What happens when the Sun is asleep? Indian researchers reveal unique details

what happens when the sun is asleep? indian researchers reveal unique details

Sun

The Sun has been extremely active this year as it reaches the peak of its solar cycle and just in the last week, it has hurtled three solar flares, 18 coronal mass ejections, and 1 geomagnetic storm. But it has not been like this forever. There have been times when the sunspots on the surface completely vanish and the star in our solar system appears to be sleeping.

Researchers at the Center of Excellence in Space Sciences India at the Indian Institute of Science Education and Research (IISER), Kolkata have revealed what happens when the activity on the sun is completely missing and how the star regains its energy to burst with life and hurtle dangerous flares throughout the solar system.

The findings published in the journal Monthly Notices of the Royal Astronomical Society reveal that even when the sun is deep asleep there are churnings in the polar and interior regions of the star. Researchers found that the Sun’s internal dynamo mechanism which sustains the solar cycle is still hard at work during these quiet periods.

WHEN IS THE SUN ASLEEP?

There have been episodes in the past when the activity on the Sun has been at an all-time low with no sunspots. This period is known as the grand minimum, which is characterised by significant reductions in solar radiation and particulate output.

Astronomers have found that the waxing and waning of the number of sunspots observed on the star’s surface came to a grinding halt during 1645-1715. This has not been a standalone event, such minima have been recorded throughout the Sun’s life, which is 4.6 billion years old.

what happens when the sun is asleep? indian researchers reveal unique details
Computer simulations of the Sun’s magnetic cycle show that the Sun’s magnetic dynamo remains operational inside the Sun during periods of extreme inactivity known as solar grand minima. (Graphic: IISER)

While we know what happens on the surface of the Sun, during this period, there is little information about the activity in the polar and interior regions. It is widely believed the large-scale magnetic cycle of the Sun switches off during these phases, the new study points to the fact that it does not mean the complete shutdown of the activity.

WHAT HAVE RESEARCHERS FOUND?

The study conducted by Ph.D. student at IISER Chitradeep Saha along with Sanghita Chandra and Professor Dibyendu Nandy reveals that magnetic fields in the Sun’s interior remain rather busy during these apparently dormant phases. The magnetic activity persists in the form of weak cycles in the convection zone that is incapable of producing sunspots.

Also Read | No damage to moon rocket from Hurricane Ian, Artemis-1 to launch in Nov

The team also demonstrated the ceaseless overturning motion of the plasma in the solar convection zone that acts as a clock, driving weak magnetic cycles within the Sun during what were believed to be phases of extreme inactivity.

“Our 10,000-year-long computer simulations shed light on the dynamics that go on in the solar interior (convection zone) and at the polar regions even when there are critically low number of sunspot eruptions on the solar surface for a prolonged period known as grand solar minimum. The ceaseless plasma motion and turbulent fluctuations in the convection zone eventually helps the star regain its regular magnetic activity again,” Chitradeep Saha, lead author of the paper told indiatoday.in.

The study is set to aid future missions planned to study the Sun, with a focus on the interior and the polar regions that have remained enigmatic to astronomers. At the moment, two major missions Nasa’s Parker Solar Probe and Europe’s Solar Orbiter, are inching closer to the star to study the developments and to better understand space weather.

India is also planning to launch the Aditya L-1 mission that will study the Sun in finer detail.

Also Read | Nobel Prize 2022 to be announced from today

Watch Live TV in English

Watch Live TV in Hindi

News Related

OTHER NEWS

Court acquits former Delhi minister Rajendra Pal Gautam for flouting Covid protocol during protest

Court acquits former Delhi minister Rajendra Pal Gautam for flouting Covid protocol during protest A Delhi court recently acquitted former Delhi minister Rajendra Pal Gautam, MLA Durgesh Pathak and 36 ... Read more »

Mumbai: BMC floats tender for Gokhale bridge dismantling

Gokhale bridge Mumbai: The tender for the dismantling of Gokhale bridge is opened on Friday. According to general manager of WR, the dismantling work of Gokhale bridge (railway portions one arms) will be completed by March ... Read more »

'None of China's business': US on joint military drills with India near LAC

‘None of China’s business’: US on joint military drills with India near LAC New Delhi: The US on Friday rejected China’s opposition to an India-US joint military exercise near the ... Read more »

Mumbai: Here's how two young boys managed to help South Korean YouTuber

Mumbai: Here’s how two young boys managed to help South Korean YouTuber In this age of digital technology, it is interesting to see how a social media live-streaming bridged the ... Read more »

Digital rupee a game changer, should ensure better monetary transmission: SBI Chairman Dinesh Khara

Digital rupee a game changer, should ensure better monetary transmission: SBI Chairman Dinesh Khara SBI Chairman Dinesh Khara on Friday said the Reserve Bank’s first pilot project for retail digital ... Read more »

‘No Time to Waste’: BJP Huddle Next Week, Upcoming Assembly, 2024 Polls, G20 on Agenda

