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"Orbiting astronomical observatories."
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The Hubble cosmos : 25 years of new vistas in space
This title celebrates NASA's Hubble Space Telescope and its 25 years of accomplishments.
Book
The ghost in the telescope : stories from the Herschel Space Observatory
\"The Ghost in the Telescope is an insider's account of the Herschel Space Observatory, which was built to answer the questions of how the stars and galaxies were born. Written in an engaging manner for a general audience, the book tells the stories of the telescope itself, the discoveries it made, and the engineers and astronomers who made and used it. The book, based on the author's own experience and interviews with the key astronomers and engineers, tells the story of the mission, from its original concept on a piece of paper in Venice to the moment after the end of the mission when the engineers had to decide whether to crash the spacecraft into the Moon. Containing some of the most spectacular pictures ever taken of the universe, the book describes all the major discoveries made with the telescope. The book also gives an account, accessible to anyone without previous scientific knowledge, of the latest research into the births of stars and galaxies. The book should interest anyone who is curious about astronomy, space missions, and how astronomy is done in practice. It is designed to be easy to read and does not require any previous scientific background\"-- Provided by publisher.
BOOK
The Universe in a Mirror
The Hubble Space Telescope has produced the most stunning images of the cosmos humanity has ever seen. It has transformed our understanding of the universe around us, revealing new information about its age and evolution, the life cycle of stars, and the very existence of black holes, among other startling discoveries. But it took an amazing amount of work and perseverance to get the first space telescope up and running.The Universe in a Mirrortells the story of this telescope and the visionaries responsible for its extraordinary accomplishments.
Robert Zimmerman takes readers behind the scenes of one of the most ambitious scientific instruments ever sent into space. After World War II, astronomer Lyman Spitzer and a handful of scientists waged a fifty-year struggle to build the first space telescope capable of seeing beyond Earth's atmospheric veil. Zimmerman shows how many of the telescope's advocates sacrificed careers and family to get it launched, and how others devoted their lives to Hubble only to have their hopes and reputations shattered when its mirror was found to be flawed. This is the story of an idea that would not die--and of the dauntless human spirit. Illustrated with striking color images,The Universe in a Mirrordescribes the heated battles between scientists and bureaucrats, the perseverance of astronauts to repair and maintain the telescope, and much more. Hubble, and the men and women behind it, opened a rare window onto the universe, dazzling humanity with sights never before seen.
This book tells their remarkable story. A new afterword updates the reader on the May 2009 Hubble service mission and looks to the future of astronomy, including the prospect of a new space telescope to replace Hubble.
eBook
Finite Element Analysis of Electrostatic Coupling in LISA Pathfinder Inertial Sensors
In the LISA Pathfinder (LPF) mission, electrostatic noise can reach the femto-Newtonian level despite the fact that the LPF’s sensors are equipped with potential shielding. Most of the existing simulation studies focus on the electrostatic edge effect and related fields, while the simulation study of the patch effect is neglected. For that reason, this paper analyzes the basic principle of electrostatic noise and constructs a simulation model for studying the coupling effects of a TM’s residual charge and stray bias voltage. The patch effect and other perturbation factors are simulated by the simulation model with finite element operation, focusing on the suppression effect of the protective ring on the edge effect, the realization of the patch effect in the simulation model, and the possible influence. The results show that electrode area and the spacing between the electrode and the TM together limit the suppression effect of the protective ring on the edge effect. The spatial and temporal variations of the patch effect significantly affect the distributed electric field between the electrodes and the TM, as well as the charge distribution density of the TM. In the worst-case scenario of LPF electrostatic input parameters, the electrostatic noise is about 1.03 × 10−15 m/s2/√Hz at 1 mHz, which is about 6% different from the expected performance estimate. Finally, considering the limitations of multiple environmental factors on the inertial sensors, the present model will be useful to explore the interactive effects of multi-field coupling and to further investigate the impact of low-energy electron charging on the performance of the inertial sensors.
Journal Article