Researchers Observe Massive CME on Distant, Sun-Like Star

Asia's Tech News Daily

Researchers Observe Massive CME on Distant, Sun-Like Star

EK Draconis illuminates an unimagined picture of how superflares may affect interplanetary space through coronal mass ejections Welcome to the New Year! While Earth celebrated 2022’s arrival with displays of fireworks, the greatest “fireworks show” in our solar system often occurs on the Sun. Its atmosphere is a venue for dynamic sunspots, solar flares, and dramatic encores of released magnetic tension casting plasma particles into the cosmos via coronal mass ejections (CME).

We’ve seen and studied CMEs from our own Sun, and often use these observations to guide our understanding of the broader universe by extrapolating these findings to other stars.

However, actually seeing these distant observations is difficult – but our team did just that.

In 2020, I worked as part of a research team led by Dr. Kosuke Namekata, National Astronomical Observatory of Japan, that successfully witnessed a massive CME taking place on a distant star. On April 5, 2020, we observed the beginning of a CME forming on EK Draconis. At roughly 50-125 million years in age and 111 light-years from Earth, EK Draconis is a young, solar-type star similar to our Sun, making it a prime candidate to make such extrapolations. It’s what our Sun would have looked like 4.5 billion years ago.

Using NASA’s Transiting Exoplanet Survey Satellite (TESS) and ground-based telescopes including Kyoto University’s SEIMEI Telescope, we captured the “first” evidence of a filament eruption – the early phase of a CME associated with a powerful superflare relative to the star’s size and age. This rare observation suggests that a strong CME, 10 times larger in mass than the largest recorded solar CME, can occur from a superflare on a young, Sun-like star.

We held two observations for 32 nights in the spring and winter of 2020. TESS conducted a photometric observation of EK Draconis, which detected how flare emission evolves and decays in optical light. With SEIMEI, we conducted H-alpha spectroscopy of EK Draconis, which detected how cool plasma (filament) moved away from the star (blue Doppler shift = initial phase of CME).

Thirty minutes into observing the filament eruption, researchers observed that the Hydrogen H-alpha hydrogen line caused an absorption and “Doppler shift”, showing the motion of matter at about 10,000 degrees approaching along the line of sight. This appeared to be a CME flying away from the star’s surface.

We were able to catch only the first step in that ejection’s life, but even so, it was a monster, moving at a top speed of roughly 1 million miles per hour!

Why is this important? Stellar superflares have been studied for years, inspiring and guiding us to find evidence of stellar CMEs and their influence on the habitability of planets. This observation reveals a previously unimagined picture of how superflares and CMEs can affect the surrounding interplanetary space – it’s the first observational evidence that ejecta from a solar-type star may shape the evolution of planetary atmospheres and the birth and maintenance of life.

An event like this could tell us more about our Sun, its behavior, and whether superflares and CMEs like those of EK Draconis might be possible. Fortunately, the frequency of severe space weather events on our current Sun is expected to be low (once every few hundred – thousand years), but a massive CME from our own Sun could spell devastating effects on Earth should it happen.

Although our Sun is much older, it suggests that large CMEs of its “early” years may have shaped young-Earth into the world we live in today. Studying CMEs could illuminate the historic evolution of planets in our solar system while serving as a warning beacon for the future.

Research Report: “Probable detection of an eruptive filament from a superflare on a solar-type star”

Internet Explorer Channel Network
Asia's Tech News Daily
News Related

OTHER NEWS

Plato exoplanet mission gets green light for next phase

Plato, ESA’s next-generation planet hunting mission, has been given the green light to continue with its development after the critical milestone review concluded successfully on 11 January 2022. The review ... Read more »

Earth's interior is cooling faster than expected

The evolution of our Earth is the story of its cooling: 4.5 billion years ago, extreme temperatures prevailed on the surface of the young Earth, and it was covered by ... Read more »

New DAF software factory aims to digitally transform AFRL

The chief software officer for the Air Force recently designated Hangar 18 as a Department of the Air Force software factory. Hangar 18 joins 16 other DAF software factories-including the ... Read more »

Arase uncovers Geospace coupling between plasma waves and charged particles

In a new study published in Physical Review Letters, researchers from Japan show that high-frequency plasma waves in the Geospace can generate low-frequency plasma waves through wave-particle interactions by heating ... Read more »

