Physicists can map Sun’s coronal magnetic field for the first time using a Coronagraph
4 years, 3 months ago

Physicists can map Sun’s coronal magnetic field for the first time using a Coronagraph

Firstpost  

Making global maps of the coronal magnetic field strength will allow researchers to “eventually get better predictions of space weather events”. A team of international solar physicists has now managed to map the global magnetic field of the solar corona for the first time. They used a specialised instrument called a ‘coronagraph’ or the ‘near-infrared imaging spectroscopy’ to block out the sun’s bright disk to measure the “speed and intensity of waves rippling through coronal plasma”, reported Science News. According to Jenna Samra of the Smithsonian Astrophysical Observatory in Cambridge, making global maps of the coronal magnetic field strength is going to allow researchers to “eventually get better predictions of space weather events”.

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History of this topic

This is the clearest and closest picture of the Sun ever taken
1 month ago

This is the clearest and closest picture of the Sun ever taken

India Today  

The European Space Agency's Solar Orbiter mission has captured the highest-resolution full views of the Sun's visible surface to date, offering scientists an unprecedented look at our star's complex and dynamic nature. The PHI instrument has provided remarkable images of the Sun's photosphere, revealing not only its visible surface but also mapping its magnetic field and surface movements. Daniel Muller, …

First Observations of Solar Coronal Eruptions from the Aditya-L1 Mission
1 month, 2 weeks ago

First Observations of Solar Coronal Eruptions from the Aditya-L1 Mission

New Indian Express  

The article describes the successful observation of a CME (Coronal Mass Ejection) on the Sun using the VELC (Visions for Extreme Solar and Cosmic Events) mission. The observation was made during the event on July 16, and it provided valuable data on the coronal conditions during the onset of the CME. This study will help scientists to better understand the …

Sun's magnetic field may form close to the surface: new study
7 months ago

Sun's magnetic field may form close to the surface: new study

The Hindu  

New research indicates the sun’s magnetic field originates much closer to the surface than previously thought, a finding that could help predict periods of extreme solar storms like the ones that slammed Earth earlier this month. The sun’s intense magnetic energy is the source of solar flares and eruptions of plasma known as coronal mass ejections. Solar flares and coronal …

Sun’s Magnetic Field May Form Close to the Surface. This Finding Could Improve Solar Storm Forecasts
7 months ago

Sun’s Magnetic Field May Form Close to the Surface. This Finding Could Improve Solar Storm Forecasts

Deccan Chronicle  

CAPE CANAVERAL, Fla. — New research indicates the sun’s magnetic field originates much closer to the surface than previously thought, a finding that could help predict periods of extreme solar storms like the ones that slammed Earth earlier this month. The sun’s intense magnetic energy is the source of solar flares and eruptions of plasma known as coronal mass ejections. …

Sun’s magnetic field may form close to the surface. This finding could improve solar storm forecasts
7 months ago

Sun’s magnetic field may form close to the surface. This finding could improve solar storm forecasts

Associated Press  

CAPE CANAVERAL, Fla. — New research indicates the sun’s magnetic field originates much closer to the surface than previously thought, a finding that could help predict periods of extreme solar storms like the ones that slammed Earth earlier this month. The sun’s intense magnetic energy is the source of solar flares and eruptions of plasma known as coronal mass ejections. …

SCIENCE NOTEBOOK | A new way to measure magnetic fields in the solar chromosphere
1 year, 9 months ago

SCIENCE NOTEBOOK | A new way to measure magnetic fields in the solar chromosphere

The Hindu  

Published : Mar 23, 2023 10:45 IST - 2 MINS READ The sun’s atmosphere has three layers: the photosphere, the chromosphere, and the corona. Strong magnetic fields gather hot plasma in the chromosphere into a network of super-sized granulation cells that can stretch to over 30,000 km across, about 2.5 earth diameters, and 1,500 km deep. One way to measure …

Scientists measure magnetic field of eruption from Sun's atmosphere
3 years, 3 months ago

Scientists measure magnetic field of eruption from Sun's atmosphere

India TV News  

Scientists have measured the magnetic field of an eruption from the Sun's atmosphere, which offered a rare peek into the interior of the star, the Department of Science and Technology said on Thursday. The Sun is an extremely active object, spewing out vast quantities of gas in many violent events and the corona is a region of very high temperatures, …

Physicists Measure the Global Magnetic Field of Solar Corona For the First Time
4 years, 4 months ago

Physicists Measure the Global Magnetic Field of Solar Corona For the First Time

News 18  

It is very well known that the sun is the brightest star that is visible to living beings on Earth. The magnetic field of the sun occupies all layers of the solar atmosphere. However, due to lack of knowledge about magnetic fields in the outermost solar atmosphere, the corona has made it difficult to understand the solar magnetism and many …

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