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A uvbyß survey of northern-hemisphere active binaries .2. The m_1 deficiency

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dc.contributor.authorGiménez, A.
dc.contributor.authorReglero, V.
dc.contributor.authorCastro Rubio, Elisa De
dc.contributor.authorFernández Figueroa, María José
dc.date.accessioned2023-06-20T20:09:45Z
dc.date.available2023-06-20T20:09:45Z
dc.date.issued1991-08
dc.description© EDP Sciences. © European Southern Observatory. The JKT, on the island of La Palma, is operated by the Royal Greenwich Observatory at the Spanish Roque de los Muchachos Observatory of the Instituto de Astro­física de Canarias. We want to express our gratitude to the observatory staff for their help during the observations. Dr. E.H. Olsen is gratefully acknowledged for his comments during the preparation of the first draft. This work has been supported by the Spanish Comisión Interministerial de Ciencia y Tecnolgía (PB87-0235 and PB86-0536).
dc.description.abstractNew photometric observations, using the uvby and Hß systems of 72 northern-hemisphere active binaries are discussed in order to explain the main characteristics of their spectral light intensity distribution. Values of the parameter δm_1 range from 0.0 to 0.3 mag, which cannot be explained in terms of metal underabundance alone. The existence of some mechanism, responsible for such a colour-index anomaly, is thus suggested and is found to be in close relation with the involved degree of solar-type activity.
dc.description.departmentDepto. de Física de la Tierra y Astrofísica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipComisión Interministerial de Ciencia y Tecnología (CICYT), España
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/32708
dc.identifier.issn0004-6361
dc.identifier.officialurlhttp://adsabs.harvard.edu/abs/1991A%26A...248..563G
dc.identifier.relatedurlhttp://adsabs.harvard.edu/
dc.identifier.relatedurlhttp://www.aanda.org
dc.identifier.urihttps://hdl.handle.net/20.500.14352/59715
dc.issue.number2
dc.journal.titleAstronomy & Astrophysics
dc.language.isoeng
dc.page.final573
dc.page.initial563
dc.publisherEDP Sciencies
dc.relation.projectIDPB87-0235
dc.relation.projectIDPB86-0536
dc.rights.accessRightsopen access
dc.subject.cdu52
dc.subject.keywordMain-Sequence Stars
dc.subject.keywordPhotometry
dc.subject.keywordCalibrations
dc.subject.keywordSystems
dc.subject.ucmAstrofísica
dc.subject.ucmAstronomía (Física)
dc.titleA uvbyß survey of northern-hemisphere active binaries .2. The m_1 deficiency
dc.typejournal article
dc.volume.number248
dcterms.referencesArdeberg A., Lindgren H., 1985, in: Calibration of Fundamental Stellar Quantities, eds. D.S. Hayes et al., Reidel, Dordrecht, p. 509 Basri G., Wilcots E., Stout N., 1989, PASP 101, 528 Bond H.E., 1980, ApJS 44, 517 Byrne P.D., Rodonó M., 1983, in: Activity in Red Dwarf Stars, eds. P.D. Byrne, M. Rodonó, IAU Col!. No. 71, Reidel, Dordrecht Claret A., Giménez A., 1989, A&AS 81, 1 Crawford D.L., 1975, AJ 80, 955 Fabregat J., 1989, Ph.D. Thesis. Universidad de Valencia Giampapa M.S., Worden S.P., Gilliam L.B., 1979, ApJ 229, 1143 Giménez A., Ballester J.M., Reglero V., Fernández Figueroa M.J., de Castro E., 1986a, AJ 92, 131 Giménez A., de Castro E., Fernández Figueroa M.J., 1986b, An. Fis. Ser. A 83, 349 Giménez A., Reglero V., de Castro E., Fernández Figueroa M.J., 1987, Adv. Space Res. No. 8, 191 Gronbech B., Olsen E.H., Strömgren B., 1976, A&AS 26, 155 Hartmann L.W., Noyes R.W., 1987, ARA&A 25, 443 Nelles B., Richtler Th., Seggewiss W., 1985, in: Calibration of Fundamental Stellar Quantities, eds. D.S. Hayes, L.E. Pasinetti, A.G. Davis Phillip, IAU Symp. 111, p. 499 Nissen P.E., Twarog, B.A., Crawford D.L., 1987, AJ 93, 634 Olsen E.H., 1984, A&AS 57, 443 Olsen E.H., 1988, A&A 189, 173 Olson E.C., 1974, AJ 79, 1424 Petersen B.R., 1982, in: Activity in Red Dwarf Stars, eds. P.D. Byrne, M. Rodonó, IAU Coll. No. 71, Reidel, Dordrecht, p. 17 Popper D.M., 1990, AJ 100, 247 Reglero V., Giménez A., de Castro E., Fernández Figueroa M.J., 1987, A&AS 71, 421 Reglero V., Giménez A., Estela A., 1990, A&A 231, 375 Rucinski S., 1981, Acta Astron. 31, 409 Saxner M., Hammarback G., 1985, A&A 151, 372 Schuster W.J., Nissen P.E., 1989, A&A 221, 65 Strassmeier, K.G., Hall D.S., Zeilik M., Nelson E., Eker Z., Fekel F.C., 1988, A&AS 72, 291 Stromgren B., 1966, ARA&A 4, 443
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