共查询到20条相似文献,搜索用时 15 毫秒
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Henny J. G. L. M. Lamers 《Space Science Reviews》1999,89(3-4):692-692
The B[e] stars are early type stars with hydrogen emission lines, forbidden [FeII] and [OI] emission lines, and with an IR
excess due to circumstellar dust. These properties may occur in stars of quite different evolutionary stages. In fact, the
group of B[e] stars is very inhomogeneous, and contains pre-main sequence stars, supergiants with disks, compact planetary
nebulae, symbiotic stars, and a group of stars with unclear evolutionary phase. The book gives the proceedings of a workshop
in Paris in 1997 in which the properties and evolutionary phases of the B[e] stars are discussed. It contains chapters on:
(1) the definition of B[e] stars, (2) distances, kinematics and the distribution in our Galaxy, (3) spectroscopy, (4) infrared
properties, (5) photometry, polarimetry and variability, (6) models for winds and disks, (7) evolutionary stages, (8) revised
classification of B[e] stars. The book ends with an object list of all B[e] stars. The book is very useful for students and
researchers of hot star winds and gives nice overviews of the observations and theories and remaining puzzles of these strange
objects with winds and outflowing dust-forming disks.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
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Cornelis de Jager 《Space Science Reviews》1999,89(3-4):693-693
The proceedings of a conference dealing with only one piece of observational activity: the deepest optical image obtained by the HST during a 150 orbit observational program. The main result, presented in several papers, is that we are now able to witness the period of galaxy formation. Very readable too is Allan Sandage's historical review, being the introductory paper to the meeting. This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
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Giancarlo Setti 《Space Science Reviews》1999,89(3-4):691
This book concerns the publication of the proceedings of an IAU Symposium held in Tokio in the summer of 1997. As implied
by the title, it provides an overall review of our knowledge on all aspects of high-energy phenomena occurring in the universe
obtained via the observations in X- and gamma-rays with orbiting satellites. It contains 44 invited (4 pages each) and 132
(2 pages each) contributed papers covering: Sun, stars, supernovae and their remnants, galaxies and their clusters, white
dwarfs and neutron stars, black hole binaries, active galactic nuclei, gamma-ray bursts, large scale structure and hot intergalactic
medium, and a chapter on future space programs in X- and gamma-ray astronomy. Many of the contributions have since appeared
in the astronomical literature. The invited reviews, although very concise, are generally valuable in presenting the most
relevant points of the various subjects. The book is for professional astronomers and may serve as a quick and very useful
reference to becoming acquainted with the main developments in the field of high-energy astrophysics beginning of 1998.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
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Giancarlo Setti 《Space Science Reviews》1999,89(3-4):691-691
This volume contains the proceedings of the NATO Advanced Study Institute on Polar Cap Boundary Phenomena held at Longyearbyen, Svalbard, Norway on June 4–13, 1997, which was the third NATO Workshop on magnetospheric boundary phenomena observable at high latitudes. Svalbard has a uniquely interesting location from observational point of view in that the dayside aurora can be observed there in the noon local time sector during the midwinter. The Norwegian groups working at Svalbard were the organisers of this third workshop as well as of the two earlier ones, but only this third one was held at Svalbard. It was attended by 86 space physicists from all over the world. The book contains 36 papers, of which the majority were presented as invited papers at the workshop, a few were contributed papers and the last paper in the volume gives a summary of the content of the workshop. As emphasized in both the Foreword and the Summary chapter of the book, the research field of the polar cap and its boundaries to other magnetospheric regions at high latitudes is one that has seen a fast development in the last ten years. This is to a great deal due to the research work done at Svalbard in combination with satellite measurements and theory development. The review in these proceedings provide also the non-specialist reader with good summaries of where different research questions stand at present. This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献