Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/23099
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | BUSON, Lucio | en_US |
dc.contributor.author | BETTONI, Daniela | en_US |
dc.contributor.author | MAZZEI, Paola | en_US |
dc.contributor.author | Galletta, G. | en_US |
dc.date.accessioned | 2020-03-04T11:49:31Z | - |
dc.date.available | 2020-03-04T11:49:31Z | - |
dc.date.issued | 2015 | en_US |
dc.identifier.issn | 1687-7969 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/23099 | - |
dc.description.abstract | We want to get insight into the nature, i.e. the formation mechanism and the evolution, of UGC 7639, a dwarf galaxy in the Canes Venatici I Cloud (CVnIC). We used archival GALEX (FUV and NUV) and SDSS images, as well as Hyperleda and NED databases, to constrain its global properties. GALEX FUV/NUV images show that UGC 7639 inner regions are composed mostly by young stellar populations. In addition, we used smoothed particle hydrodynamics (SPH) simulations with chemo-photometric implementation to account for its formation and evolution. UGC 7639 is an example of blue dwarf galaxy whose global properties are well matched by our multi-wavelength and multi-technique approach, that is also a suitable approach to highlight the evolution of these galaxies as a class. We found that the global properties of UGC 7639, namely its total absolute B-band magnitude, its whole spectral energy distribution (SED), and its morphology are well-matched by an encounter with a system four times more massive than our target. Moreover, the current star formation rate (SFR) of the simulated dwarf, ~0.03 M_sun yr-1, is in good agreement with our UV-based estimate. For UGC 7639, we estimated a galaxy age of 8.6 Gyr. Following our simulation, the ongoing star formation will extinguish within 1.6 Gyr, thus leaving a red dwarf galaxy. | en_US |
dc.language.iso | eng | en_US |
dc.title | UGC 7639: A Dwarf Galaxy in the Canes Venatici I Cloud | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1155/2015/274968 | en_US |
dc.identifier.scopus | 2-s2.0-84939174579 | en_US |
dc.identifier.isi | 000359210500001 | en_US |
dc.identifier.url | https://www.hindawi.com/journals/aa/2015/274968/ | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 2015 | en_US |
dc.relation.firstpage | 274968 | en_US |
dc.relation.numberofpages | 10 | en_US |
dc.relation.article | 274968 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 4 | en_US |
dc.description.international | no | en_US |
dc.contributor.country | ITA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | ADVANCES IN ASTRONOMY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2015AdAst2015E...8B | en_US |
dc.relation.ercsector | Scienze Fisiche Settori ERC (ERC) di riferimento::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegherò il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.orcid | 0000-0002-9129-9612 | - |
crisitem.author.orcid | 0000-0002-4158-6496 | - |
crisitem.author.orcid | 0000-0002-8004-1034 | - |
crisitem.journal.journalissn | 1687-7969 | - |
crisitem.journal.ance | E196785 | - |
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