Lagrange / Mourard / Léna High Angular Resolution in Astrophysics

Erscheinungsjahr 2012
ISBN: 978-94-009-0041-7
Verlag: Springer Netherland
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, Band 501, 420 Seiten, eBook

Reihe: Nato Science Series C:

Over the last decade many efforts have been made to develop high angular resolution techniques in astrophysics. Combined with imaging facilities, they have rapidly proved their efficiency and have already led to major astrophysical results. During the decade to come, astronomers will be offered new, even more sophisticated high angular resolution tools, especially in the IR and optical domains, coupled with much bigger telescopes, either on the ground or in space. In such a context of rapidly evolving techniques and a growing need for higher angular resolution to test theories or discover new objects, the present book reviews both instrumental and scientific aspects. The main questions addressed are: what kind of science will benefit from high angular resolution techniques? How can they best be used? Audience: The book is accessible to students and research workers in both instrumental and astrophysical aspects.

Zielgruppe

Research

Autoren/Hrsg.

Lagrange, A.

Mourard, Denis

Léna, Pierre

Inhaltsverzeichnis

High Angular Resolution Instrumentation.- An introduction to atmospheric turbulence.- Design of arrays for ground based optical interferometry.- Kilometric baseline interferometry.- Observing with optical/infrared long baseline interferometers.- Imaging in interferometry.- Astrometry with O/IR interferometers.- Image reconstruction: from basic notions towards methodological strategies.- Radio interferometry.- Very long baseline interferometry.- Laser guide star.- Astrophysics and High Angular Resolution.- Solar-system studies at high angular resolution.- Circumstellar material around main sequence and evolved stars.- Life on extra-solar planets.- High angular resolution studies of starburst galaxies.- Oral Contributions.- A new detector for wavefront sensing in adaptive optics applications.- Factors affecting the performance of stellar interferometers: application to the VLTI error budgets.- Optical interferometry and ground-based astrometry after the Hipparcos mission.- Improving the natural guide star magnitude limit for wavefront sensing in an open loop system.- Dispersion compensation and fringe tracking.- Local piston detection of a segmented mirror telescope with curvature sensing of wavefronts affected by atmospheric turbulence. Numerical simulations.- The first Caltech-Jodrell bank VLBI survey: a morphological classification scheme of powerful radio sources.- Adaptive optics imaging of the pre-main sequence star YY Orionis.- Detecting disks around young stellar objects with infrared interferometers.- Detection of circumstellar dust shell around supergiant TV Gem from milliarcsecond resolution near infrared observations.- Combined HST and HAR imaging and photometry of eruptive binaries in globular cluster cores: based upon observations taken with the William Herschel Telescope on La Palma and the Hubble Space Telescope.- An indirect search for low-mass companions to distant stars.