9780792371458 - post-agb objects as a phase of stellar evolution (astrophysics and space science library, band 265) (3 Ergebnisse)
Sprache: Englisch
Verlag: Springer, 2001
Serie: Astrophysics and Space Science Library, Buch 141 von 228. Buch 141 von 228 - Astrophysics and Space Science Library
- Hardcover
Anbieter: Ria Christie Collections, Uxbridge, Vereinigtes KönigreichRia Christie Collections
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Zustand: New. In.
Sprache: Englisch
Verlag: Springer Netherlands, Springer Netherlands, 2001
Serie: Astrophysics and Space Science Library, Buch 141 von 228. Buch 141 von 228 - Astrophysics and Space Science Library
- Hardcover
Anbieter: AHA-BUCH GmbH, Einbeck, DeutschlandAHA-BUCH GmbH
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Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - The term proto-planetary nebulae (PPNe) in the context of the late stages of stellar evolution was created only slightly more than 20 years ago to express the belief that in the near future these objects will become planetary nebulae (PNe). The first proto-…planetary nebulae (called also post-Asymptotic Giant Branch, or shortly post-AGB objects) AFGL 2688 and AFGL 618 were discovered in mid seventies in course of the Air Force Sky Survey. Investigation of this phase of stellar evolution developed very rapidly in 1980's after the IRAS mission when it became clear that proto-planetary nebulae emit a significant part of their energy in the mid-and far-infrared. Hundreds of new candidates have been proposed but the recognition of the real proto-planetary nebulae is not a simple task and needs a substantial effort to exclude cases that represent different evolutionary stages. High resolution spectroscopy of stellar atmospheres is of much importance in this respect. Surprisingly, only a small group of central stars, the so called 21 11m emitters, show chemical signatures of the 3 rd dredge up process. Very recently, a more detailed studies of mid-infrared spectra from the Infrared Space Observatory (ISO) allow for a better understanding of chemical composition and evolution of circumstellar material around these stars. A new impetus in the field of proto-planetary nebulae research was started in the 1990's with high spatial resolution imaging in mid-infrared and optical wavelength ranges.
Sprache: Englisch
Verlag: Kluwer Academic Publishers, 2001
Serie: Astrophysics and Space Science Library, Buch 141 von 228. Buch 141 von 228 - Astrophysics and Space Science Library
- Hardcover
Anbieter: Kennys Bookstore, Olney, MD, USAKennys Bookstore
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Zustand: New. Proceedings of the Torun Workshop held July 5-7, 2000 Series: Astrophysics and Space Science Library. Num Pages: 469 pages, biography. BIC Classification: PGM. Category: (P) Professional & Vocational; (UP) Postgraduate, Research & Scholarly. Dimension: 235 x 155 x 26. Weight in Grams: 840. . 2001. 2001st Edition. h…ardcover. . . . . Books ship from the US and Ireland.
