Photometry and dynamics of the minor mergers AM 1228-260 and AM 2058-381

Photometry and dynamics of the minor mergers AM 1228-260 and AM 2058-381

We investigate interaction effects on the dynamics and morphology of the galaxy pairs AM 2058-381 and AM 1228-260. This work is based on r ′ images and long-slit spectra obtained with the Gemini Multi-Object Spectrograph at the Gemini South Telescope. The luminosity ratio between the main (AM 2058A)...

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Veröffentlicht in:Monthly notices of the Royal Astronomical Society 2015-08, Vol.451 (3), p.2278-2294
Hauptverfasser: Hernandez-Jimenez, J. A., Pastoriza, M. G., Bonatto, C., Rodrigues, I., Krabbe, A. C., Winge, Cláudia
Format: Artikel
Sprache:eng
Schlagworte:
Dynamics
Halos
Irregularities
Kinematics
Luminosity
Mathematical models
Photometry
Space telescopes
Spectrum analysis
Spirals
Stars & galaxies
Tumbling
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Beschreibung
Zusammenfassung:We investigate interaction effects on the dynamics and morphology of the galaxy pairs AM 2058-381 and AM 1228-260. This work is based on r ′ images and long-slit spectra obtained with the Gemini Multi-Object Spectrograph at the Gemini South Telescope. The luminosity ratio between the main (AM 2058A) and secondary (AM 2058B) components of the first pair is a factor of ∼ 5, while for the other pair, the main (AM 1228A) component is 20 times more luminous than the secondary (AM 1228B). The four galaxies have pseudo-bulges, with a Sérsic index n 
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/stv1069