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American Astronomical Society, Astrophysical Journal, 2(811), p. 75, 2015

DOI: 10.1088/0004-637x/811/2/75

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The Brightest Young Star Clusters in Ngc 5253

Journal article published in 2015 by D. Calzetti ORCID, K. E. Johnson, A. Adamo, J. S. Gallagher Iii, J. E. Andrews, L. J. Smith ORCID, G. C. Clayton ORCID, J. C. Lee, E. Sabbi ORCID, L. Ubeda, H. Kim, J. E. Ryon, D. Thilker ORCID, S. N. Bright, E. Zackrisson and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The nearby dwarf starburst galaxy NGC 5253 hosts a number of young, massive star clusters, the two youngest of which are centrally concentrated and surrounded by thermal radio emission (the "radio nebula"). To investigate the role of these clusters in the starburst energetics, we combine new and archival Hubble Space Telescope images of NGC 5253 with wavelength coverage from 1500 Å to 1.9 μm in 13 filters. These include Hα, Pβ, and Pα, and the imaging from the Hubble Treasury Program LEGUS (Legacy Extragalactic UV Survey). The extraordinarily well-sampled spectral energy distributions enable modeling with unprecedented accuracy the ages, masses, and extinctions of the nine optically brightest clusters (MV