1. RODNA
  2. Universidad Nacional de Río Negro
  3. Universidad Nacional de Río Negro
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dc.provenanceUniversidad Nacional de Río Negro-
dc.creatorDamineli, A.-
dc.creatorHillier, D. J.-
dc.creatorCorcoran, Michael-
dc.creatorStahl, O.-
dc.creatorGroh, J. H.-
dc.creatorArias, Julia I.-
dc.creatorTeodoro, M.-
dc.creatorMorrell, Nidia I.-
dc.creatorGamen, Roberto C.-
dc.creatorGonzalez, Jorge F.-
dc.creatorLeister, N. V.-
dc.creatorLevato, Orlando H.-
dc.creatorLevenhagen, R. S.-
dc.creatorGrosso, Monica G.-
dc.creatorAlbacete Colombo, Juan F.-
dc.creatorWallerstein, G.-
dc.date2008-06-
dc.date.accessioned2020-02-11T14:08:29Z-
dc.date.available2020-02-11T14:08:29Z-
dc.date.issued2008-06-
dc.identifierDamineli, A.; Hillier, D. J., Corcoran, Michael; Stahl, O, ....& Groh, J. H.(2008). A multispectral view of the periodic events in Eta Carinae. Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 386; 4; 6-2008; 2330-2344-
dc.identifier1365-2966-
dc.identifier0035-8711-
dc.identifierhttp://dx.doi.org/10.1111/j.1365-2966.2008.13214.x-
dc.identifierhttps://academic.oup.com/mnras/article/386/4/2330/1468103-
dc.identifierhttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/2499-
dc.identifierhttp://hdl.handle.net/11336/44112-
dc.identifier.urihttp://rodna.bn.gov.ar/jspui/handle/bnmm/575674-
dc.descriptionFil: Damineli, A. Universidade de Sao Paulo; Brasil-
dc.descriptionFil: Hillier, D. J. University of Pittsburgh; Estados Unidos-
dc.descriptionFil: Corcoran, Michael. CRESST and X-ray Astrophysics Laboratory; Estados Unidos-
dc.descriptionFil: Stahl, O. Zentrum für Astronomie. Landessternwarte; Alemania-
dc.descriptionFil: Groh, J. H. Universidade de Sao Paulo; Brasil-
dc.descriptionFil: Arias, Julia I. Universidad de La Serena; Chile-
dc.descriptionFil: Teodoro, M. Universidade de Sao Paulo; Brasil-
dc.descriptionFil: Morrell, Nidia I. Las Campanas Observatory; Chile-
dc.descriptionFil: Gamen, Roberto C. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico ; Argentina-
dc.descriptionFil: Gonzalez, Jorge F. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico ; Argentina-
dc.descriptionFil: Leister, N. V.. Universidade de Sao Paulo; Brasil-
dc.descriptionFil: Levato, Orlando H. Consejo Nacional de Investigaciones Científicas y Técnicas. Argentina-
dc.descriptionFil: Levenhagen, R. S.. Universidade de Sao Paulo; Brasil-
dc.descriptionFil: Grosso, Monica G. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina-
dc.descriptionFil: Albacete Colombo, Juan F. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina-
dc.descriptionFil: Wallerstein, G.. University of Washington; Estados Unidos-
dc.descriptionA full description of the 5.5-yr low excitation events in η Carinae is presented. We show that they are not as simple and brief as previously thought, but a combination of two components. The first, the slow variation component, is revealed by slow changes in the ionization level of circumstellar matter across the whole cycle and is caused by gradual changes in the wind– wind collision shock-cone orientation, angular opening and gaseous content. The second, the collapse component, is restricted to around the minimum, and is due to a temporary global collapse of the wind–wind collision shock. High-energy photons (E > 16 eV) from the companion star are strongly shielded, leaving the Weigelt objects at low-ionization state for more than six months. High-energy phenomena are sensitive only to the collapse, low energy only to the slow variation and intermediate energies to both components. Simple eclipses and mechanisms effective only near periastron (e.g. shell ejection or accretion on to the secondary star) cannot account for the whole 5.5-yr cycle. We find anti-correlated changes in the intensity and the radial velocity of P Cygni absorption profiles in Fe II λ6455 and He I λ7065 lines, indicating that the former is associated to the primary and the latter to the secondary star. We present a set of light curves representative of the whole spectrum, useful for monitoring the next event (2009 January 11).-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherJournal compilation-
dc.relation386-
dc.relationMonthly Notices of the Royal Astronomical Society-
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/4.0/-
dc.sourcereponame:RID-UNRN (UNRN)-
dc.sourceinstname:Universidad Nacional de Río Negro-
dc.sourceinstacron:UNRN-
dc.source.urihttp://hdl.handle.net/11336/44112-
dc.subjectstars-
dc.subjectη Carinae-
dc.subject.::Ciencias Exactas y Naturales-
dc.titleA multispectral view of the periodic events in Eta Carinae-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
dc.about-
Aparece en las colecciones: Universidad Nacional de Río Negro

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