Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/29240
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Juráňová, A. | en_US |
dc.contributor.author | Werner, N. | en_US |
dc.contributor.author | GASPARI, MASSIMO | en_US |
dc.contributor.author | Lakhchaura, K. | en_US |
dc.contributor.author | Nulsen, P. E. J. | en_US |
dc.contributor.author | Sun, M. | en_US |
dc.contributor.author | Canning, R. E. A. | en_US |
dc.contributor.author | Allen, S. W. | en_US |
dc.contributor.author | Simionescu, A. | en_US |
dc.contributor.author | Oonk, J. B. R. | en_US |
dc.contributor.author | Connor, T. | en_US |
dc.contributor.author | Donahue, M. | en_US |
dc.date.accessioned | 2020-12-28T16:14:33Z | - |
dc.date.available | 2020-12-28T16:14:33Z | - |
dc.date.issued | 2019 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/29240 | - |
dc.description.abstract | The relative importance of the physical processes shaping the thermodynamics of the hot gas permeating rotating, massive early-type galaxies is expected to be different from that in non-rotating systems. Here, we report the results of the analysis of XMM-Newton data for the massive, lenticular galaxy NGC 7049. The galaxy harbours a dusty disc of cool gas and is surrounded by an extended hot X-ray emitting gaseous atmosphere with unusually high central entropy. The hot gas in the plane of rotation of the cool dusty disc has a multitemperature structure, consistent with ongoing cooling. We conclude that the rotational support of the hot gas is likely capable of altering the multiphase condensation regardless of the t_cool/t_ff ratio, which is here relatively high, ∼40. However, the measured ratio of cooling time and eddy turnover time around unity (C-ratio ≈ 1) implies significant condensation, and at the same time, the constrained ratio of rotational velocity and the velocity dispersion (turbulent Taylor number) Ta_t > 1 indicates that the condensing gas should follow non-radial orbits forming a disc instead of filaments. This is in agreement with hydrodynamical simulations of massive rotating galaxies predicting a similarly extended multiphase disc. | en_US |
dc.language.iso | eng | en_US |
dc.title | Cooling in the X-ray halo of the rotating, massive early-type galaxy NGC 7049 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stz185 | en_US |
dc.identifier.scopus | 2-s2.0-85063379373 | en_US |
dc.identifier.isi | 000462302600104 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/484/2/2886/5290333 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 484 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 2886 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2019MNRAS.484.2886J | en_US |
dc.description.apc | sì | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare 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 | OAS Bologna | - |
crisitem.author.orcid | 0000-0003-2754-9258 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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stz185.pdf | pdf editoriale | 1.61 MB | Adobe PDF | View/Open |
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