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dc.contributor.authorZavala, R. T.
dc.contributor.authorHummel, C. A.
dc.contributor.authorBoboltz, D. A.
dc.contributor.authorOjha, R.
dc.contributor.authorShaffer, D. B.
dc.contributor.authorTycner, C.
dc.contributor.authorRichards, M. T.
dc.contributor.authorHutter, D. J.
dc.date.accessioned2020-05-04T13:19:42Z
dc.date.available2020-05-04T13:19:42Z
dc.date.issued2010-04-30
dc.description.abstractInteracting binaries typically have separations in the milliarcsecond regime, and hence it has been challenging to resolve them at any wavelength. However, recent advances in optical interferometry have improved our ability to discern the components in these systems and have now enabled the direct determination of physical parameters. We used the Navy Prototype Optical Interferometer to produce for the first time images resolving all three components in the well-known Algol triple system. Specifically, we have separated the tertiary component from the binary and simultaneously resolved the eclipsing binary pair, which represents the nearest and brightest eclipsing binary in the sky. We present revised orbital elements for the triple system, and we have rectified the 180° ambiguity in the position angle of Algol C. Our directly determined magnitude differences and masses for this triple star system are consistent with earlier light curve modeling results.en_US
dc.description.sponsorshipThe Navy Prototype Optical Interferometer is a joint project of the Naval Research Laboratory and the US Naval Observatory, in cooperation with Lowell Observatory and is funded by the Office of Naval Research and the Oceanographer of the Navy. The authors thank Jim Benson and the NPOI observational support staff whose efforts made this project possible. S. Bosken and G. Shelton of the USNO Library were very helpful in our literature search. R.T.Z. is thankful for the support of the Fizeau Exchange Visitor Program through the European Interferometry Initiative (EII) and OPTICON (an EU funded framework program, contract number RII3-CT-2004-001566). This work was partially supported by National Science Foundation grant AST-0908440 to Richards. The literature search made use of the NASA ADS abstract service, the SIMBAD database maintained at CDS, Strasbourg, France, and the JSTOR archives. We thank an anonymous referee for numerous suggestions which improved the Letter.en_US
dc.description.urihttps://iopscience.iop.org/article/10.1088/2041-8205/715/1/L44en_US
dc.format.extent7 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2ez7v-6c1c
dc.identifier.citationR. T. Zavala, C. A. Hummel, D. A. Boboltz, R. Ojha, D. B. Shaffer, C. Tycner, M. T. Richards, and D. J. Hutter, THE ALGOL TRIPLE SYSTEM SPATIALLY RESOLVED AT OPTICAL WAVELENGTHS, The Astrophysical Journal Letters, Volume 715, Number 1, doi: https://doi.org/10.1088%2F2041-8205%2F715%2F1%2Fl44en_US
dc.identifier.urihttps://doi.org/10.1088%2F2041-8205%2F715%2F1%2Fl44
dc.identifier.urihttp://hdl.handle.net/11603/18472
dc.identifier.urihttps://iopscience.iop.org/article/10.3847/2041-8213/aa75cd/pdf
dc.identifier.urihttp://simbad.u-strasbg.fr/simbad/sim-ref?querymethod=bib&simbo=on&submit=submit+bibcode&bibcode=2010ApJ...715L..44Z
dc.language.isoen_USen_US
dc.publisherIOPen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Physics Department Collection
dc.relation.ispartofUMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsPublic Domain Mark 1.0*
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleTHE ALGOL TRIPLE SYSTEM SPATIALLY RESOLVED AT OPTICAL WAVELENGTHSen_US
dc.typeTexten_US


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This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
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