Zobrazeno 1 - 10
of 236
pro vyhledávání: '"Galletta, G."'
We want to get insight into the nature, i.e. the formation mechanism and the evolution, of UGC 7639, a dwarf galaxy in the Canes Venatici I Cloud (CVnIC). We used archival GALEX (FUV and NUV) and SDSS images, as well as Hyperleda and NED databases, t
Externí odkaz:
http://arxiv.org/abs/1507.02057
With the aim of investigating galaxy evolution in nearby galaxy groups, we analysed the spectral energy distribution of 24 galaxies, members of two groups in the Leo cloud, USGC U268 and USGC U376. We estimated the ages and stellar masses of the gala
Externí odkaz:
http://arxiv.org/abs/1309.5031
We are investigating the co-evolution of galaxies within groups combining multi-wavelength photometric and 2D kinematical observations. Here we focus on S0s showing star formation in ring/arm-like structures. We use smooth particle hydrodynamical sim
Externí odkaz:
http://arxiv.org/abs/1306.0777
Autor:
Marino, A., Plana, H., Rampazzo, R., Bianchi, L., Rosado, M., Bettoni, D., Galletta, G., Mazzei, P., Buson, L., Ambrocio-Cruz, P., Gabbasov, R. F.
We present the photometric and kinematic characterization of two groups, USGC U268 and USGC U376 located in different regions of the Leo cloud. U268, composed of 10 catalogued members and 11 new added members, has a small fraction (~24%) of early-typ
Externí odkaz:
http://arxiv.org/abs/1209.4278
We present a detailed photometric study of the peculiar double ringed galaxy ESO474-G26. Near-Infrared (NIR) and optical data have been used, with the main goal to constrain the formation history of ESO474-G26. NIR photometry is fundamental in this k
Externí odkaz:
http://arxiv.org/abs/1207.6559
The NGC 1023 group is one of the most studied nearby groups. We want to give an insight into the evolution of its innermost region by means of ultraviolet observations and proper models. We used the FUV and NUV GALEX archival data as well as a large
Externí odkaz:
http://arxiv.org/abs/1204.3472
We investigate the NGC 3933 poor galaxy association, that contains NGC 3934, which is classified as a polar-ring galaxy. The multi-band photometric analysis of NGC 3934 allows us to investigate the nature of this galaxy and to re-define the NGC 3933
Externí odkaz:
http://arxiv.org/abs/1108.5879
We present the biological results of some experiments performed in the Padua simulators of planetary environments, named LISA, used to study the limit of bacterial life on the planet Mars. The survival of Bacillus strains for some hours in Martian en
Externí odkaz:
http://arxiv.org/abs/0910.4830
Autor:
Marino, A., Iodice, E., Tantalo, R., Piovan, L., Bettoni, D., Buson, L. M., Chiosi, C., Galletta, G., Rampazzo, R., Rich, R. M.
Systems of shells and polar rings in early-type galaxies are considered "bona fide" tracers of mass accretion and/or mergers. Their high frequency in low density environments suggests that such episodes could drive the evolution of at least a fractio
Externí odkaz:
http://arxiv.org/abs/0909.4020
Autor:
Spavone, M., Iodice, E., Calvi, R., Bettoni, D., Galletta, G., Longo, G., Mazzei, P., Minervini, G.
In this paper we present a detailed study of the peculiar early-type galaxy NGC1947. The main goal of this work is to constrain the dynamical status and the formation history of NGC1947 by comparing the observed properties with the predictions derive
Externí odkaz:
http://arxiv.org/abs/0811.1754