Know (better) your neighbour: New H I structures in Messier 33 unveiled by a multiple peak analysis of high-resolution 21-cm data
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Este ítem está publicado en
SF2A-2012: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics. Eds.: S. Boissier, 2012sf2a.conf..519C - SF2A-2012:Eds.: S. Boissier, P. de Laverny, N. Nardetto, R. Samadi, D. Valls-Gabaud and H. Wozniak, pp.519-522- Nice 5-8 juin 2012 France, 2012sf2a.conf..519C - SF2A-2012:Eds.: S. Boissier, P. de Laverny, N. Nardetto, R. Samadi, D. Valls-Gabaud and H. Wozniak, pp.519-522- Nice 5-8 juin 2012 France, 2012, Nice. 2012-12p. 519-522
Resumen en inglés
In our quest to constrain the dynamical and structural properties of Local Group spirals from high-quality interferometric data, we have performed a neutral hydrogen survey in the direction of Messier 33. Here we present ...Leer más >
In our quest to constrain the dynamical and structural properties of Local Group spirals from high-quality interferometric data, we have performed a neutral hydrogen survey in the direction of Messier 33. Here we present a few preliminary results from the survey and show the benefits of fitting the hi spectra by multiple peaks on constraining the structure of the Messier 33 disk. In particular we report on the discovery of new inner spiral-like and outer annular structures overlaying with the well-known main H I disk of Messier 33. Possible origins of the additional outer annular structure are presented.< Leer menos
Palabras clave en inglés
Galaxies: individual: M33
NGC 598
Galaxies: ISM
Galaxies: kinematics and dynamics
Galaxies: structure
Local Group
Techniques: imaging spectroscopy
Orígen
Importado de HalCentros de investigación