Matches in SemOpenAlex for { <https://semopenalex.org/work/W2076860618> ?p ?o ?g. }
Showing items 1 to 96 of
96
with 100 items per page.
- W2076860618 endingPage "250" @default.
- W2076860618 startingPage "239" @default.
- W2076860618 abstract "The results of high-resolution spectroscopy of the peculiar Ae star HD 190073 obtained within the framework of a cooperative observing programme in 1994–2002 are presented. The temporal behaviour of the Hα, Hβ, Hγ, Hδ, He i λ 5876 Å, Na i D and other circumstellar line profiles are investigated in detail. Special attention has been paid to the analysis of the deep multicomponent blueshifted Ca ii H and K absorption lines. It has been found that the fine structure of their profiles is variable on timescales from months to decades. The analysis of the circumstellar spectrum of HD 190073, rich in shell-like and emission lines with narrow absorption cores, allows us to conclude that all absorption lines and cores are likely to be of photospheric origin. The emission lines are variable in time and demonstrate signs of a stellar wind as well as a dense equatorial circumstellar disk. As a preliminary hypothesis, we propose that a global magnetic field of a specific topology can be responsible for the formation of stable latitudinal stratification of the outflowing gas resulting in appearance of the complex structure of the Ca ii H and K line profiles. We emphasise that a measurement of the stellar magnetic field and an investigation of its detailed configuration would be an important step in understanding the nature of HD 190073." @default.
- W2076860618 created "2016-06-24" @default.
- W2076860618 creator A5037943725 @default.
- W2076860618 creator A5079731467 @default.
- W2076860618 creator A5090508906 @default.
- W2076860618 date "2005-07-01" @default.
- W2076860618 modified "2023-09-27" @default.
- W2076860618 title "Spectroscopic behaviour of the unusual Ae star HD 190073" @default.
- W2076860618 cites W1523724368 @default.
- W2076860618 cites W1642880642 @default.
- W2076860618 cites W1964225025 @default.
- W2076860618 cites W1978391636 @default.
- W2076860618 cites W1993327423 @default.
- W2076860618 cites W1996981679 @default.
- W2076860618 cites W2008058837 @default.
- W2076860618 cites W2009982494 @default.
- W2076860618 cites W2016854238 @default.
- W2076860618 cites W2022277013 @default.
- W2076860618 cites W2023344645 @default.
- W2076860618 cites W2023543065 @default.
- W2076860618 cites W2058551283 @default.
- W2076860618 cites W2070531397 @default.
- W2076860618 cites W2072357107 @default.
- W2076860618 cites W2075456175 @default.
- W2076860618 cites W2076781352 @default.
- W2076860618 cites W2083687101 @default.
- W2076860618 cites W2094231627 @default.
- W2076860618 cites W2138681793 @default.
- W2076860618 cites W2158174512 @default.
- W2076860618 cites W3101442776 @default.
- W2076860618 cites W4214929930 @default.
- W2076860618 doi "https://doi.org/10.1051/0004-6361:20034290" @default.
- W2076860618 hasPublicationYear "2005" @default.
- W2076860618 type Work @default.
- W2076860618 sameAs 2076860618 @default.
- W2076860618 citedByCount "18" @default.
- W2076860618 countsByYear W20768606182012 @default.
- W2076860618 countsByYear W20768606182014 @default.
- W2076860618 countsByYear W20768606182016 @default.
- W2076860618 countsByYear W20768606182017 @default.
- W2076860618 countsByYear W20768606182019 @default.
- W2076860618 crossrefType "journal-article" @default.
- W2076860618 hasAuthorship W2076860618A5037943725 @default.
- W2076860618 hasAuthorship W2076860618A5079731467 @default.
- W2076860618 hasAuthorship W2076860618A5090508906 @default.
- W2076860618 hasBestOaLocation W20768606181 @default.
- W2076860618 hasConcept C115260700 @default.
- W2076860618 hasConcept C121332964 @default.
- W2076860618 hasConcept C1276947 @default.
- W2076860618 hasConcept C150846664 @default.
- W2076860618 hasConcept C178075534 @default.
- W2076860618 hasConcept C198352243 @default.
- W2076860618 hasConcept C2524010 @default.
- W2076860618 hasConcept C32891209 @default.
- W2076860618 hasConcept C33923547 @default.
- W2076860618 hasConcept C44870925 @default.
- W2076860618 hasConcept C4839761 @default.
- W2076860618 hasConcept C62520636 @default.
- W2076860618 hasConcept C8865038 @default.
- W2076860618 hasConcept C96141758 @default.
- W2076860618 hasConceptScore W2076860618C115260700 @default.
- W2076860618 hasConceptScore W2076860618C121332964 @default.
- W2076860618 hasConceptScore W2076860618C1276947 @default.
- W2076860618 hasConceptScore W2076860618C150846664 @default.
- W2076860618 hasConceptScore W2076860618C178075534 @default.
- W2076860618 hasConceptScore W2076860618C198352243 @default.
- W2076860618 hasConceptScore W2076860618C2524010 @default.
- W2076860618 hasConceptScore W2076860618C32891209 @default.
- W2076860618 hasConceptScore W2076860618C33923547 @default.
- W2076860618 hasConceptScore W2076860618C44870925 @default.
- W2076860618 hasConceptScore W2076860618C4839761 @default.
- W2076860618 hasConceptScore W2076860618C62520636 @default.
- W2076860618 hasConceptScore W2076860618C8865038 @default.
- W2076860618 hasConceptScore W2076860618C96141758 @default.
- W2076860618 hasIssue "1" @default.
- W2076860618 hasLocation W20768606181 @default.
- W2076860618 hasLocation W20768606182 @default.
- W2076860618 hasOpenAccess W2076860618 @default.
- W2076860618 hasPrimaryLocation W20768606181 @default.
- W2076860618 hasRelatedWork W1988974441 @default.
- W2076860618 hasRelatedWork W2094839758 @default.
- W2076860618 hasRelatedWork W2117614630 @default.
- W2076860618 hasRelatedWork W2148915682 @default.
- W2076860618 hasRelatedWork W2952534122 @default.
- W2076860618 hasRelatedWork W3099818359 @default.
- W2076860618 hasRelatedWork W3100616992 @default.
- W2076860618 hasRelatedWork W3106232146 @default.
- W2076860618 hasRelatedWork W71898734 @default.
- W2076860618 hasRelatedWork W97932362 @default.
- W2076860618 hasVolume "438" @default.
- W2076860618 isParatext "false" @default.
- W2076860618 isRetracted "false" @default.
- W2076860618 magId "2076860618" @default.
- W2076860618 workType "article" @default.