Astrofísicas: Galaxias espirales

  • Publicación
    Near-infrared mapping of spiral galaxies. I - The SB galaxy NGC 2841 - Annular structure in the young disc component
    NGC 2841 has been mapped in the J and K near-infrared bands out to some 10 kpc from its center. Maps and radial profiles in micron(J), micron(K) and J-K are...
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    Near-infrared mapping of spiral galaxies. II - NGC 2403 - Spiral structure in the old disk population
    Near-infrared maps in the J, H, and K bands, have been obtained for the nearby flocculent spiral NGC 2403, with a linear resolution of 900 pc. Radially and...
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    New windows to the universe; Proceedings of the Eleventh European Regional Astronomy Meeting, Universidad de la Laguna, Spain, July 3-8, 1989. Part II
    Recent observational and theoretical investigations of the sun and sunlike stars and of galactic structure and evolution are discussed in reviews and reports...
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    NGC 2403: a flocculent galaxy with two principal centres of star formation.
    The authors have mapped the nearby flocculent spiral galaxy in the visible U, B and V bands, as well as in the near infrared J, H and K bands, with a linear...
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    NGC 6946: kinematics of the starburst in the circum-nuclear zone.
    Using spectroscopic observations at relatively high resolution (Δλ ≡ 0.35 Å) in the region within 30 arcseconds of the nucleus of NGC 6946 the authors have...
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    NGC 7479, a spiral galaxy with leading arms?
    Not Available
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    Observational evidence for triaxiality, and for relatively recent star formation in the bulge of NGC 4736
    CCD maps are presented of the inner 1.4 kpc of NGC 4736 in the B, V, R, I and Z bands, along with an ellipticity analysis of these, in which the ellipticities...
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    Observational evidence for triggering in spirals.
    The authors discuss recent evidence that the massive star formation in the grand-design spiral galaxy M51 is triggered. Studying the symmetry of the Hα...
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    Observations of outflow and its consequences in circum-nuclear zones of spirals
    The radial hydrogen (H2 + HI) distribution in spirals takes two forms: with a density peak at the nucleus or with a circular 'hole' around it. Spectral and...