| Título: | First spectroscopic study of ionised gas emission lines in the extreme low surface brightness galaxy Malin 1 |
| Autores: | Junais, ; Boissier, S. ; Epinat, B. ; Amram, P. ; Madore, B.F. ; Boselli, A. ; Koda, J. ; Gil de Paz, Armando ; Muñoz Mateos, J.C. ; Chemin, L. |
| Tipo de documento: | texto impreso |
| Editorial: | EDP Sciencies, 2020-05-07 |
| Dimensiones: | application/pdf |
| Nota general: |
cc_by info:eu-repo/semantics/openAccess |
| Idiomas: | |
| Palabras clave: | Estado = Publicado , Materia = Ciencias: Física: Astrofísica , Tipo = Artículo |
| Resumen: |
Context. Malin 1 is the largest known low surface brightness (LSB) galaxy, the archetype of so-called giant LSB galaxies. The structure and origin of such galaxies are still poorly understood, especially because of the lack of high-resolution kinematics and spectroscopic data. Aims. We use emission lines from spectroscopic observations of Malin 1 aiming to bring new constraints on the internal dynamics and star formation history of Malin 1. Methods. We extracted a total of 16 spectra from different regions of Malin 1 and calculated the rotational velocities of these regions from the wavelength shifts and star formation rates from the observed H? emission line fluxes. We compared our data with existing data and models for Malin 1. Results. For the first time we present the inner rotation curve of Malin 1, characterised in the radial range r |
| En línea: | https://eprints.ucm.es/id/eprint/61312/1/gildepaz191libre%2BCC.pdf |
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