If a Solar Flare Produces an X-Ray Outburst and Also

question 244

Multiple Choice

If a solar flare produces an X-ray outburst and also triggers a coronal mass ejection (CME) , what will be the arrival times of these components, referenced to the time of occurrence on the Sun?

• A) The X-rays arrive within a few seconds of the flare, while the CME material arrives about an hour after the flare.
• B) Disturbances on Earth from each of these components occur about 2 days after the flare.
• C) The disturbances from these outbursts occur almost simultaneously on Earth, about 8 minutes after the flare, because the CME material travels almost at the speed of light.
• D) The X-rays arrive about 8 minutes after the flare, while the CME material arrives after about 2 days.

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