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1 vote
1 answer
92 views

Where do these materials on the Sun come from, if not nothingness?

In this video, I see that for hours, it seems that the flow keeps going from the 11h direction to the Sun's surface - while there looks like nothing is coming to the top of the loop to provide a ...
longtry's user avatar
  • 403
6 votes
1 answer
477 views

Where do Coronal Mass Ejections go?

Due to magnetic fluctuations in the Sun's corona, the Sun produces Coronal Mass ejections (CMEs). Where does the matter from these CMEs go if they don't hit any celestial object? Are they visible from ...
Tapan Gupta's user avatar
6 votes
1 answer
59 views

What online tools are available to investigate and classify solar eruptions?

I was just casually browsing when I came across a link about at recent solar flare. So I went to investigate at SpaceWeather. There it was stated: Looking further down the page it seem to say that ...
not2qubit's user avatar
  • 235
5 votes
1 answer
90 views

Strength of the relationship between very large solar flares, coronal mass ejections, and solar proton events?

In the years 774-775 and 993-994, there were large peaks in Earth's atmospheric radiocarbon (14C) concentration. While the cause was initially disputed, Mekhaldi et al.'s 2015 study of annually ...
Gabriel's user avatar
  • 151
5 votes
2 answers
192 views

Directionality of solar flares

I have read a number of articles about Coronal Mass Ejections (CME) and solar flares and I’m trying to establish how directional the radiation from them is. I am aware that radiation from these solar ...
Slarty's user avatar
  • 359
2 votes
1 answer
119 views

Physical properties of the stellar corona?

I am after the basic physical properties of the corona of a star, here some questions for which I would like to have an answer, even only for a subset of them: I know some things about the corona of ...
B--rian's user avatar
  • 5,636
4 votes
2 answers
178 views

Solar flares/CME dangers to life?

I know a repeat of the 1859 Carrington Event (coronal mass ejection) would pose a severe risk to power grids and telecommunication networks but wouldn't pose an immediate threat to life. If a large ...
Bob516's user avatar
  • 1,489
2 votes
1 answer
252 views

Detecting anomalies from the sun from home

I was wondering if there are any ways for some amateur to detect let's say solar flares or CMEs from home. What kind of hardware would you need in order to have chance of seeing/measuring those? I ...
CCG's user avatar
  • 21
2 votes
1 answer
219 views

Does Earth's magnetic field become stronger when a solar flare hits?

This curiosity arises as follows: when ejecta from a strong solar flare hits Earth, will the Earth somehow counter its impact with a stronger magnetic field. Or, earth's magnetic field as limited ...
Ubi.B's user avatar
  • 221
3 votes
3 answers
99 views

Does coronal mass ejection include radiation at optical wavelengths?

It is known that during Solar/Stellar Flare, plasma from the corona of the star is released into the space, and travels comparatively slowly. In an hypothetical situation, does the coronal mass also ...
Rudra Pratap Sinha's user avatar
7 votes
1 answer
291 views

Difference in creation of solar flares and CME?

What is the difference in the creation process of solar flares and CME (coronal mass ejections)? How do they relate to sunspots and coronal holes? Here there are some good explanations about the ...
Helen's user avatar
  • 399
5 votes
1 answer
157 views

Conditions on Hot Jupiters

Hot Jupiters are close to their parent star - after all, that's why they're so hot. Their atmospheres are thought to be slowly blown away by the parent star, and they will eventually become chthonian ...
HDE 226868's user avatar
  • 37.3k
8 votes
1 answer
65 views

Are we still in the Solar Maximus stage? Will this winter 2013/14 be a good aurora-viewing season?

I remember reading in 2011 that 2013/2014 would be the peak of the current solar maximus, but I want to confirm whether that is still ongoing. Will the upcoming winter season be a good time to see ...
Kathryn Hill's user avatar
21 votes
2 answers
4k views

What are the main differences between solar flares and coronal mass ejections?

Specifically, what causes them, what sort of damage can they cause, and what are the differences in their composition?
David Freitag's user avatar