How supernovae create calcium, which consist of our bones and teeth

Last spring, in the galaxy M100 is 55 million light years away exploded supernova SN 2019ehk. It is noteworthy that he found this Amateur astronomer Joel shepherd, and the Hubble space telescope saw nothing. This is no accident – SN 2019ehk refers to the unique objects that are responsible for creating more than half of all calcium in the Universe, including the one that is in our teeth.

After a year of studying SN 2019ehk and its heritage scientists have called this the generation of calcium most powerful in history. Stars usually produce very little of this element, slow burning helium in the course of its existence. But in a supernova, everything is different, and in the case of SN 2019ehk the explosion led to the collision of matter stars with an external gas ring, which gave rise to huge temperature and pressure. It launched a nuclear reaction, which led to the synthesis of limiting amounts of calcium.

The case was so rare and amazing that in less than 10 hours after the detection of a supernova behind it is the next best telescopes in the world. And just in time, because a scientist managed to fix the x-rays of unprecedented brightness that has been missing for five days. Because of such speeds of the processes such cases is not always possible to notice that have generated controversy regarding the origin of “star” of calcium.

It is noteworthy that over 25 years of Hubble observations have repeatedly looked in the galaxy M100, but found nothing there. Neither did he see the supernova, from which it was concluded that SN 2019ehk – dull and easy star or white dwarf. And it is the object of this type, and not a massive star, responsible for the origin of the greater part of the calcium in the Universe.

Leave a Reply

Your email address will not be published. Required fields are marked *

Releated

Physicists have learned to turn plastic bottles in supercapacitors

Scientists from the University of California, riverside have developed a technology to produce components for supercapacitors from regular waste. We are talking about polyethylene terephthalate or PET, which is made most of plastic bottles. This material is from an economic point of view is significantly superior to high-tech raw materials, like graphene or carbon nanotubes. […]

Looks like a screwdriver of the XXI century

Recently Techcult wrote about the drill of the XXI century with a touchscreen and lasers. But the screwdriver is traditionally considered to be more simple, reliable and very straightforward tool. What similar high-tech screwdriver advanced Italian production? And it is similar to the Kinetic device Driver. Kinetic Driver designed by the Italian designer Giacomo Di […]

Our Solar system is most similar to space croissant

The sun emits powerful electromagnetic winds that envelop the planet in our solar system like a giant bubble. This magnetic bubble is called the heliosphere and protects the planet from dangerous space radiation. Scientists have long believed that the heliosphere is in the form of a comet – with a distinct nose and long flowing […]

Some homemade masks turned out to be more dangerous than no

Despite the fact that the industry has recovered from the shock of the first days of the pandemic COVID-19 and now produces enough facial masks of different types, most people in the world due to various reasons use homemade versions. Everyone understands that they are less effective than professional medical model, but the question is: […]