The Electromagnetic Spectrum Astrophysics Astrophysics Basics The Electromagnetic Spectrum Questions What causes gamma ray bursts? How are gamma ray bursts classified? How do gamma ray bursts affect earth? How far do gamma ray bursts travel? When the ultraviolet light from hot stars in very distant galaxies finally reaches us, it arrives at Earth in what form? What does ultraviolet light from hot stars in very distant galaxies reaches us in the form of? What are some advantages and disadvantages for using an ultraviolet telescope? Why is at better/easier or harder to use a UV telescope than another telescope like a radio telescope or an infrared telescope? How is imaging spectroscopy used in astronomy? What is spectroscopy? How does it detect the electromagnetic spectrum? What techniques are used to study the electromagnetic spectrum in space? How does spectrometry detect the electromagnetic spectrum? Who developed the maser? What is a maser? Who developed it? How do masers work compared to a laser? How does a maser measure the electromagnetic spectrum? How are masers and lasers similar? What is the smallest elementary particle? What are elementary particles? What are the elementary particles of nuclear physics? How are elementary particles detected? How can elementary particles decay? What is astroparticle physics? What are the main areas of study in astroparticle physics in relation to astrophysics? How do astrophysicists study astroparticles? What are astroparticles? Why does electromagnetic radiation in the ultraviolet region represent a larger energy transition than does radiation in the infrared region? How dangerous is electromagnetic radiation? What type of radiation is the electromagnetic spectrum? What is polarization? How is it related to the study of astronomy? What types of waves can be polarized? How are polarized waves of light studied? What is Rayleigh scattering? What is the difference between scattering and reflection? What is scattering of light? What is scattering angle? Light from the sun travels through space to Earth's atmosphere. What will light waves do when they move from empty space into matter made up of different gases? Can radio waves be used as a form of x-ray? Mobile phones send and receive data through electromagnetic waves. When a wave is emitted from a phone, the wave is received at the other end. What happens to the wave after that? What is the difference between electromagnetic waves and other waves? Why is sound not classified as an electromagnetic wave? How do electromagnetic waves travel? How do electromagnetic waves travel? What causes electromagnetic waves? What types of waves are in the electromagnetic spectrum? A space-based telescope can achieve a diffraction-limited angular resolution of 0.14 for red light (wavelength 650 nm). What would the resolution of the instrument be in the ultraviolet, at 150nm ? What instruments are used to measure electromagnetic waves? What is an interferometer? How are interferometers used to measure electromagnetic waves? Other than at the visible spectrum, when are most forms of electromagnetic radiation best studied? Do Brown Dwarfs emit visible light? What are some advantages and disadvantages of Michelson Interferometer? What is interferometry? What does interferometric mean? What is interferometric acuity? What is interferometric coherence? How do we hold objects (such as keys, books or anything else) if we have never touched anything? In which layer of the atmosphere are the ionized particles that cause the aurora borealis? Astrophysics Basics View all chapters The Electromagnetic Spectrum Blackbody Radiation Luminosity, Effective Temperature, Flux and Magnitudes Blotzmann and Saha Equations Spectral Classification of Stars The Hertzsprung-Russell Diagram Next