Mostrar el registro sencillo del ítem Baella, Nobar Pereira, C. B. Miranda, L. F. Alvarez-Candal, A. 2018-08-08T17:51:10Z 2018-08-08T17:51:10Z 2016-02-05
dc.identifier.citation Baella, N., Pereira, C. B., Miranda, L. F., & Alvarez-Candal, A. (2016). Searching for new yellow symbiotic stars: Positive identification of StHα63.==$The Astronomical Journal, 151$==(4), 1-6. es_ES
dc.identifier.govdoc index-oti2018
dc.description.abstract Yellow symbiotic stars are useful targets to probe whether mass transfer has happened in these binary systems. However, the number of known yellow symbiotic stars is very scarce. We report spectroscopic observations of five candidate yellow symbiotic stars selected by their position in the 2MASS (J-H) vs. (H-Ks) diagram and included in some emission-line catalogs. Among the five candidates, only StHa63 is identified as a new yellow symbiotic star because of its spectrum and its position in the [TiO]1-[TiO]2 diagram that indicates a K4-K6 spectral type. In addition, the derived electron density (10E8.4 cm-3) and several emission line intensity ratios provide further support for that classification. The other four candidates are rejected as symbiotic stars because three of them actually do not show emission lines and the fourth one shows only Balmer emission lines. We also found that the WISE W3-W4 index clearly separates normal K-giants from yellow symbiotic stars and, therefore, can be used as an additional tool to select candidate yellow symbiotic stars. es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher American Astronomical Society es_ES
dc.relation.ispartof urn:issn:0004-6256
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.subject Binaries: symbiotic es_ES
dc.subject Stars: fundamental parameters es_ES
dc.subject Stars: individual (StHα63) es_ES
dc.title Searching for new yellow symbiotic stars: Positive identification of StHα63 es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde es_ES
dc.identifier.journal The Astrophysical Journal es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi es_ES




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