Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/27787
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Arulanantham, N. | en_US |
dc.contributor.author | France, K. | en_US |
dc.contributor.author | Hoadley, K. | en_US |
dc.contributor.author | Manara, C. F. | en_US |
dc.contributor.author | Schneider, P. C. | en_US |
dc.contributor.author | ALCALA', JUAN MANUEL | en_US |
dc.contributor.author | Banzatti, A. | en_US |
dc.contributor.author | Günther, H. M. | en_US |
dc.contributor.author | Miotello, A. | en_US |
dc.contributor.author | van der Marel, N. | en_US |
dc.contributor.author | van Dishoeck, E. F. | en_US |
dc.contributor.author | Walsh, C. | en_US |
dc.contributor.author | Williams, J. P. | en_US |
dc.date.accessioned | 2020-10-14T08:43:42Z | - |
dc.date.available | 2020-10-14T08:43:42Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27787 | - |
dc.description.abstract | We present a study of molecular gas in the inner disk (r< 20 {au}) around RY Lupi, with spectra from HST-COS, HST-STIS, and VLT-CRIRES. We model the radial distribution of flux from hot gas in a surface layer between r = 0.1-10 au, as traced by Lyα-pumped H<SUB>2</SUB>. The result shows H<SUB>2</SUB> emission originating in a ring centered at ∼3 au that declines within r < 0.1 au, which is consistent with the behavior of disks with dust cavities. An analysis of the H<SUB>2</SUB> line shapes shows that a two-component Gaussian profile ({FWHM}}<SUB>broad</SUB>,{{{H}}}<SUB>2</SUB>}=105 +/- 15 {km} {{{s}}}<SUP>-1</SUP>{FWHM}}<SUB>narrow</SUB>,{{{H}}}<SUB>2</SUB>}=43+/- 13 {km} {{{s}}}<SUP>-1</SUP>) is statistically preferred to a single-component Gaussian. We interpret this as tentative evidence for gas emitting from radially separated disk regions (< {r}<SUB>broad</SUB>,{{{H}}}<SUB>2</SUB>}> ∼ 0.4+/- 0.1 {au};< {r}<SUB>narrow</SUB>,{{{H}}}<SUB>2</SUB>}> ∼ 3+/- 2 {au}). The 4.7 μm <SUP>12</SUP>CO emission lines are also well fit by two-component profiles (< {r}<SUB>broad</SUB>,{CO}}> =0.4+/- 0.1 {au};< {r}<SUB>narrow</SUB>,{CO}}> =15+/- 2 {au}). We combine these results with 10 μm observations to form a picture of gapped structure within the mm-imaged dust cavity, providing the first such overview of the inner regions of a young disk. The HST SED of RY Lupi is available online for use in modeling efforts. | en_US |
dc.language.iso | eng | en_US |
dc.title | A UV-to-NIR Study of Molecular Gas in the Dust Cavity around RY Lupi | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4357/aaaf65 | en_US |
dc.identifier.scopus | 2-s2.0-85044046180 | en_US |
dc.identifier.isi | 000427362600014 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/aaaf65 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 855 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 98 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | USA | en_US |
dc.contributor.country | GBR | en_US |
dc.contributor.country | DEU | en_US |
dc.contributor.country | NLD | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018ApJ...855...98A | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.orcid | 0000-0001-8657-095X | - |
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