FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2158693872> ?p ?o ?g. }

• W2158693872 endingPage "A97" @default.
• W2158693872 startingPage "A97" @default.
• W2158693872 abstract "Context. Emission and absorption line profiles which are formed in the interaction of pre-main sequence (PMS) stars and their circumstellar environment are found to be variable at various timescales. Aims. We investigate the patterns and timescales of temporal line profile variability in order to explore the dynamical circumstellar environment of the PMS Herbig Ae star V351 Ori. Methods.We obtained 45 high-resolution (R~28,000) spectra of V351 Ori at timescales of hours, days, and months.We analysed the Halpha line profiles and also examined the Hbeta, NaD1 and NaD2 line profiles to explore the nature of the spectroscopic variability. Results. The Halpha line profiles showed strong variations over all timescales. The shape of the profiles changed over timescales of a day. Single as well as simultaneous event(s) of blue-shifted and red-shifted transient absorption components (TACs), i.e. signatures of outflow and infall, were also observed in the Halpha line profiles. The shortest period of variation in the TACs was < 1 hour. All transient absorption events were found to decelerate with a rate of a few to fractions of m s-2. The depth and width of the TACs were also changing with time. The presence of elongated red-shifted components at some epochs supports the episodic nature of accretion. Conclusions. Variable emission and absorption components detected in Halpha line profiles show the dynamic nature of interaction between V351 Ori and its circumstellar environment. The Halpha non-photospheric profiles of the star most probably originate in the disk wind. Episodic accretion of gaseous material at a slow rate and outflow of clumpy gaseous material are still occurring in V351 Ori at an age of ~6.5 Myr. Dynamic magnetospheric accretion and disk wind emerge as the most satisfactory model for interpreting the observed line profile variations of V351 Ori." @default.
• W2158693872 created "2016-06-24" @default.
• W2158693872 creator A5008378694 @default.
• W2158693872 creator A5026929442 @default.
• W2158693872 creator A5068019221 @default.
• W2158693872 date "2011-01-05" @default.
• W2158693872 modified "2023-09-27" @default.
• W2158693872 title "Variable circumstellar activity of V351 Orionis" @default.
• W2158693872 cites W1971765055 @default.
• W2158693872 cites W1973756469 @default.
• W2158693872 cites W1974689993 @default.
• W2158693872 cites W1976807478 @default.
• W2158693872 cites W1978391636 @default.
• W2158693872 cites W1980100166 @default.
• W2158693872 cites W1998673955 @default.
• W2158693872 cites W2002290949 @default.
• W2158693872 cites W2005802057 @default.
• W2158693872 cites W2009029252 @default.
• W2158693872 cites W2014836068 @default.
• W2158693872 cites W2022930441 @default.
• W2158693872 cites W2028855598 @default.
• W2158693872 cites W2032789761 @default.
• W2158693872 cites W2033574324 @default.
• W2158693872 cites W2042753720 @default.
• W2158693872 cites W2052248972 @default.
• W2158693872 cites W2055504759 @default.
• W2158693872 cites W2065378328 @default.
• W2158693872 cites W2068674393 @default.
• W2158693872 cites W2070531397 @default.
• W2158693872 cites W2102780052 @default.
• W2158693872 cites W2103606527 @default.
• W2158693872 cites W2110894057 @default.
• W2158693872 cites W2113139191 @default.
• W2158693872 cites W2133389631 @default.
• W2158693872 cites W2133725650 @default.
• W2158693872 cites W2136168988 @default.
• W2158693872 cites W2138681793 @default.
• W2158693872 cites W2140858588 @default.
• W2158693872 cites W2143696268 @default.
• W2158693872 cites W2154370253 @default.
• W2158693872 cites W2158876912 @default.
• W2158693872 cites W3101646687 @default.
• W2158693872 cites W3103766682 @default.
• W2158693872 doi "https://doi.org/10.1051/0004-6361/201015548" @default.
• W2158693872 hasPublicationYear "2011" @default.
• W2158693872 type Work @default.
• W2158693872 sameAs 2158693872 @default.
• W2158693872 citedByCount "3" @default.
• W2158693872 countsByYear W21586938722013 @default.
• W2158693872 countsByYear W21586938722014 @default.
• W2158693872 crossrefType "journal-article" @default.
• W2158693872 hasAuthorship W2158693872A5008378694 @default.
• W2158693872 hasAuthorship W2158693872A5026929442 @default.
• W2158693872 hasAuthorship W2158693872A5068019221 @default.
• W2158693872 hasBestOaLocation W21586938721 @default.
• W2158693872 hasConcept C120665830 @default.
• W2158693872 hasConcept C121332964 @default.
• W2158693872 hasConcept C125287762 @default.
• W2158693872 hasConcept C127313418 @default.
• W2158693872 hasConcept C1276947 @default.
• W2158693872 hasConcept C1329718 @default.
• W2158693872 hasConcept C150846664 @default.
• W2158693872 hasConcept C151730666 @default.
• W2158693872 hasConcept C153294291 @default.
• W2158693872 hasConcept C178075534 @default.
• W2158693872 hasConcept C198352243 @default.
• W2158693872 hasConcept C2524010 @default.
• W2158693872 hasConcept C2776401274 @default.
• W2158693872 hasConcept C2779343474 @default.
• W2158693872 hasConcept C33923547 @default.
• W2158693872 hasConcept C44870925 @default.
• W2158693872 hasConcept C4839761 @default.
• W2158693872 hasConcept C80518518 @default.
• W2158693872 hasConcept C86132830 @default.
• W2158693872 hasConcept C96141758 @default.
• W2158693872 hasConceptScore W2158693872C120665830 @default.
• W2158693872 hasConceptScore W2158693872C121332964 @default.
• W2158693872 hasConceptScore W2158693872C125287762 @default.
• W2158693872 hasConceptScore W2158693872C127313418 @default.
• W2158693872 hasConceptScore W2158693872C1276947 @default.
• W2158693872 hasConceptScore W2158693872C1329718 @default.
• W2158693872 hasConceptScore W2158693872C150846664 @default.
• W2158693872 hasConceptScore W2158693872C151730666 @default.
• W2158693872 hasConceptScore W2158693872C153294291 @default.
• W2158693872 hasConceptScore W2158693872C178075534 @default.
• W2158693872 hasConceptScore W2158693872C198352243 @default.
• W2158693872 hasConceptScore W2158693872C2524010 @default.
• W2158693872 hasConceptScore W2158693872C2776401274 @default.
• W2158693872 hasConceptScore W2158693872C2779343474 @default.
• W2158693872 hasConceptScore W2158693872C33923547 @default.
• W2158693872 hasConceptScore W2158693872C44870925 @default.
• W2158693872 hasConceptScore W2158693872C4839761 @default.
• W2158693872 hasConceptScore W2158693872C80518518 @default.
• W2158693872 hasConceptScore W2158693872C86132830 @default.
• W2158693872 hasConceptScore W2158693872C96141758 @default.
• W2158693872 hasLocation W21586938721 @default.
• W2158693872 hasLocation W21586938722 @default.
• W2158693872 hasLocation W21586938723 @default.

• next