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Observational Techniques
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High-Energy Astrophysics
High-energy astrophysics explores the universe through detection of X-rays, gamma rays, and cosmic rays, uncovering processes involving high energies like those seen in supernovae and black holes.
Adaptive Optics
Adaptive optics corrects distortions in astronomical images caused by Earth's atmosphere. It's crucial for ground-based telescopes to achieve images as if they were taken from space.
Spectroscopy
Spectroscopy involves measuring the spectrum of an object's light to identify its composition, temperature, density, and velocity. It's essential for studying the chemical makeup of celestial bodies.
Radio Astronomy
Radio astronomy studies celestial objects by detecting radio waves they emit, providing insights into phenomena like cosmic microwave background radiation and the structure of galaxies.
Photometry
Photometry is the measurement of the flux or intensity of an astronomical object's light. It is used to determine the brightness, distance, and composition of stars and galaxies.
Interferometry
Interferometry combines signals from multiple telescopes to simulate a larger aperture, enhancing resolution. It's widely used for high-precision astrometry and imaging of celestial bodies.
Time-Series Photometry
Time-series photometry involves measuring the brightness of an object repeatedly over time. It's used to detect exoplanets, variable stars, and to study stellar rotation and pulsations.
Ultraviolet Astronomy
Ultraviolet astronomy involves observing celestial objects in the ultraviolet spectrum, providing insights into high-temperature processes and the chemical evolution of galaxies and stars.
Astrometry
Astrometry is the study of the positions and movements of celestial bodies. It helps in determining object distances, proper motions, and to infer the gravitational influences of dark matter.
Infrared Astronomy
Infrared astronomy studies astronomical objects in the infrared part of the electromagnetic spectrum, which reveals phenomena obscured by dust and cold objects not detectable in visible light.
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