Chile court freezes multi-million dollar lithium deal

A Chilean appeals court on Friday suspended a million-dollar state lithium tender issued two days earlier that had generated controversy for coming just two months before the end of conservative ... Read more »

Understanding the "cold spot" in the cosmic microwave background

After the Big Bang, the universe, glowing brightly, was opaque and so hot that atoms could not form. Eventually cooling down to about minus 454 degrees Fahrenheit (-270 degrees Celsius), ... Read more »

Evidence for a second supermoon beyond our solar system

Astronomers have reported a second, super-sized moon orbiting a Jupiter-sized planet beyond our solar system. If confirmed, the sighting could mean that exomoons are as common in the universe as ... Read more »

Virgin Orbit mission success brings UK satellite launch one step closer

Satellite launch from Spaceport Cornwall is a step closer following Virgin Orbit’s successful ‘Above the Clouds’ mission in the US. The UK Space Agency welcomes the news that Virgin Orbit ... Read more »

OMEGA joins ClearSpace to clean up space

ClearSpace SA is working to rid space of dangerous debris comprising left-over rockets and defunct satellites. Now, Swiss watchmaker OMEGA, manufacturer of the first watch worn on the Moon, is ... Read more »

Iran tests solid-fuel satellite carrier rocket

Iran’s Revolutionary Guards tested last week a solid-fuel satellite carrier rocket, state media has reported quoting the force’s aerospace commander as saying. Reports carried footage released by the elite force ... Read more »

SpaceX launches 44 SuperDove satellites for Planet Labs

Planet Labs reports the successful launch of its 4x Flock, consisting of 44 SuperDove satellites, into orbit on a SpaceX Falcon 9 rocket. The company has established contact with all ... Read more »

Ironing out the interiors of exoplanets

The discovery of more than 4,500 extra-solar planets has created a need for modelling their interior structure and dynamics. As it turns out, iron plays a key role. Lawrence Livermore ... Read more »

New insights into seasons on a planet outside our solar system

Imagine being in a place where the winds are so strong that they move at the speed of sound. That’s just one aspect of the atmosphere on XO-3b, one of ... Read more »

Citizen Scientists Spot Jupiter-like Planet in NASA TESS Data

Tom Jacobs of Bellevue, Washington, loves treasure hunts. Since 2010, the former U.S. naval officer has participated in online volunteer projects that allow anyone who is interested – “citizen scientists” ... Read more »

Team of astronomers finds widest separation of brown dwarf pair to date

A team of astronomers, led by Arizona State University undergraduate student Emma Softich, has discovered a rare pair of brown dwarfs that has the widest separation of any brown dwarf ... Read more »

Pandora mission to study stars and exoplanets continues toward flight

The Pandora mission, co-led by a national laboratory and a NASA flight center, has passed a crucial step on its path to study stars and planets outside our solar system, ... Read more »

Unusual team finds gigantic planet hidden in plain sight

Riverside CA (SPX) Jan 14, 2022 A UC Riverside astronomer and a group of eagle-eyed citizen scientists have discovered a giant gas planet hidden from view by typical stargazing tools. ... Read more »

Photon pairs are more sensitive to rotations than single photons

In the field of quantum metrology, scientists are developing novel measurement schemes that benefit from quantum features and are more precise and sensitive than classical conventional methods. The team of ... Read more »

Newly-Found Planets On The Edge Of Destruction

Three newly-discovered planets have been orbiting dangerously close to stars nearing the end of their lives. Out of the thousands of extrasolar planets found so far, these three gas giant ... Read more »

Kleos' Patrol Mission satellites to launch in April

Kleos Space S.A, a space-powered Radio Frequency Reconnaissance data-as-a- service (DaaS) company, announces the Kleos Patrol Mission (KSF2) satellites, planned to launch in January 2022, have been remanifested to launch ... Read more »

Virgin Orbit launches a rocket carrying 7 satellites

Virgin Orbit kicked off an ambitious launch schedule for 2022 on Thursday by sending seven small satellites into space aboard a rocket launched from a jet high above the Pacific ... Read more »

Black hole at center of Milky Way unpredictable and chaotic

An international team of researchers, led by postgraduate student Alexis Andres, has found that the black hole at the centre of our galaxy, Sagittarius A*, not only flares irregularly from ... Read more »

