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Bologna
April 25, 2017, 10:34 am
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Signs of ancient interactions in isolated dwarf galaxies

The stellar body of Sextans A

In the currently accepted paradigm for galaxy formation, present-day dwarf galaxies are the leftover of a larger population of small galaxies that was cannibalised during the hierarchical build-up of larger systems like the Milky Way.

Today we observe that dwarf satellites in the surroundings of large galaxies tipically have elliptical shape, are devoid of gas

…→ Read More: Signs of ancient interactions in isolated dwarf galaxies

The first scientific results of the Gaia-ESO Survey are published on A&A

Gaia-ESO Survey: stars observed in the open cluster Tr20 using FLAMES@VLT (orange for GIRAFFE, blue for UVES spectra).

Gaia-ESO Survey: stars observed in the open cluster Tr20 using FLAMES@VLT (orange for GIRAFFE, blue for UVES spectra – figure from Donati et al. 2014).

The first scientific results of the Gaia-ESO Survey, based on the analysis of data obtained during six months (Jan-Jun 2012) are beginning to appear on refereed journals:

The Gaia-ESO

…→ Read More: The first scientific results of the Gaia-ESO Survey are published on A&A