOI: 10.1088/0004-637X/801/2/126

关键词: GalaxySurface brightnessQuasarInfraredLuminous infrared galaxyPhysicsAstronomyAbsorption spectroscopyAstrophysicsRedshiftEmission spectrum

摘要: Emission from metal resonant lines has recently emerged as a potentially powerful probe of the structure galactic winds at low and high redshift. In this work, we present only second example spatially resolved observations NaI D emission wind in nearby galaxy (and first 3D any redshift). F05189-2524, (z=0.043) ultra luminous infrared powered by quasar, was observed with integral field unit on Gemini Multi-Object Spectrograph (GMOS) North. absorption system traces dusty filaments near side an extended, AGN-driven (with projected velocities up to 2000 km/s). These (A_V < 4) N(H) 10^22 cm^-2) simultaneously obscure stellar continuum lines. The serve complementary wind; they are strongest regions foreground obscuration extend limits view (galactocentric radii 4 kpc). An azimuthally symmetric Sersic model extincted same screen reproduces line surface brightness distribution except inner wind, where some emission-line filling may occur. presence detectable F05189-2524 be due its rest wavelength D. data uniquely constrain current models cool gas benchmark for future models.

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