7 research outputs found

    Toward Understanding the B[e] Phenomenon. II. New Galactic FS CMa Stars

    Get PDF
    FS CMa stars form a group of objects with the B[e] phenomenon that were previously known as unclassified B[e] stars or B[e] stars with warm dust (B[e]WD) until recently. They exhibit strong emission-line spectra and strong IR excesses, most likely due to recently formed circumstellar dust. These properties have been suggested to be due to ongoing or recent rapid mass exchange in binary systems with hot primaries and various types of secondaries. The first paper of this series reported an analysis of the available information about previously known Galactic objects with the B[e] phenomenon, the initial selection of the FS CMa group objects, and a qualitative explanation of their properties. This paper reports the results of our new search for more FS CMa objects in the IRAS Point Source Catalog. We present new photometric criteria for identifying FS CMa stars as well as the first results of our observations of nine new FS CMa group members. With this addition, the FS CMa group has now 40 members, becoming the largest among the dust-forming hot star groups. We also present nine objects with no evidence for the B[e] phenomenon, but with newly discovered spectral line emission and /or strong IR excesses.Fil: Miroshnichenko, A. S.. The University Of North Carolina At Greensboro; Estados UnidosFil: Manset, N.. Canada France Hawaii Telescope; Estados UnidosFil: Kusakin, A.V.. Lomonosov Moscow State University; Rusia. Fesenkov Astrophysical Institute; RusiaFil: Chentsov, E.L.. Russian Academy Of Sciences; RusiaFil: Klochkova, V. G.. Russian Academy Of Sciences; RusiaFil: Zharikov, S. V.. Universidad Nacional Autónoma de México; MéxicoFil: Gray, R. O.. Appalachian State University (appstate);Fil: Grankin, K. N.. Ulugh Beg Astronomical Institute Uzbekistan Academy Of Sciences; UzbekistánFil: Gandet, T. L.. Lizard Hollow Observatory; Estados UnidosFil: Bjorkman, K. S.. University Of Toledo (utoledo); Estados UnidosFil: Rudy, R. J.. The Aerospace Corporation; Estados UnidosFil: Lynch, D. K.. The Aerospace Corporation; Estados UnidosFil: Venturini, C. C.. The Aerospace Corporation; Estados UnidosFil: Mazuk, S.. The Aerospace Corporation; Estados UnidosFil: Puetter, R. C.. University of California at San Diego; Estados UnidosFil: Perry, R. B.. National Aeronautics and Space Administration; Estados UnidosFil: Levato, Orlando Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; ArgentinaFil: Grosso, Monica Gladys. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; ArgentinaFil: Bernabei, S.. Istituto Nazionale di Astrofisica; ItaliaFil: Polcaro, V. F.. Istituto Nazionale di Astrofisica; ItaliaFil: Viotti, R. F.. Istituto Nazionale di Astrofisica; ItaliaFil: Norci, L.. Dublin City University; IrlandaFil: Kuratov, K. S.. Fesenkov Astrophysical Institute; Kazajistá

    The composition and structure of cluster local controller in an automated management system of oil production

    No full text
    Рассмотрен состав и структура локального кустового контроллера, работающего в автоматизированной системе нефтедобычи. Описаны основные функции, реализуемые контроллером как при обмене с программным обеспечением "верхнего" уровня, так и с абонентами локальной кустовой сети. Рассмотрены вопросы состава информационной базы, позволяющей вести историю параметров и событий в системе для контролируемого технологического оборудования.Розглянуто склад і структура локального кущового контролера, що працює в автоматизованій системі нафтовидобутку. Описані основні функції, реалізовані контролером як при обміні з програмним забезпеченням "верхнього" рівня, так і з абонентами локальної кущовий мережі. Розглянуті питання складу інформаційної бази, яка дозволяє вести історію параметрів і подій в системі для контрольованого технологічного обладнання.The composition and structure of the local controller of cluster operating in the automated system for oil production. Describes the main functions performed by the controller as an exchange with the software "top" level, and to subscribers of the local network. The problems of the infobase, allowing to keep a history of parameters and events in the system for the controlled production equipment are consider
    corecore