How can astronomers determine the composition of a distant star or gas cloud?
How do astronomers determine the composition of a distant star or gas cloud ?
How can astronomers determine the composition of a distant star or gas cloud?
Radio astronomers detect electromagnetic radiation at 45 MHz form an interstellar gas cloud. They suspect this radiation is emitted by electrons spiraling in a magnetic field. What is the magnetic field strength in the gas cloud?
Radio astronomers detect electromagnetic radiation at 42.0 MHz from an interstellar gas cloud. They suspect this radiation is emitted by electrons spiraling in a magnetic field. Part A What is the magnetic field strength inside the gas cloud? Express your answer with the appropriate units.
please help will rate highly if correct On February 23, 1987 astronomers noticed that a relafively faint star in the Tarantula Nebula in the Large Magellanic Cloud suddenly became so bright that it could be seen with the naked eye. Astronomers suspected that the star exploded as a supernova. Late-stage stars eject material that forms a ring before they explode as supernovas. The ring is at first invisible. However, following the explosion the light from the supernova reaches the ring....
Radio astronomers detect electromagnetic radiation at 44.0 MHz from an interstellar gas cloud. They suspect this radiation is emitted by electrons spiraling in amagnetic field.What is the magnetic field strength inside the gas cloud?
Astronomers observe a neutron star of radius 7.10 km and determine that it’s rotating at 21.9 rpm. If the stellar core that collapsed to form the neutron star was originally rotating with a period of 49.3 days, what was its radius?
How can astronomers use the Doppler Effect to detect the presence of an exoplanet around a star? Try to be as clear as possible about what is measured and how that is interpreted. .
For exoplanets that can be observed with both the Doppler Method and Transit Method, astronomers can determine what? : Group of answer choices evidence for liquid oceans average temperature on the surface composition of the atmosphere average density of the planet material
Astronomers have discovered a planetary system orbiting a star, which is at a distance of 5.2 × 1018 m from the earth. One planet is believed to be located at a distance of 1.9 × 1010 m from the star. Using visible light with a vacuum wavelength of 557 nm, what is the minimum necessary aperture diameter that a telescope must have so that it can resolve the planet and the star?
Astronomers have discovered a planetary system orbiting a star, which is at a distance of 3.9 × 1019 m from the earth. One planet is believed to be located at a distance of 1.9 × 1010 m from the star. Using visible light with a vacuum wavelength of 543 nm, what is the minimum necessary aperture diameter that a telescope must have so that it can resolve the planet and the star?
11. Astronomers observing a distant galaxy detect light from the Lyman a transition (n = 2 → n = 1 in hydrogen) at a frequency of 2.25 x 1015 Hz. Estimate how far away the galaxy is. (You may take the Hubble constant to be 70kms- Mpc) A supernova causes a sudden brightening of the galaxy, which lasts for forty days as seen from Earth. How long did it last in the rest-frame of the galaxy? 11. Astronomers observing a...