, This is the updated, widely revised, restructured and expanded third
edition of Léna et al.'s successful work Observational Astrophysics. It
presents a synthesis on tools and methods of observational astrophysics
of the early 21st century. Written specifically for astrophysicists and
graduate students, this textbook focuses on fundamental and sometimes
practical limitations on the ultimate performance that an astronomical
system may reach, rather than presenting particular systems in detail.
In little more than a decade there has been extraordinary progress in
imaging and detection technologies, in the fields of adaptive optics,
optical interferometry, in the sub-millimetre waveband, observation of
neutrinos, discovery of exoplanets, to name but a few examples.
The work deals with ground-based and space-based astronomy and their
respective fields. And it also presents the ambitious concepts behind
space missions aimed for the next decades. Avoiding particulars, it
covers the whole of the electromagnetic spectrum, and provides an
introduction to the new forms of astronomy becoming possible with
gravitational waves and neutrinos. It also treats numerical aspects of
observational astrophysics: signal processing, astronomical databases
and virtual observatories.