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CLusters in the UV ...
CLusters in the UV as EngineS (CLUES). I. Survey Presentation and FUV Spectral Analysis of the Stellar Light
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- Sirressi, Mattia (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Adamo, Angela, 1981- (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Hayes, Matthew (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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Osborne, Shannon (author)
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Hernandez, Svea (author)
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Chisholm, John (author)
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- Messa, Matteo, 1988- (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Université de Genève, Switzerland
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Smith, Linda J. (author)
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Aloisi, Alessandra (author)
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Wofford, Aida (author)
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Fox, Andrew J. (author)
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Mizener, Andrew (author)
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- Usher, Christopher (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Bik, Arjan (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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Calzetti, Daniela (author)
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Sabbi, Elena (author)
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Schinnerer, Eva (author)
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- Östlin, Göran (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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Grasha, Kathryn (author)
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Cignoni, Michele (author)
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Fumagalli, Michele (author)
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(creator_code:org_t)
- 2022-10-21
- 2022
- English.
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In: Astronomical Journal. - : American Astronomical Society. - 0004-6256 .- 1538-3881. ; 164:5
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https://doi.org/10.3...
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Abstract
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- The CLusters in the Uv as EngineS (CLUES) survey is a Cosmic Origins Spectrograph (COS) campaign aimed at acquiring the 1130–1770 Å rest-frame spectroscopy of very young (<20 Myr) and massive (>104 M⊙) star clusters in galaxies that are part of the Hubble treasury program Legacy ExtraGalactic UV Survey. In this first paper of a series, we describe the CLUES sample consisting of 20 young star clusters and report their physical properties as derived by both multiwavelength photometry and far-UV (FUV) spectroscopy with Hubble Space Telescope. Thanks to the synergy of the two different data sets, we build a coherent picture of the diverse stellar populations found in each region (with sizes of 40–160 pc). We associate the FUV-brightest stellar population to the central targeted star cluster and the other modeled population to the diffuse stars that are included in the COS aperture. We observe better agreement between photometric and spectroscopic ages for star clusters younger than 5 Myr. For clusters older than 5 Myr, photometry and spectroscopy measurements deviate, with the latter producing older ages, due to the degeneracy of photometric models. FUV spectroscopy enables us to better constrain the stellar metallicities, a parameter that optical colors are insensitive to. Finally, the derived E(B − V) are quite similar, with a tendency for FUV spectroscopy to favor solutions with higher extinctions. The recovered masses are in agreement within a factor of 2 for all of the clusters.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Sirressi, Mattia
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Adamo, Angela, 1 ...
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Hayes, Matthew
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Osborne, Shannon
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Hernandez, Svea
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Chisholm, John
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Messa, Matteo, 1 ...
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Smith, Linda J.
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Aloisi, Alessand ...
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Wofford, Aida
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Fox, Andrew J.
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Mizener, Andrew
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Usher, Christoph ...
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Bik, Arjan
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Calzetti, Daniel ...
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Sabbi, Elena
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Schinnerer, Eva
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Östlin, Göran
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Grasha, Kathryn
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Cignoni, Michele
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Fumagalli, Miche ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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Stockholm University