منابع مشابه
Dense Molecular Gas Tracers in the Outflow of the Starburst Galaxy NGC 253
We present a detailed study of a molecular outflow feature in the nearby starburst galaxy NGC 253 using ALMA. We find that this feature is clearly associated with the edge of NGC 253ʼs prominent ionized outflow, has a projected length of ∼300 pc, with a width of ∼50 pc, and a velocity dispersion of ∼40 km s, which isconsistent with an ejection from the disk about 1 Myr ago. The kinematics of t...
متن کاملMolecular gas in NGC 6946
We present imaging of molecular gas emission in the star-forming spiral galaxy NGC 6946. Our 12 CO(1-0) and 12 CO(3-2) images, made at 22 ′′ resolution with the IRAM 30-m and the Heinrich Hertz 10-m radio telescopes, are the most extensive observations of molecular gas in this galaxy and are among the most extensive observations of molecular gas in any spiral galaxy. The 12 CO(1-0) emission sho...
متن کاملThe Nuclear Starburst in Ngc 253
We have obtained long-slit spectra of NGC 253 in the J, H, K, and N bands, broadband images in the J, H, and K s bands, narrowband images centered at the wavelengths of Brγ and H 2 (1,0)S(1), and imaging spectroscopy centered on [Ne II](12.8µm). We have subtracted a composite stellar spectrum from the galaxy spectrum to measure faint emission lines which otherwise would be buried in the complic...
متن کاملThe Collimated Wind in Ngc 253
Received ; accepted – 2 – ABSTRACT Near-infrared Fabry-Perot imaging has revealed H 2 emission extended to about 130 pc from the disk of NGC 253. It is closely related to the hot plasma observed in soft X-rays: filamentary H 2 features are found at the edges of the hot plasma. These are the places of direct interaction between a superwind and its surrounding molecular gas. We suggest that the f...
متن کاملMolecular gas and dust in NGC 4550
We report the detection of 1 × 10 M⊙ of molecular gas in the central region of the S0/E7 galaxy NGC4550, inferred from observations of CO(1–0) emission. Dust is detected in HST WFPC2 images and found to be asymmetrically distributed around the nucleus, only extending to a galactocentric distance of 7 (600 pc). The shape of the CO emission profile is consistent with a molecular gas distribution ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1991
ISSN: 0004-637X,1538-4357
DOI: 10.1086/170597