منابع مشابه
The ionized gas in the spiral galaxy NGC 3359
We combine Hα imaging and broad-band optical and NIR imaging over the face of the barred galaxy NGC 3359, obtained within the BARS program on the Canary Island telescopes. From the Hα image we have determined the positions, fluxes, and diameters of a total of 547 Hii regions, and computed their luminosity function, whose slope is within the range of those of morphologically similar galaxies fou...
متن کاملIonized Gas inside the dwarf irregular galaxy NGC 6822 1
We have studied the differences between the diffuse ionized gas (DIG) and the H ii regions along a slit position in the local dwarf irregular galaxy NGC 6822. The slit position passes through the two most prominent H ii regions: Hubble V and Hubble X. Important differences have been found in the excitation, ionization, and [N ii]λ6584Å/Hα and [S ii]λ6717Å/Hα line ratios between the DIG and the ...
متن کاملAtomic and Molecular Gas near NGC 3077 : The Making of a New Dwarf Galaxy ? Fabian
Using the IRAM 30m radio telescope we have mapped the tidal arm feature south–east of NGC3077 where we recently detected molecular gas in the CO (J=1→0) and (2→1) transitions. We find that the molecular gas is much more extended than previously thought (several kpc). The CO emission can be separated into at least 3 distinct complexes with equivalent radii between 250 pc and 700 pc – the newly d...
متن کاملMolecular Gas and Star Formation in NGC 3077
We present high resolution (∼ 2.5) CO(1-0) and CO(2-1) images of the central kiloparsec of NGC 3077 made with the Owens Valley Millimeter Array. CO emission is distributed in three major complexes which resolve into at least seven GMCs. Two complexes are associated with the central starburst. A third, more distant complex is not associated with strong star formation. The GMCs are ∼ 70 pc in siz...
متن کاملThe circumnuclear ring of ionized gas in NGC 3593 ?
We present the results of narrow-band Hα+[N II] imaging of the early-type spiral NGC 3593 in combination with a study of the flux radial profiles of the [N II] (λλ 654.80, 658.34 nm), Hα, and [S II] (λλ 671.65, 673.08 nm) emission lines along its major axis. The galaxy is known to contain two counterrotating stellar discs of different size and luminosity. We find that the Hα emission mainly der...
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ژورنال
عنوان ژورنال: Astrophysical Bulletin
سال: 2020
ISSN: 1990-3413,1990-3421
DOI: 10.1134/s1990341320040136