Scientists find evidence of baby planets around a young star a million years old
Q. Scientists have found evidence of baby planets along a young star close to million years old. What is this star called?- Published on 26 May 16a. HL Tauri
b. HL Stauri
c. HL Kauri
d. HL Flauri
ANSWER: HL Tauri
This discovery suggests planets may form in shorter timescales than previously thought. In Novemeber 2014, Atacama Large Millimetre/sub millimetre Array in Chile released an image of young star HL Tauri and its dusk disk
- The image which is the sharpest for any kind of object shows numerous gaps in the dusk disk around the star
- As the disks are sites of planet formation, dark gaps carved by infant planets in the disk sweep away dust along the orbits
- HL Tauri is very young estimated to be only about a million years and classical studies suggest it takes tens of millions of years for planets to form from small dust
- Some researchers also hold that the mechanisms can be used to form gaps: changes in dust size through coalescene or destruction of dust due to gas molecules freezing.
