R. Bacon – Optical 3D-Spectroscopy for Astronomy (2017)

Автор: R. Bacon
Название книги: Optical 3D-Spectroscopy for Astronomy
Формат: PDF
Жанр: Астрофизика
Страницы: 243
Качество: Изначально компьютерное, E-book

The development of astronomy has gone hand in hand with advances in technology. A celebrated step was taken by Galileo Galilei in 1609 when he used the newly invented telescope to observe the night sky and discovered mountains on the Moon, the phases of Venus, and four moons orbiting Jupiter. This revolutionized our world view, and was made possible by the increased light-gathering power and image sharpness provided by the 5 cm telescope lens compared to using the naked eye.
Since then, a number of such transformational steps enabled by new technology have occurred. The move from the lenses of refracting telescopes to the mirrors of reflecting telescopes allowed those telescopes to be of much larger diameter. Replacing the human eye as the detector behind the telescope, first with photographic plates and subsequently with almost perfectly sensitive electronic detectors, made it possible to collect light over time and hence observe much fainter objects. Dispersing the light into a spectrum revealed the physical nature of objects through the study of absorption and emission lines. The detection of infrared light and radio waves from the ground expanded astronomers’ view beyond the wavelengths of visible light, and the launch of telescopes into space gave access to the entire electromagnetic spectrum. With the ability to detect particles and, most recently, gravitational waves emitted by celestial
Contents
3D Instrumentation
The Spectroscopic Toolbox
Multiobject Spectroscopy
Scanning Imaging Spectroscopy
Integral Field Spectroscopy
Recent Trends in Integral Field Spectroscopy
Comparing the Various 3D Techniques
Future Trends in 3D Spectroscopy
Using 3D Spectroscopy
Data Properties
Impact of Atmosphere
Data Gathering
Data Reduction
Data Analysis
Conclusions