SIMBAD references

2020ApJ...903...35H - Astrophys. J., 903, 35-35 (2020/November-1)

A 60 kpc Galactic wind cone in NGC 3079.

HODGES-KLUCK E.J., YUKITA M., TANNER R., PTAK A.F., BREGMAN J.N. and LI J.-T.

Abstract (from CDS):

Galactic winds are associated with intense star formation and active galactic nuclei. Depending on their formation mechanism and velocity, they may remove a significant fraction of gas from their host galaxies, thus suppressing star formation, enriching the intergalactic medium, and shaping the circumgalactic gas. However, the long-term evolution of these winds remains mostly unknown. We report the detection of a wind from NGC 3079 to at least 60 kpc from the galaxy. We detect the wind in far-ultraviolet (FUV) line emission to 60 kpc (as inferred from the broad FUV filter in the Galaxy Evolution Explorer) and X-rays to at least 30 kpc. The morphology, luminosities, temperatures, and densities indicate that the emission comes from shocked material, and the O/Fe ratio implies that the X-ray-emitting gas is enriched by Type II supernovae. If so, the speed inferred from simple shock models is about 500 km s–1, which is sufficient to escape the galaxy. However, the inferred kinetic energy in the wind from visible components is substantially smaller than canonical hot superwind models.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Galactic winds - Starburst galaxies - Late-type galaxies

Status at CDS : Examining the need for a new acronym.

Simbad objects: 12

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2021.01.18-18:55:12

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