Currently, I am collaborating with the research library at University of Southern Denmark. They have a special collection of old books, some of them from Tycho Brahe. I am working on making them public, so everyone can enjoy this blast from the past!
Today is the birthday of the Danish astronomer Tycho Brahe. He lived from 1546 to 1601, where he died in Prague. He discovered SN1572, which we today know is a supernova, but back then he thought to have discovered a […]
A few months ago I was contacted by the Danish YouTube’r Ronnie Skov. He runs a vlog, where more than 18.000 active subscribers follow him as he uploads 3-4 new videos per week.
Science outreach is a two-sided coin. A saint and a devil. On one side it explains science to the public and hence increases the general level of knowledge. On the other side a stigma exists in research environments, namely that researchers who do outreach also do less rigorous scientific work.
The recent attention on the neutron star merger GW170817 has made many people, who would not otherwise come across astronomy online, curious about space and specifically gravitational waves sources like neutron stars. I love this type of star so what is more fitting than to spread the love. I previously presented you three crazy features in neutron stars, one of them being the accreting nature in binary systems – and these are exactly the systems we will look into here.
These days neutron stars are big in the media, partially because they are such extreme objects. But what exactly is a neutron star – and how do you put something so extreme into perspective? Let’s try.
Neutron stars are the origin of the current media wave around GW170817. I would argue that neutron stars are more interesting than black holes simply because they are the densest objects in the Universe, that still obeys out known laws of physics. Whereas thinking too much about black holes and your head explodes.
Monday earlier this week the internet exploded with the news from ESO that two neutron stars merged in the galaxy NGC4993 located 130 million light years away. This was measured on August 17 this year and the discovery was therefore named GW170817, which is short for ‘Gravitational Wave on August 17, 2017’ as measured by LIGO in USA and Virgo in Europe.
Yesterday ESO announced the discovery of gravitational waves and electromagnetic radiation, that originated from a neutron star merger in a galaxy far, far away. Media from all over the world covered the story as it was revealed that some 3,000 scientists had worked for six weeks to decipher the signal, that was received in multiple telescopes and observatories on August 17 this year.
