X-ray Astronomy and the Chrism Telescope

What is one of the main reasons x-rays are associated with the 'hot universe'?

• They are emitted by extremely hot gas in galaxy clusters.

• They are produced by low-energy events.

• They are emitted by cold gas in space.

• They are visible in optical telescopes.

Which organizations are collaborating to launch the Chrism x-ray space telescope?

• ISRO, NASA, and ESA

• CNSA, NASA, and ESA

• JAXA, NASA, and ESA

• NASA, ESA, and Roscosmos

Why do x-ray missions need to be sent into orbit?

• X-rays are absorbed by water vapor in the atmosphere.

• X-rays can only be detected during the day.

• The Earth's atmosphere blocks x-rays from space.

• X-rays are too weak to be detected on Earth.

What is the purpose of the nested mirrors used in x-ray telescopes?

• To reflect x-rays at shallow angles for detection.

• To increase the weight of the telescope.

• To focus visible light more effectively.

• To allow x-rays to pass through without reflection.

What is the function of the Extend instrument on the Chrism telescope?

• To measure the spin of black holes.

• To cool the telescope's detectors.

• To provide a wide field of view for imaging.

• To split x-ray light into its components.

How does the Resolve instrument detect specific elements in x-ray sources?

• By using a high-energy laser.

• By using a large array of mirrors.

• By splitting x-ray light like a prism.

• By heating the x-ray sources.

Why must the Resolve instrument's detectors be kept extremely cold?

• To reduce thermal noise for accurate measurements.

• To prevent the telescope from overheating.

• To increase the speed of data processing.

• To protect the detectors from cosmic rays.

What is one of the scientific questions the Chrism telescope aims to explore?

• The formation of the solar system.

• The movement of tectonic plates.

• The behavior of extreme gravitational fields around black holes.

• The composition of Earth's atmosphere.

How does observing galaxy clusters in x-rays differ from optical observations?

• X-rays are less effective in detecting distant galaxies.

• X-rays show more stars than optical telescopes.

• X-rays reveal the presence of hot gas, which is the majority of the cluster's matter.

• X-rays provide a clearer image of individual galaxies.

What does the presence of hot gas in galaxy clusters suggest about the universe's matter?

• Most matter is in the form of dark energy.

• Most matter is in the form of black holes.

• Most matter is in the form of stars and planets.

• Most matter is in the form of hot gas.