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Scientists recreate solar eruption in 3D
New York, March 10 (IANS) Scientists have combined data from three NASA satellites to develop a 3D model that simulates how shocks following coronal mass ejections (CMEs) propagate from the Sun.
CMEs, often called solar storms or space storms, are a significant release of plasma and magnetic field from the solar corona.
The CMEs set off interplanetary shocks when they erupt from the Sun at extreme speeds, propelling a wave of high-energy particles.
These particles can spark space weather events around Earth, endangering spacecraft and astronauts.
The scientists Ryun-Young Kwon, solar physicist at George Mason University in Virginia, and Angelos Vourlidas, astrophysicist from the Johns Hopkins University, fit the CME data to their models — one called the “croissant” model for the shape of nascent shocks, and the other the “ellipsoid” model for the shape of expanding shocks — to uncover the 3D structure and trajectory of each CME and shock.
They used data from the NASA/ESA Solar and Heliospheric Observatory (Soho) and NASA’s twin Solar Terrestrial Relations Observatory (Stereo) satellites.
Each spacecraft’s observations alone were not sufficient to model the shocks.
But with three sets of eyes on the eruption, each of them spaced nearly evenly around the Sun, the scientists could use their models to recreate a 3D view.
Their work confirmed long-held theoretical predictions of a strong shock near the CME nose and a weaker shock at the sides.
In time, shocks travel away from the Sun. With the 3D information, the scientists were able to reconstruct their journey through space, the study showed.
For the first time, the density of the plasma around the shock, in addition to the speed and strength of the energised particles was deduced by scientists.
All of these factors are key to assessing the danger CMEs present to astronauts and spacecraft, said the team in a paper published in the Journal of Space Weather and Space Climate.
Understanding a shock’s structure — particularly how it develops and accelerates — is key to predicting how it might disrupt near-Earth space.
–IANS
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Dr. Abhishek Verma Dedicates a Shelter in Memory of His Mother, Veena Verma, at KGMU; Inaugurated by Daughter Nicolle Verma
World-renowned business tycoon Dr. Abhishek Verma has supported Foodman Vishal Singh’s Hunger-Free World mission. In memory of his mother, Late Veena Verma, who was a 3 term Rajya Sabha MP.
Dr. Verma dedicated a state-of-the-art free permanent shelter for the attendants of patients at KGMU Medical University, Lucknow, under the aegis of Vijay Shree Foundation. His daughter, Nicolle Verma, inaugurated the shelter.
During the event, Foodman Vishal Singh honored Nicolle Verma by presenting her with a memento. Mrs. Nidhi Sharma and Avantika Yadav, associated with the organization, welcomed her with garlands. Following this, Nicolle Verma distributed essential items to the attendants and also handed out fruits. She became emotional remembering her grandmother on her birth anniversary.
On this occasion, she also inaugurated the “Veena Verma Sevalaya” in memory of her grandmother, Veena Verma, to serve the attendants. She expressed, “I feel proud that my family is engaged in nation-building as well as social service. Today, in collaboration with Vijay Shree Foundation founder Foodman Vishal Singh Ji, I feel immensely proud to dedicate this shelter for the poor, helpless, and needy attendants of patients battling serious illnesses like cancer. I am honored to be associated with the Hunger-Free World Mission for humanity.”
Inspired by the continuous humanitarian service provided by Vijay Shree Foundation over the past 17 years, Nicolle Verma donated 10 lakh rupees to support the cause. The purpose of this donation is to ensure that services continue for the needy attendants of patients suffering from severe illnesses in hospitals, as facilitated by Foodman Vishal Singh.
It is noteworthy that Dr. Abhishek Verma’s family has a legacy of public and philanthropic service. They are helping millions to carry forward the values and service work of their parents. On the occasion of his mother’s birth anniversary, Dr. Abhishek Verma dedicated this state-of-the-art permanent shelter at Lucknow Medical College to serve the attendants of patients through the Vijay Shree Foundation.
Supporting Foodman Vishal Singh’s Hunger-Free World mission, Dr. Abhishek Verma assured that he would continually support keeping this flame of humanity alive. He also promised to assist in providing medicines to the helpless patients.
Continuing her grandmother’s legacy of service, Nicolle Verma personally served food to the needy patients and attendants. She said, “It is our good fortune to have received the joy of doing this noble work today through Foodman Vishal Singh. I have taken another step forward in carrying my family’s values and cooperation by joining hands with the Vijay Shree Foundation. My father taught me to serve and help the needy, and I feel happy when I bring a smile to someone’s face.”
On the birth anniversary of the late Veena Verma, the event organizer, Vijay Shree Foundation founder Foodman Vishal Singh, said, “We feel proud and happy that Dr. Abhishek Verma, a globally renowned business tycoon, has extended his support to uplift our country from the hunger index. Today, on his mother’s birth anniversary, he inaugurated a state-of-the-art permanent shelter at Lucknow Medical College, which will always be helpful for the needy attendants of patients. It is a pleasure for me and the organization to receive the affection of Mr. Verma.”
The event was attended by General Manager Verma Family Office Hemant Garg, Sonu Rajput, and the organization’s volunteers, including Sandeep Singh, Parmeshwar Ji, Prashant Rao Gautam, Balram Singh, Ramesh Chaudhary, Suman, Jeetu, Anil, Suraj, Vinay, Manish Bhadauria, Manas Mehrotra, Vivek, Apurv, Happy, and others.