Astronomers find first carbon-rich asteroid in Kuiper Belt
Washington, May 10: Astronomers have discovered an unusual carbon-rich asteroid in the Kuiper Belt -- the first of its kind to be confirmed in the cold outer reaches of the solar system.
This object, designated 2004 EW95, likely formed in the asteroid belt between Mars and Jupiter and has been flung billions of kilometres from its origin to its current home in the Kuiper Belt, the study said.
The researchers found that the asteroid's reflectance spectrum -- the specific pattern of wavelengths of light reflected from an object -- was different to that of similar small Kuiper Belt Objects (KBOs), which typically have uninteresting, featureless spectra that reveal little information about their composition.
"The reflectance spectrum of 2004 EW95 was clearly distinct from the other observed outer Solar System objects," explained lead author Tom Seccull of Queen's University Belfast in Britain
"It looked enough of a weirdo for us to take a closer look," Seccull added.
Theoretical models of the early days of our solar system predict that after the gas giants formed they rampaged through the solar system, ejecting small rocky bodies from the inner solar system to far-flung orbits at great distances from the Sun.
In particular, these models suggest that the Kuiper Belt -- a cold region beyond the orbit of Neptune -- should contain a small fraction of rocky bodies from the inner solar system, such as carbon-rich asteroids, referred to as carbonaceous asteroids.
The new study, published in The Astrophysical Journal, presented evidence for the first reliably-observed carbonaceous asteroid in the Kuiper Belt, providing strong support for these theoretical models of our solar system's troubled youth.
After measurements from multiple instruments at European Southern Observatory's Very Large Telescope (VLT), the team of astronomers was able to measure the composition of the object.
The results suggest that it originally formed in the inner solar system and must have since migrated outwards.
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Former Minister Manohar Tahsildar passes away in Haveri
Haveri: Former Karnataka minister Manohar Tahsildar (80) passed away late Wednesday night at a private hospital in Bengaluru. He had been battling a prolonged illness and was undergoing treatment at Shankar Hospital in Chamarajpet.
Tahsildar is survived by four sons, two daughters, and a large family. A member of the Balija community, he held a BE in Mechanical Engineering. First elected to the Karnataka Legislative Assembly from the Hanagal constituency in 1978, he went on to win again in 1989, 1999, and 2013.
During S.M. Krishna’s tenure as Chief Minister, Tahsildar served as the Deputy Speaker of the Assembly. In 2015, he held the Excise portfolio in the Congress government. However, discontent over not receiving a ticket in the last Assembly elections led him to leave Congress and join the JD(S). Later, during the Lok Sabha elections, he switched to the BJP.
The mortal remains of Manohar Tahsildar will be kept for public viewing at NCJC College in Hanagal town today from 12 noon. Following this, the final rites will be conducted on his family farm in Akkiholi village.