‘No Time to Waste’: BJP Huddle Next Week, Upcoming Assembly, 2024 Polls, G20 on Agenda While the elections of Gujarat and Himachal Pradesh are yet to finish, the Bharatiya Janata ... Read more »

Routine Order Renewed, No Fresh Bans in Mumbai: Cops Clarify After Reports of Restrictions

Routine Order Renewed, No Fresh Bans in Mumbai: Cops Clarify After Reports of Restrictions Mumbai Police clarified that the restrictions and bans in the city that hit the news on Friday ... Read more »

Maharashtra: 6 medical students of Nagpur college booked for ragging

Maharashtra: 6 medical students of Nagpur college booked for ragging An offence has been registered against six MBBS interns of a government medical college in Nagpur who were suspended over ... Read more »

Kerala: Duo convicted of rape, murder of Latvian tourist in 2018

Kerala: Duo convicted of rape, murder of Latvian tourist in 2018 The Thiruvananthapuram Additional Sessions Court, on Friday, found two accused in a sensational case of rape and murder of ... Read more »

EU puts $60 Per barrel price cap on Russian oil

EU puts $60 Per barrel price cap on Russian oil The European Union has reached a deal for a USD 60 per barrel price cap on Russian seaborne oil, with ... Read more »

AIIMS cyberattack probe points to ‘foreign state actor’, Govt looks at mandatory audits

AIIMS cyberattack probe points to ‘foreign state actor’, Govt looks at mandatory audits THE PRELIMINARY investigation into the cyberattack on some of the servers at the All India Institute of ... Read more »

BJP names Jaiveer Shergill as national spokesperson, Amarinder Singh, Sunil Jakhar made executive members

BJP names Jaiveer Shergill as national spokesperson, Amarinder Singh, Sunil Jakhar made executive members The Bharatiya Janata Party (BJP) on Friday appointed Jaiveer Shergill as the party’s national spokesperson. He ... Read more »

V-P enters Collegium debate, recalls NJAC repeal: Never too late

V-P enters Collegium debate, recalls NJAC repeal: Never too late In an oblique reference to the Supreme Court’s 2015 judgement striking down the National Judicial Appointments Commission Act, 2014, which ... Read more »

Top BJP Leaders to Meet All 68 Himachal Candidates to Review Voting, Postal Ballot Trends Ahead of Results

Top BJP Leaders to Meet All 68 Himachal Candidates to Review Voting, Postal Ballot Trends Ahead of Results The BJP has called a meeting of all 68 of its candidates ... Read more »

Delhi MCD Elections 2022: All govt schools in national capital to remain shut TODAY

Delhi MCD Elections 2022: All govt schools in national capital to remain shut TODAY New Delhi: In view of the MCD (Municipal Corporation of Delhi) elections, the Directorate of Education ... Read more »

Freddy movie review: Don't skip this Kartik Aaryan's spine-chilling drama!

Freddy movie review: Don’t skip this Kartik Aaryan’s spine-chilling drama! Director: Shashanka Ghosh Cast: Kartik Aaryan as Dr Freddy Ginwala, Alaya F as Kainaaz, Karan Pandit as Raymond Nariman, Sajjad Delfrooz as Rustom ... Read more »

Suarez and Uruguay quell Ghana again, but South Korea have other plans

Suarez and Uruguay quell Ghana again, but South Korea have other plans DOHA: Twelve years on, Ghana would, yet again, win a penalty. This time, it won’t be Luis Suarez’s ... Read more »

Bengal governmant bans hookah bars in Kolkata

Bengal governmant bans hookah bars in Kolkata The West Bengal government imposed a ban on hookah bars in Kolkata, citing an adverse impact on public health. Announcing the decision on Friday, ... Read more »

Exclusive | 'Dawa Ka Aadhaar Card': Modi Govt's Prescription to Promote Barcodes on Medicines

Exclusive | ‘Dawa Ka Aadhaar Card’: Modi Govt’s Prescription to Promote Barcodes on Medicines “Dawa ka Aadhar Card” – this is how the Narendra Modi government plans to publicise its ... Read more »

Election 2022 LIVE Updates: Modi Wraps Up Campaign in Gujarat Ahead of Phase 2, Congress Claims Strong Anti-incumbency Wave in State

Election 2022 LIVE Updates: Modi Wraps Up Campaign in Gujarat Ahead of Phase 2, Congress Claims Strong Anti-incumbency Wave in State Election 2022 LIVE Updates: Prime Minister Narendra Modi wrapped up ... Read more »

NPCI extends UPI market cap deadline by 2 yrs

NPCI extends UPI market cap deadline by 2 yrs Shashank Didmishe In a relief to UPI payments market leaders, PhonePe and Google Pay, the National Payments Corporation of India (NPCI) ... Read more »

Delhi AIIMS ransomware attack: China involvement suspected, data of VVIPs, including politicians, at risk

Delhi AIIMS ransomware attack: China involvement suspected, data of VVIPs, including politicians, at risk The personal data of millions of patients in top premier medical institute All India Institute of Medical ... Read more »

Exclusive | Discuss Election Date, Or We Will Dissolve Assemblies: Imran's Bouncer to Pak Govt

