First Surface‐resolved Results with the Infrared Optical Telescope Array Imaging Interferometer: Detection of Asymmetries in Asymptotic Giant Branch Stars
| العنوان: | First Surface‐resolved Results with the Infrared Optical Telescope Array Imaging Interferometer: Detection of Asymmetries in Asymptotic Giant Branch Stars |
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| المؤلفون: | David Malin, Rafael Millan-Gabet, F. P. Schloerb, Wesley A. Traub, P. Kern, Michael R. Pearlman, W. D. Cotton, John D. Monnier, P. Labeye, Ettore Pedretti, J. P. Berger, Charles H. Townes, Fabien Malbet, K. Perraut, S. Ragland, Gary Wallace, Kamal Souccar, W. C. Danchi, Nathaniel P. Carleton, P. Haguenauer, M. G. Lacasse, M. Brewer, Lee Anne Willson |
| المساهمون: | Laboratoire d'Astrophysique de Grenoble (LAOG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | The Astrophysical Journal The Astrophysical Journal, American Astronomical Society, 2006, 652, pp.650. ⟨10.1086/507453⟩ |
| بيانات النشر: | American Astronomical Society, 2006. |
| سنة النشر: | 2006 |
| مصطلحات موضوعية: | Physics, Brightness, 010504 meteorology & atmospheric sciences, media_common.quotation_subject, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, Asymmetry, Stars, Wavelength, Interferometry, Space and Planetary Science, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, Asymptotic giant branch, Angular resolution, Astrophysics::Earth and Planetary Astrophysics, Infrared Optical Telescope Array, 010303 astronomy & astrophysics, Caltech Library Services, Astrophysics::Galaxy Astrophysics, 0105 earth and related environmental sciences, media_common |
| الوصف: | International audience; We have measured nonzero closure phases for about 29% of our sample of 56 nearby asymptotic giant branch (AGB) stars, using the three-telescope Infrared Optical Telescope Array (IOTA) interferometer at near-infrared wavelengths (H band) and with angular resolutions in the range 5-10 mas. These nonzero closure phases can only be generated by asymmetric brightness distributions of the target stars or their surroundings. We discuss how these results were obtained and how they might be interpreted in terms of structures on or near the target stars. We also report measured angular sizes and hypothesize that most Mira stars would show detectable asymmetry if observed with adequate angular resolution. |
| وصف الملف: | application/pdf |
| تدمد: | 1538-4357 0004-637X |
| DOI: | 10.1086/507453 |
| DOI: | 10.1086/507453⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f36f711fda4b5fee75c01105717bb74f https://doi.org/10.1086/507453 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....f36f711fda4b5fee75c01105717bb74f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15384357 0004637X |
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| DOI: | 10.1086/507453 |