Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28958
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Locci, Daniele | en_US |
dc.contributor.author | CECCHI PESTELLINI, Cesare | en_US |
dc.contributor.author | MICELA, Giuseppina | en_US |
dc.contributor.author | CIARAVELLA, Angela | en_US |
dc.contributor.author | ARESU, Giambattista | en_US |
dc.date.accessioned | 2020-12-17T17:52:56Z | - |
dc.date.available | 2020-12-17T17:52:56Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28958 | - |
dc.description.abstract | X-rays are an important ingredient of the radiation environment of a variety of stars of different spectral types and age. We have modelled the X-ray transfer and energy deposition into a gas with solar composition, through an accurate description of the electron cascade following the history of the primary photoelectron energy deposition. We test and validate this description studying the possible formation of regions in which X-rays are the major ionization channel. Such regions, called Röntgen spheres may have considerable importance in the chemical and physical evolution of the gas embedding the emitting star. Around massive stars the concept of Röntgen sphere appears to be of limited use, as the formation of extended volumes with relevant levels of ionization is efficient just in a narrow range of gas volume densities. In clouds embedding low-mass pre-main-sequence stars significant volumes of gas are affected by ionization levels exceeding largely the cosmic-ray background ionization. In clusters arising in regions of vigorous star formation X-rays create an ionization network pervading densely the interstellar medium, and providing a natural feedback mechanism, which may affect planet and star formation processes. | en_US |
dc.language.iso | eng | en_US |
dc.title | Röntgen spheres around active stars | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stx2370 | en_US |
dc.identifier.scopus | 2-s2.0-85045985450 | en_US |
dc.identifier.isi | 000415653600038 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article-abstract/473/1/447/4157810?redirectedFrom=fulltext | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 473 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 447 | en_US |
dc.type.referee | REF_1 | 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 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018MNRAS.473..447L | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_6 Stars and stellar systems | 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.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. Palermo | - |
crisitem.author.dept | O.A. Palermo | - |
crisitem.author.dept | O.A. Palermo | - |
crisitem.author.dept | O.A. Palermo | - |
crisitem.author.orcid | 0000-0002-9824-2336 | - |
crisitem.author.orcid | 0000-0001-7480-0324 | - |
crisitem.author.orcid | 0000-0002-9900-4751 | - |
crisitem.author.orcid | 0000-0002-3127-8078 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
locci_et_al.2018.pdf | PDF editoriale | 598.14 kB | Adobe PDF | View/Open |
Page view(s)
36
checked on Apr 19, 2024
Download(s)
12
checked on Apr 19, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.