Results 51 to 60 of about 5,654 (160)

Bird Homogenization at regional scale (Umbria, central Italy): a lack of evidence for a change in the 2001-2014 period

Avocetta, 2016
The decline of stenoecious species and the development of euryoecious species are causing a flattening of communities, which gradually lose their peculiar characteristics ending up being more and more similar among themselves and causing a general loss ...
Francesco Velatta, Giuseppina Lombardi, Umberto Sergiacomi   +2 more
doaj   +1 more source

Ultra-extreme high-frequency-peaked BL Lacs: A potential population of MeV synchrotron blazars

Astronomy & Astrophysics
We investigate the potential existence of a new population of BL Lacs, called ultra-extreme high-energy-peaked BL Lacs (UEHBLs), whose synchrotron emission component peaks in the MeV band, extending the blazar sequence beyond its current limit.
Sciaccaluga A., Tavecchio F., Sbarrato T., Bonnoli G.   +3 more
doaj   +1 more source

The Energy Space Density (ESD) Distribution: A New Approach to Reveal the Degree of Fracturing of the Crust in the Etna Region (Italy)

The Seismic Record
The traditional method of representing the seismicity in a region involves plotting earthquakes of various magnitudes on a map. Energy release, however, offers a different perspective for understanding seismicity, especially in volcanic areas where ...
Elisabetta Giampiccolo, Tiziana Tuvè, Francesca Bianco, Edoardo Del Pezzo   +3 more
doaj   +1 more source

Osservatorio Erpetologico Italiano

Acta Herpetologica, 2009

doaj   +3 more sources

Spatially Resolved Comparison of SFRs from UV and Hα in GASP Gas-stripped Galaxies

The Astrophysical Journal
Star formation rates (SFRs) in galaxies offer a view of various physical processes across them, and are measured using various tracers, such as H α and ultraviolet (UV).
Neven Tomičić, Ariel Werle, Benedetta Vulcani, Alessandro Ignesti, Alessia Moretti, Anna Wolter, Koshy George, Bianca M. Poggianti, Marco Gullieuszik   +8 more
doaj   +1 more source

Evidence for multiple crossings and stripping of Gaia-Enceladus/Sausage across the Milky Way

Astronomy & Astrophysics
Context. The accretion of Gaia-Enceladus/Sausage (GES) onto the Milky Way (MW) is one of the most prominent features of the Galactic halo revealed by the combination of the Gaia satellite and large spectroscopic surveys.
Berni L., Palla M., Magrini L., Spina L.
doaj   +1 more source

Spatially resolved stellar-to-total dynamical mass relation

Astronomy & Astrophysics
Context. In our standard cosmological model, galaxy assembly is inherently linked to the hierarchical growth of dark matter halos, which provide the gravitational framework in which highly complex baryonic processes unfold.
Scholz-Díaz L., Gallazzi A. R., Zibetti S., Mattolini D.   +3 more
doaj   +1 more source

Osservatorio Erpetologico Italiano

Acta Herpetologica, 2006
Osservatorio Erpetologico Italiano
doaj   +1 more source

The GAPS programme at TNG

Astronomy & Astrophysics
Context. The transition regime between giant planets (GPs) and brown dwarfs (BDs) is still an open subject of study in exoplanetary science. A complete understanding of the population of long-period GPs and BDs would be pivotal for improving our ...
Pinamonti M., Sozzetti A., Barbato D., Desidera S., Biazzo K., Bonomo A. S., Lanza A. F., Naponiello L., Affer L., Anche R. M., Andreuzzi G., Basilicata M., Brinjikji M., Brogi M., Cabona L., Carolo E., Colombo S., Damasso M., D’Arpa M., Di Filippo S., Harutyunyan A., Hom J., Mancini L., Mantovan G., Nardiello D., Santhakumari K. K. R., Zingales T.   +26 more
doaj   +1 more source

VST-SMASH: VST Survey of Mass Assembly and Structural Hierarchy

Astronomy & Astrophysics
Context. Understanding the formation and evolution of late-type galaxies requires deep imaging for tracing the faintest stellar components in their outskirts (i.e. accreted material, diffuse halos, and tidal streams).
Ragusa R., Tortora C., Hunt L., Spavone M., Baes M., Abdurro’uf, Gatto M., Annibali F., Mercurio A., Bellucco N., Unni A., Schinnerer E.   +11 more
doaj   +1 more source