A high-velocity H I stream interacting with the galactic disc
نویسندگان
چکیده
منابع مشابه
DISTANCES TO GALACTIC HIGH-VELOCITY CLOUDS. I. COHEN STREAM, COMPLEX GCP, CLOUD g1
The highand intermediate-velocity interstellar clouds (HVCs/IVCs) are tracers of energetic processes in and around the Milky Way. Clouds with near-solar metallicity about 1 kpc above the disk trace the circulation of material between disk and halo (the Galactic fountain). TheMagellanic Stream consists of gas tidally extracted from the SMC, tracing the dark matter potential of the Milky Way. Sev...
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The maximum entropy approach is proposed to describe the local structures of the velocity distribution, which are collected through its sample moments. The method is used with several samples from the HIPPARCOS and Geneva-Copenhagen survey catalogues. For the large-scale distribution, the phase density function may be obtained by fitting moments up to sixth order as a product of two exponential...
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We present a map of the area near the Local Group dwarf galaxy LGS 3, centered on an H i cloud ′ ′ 93 # 93 30 away from the galaxy. Previous authors associated this cloud with LGS 3 but relied on observations made with a 36 beam. Our high-resolution (3 .4), wide-field Arecibo observations of the region reveal that the H i cloud is distinct from the galaxy and suggest an interaction between the ...
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Two compact H I clouds which seem to belong to the Ophiuchus superbubble were studied at ∼ 30′′ resolution using the Very Large Array (VLA) in C and D configurations together with the Green Bank Telescope (GBT) providing the short-spacing flux. Here we present preliminary results of the data analysis.
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The observed stellar velocity dispersions of galactic discs show that the maximum rotation of a disc is on average 63%of the observedmaximumrotation. This criterion can, however, not be applied to small or low surface brightness (LSB) galaxies because such systems show, in general, a continuously rising rotation curve until the outermost measured radial position. That is why a general relation ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1981
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/196.4.835