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In the context of Magnetars, consider the following statements:
Magnetars are a type of neutron stars with magnetic field stronger than that of the Earth.
Alfven Waves are created due to the instabilities caused inside a magnetar.
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 'C'. Can you explain this answer?
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Most Upvoted Answer
In the context of Magnetars, consider the following statements: Mag...
- Scientists have found the first clues to understand violent short duration flares from a compact star of rare category called magnetar located thirteen million light years away. A magnetar is an exotic type of neutron star, its defining feature that it has an ultra-powerful magnetic field. The field is about 1,000 times stronger than a normal neutron star and about a trillion times stronger than the Earth‘s. Hence statement 1 is correct.
- These compact stars with the most intense magnetic field known, of which only thirty have been spotted so far in our galaxy, suffer violent eruptions that are still little known due to their unexpected nature and their short duration. It is believed that eruptions in magnetars may be due to instabilities in their magnetosphere or to a kind of "earthquakes" (‖starquakes‖) produced in their crust, a rigid and elastic layer about a kilometer thick. ―Regardless of the trigger, in the magnetosphere of the star a type of waves will be created. These waves which are well known in the Sun, are called Alfvén waves and while bouncing back and forth between the points at the base of its lines of magnetic field, they interact with each other dissipating energy. Hence statement 2 is correct.
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In the context of Magnetars, consider the following statements: Mag...
Correct Answer: c) Both 1 and 2
Explanation:
Magnetars:
- Magnetars are a type of neutron stars with an extremely strong magnetic field, estimated to be billions of times stronger than that of the Earth.
- Due to this intense magnetic field, magnetars exhibit unique and extreme behaviors, such as emitting bursts of X-rays and gamma rays.
Alfven Waves:
- Alfven Waves are a type of magnetohydrodynamic wave that can propagate through a plasma medium, such as the material within a magnetar.
- These waves are created due to the instabilities caused inside a magnetar, often triggered by the interactions between the intense magnetic field and the surrounding plasma.
- The presence of Alfven Waves in magnetars can provide valuable insights into the internal structure and dynamics of these extreme objects.
Conclusion:
Both statements are correct as magnetars are indeed neutron stars with exceptionally strong magnetic fields, and Alfven Waves are a result of the instabilities within magnetars caused by their powerful magnetic fields.
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In the context of Magnetars, consider the following statements: Magnetars are a type of neutron stars with magnetic field stronger than that of the Earth. Alfven Waves are created due to the instabilities caused inside a magnetar. 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 'C'. Can you explain this answer?
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