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Scientists find Super-Earths, Neptune-sized planets near young stars

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Astronomers, Super-Earths, Neptune-sized planets, Young stars, Planets, Earth, Scientists, Science and Technology news

Bejing: “Super-Earths” and Neptune-sized planets could be forming around young stars in much greater numbers than scientists thought, a new research by an international team of astronomers suggests.

The findings, based on a survey of young stars in a star-forming region in the constellation Taurus, showed many of them to be surrounded by structures that can best be explained as traces created by invisible, young planets in the making.

 

Astronomers, Super-Earths, Neptune-sized planets, Young stars, Planets, Earth, Scientists, Science and Technology news

 

“This is fascinating because it is the first time that exoplanet statistics, which suggest that super-Earths and Neptunes are the most common type of planets, coincide with observations of protoplanetary disks,” said lead author Feng Long, a doctoral student at Peking University in Beijing, China.

The research, published in the Astrophysical Journal, helps scientists better understand how our own solar system came to be.

Using the Atacama Large Millimeter Array, or ALMA, comprising 45 radio antennas in Chile’s Atacama Desert, the team performed a survey of young stars in the Taurus star-forming region, a vast cloud of gas and dust located a modest 450 light-years from Earth.

 

Astronomers find Super-Earths, Neptune-sized planets near young stars:

 

When the researchers imaged 32 stars surrounded by protoplanetary disks, they found that 12 of them — 40 per cent — have rings and gaps, structures that according to the team’s measurements and calculations can be best explained by the presence of nascent planets.

 

Astronomers, Super-Earths, Neptune-sized planets, Young stars, Planets, Earth, Scientists, Science and Technology news

 

The Neptune-sized gas planets or so-called super-Earths — terrestrial planets of up to 20 Earth masses — were found to be the most common. Only two of the observed disks could potentially harbour behemoths rivalling Jupiter, the largest planet in the solar system.

“Since most of the current exoplanet surveys can’t penetrate the thick dust of protoplanetary disks, all exoplanets, with one exception, have been detected in more evolved systems where a disk is no longer present,” explained Paola Pinilla, from the University of Arizona in the US.

“Our results are an exciting step in understanding this key phase of planet formation and by making these adjustments, we are hoping to better understand the origins of the rings and gaps,” Long said.

 

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Lok Sabha poll battle enters Yadav land in UP’s third phase

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Mulayam Singh Yadav, Akhilesh Yadav, Mayawati, Shivpal Yadav, Azam Khan, Jaya Prada, SP-BSP alliance, Lok Sabha election, Lok Sabha poll, Third phase of LS polls, Uttar Pradesh, Politics news

Lucknow: As we all know that the Lok Sabha election enters its third phase in Uttar Pradesh, the battle is now taking place in Yadav land with the prestige and stature of the Mulayam Singh Yadav clan on test.

The phase will also decide the course that the battle in the Yadav family will take in future.

The Samajwadi Party had contested only three out of the 16 seats that went to polls in the first two phases in the state, but in the third phase, is contesting nine out of the 10 seats that will see voting on April 23.

The Samajwadi Party-Bahujan Samaj Party-Rashtriya Lok Dal alliance looks rather formidable in this phase, given the caste equations and the Bharatiya Janata Party may face an uphill task on many of these seats.

 

Mulayam Singh Yadav, Akhilesh Yadav, Mayawati, Shivpal Yadav, Azam Khan, Jaya Prada, SP-BSP alliance, Lok Sabha election, Lok Sabha poll, Third phase of LS polls, Uttar Pradesh, Politics news

 

The seats in this phase include Samajwadi Party strongholds like Badaun, Sambhal, Mainpuri, Ferozabad, and Rampur as well as Aonla, Bareilly, Pilibhit, Etah and Moradabad.

One of the safest seats for the SP is Mainpuri where party patriarch Mulayam Singh Yadav is the candidate. It was in Mainpuri two days ago that Mulayam Singh shared the stage with BSP President Mayawati, burying the hostilities of the past two and a half decades.

There are no guesses for the result in Mainpuri where Mulayam Singh remains the tallest and most popular leader. He was elected from Mainpuri in 2014 as well as Azamgarh but had chose to retain the latter.

In Badaun, Samajwadi Party’s Dharmendra Yadav is locked in a straight fight with Salim Iqbal Shervani of the Congress. The four lakh Muslim and nine lakh OBC votes in this constituency could tilt the scales in favour of the SP.

 

LS election enters its 3rd phase in UP, battle now in Yadav land:

 

BJP’s Sanghmitra Maurya is, meanwhile, embroiled in a controversy after her video asking her supporters to cast fake votes went viral.

In Ferozabad, the war is between uncle Shivpal Yadav and nephew Akshay Yadav and there is certainly no camaraderie in the air. This is a real battle between Yadav leaders and Shivpal Yadav enjoys an advantage because he is familiar with the organization at the ground level.

The Samajwadi Party is also hopeful of winning the Sambhal seat where the party has again fielded Shafiqur Rehman Barq who had lost the seat by just 5,000-odd votes in 2014.

Rampur, meanwhile, is witnessing its worst-ever election campaign with BJP’s Jaya Prada and SP’s Mohammad Azam Khan calling each other unprintable names.

 

Mulayam Singh Yadav, Akhilesh Yadav, Mayawati, Shivpal Yadav, Azam Khan, Jaya Prada, SP-BSP alliance, Lok Sabha election, Lok Sabha poll, Third phase of LS polls, Uttar Pradesh, Politics news

 

Jaya Prada, with tears flowing down her cheeks, is trying to earn the sympathy votes from the people while Azam Khan is playing the victim card to make it to the winning post.

In Pilibhit, BJP MP Varun Gandhi is pitted against SP’s Hemraj Varma and in Moradabad, BJP’s Sarvesh Singh is being challenged by young poet Imran Pratagarhi. The BJP appears strong in both the constituencies.

In Bareilly, veteran BJP MP Santosh Gangwar is seeking his eighth term and his challenger is Praveen Aron of Congress.

In Etah, Rajvir Singh, son of Rajasthan Governor and former Uttar Pradesh Chief Minister Kalyan Singh, is seeking a second term. He is pitted against SP’s Devendra Yadav.

 

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