SES Government Solutions Launches On-Demand X-band Service Platform

SES Government Solutions, a wholly-owned subsidiary of SES, announced the launch of tactiXs, a mission-specific managed service platform in partnership with Network Innovations and GovSat, a public-private joint venture between ... Read more »

Pixxel Partners with Rio Tinto to investigate benefits of hyperspectral satellite technology

Earth imaging company Pixxel has announced an early adoption partnership with Rio Tinto. Pixxel’s imaging satellites, capable of 5 meter hyperspectral imaging, will help Rio Tinto assess the benefits the ... Read more »

Are astronomers seeing a signal from giant black holes?

An international team of astronomers has discovered what could be the early sign of a background signal arising from supermassive black holes, observed through low-frequency gravitational waves. These scientists are ... Read more »

New theory finds upcoming satellite mission will be able to detect more than expected

The upcoming satellite experiment LiteBIRD is expected to probe the physics of the very early Universe if the primordial inflation happened at high energies. But now, a new paper in ... Read more »

How the Webb telescope could ultimately help protect Earth

The James Webb Space Telescope, the most complex and expensive space laboratory ever created, is less than two weeks away from its ultimate destination a million miles from Earth. Once ... Read more »

Watch live: Virgin Orbit plans to launch a rocket carrying 7 satellites

Virgin Orbit kicked off an ambitious launch schedule for 2022 on Thursday by sending seven small satellites into space aboard a rocket launched from a jet high above the Pacific ... Read more »

Oxygen ions in Jupiter's innermost radiation belts

Planets like Earth, Jupiter, and Saturn with global magnetic fields of their own are surrounded by so-called radiation belts: Trapped in the magnetic field, fast moving charged particles such as ... Read more »

It all comes down to the first electron

Every living thing requires energy. This is also true of microorganisms. This energy is frequently generated in the cells by respiration, that is by the combustion of organic compounds, in ... Read more »

Cosmic explosions offer new clue to how stars become Black Holes

Scientists have witnessed for the first time exactly what happens to the most massive stars at the end of their lives. Most very large stars explode in a fiery supernova ... Read more »

A cosmic romance written in the stars

An international team of astronomers has taken a step forward in understanding the evolution of galaxies, and in so doing, told a story written in the heavens. It has long ... Read more »

Copper-based chemicals may be contributing to ozone depletion

Copper released into the environment from fungicides, brake pads, antifouling paints on boats and other sources may be contributing significantly to stratospheric ozone depletion, according to a new study from ... Read more »

ALMA Catches "Intruder" Redhanded in Rarely Detected Stellar Flyby Event

Scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) and the Karl G. Jansky Very Large Array (VLA) made a rare detection of a likely stellar flyby event in the Z ... Read more »

New spheres of knowledge on the origin of life

The shape of a cell affects its physical and chemical properties. Different cell types have developed different shapes to enable effective functioning. But what shape were the very first cells, ... Read more »

Too much heavy metal stops stars producing

Stars are giant factories that produce most of the elements in the Universe – including the elements in us, and in the Earth’s metal deposits. But what stars produce changes ... Read more »

Deciphering conditions around the Sun five million years ago

Using high-resolution data obtained from the Space Telescope Imaging Spectrograph aboard the Hubble Space Telescope, Wesleyan University Professor of Astronomy Seth Redfield can show the conditions the Sun encountered traveling ... Read more »

North Pole solar eclipse excited auroras on the other side of the world

A solar eclipse over the Arctic created changes in auroras in both of Earth’s hemispheres due to connections through the planet’s magnetic field, according to a new study. The new ... Read more »

Increased space missions risk extraterrestrial contamination

The days of the U.S.-Soviet Space Race are over, and the domain of space exploration is expanding daily to include more countries than ever before. With the advent of private ... Read more »

Planet to launch 44 SuperDove satellites on SpaceX's Falcon 9

Planet Labs PBC reports announced that the launch of their Flock 4x, consisting of 44 SuperDove satellites, will take place on Thursday, January 13th on SpaceX’s Falcon 9 Transporter-3 SSO. ... Read more »
On free-english-test.com you will find lots of free English exam practice materials to help you improve your English skills: grammar, listening, reading, writing, ielts, toeic