Astronomy Astrophysics

An Introduction to Optical Stellar Interferometry by A. Labeyrie

By A. Labeyrie

Over the past 20 years, optical stellar interferometry has develop into a huge device in astronomical investigations requiring spatial answer well past that of conventional telescopes. This e-book, first released in 2006, used to be the 1st to be written at the topic. The authors supply a longer creation discussing uncomplicated actual and atmospheric optics, which establishes the framework essential to current the guidelines and perform of interferometry as utilized to the astronomical scene. They stick with with an summary of ancient, operational and deliberate interferometric observatories, and a variety of significant astrophysical discoveries made with them. eventually, they current a few as-yet untested rules for tools either at the floor and in house that can let us snapshot info of planetary structures past our personal.

Show description

Read Online or Download An Introduction to Optical Stellar Interferometry PDF

Similar astronomy & astrophysics books

Quirky Sides of Scientists: True Tales of Ingenuity and Error from Physics and Astronomy (2007)(en

Those historic narratives of clinical habit display the usually irrational method scientists arrive at and verify their theories. There are tales of Einstein's stubbornness top him to reject an accurate interpretation of an scan and pass over a major deduction from his personal concept, and Newton lacking the $64000 deduction from one in every of his so much celebrated discoveries.

Measure Solar System Objects and Their Movements for Yourself!

Rather than taking somebody's be aware in regards to the simple dimension and distances for the sun system's items, this ebook exhibits beginner astronomers easy methods to degree this stuff for themselves. this can be an enriching event for any beginner astronomer - to appreciate and in my opinion degree primary astronomical amounts and distances.

Mathematical Astronomy Morsels

Mathematical Astronomy Morsels. Jean Meeus's explores the frequency of blue moons, planetary groupings, and greatly extra, as purely this grasp of astronomical calculations might. right here, he has introduced jointly the easiest from his voluminous writings, spanning approximately part a century, on each kind of celestial configuration, cycle, and interest.

The Observer's Guide to Planetary Motion: Explaining the Cycles of the Night Sky

To the bare eye, the main obvious defining function of the planets is their movement around the evening sky. It was once this movement that allowed old civilizations to unmarried them out as diversified from mounted stars. “The Observer’s consultant to Planetary movement” takes each one planet and its moons (if it has them) in flip and describes how the geometry of the sun approach offers upward push to its saw motions.

Extra resources for An Introduction to Optical Stellar Interferometry

Example text

However, in practice, telescopes operating on the ground, observing through the Earth’s turbulent atmosphere, are limited by atmospheric turbulence. 1 2 Introduction The inherent or diffraction-limited angular resolution limit of a telescope is determined by the ratio λ/D between the wavelength, λ, of the light used for the observation and the diameter, D, of the telescope aperture. A 10-m telescope, like the Keck telescopes on Mauna Kea in Hawaii, has an inherent angular resolution limit of about 10 milli-arcseconds in visible light (λ = 500 nm).

5 · 10−7 ) ≈ 2 m. That is what makes astronomical interferometry in the visible so difficult and has presented many technical problems, some of which have only recently been overcome. In the rest of this chapter and the two which follow, we shall introduce the concepts which allow us to make the above discussion quantitative, and to turn what might be considered a rough method of estimating stellar diameters into a means of obtaining stellar images with resolution much greater than that of any single-aperture telescope.

Indeed, it is usually associated with the motion of a drunk pedestrian shifting direction randomly at each step. As can be realized, even without drinking, the final distance from the starting point can amount to any value between zero and the sum of the step lengths, in any orientation (phase). These are the dark and bright speckles. 7 shows a representation of this experiment, in which several plane waves coming from random directions overlap. 3 Electromagnetic waves and photons 19 Fig. 7. Speckle pattern amplitude resulting from the superposition of 17 real-valued plane waves with random phases traveling in random directions.

Download PDF sample

Rated 4.17 of 5 – based on 4 votes