![]() Because they are the likely progenitors of local spirals, we can conjecture how their properties are evolving. These rotating spiral disks are forming stars very rapidly, even doubling their stellar masses over the pastĦ Gyr, while most of their stars were formed a few Gyr earlier, which reveals a large gas supply. Using this methodology, we find that the fraction of undisturbed rotating spirals has increased by a factor ~2 during the past 6 Gyr, a much higher fraction than was found previously based on morphologies alone. Using our morphological classification scheme, 4/5 of the identified spirals are rotating disks, and more than 4/5 of identified peculiar galaxies show complex kinematics, while automatic classification methods such as concentration-asymmetry and GINI-M20 severely overestimate the fraction of relaxed disk galaxies. We divided our sample into spiral disks, peculiar objects, compact objects, and mergers. We used all the information provided by multi-band images, color maps, and 2D light fitting to assign a morphological class to each object. We aim at evaluating the evolution of rotating spirals robustly since, as well as at testing the different schemes for classifying galaxies morphologically. It is a representative sample of 52 galaxies with M stell from 1.5 to that possesses 3D resolved kinematics and HST deep imaging in at least two broad band filters. We present a first combined analysis of the morphological and dynamical properties for the intermediate-mass Galaxy Evolution Sequence (IMAGES) sample. IASF-INAF, via Bassini 15, 20133 Milano, Italy INAF, Osservatorio Astrofisico di Arcetri, Largo Enrico Fermi 5, 50125 Florence, Italy INAF – Osservatorio Astronomico di Bologna, via Ranzani 1, 40127 Bologna, Italyĭepartment of Physics, University of Calicut, Kerala 673635, India Stockholm Observatory, AlbaNova University Center, Stockholms Center for Physics, Astronomy and Biotechnology, Roslagstullsbacken 21, 10691 Stockholm, Sweden National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, PR China MPIA, Königstuhl 17, 69117 Heidelberg, GermanyĬentre de Recherche Astronomique de Lyon, 9 Avenue Charles Andr, 69561 Saint-Genis-Laval Cedex, France Laboratoire d'Astrophysique de Marseille, Observatoire Astronomique de Marseille-Provence, 2 Place Le Verrier, 13248 Marseille, France IFARHU-SENACYT, Technological University of Panama, 0819-07289 Panama, Rep. Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411007, India ![]() GEPI, Observatoire de Paris, CNRS, University Paris Diderot, 5 Place Jules Janssen, 92195 Meudon, France e-mail: Karl-Schwarzschild-Strasse 2, 85748 Garching bei München, Germany ![]() Astronomical objects: linking to databasesī.Including author names using non-Roman alphabets.Suggested resources for more tips on language editing in the sciences Punctuation and style concerns regarding equations, figures, tables, and footnotes
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