7 papers
HST resolves stars in a tiny body falling on the dwarf galaxy DDO 68
F. Annibali, M. Bellazzini, M. Correnti +9
We present new Hubble Space Telescope (HST) imaging of a stream-like system associated with the dwarf galaxy DDO 68, located in the Lynx-Cancer Void at a distance of D12.65 M…
Connecting Young Star Clusters to CO Molecular Gas in NGC 7793 with ALMA-LEGUS
K. Grasha, D. Calzetti, L. Bittle +20
We present an investigation of the relationship between giant molecular cloud (GMC) properties and the associated stellar clusters in the nearby flocculent galaxy NGC 7793. We comb…
Search For Star Cluster Age Gradients Across Spiral Arms of Three LEGUS Disk Galaxies
F. Shabani, E. K. Grebel, A. Pasquali +20
One of the main theories for explaining the formation of spiral arms in galaxies is the stationary density wave theory. This theory predicts the existence of an age gradient across…
Star Formation Histories of the LEGUS dwarf galaxies. II. Spatially resolved star formation history of the Magellanic irregular NGC 4449
Elena Sacchi, Michele Cignoni, Alessandra Aloisi +16
We present a detailed study of the Magellanic irregular galaxy NGC 4449 based on both archival and new photometric data from the Legacy Extragalactic UV Survey, obtained with the H…
Extinction Maps and Dust-to-Gas Ratios in Nearby Galaxies with LEGUS
L. Kahre, R. A. Walterbos, H. Kim +44
We present a study of the dust-to-gas ratios in five nearby galaxies NGC 628 (M74), NGC 6503, NGC 7793, UGC 5139 (Holmberg I), and UGC 4305 (Holmberg II). Using Hubble Space Telesc…
Star Formation Histories of the LEGUS Dwarf Galaxies (I): recent History of NGC1705, NGC4449 and Holmberg II
M. Cignoni, E. Sacchi, A. Aloisi +19
We use HST observations from the Legacy Extragalactic UV Survey to reconstruct the recent star formation histories (SFHs) of three actively star-forming dwarf galaxies, NGC4449, Ho…