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26 papers · 1 filter
What determines the density structure of molecular clouds ? A case study of Orion B with Herschel
N. Schneider, Ph. Andre, V. Konyves +19
A key parameter to the description of all star formation processes is the density structure of the gas. In this letter, we make use of probability distribution functions (PDFs) of…
An eclipsing binary distance to the Large Magellanic Cloud accurate to 2 per cent
G. Pietrzyński, D. Graczyk, W. Gieren +25
In the era of precision cosmology it is essential to determine the Hubble Constant with an accuracy of 3% or better. Currently, its uncertainty is dominated by the uncertainty in t…
Globular clusters seen by Gaia
E. Pancino, M. Bellazzini, S. Marinoni
We present a simulation of twelve globular clusters with different concentration, distance, and background population, whose properties are transformed into Gaia observables with t…
Mid-J CO Emission in Nearby Seyfert Galaxies
M. Pereira-Santaella, L. Spinoglio, G. Busquet +10
We study for the first time the complete sub-millimeter spectra (450 GHz to 1550 GHz) of a sample of nearby active galaxies observed with the SPIRE Fourier Transform Spectrometer (…
The horizontal branch morphology of M31 Globular Clusters
M. Bellazzini, A. Buzzoni, C. Cacciari +4
We present the results of a first global analysis of the Horizontal Branch morphology of Globular Clusters in the nearby spiral M31, based on their Color Magnitude Diagrams.
The strange case of NGC2419: stellar populations, chemical composition, dynamics
M. Bellazzini, A. Mucciarelli, R. A. Ibata +10
A few years ago we started an observational campaign aimed at the thorough study of the massive and remote globular cluster NGC2419. We have used the collected data, e.g., to test…