Dark matter Hurricane in the direction of Earth
Dark matter Hurricane in the direction of Earth
"I was born in a hurricane of dark matter."
The song of the Rolling Stones "Jumpin 'Jack Flash"It was recorded 50 years ago this year, but if Keith Richards was born today, or at least during the current week, his opening line on a crossfire hurricane (which referred to a German air strike in World War II) could have been updated to the dark matter hurricane hitting the solar system and planet Earth as we speak. A what?
"The forecast of cosmic weather demands strong winds of dark matter in our region of the Galaxy. The prediction is based on a new study of a nearby collection of stars moving in the same direction. "
In the study "Dark matter hurricane: S1 flow measurement with dark matter detectors"Published last week in the magazine. Physical revision D Y summarized in Physical, researchers from the University of Zaragoza in Spain reveal, a little late, that the Earth is currently in the middle of a "star current" that can contain a large amount of dark matter. Let's break that and see if we should look up or to the sky and kiss goodbye.
A stellar current is the remains of a dwarf galaxy that was destroyed by a larger one. In this case, a flow called S1 by the researchers who discovered it last year using the Gaia satellite of the European Space Agency are the remnants of the dwarf galaxy consumed billions of years ago by the Milky Way. It seems to contain remains of around 30,000 stars and is traveling through the galaxy at a speed of about 500 kilometers (310 miles) per second. How do you know this? Because it is blowing beyond and around the sun and our planet at this time.
That in itself does not put us in danger, according to the study. However, what happened on your trip here could. While passing through the rest of the galaxy, S1 has been capturing dark matter and is now bombarding us at such a high speed that co-author Ciaran O'Hare called it a "dark matter hurricane." (A new song You'd have to give O'Hara credit to avoid the controversy Keith had with the Stones bass player, Bill Wyman, about his unproven contribution to the first guitar riff of "Jumpin 'Jack Flash".
Inferred distribution of dark matter (blue) through the gravitational lens effect
As we are theoretically surrounded by dark matter, the hurricane itself is not hurting us. In fact, it is helping astronomers and physicists to potentially identify what dark matter really is. One theory is that it is a form of weakly interacting massive particles (WIMP). O'Hara's team believes that current detectors will not be able to detect them, but future WIMP detectors may do so. They are more enthusiastic about the identification of axion dark matter (theoretical particles 500 million times lighter than electrons) that "should exhibit a large protrusion with an additional narrow beak if Hurricane S1 really hits our shores".
Therefore, we are not going to be hit by any of the large pieces in S1 and, in theory, we are not running any risk from the theoretical dark matter load that is throwing at us. The S1 dark matter hurricane is one of those things that will only give wet dreams to astronomers, physicists ... and possibly future composers and composers. heavy metal bands.
"Here I am ... rock like a hurricane of dark matter."
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