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Consider the following statements regarding the Siena Galaxy Atlas:
- It is a digital atlas created to understand universe through several galaxies.
- It was prepared by using the data from the Indian Astronomical Observatory of Hanle.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements regarding the Siena Galaxy Atlas: It...
Recently, astronomers have created a beautiful atlas of 400,000 galaxies in the cosmic neighbourhood of Milky Way and named it as the Siena Galaxy Atlas.
- It is a digital atlas that was created to get to know our universe better through several of the known galaxies.
- It was created using data from three astronomical surveys collected between 2014 and 2017 at Cerro Tololo Inter-American Observatory (CTIO) and Kitt Peak National Observatory (KPNO). Together these surveys are known as the DESI Legacy Surveys.
- How is it different from other atlases?
- It is dependent on state-of-the-art digital images captured by advanced technology, unlike previous atlases which relied on antiquated equipment and photographic plates.
- As it is built on the images captured with highly sensitive instruments, it boasts of having the most accurate data.
- It is also the first cosmic atlas to feature the light profiles of galaxies - a curve that describes how the brightness of the galaxy changes from its brightest point to its dimmest.
- Significance
- Cosmic atlases help astronomers spot patterns that help categorise new discoveries, such as stars that suddenly flare and then disappear (thus called ‘transients’).
- These atlases also allow astronomers to identify which objects are contenders for detailed follow-up studies.
- It helps in investigate everything from the births and evolutions of galaxies to the distribution of dark matter and propagation of gravitational waves through space.
Hence only statement 1 is correct.
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Consider the following statements regarding the Siena Galaxy Atlas: It...
Statement 1: The Siena Galaxy Atlas is a digital atlas created to understand the universe through several galaxies.
Statement 2: The data used to prepare the Siena Galaxy Atlas was taken from the Indian Astronomical Observatory of Hanle.
Explanation:
The Siena Galaxy Atlas is a digital atlas that provides a comprehensive view of the universe through various galaxies. It is a compilation of astronomical data and images collected from various observatories and telescopes around the world.
The first statement is correct because the Siena Galaxy Atlas is specifically designed to help scientists and astronomers gain a better understanding of the universe by studying galaxies. It provides detailed information about different galaxies, including their structures, compositions, and other important characteristics.
The second statement is incorrect because there is no mention of the Indian Astronomical Observatory of Hanle being the source of data for the Siena Galaxy Atlas. The atlas is a collaborative effort that utilizes data from multiple sources, including space telescopes like Hubble, ground-based observatories, and other astronomical databases.
Therefore, the correct answer is option 'A' - 1 only.
Statement 2: The data used to prepare the Siena Galaxy Atlas was taken from the Indian Astronomical Observatory of Hanle.
Explanation:
The Siena Galaxy Atlas is a digital atlas that provides a comprehensive view of the universe through various galaxies. It is a compilation of astronomical data and images collected from various observatories and telescopes around the world.
The first statement is correct because the Siena Galaxy Atlas is specifically designed to help scientists and astronomers gain a better understanding of the universe by studying galaxies. It provides detailed information about different galaxies, including their structures, compositions, and other important characteristics.
The second statement is incorrect because there is no mention of the Indian Astronomical Observatory of Hanle being the source of data for the Siena Galaxy Atlas. The atlas is a collaborative effort that utilizes data from multiple sources, including space telescopes like Hubble, ground-based observatories, and other astronomical databases.
Therefore, the correct answer is option 'A' - 1 only.
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Consider the following statements regarding the Siena Galaxy Atlas: It is a digital atlas created to understand universe through several galaxies. It was prepared by using the data from the Indian AstronomicalObservatory of Hanle.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?
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