Exclusive | Discuss Election Date, Or We Will Dissolve Assemblies: Imran’s Bouncer to Pak Govt Former Pakistan Prime Minister Imran Khan on Friday asked the Shehbaz Sharif-led government to come ... Read more »

Ricky Ponting returns to commentary after suffering 'sharp' chest pain: Scary moment for myself

Ricky Ponting returns to commentary after suffering ‘sharp’ chest pain: Scary moment for myself Former Australia captain Ricky Ponting on Saturday returned to commentate on the Perth Test between Australia ... Read more »

Mumbai: One held for extortion from construction firm

Representative Image Mumbai: The Crime Branch Unit 12 has arrested one person for trying to extort Rs5 lakh from the manager of a reputed construction company. The suspect has been ... Read more »

5% Lower Turnout in Gujarat Polls Ph-1: Weary Voters, Weekday Polling May Be Reasons; What's The Upshot?

5% Lower Turnout in Gujarat Polls Ph-1: Weary Voters, Weekday Polling May Be Reasons; What’s The Upshot? The first phase of Gujarat elections for 89 seats saw 5 per cent ... Read more »

Arvind Kejriwal's 'London-Paris' pitch to traders ahead of Delhi civic polls

Arvind Kejriwal’s ‘London-Paris’ pitch to traders ahead of Delhi civic polls Markets in Delhi will be built like the ones in Paris and London if the Aam Aadmi Party comes ... Read more »

Army vehicle catches fire near Udaipur, no casualty

Army vehicle catches fire near Udaipur, no casualty One of the vehicles of the Army convoy on the way to Udaipur military station caught fire on Friday after a technical ... Read more »

Asian surge in World Cup: South Korea stun Portugal, follow Japan to round of 16

Asian surge in World Cup: South Korea stun Portugal, follow Japan to round of 16 A NIGHT after Japan upended Spain and topped their group, neighbours South Korea pulled off ... Read more »

'Chori karke achha laga lekin...': Chhattisgarh thief tells cops, here's how they reacted - WATCH

‘Chori karke achha laga lekin…’: Chhattisgarh thief tells cops, here’s how they reacted – WATCH New Delhi: The video of a thief being interrogated at a police station in Chhattisgarh’s ... Read more »

Attack in Pakistan's embassy in Kabul, one injured

Attack in Pakistan’s embassy in Kabul, one injured Pakistan’s embassy in Kabul came under attack on Friday with gunfire wounding a Pakistani security guard, officials said, in what Islamabad called ... Read more »

CBI summons Telangana CM KCR's daughter for questioning in Delhi liquor policy case

CBI summons Telangana CM KCR’s daughter for questioning in Delhi liquor policy case The Central Bureau of Investigation (CBI) on Friday issued a notice to Telangana Member of Legislative Council ... Read more »

Aaftab used Chinese knife to dismember Shraddha's body, chopped her hands first: Sources

Aaftab used Chinese knife to dismember Shraddha’s body, chopped her hands first: Sources As the gruesome details of the Shraddha Walkar murder case continue to unravel, as per the sources, ... Read more »

Prateek Sadhu: Tea break

Tea talk Q I end up drinking copious amounts of tea at home. How can I cut down on it? —Saina, via Instagram The best way to cut down on ... Read more »

FIFA World Cup 2022, Round of 16: Teams, full fixture, venue, dates - All you need to know

After a fortnight of riveting action in the group stages, FIFA World Cup 2022 is down to the final 16 team. Brazil, Portugal and defending champions France were the only ... Read more »

'Azam Khan paying for his 'deeds', if he had sought apology...': Yogi Adityanath ahead of Rampur bypoll

Rampur: Uttar Pradesh Chief Minister Yogi Adityanath on Friday took a dig at senior Samajwadi Party leader Azam Khan, who faces several cases and has spent time in jail, for ... Read more »

Two injured as burglars open fire at Hyderabad jewellery store, decamp with gold and cash

Two injured as burglars open fire at Hyderabad jewellery store, decamp with gold and cash A hunt is on for two unidentified men who opened three rounds of fire during ... Read more »

C’garh's Rasputin moment: Influential deputy secretary arrested

C’garh’s Rasputin moment: Influential deputy secretary arrested Chhattisgarh Chief Minister Bhupesh Baghel’s unusually powerful Deputy Secretary Saumya Chaurasiya was arrested on Friday by the Enforcement Directorate (ED) after months of ... Read more »

Assembly Election 2022: 'AAP set to lose deposit in most seats in Himachal, Gujarat', says Jai Ram Thakur

Assembly Election 2022: ‘AAP set to lose deposit in most seats in Himachal, Gujarat’, says Jai Ram Thakur New Delhi, Dec 2 (IANS) On the last day of campaigning for ... Read more »

First betch of railway officers under new integrated service to start from 2023

First betch of railway officers under new integrated service to start from 2023 NEW DELHI: The overhaul of the railway officers recruitment will be complete next year with the Union ... Read more »
Breaking thailand news, thai news, thailand news Verified News Story Network