Results 281 to 290 of about 74,003 (312)

Integral methods in astronomical spectroscopy

Astrophysical Bulletin, 2010
We discuss the milestones of development of the integral methods used in the optical spectroscopy of astronomical objects. We analyze the reasons why some of these methods did not get wide practical application. We demonstrate that a combination of integral methods with multichannel detectors allow increasing the efficiency of the existing astronomical
V. E. Panchuk, M. E. Sachkov, M. V. Yushkin, M. V. Yakopov   +3 more
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Astronomical Spectroscopy

2005
Why Record Spectra of Astronomical Objects? The Nature of Spectra Atomic Hydrogen Complex Atoms Helium Spectra Alkali Atoms Spectra of Nebulae X-Ray Spectra Molecular Structure Molecular ...
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Amateur Astronomical Spectroscopy

2013
The goal of astronomical spectroscopy is to produce a wavelength calibrated line profile of the spectrum of an astronomical object, usually a star. From this line profile of the spectrum image, wavelengths can be measured as well as equivalent widths. Stellar and supernova classifications can be done.
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Optical Astronomical Spectroscopy

1995
Preface Atomic Processes INTRODUCTION TO SPECTROSCOPY Historical background Types of spectroscopy THE PHYSICS OF ATOMS AND MOLECULES Sommerfeld's refinements Space quantization Atomic structure Other viewpoints Quantum/wave mechanics ATOMIC ENERGY LEVELS Multiple electron atoms ^IL-S coupling Space quantization Term formation Closed shells and ...
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Astronomical Spectroscopy Projects

2013
Some people feel that it necessary to observe and do spectroscopy on faint stars and stars that have not been observed in detail by others. While this is certainly a worthy goal, it does not work well for small observatories. Because spectroscopy spreads the light out, taking spectroscopic images of faint objects requires very large telescopes to ...
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Infrared Astronomical Spectroscopy

1978
Spectroscopic instruments are designed to divide radiation into its component wavelengths (or frequencies) and to provide the observer with a display of this information at high signal-to-noise ratio (SNR).
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Astronomical Spectroscopy

Abstract The chapter begins with a discussion of star formation from dark interstellar clouds illustrated with radio telescope spectra. The classification of stars and brown dwarfs from their spectra is presented. The chapter concludes with spectra of planets and their moons, and exoplanets.
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Lasers in astronomical spectroscopy-1

Optics Technology, 1970
Abstract In contrast to most other methods of spectroscopy, where electronics is becoming increasingly important at the recording end of the measurement process, it is possible to construct a spectrographic device using electronics also directly on the receiving side.
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Astronomical Spectroscopy

2021
Peter A. R. Ade, Griffin Matthew J., Carole E. Tucker   +2 more
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Trends in Astronomical Spectroscopy

1975
A brief survey is made of improvements in spectroscopic data analysis in recent years. The need for accurate observational material is stressed, especially with the highly efficient receivers now available. A few problems that will be studied for many years are considered: stellar evolution and nucleogenesis, stellar atmospheres and chromospheres ...
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