Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28301
DC Field | Value | Language |
---|---|---|
dc.contributor.author | BRAND, JAN | en_US |
dc.contributor.author | Engels, Dieter | en_US |
dc.contributor.author | Winnberg, Anders | en_US |
dc.date.accessioned | 2020-11-12T16:37:53Z | - |
dc.date.available | 2020-11-12T16:37:53Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.isbn | 978-1107192454 | en_US |
dc.identifier.issn | 1743-9213 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28301 | - |
dc.description.abstract | For several decades (1987-2015) we have been carrying out observations of water masers in the circumstellar envelopes (CSE's) of Mira variables, Red Supergiants (RSG's) and Semi-Regular Variables (SRV's) with the Medicina 32-m and Effelsberg 100-m antennas. The single-dish monitoring observations provide evidence for strong H<SUB>2</SUB>O maser profile variations, which likely are connected to structural changes in the maser shells. Such variations include strong flares in intensity lasting several (tens of) months and systemic velocity gradients of maser components developing over years, as well as other secular variations which are superimposed on periodic variations following the stellar light variations. <P />When complemented with interferometric observations, it is possible to derive the 3-D distribution of the maser spots, and their lifetime, as we have done for RX Boo (Winnberg et al. 2008) and U Her (Winnberg et al. 2011; Brand et al. in prep.). | en_US |
dc.language.iso | eng | en_US |
dc.title | Variability of water masers in evolved stars on timescales of decades | en_US |
dc.type | Conference paper | - |
dc.identifier.doi | 10.1017/S1743921317009450 | en_US |
dc.identifier.url | https://www.cambridge.org/core/journals/proceedings-of-the-international-astronomical-union/article/variability-of-water-masers-in-evolved-stars-on-timescales-of-decades/9D39BD0F5AE8D0A2D48955A454552BB3 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | vol. 13, S336 | en_US |
dc.relation.firstpage | 393 | en_US |
dc.relation.lastpage | 394 | en_US |
dc.relation.numberofpages | 2 | en_US |
dc.type.referee | REF_0 | en_US |
dc.description.numberofauthors | 3 | en_US |
dc.description.international | sì | en_US |
dc.relation.alleditors | Tarchi, Andrea; Reid, Mark J.; Castangia, Paola | en_US |
dc.relation.ispartofbook | Astrophysical Masers: Unlocking the Mysteries of the Universe | en_US |
dc.type.invited | no | en_US |
dc.relation.conferencename | Astrophysical Masers: Unlocking the Mysteries of the Universe | en_US |
dc.relation.conferenceplace | Cagliari, Italy | en_US |
dc.relation.conferencedate | 4-8 September, 2017 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.type.miur | 273 Contributo in Atti di convegno | - |
dc.relation.series | PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION | en_US |
dc.identifier.adsbibcode | 2018IAUS..336..393B | 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 | Conference paper | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.orcid | 0000-0003-1615-9043 | - |
crisitem.journal.journalissn | 1743-9213 | - |
crisitem.journal.ance | E192651 | - |
Appears in Collections: | 3.01 Contributi in Atti di convegno |
Files in This Item:
File | Description | Size | Format | |
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Brand-IAU336.pdf | Pdf editoriale | 180.87 kB | Adobe PDF | View/Open |
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