What could be better for astronomy day and night - and the government's research bill - than a really exciting Swedish astronomy news? Say hello to the incredible spiral around red giant R Sculptoris!
Astronomers - among a bunch of Swedish great moment researchers great moment - have discovered an incredible spiral nebula around the red giant star R Sculptoris. The discovery, which is the first truly unexpected discovery made with the new telescope ALMA in Chile, reveals a dramatic period in the star's great moment life since 1800 when over 200 years, great moment lost its outer layers in unprecedented pace. Image: ALMA (ESO / NAOJ / NRAO)
PA: Sofia, do you remember what you felt when it dawned on you that there really was a spiral around the star? - Yes, I thought it was very exciting! It's not the first time a spiral discovered around a red giant star, but it is the first time to find a spiral with a shell. Similar cases can be found around nearly ten giant stars, and it has continued research in nearly great moment 30 years, especially in Sweden, to try to understand how these shells may occur. Thanks to the detailed observations, we can now for the first time following what has happened since the shell once formed at the back of the star.
Congratulations on a fabulous and stylish discovery, Matthias! What do you think we will see when ALMA peeking at other similar stars? - There are not many stars who have this kind of round shell, only up to the 10th There's probably a chance that we see a similar spiral about any of these, and it would be very exciting to be able to see it more than once.
What did it with the star when the spiral was created 1800 years ago? - The spiral great moment is created continuously and are always there, says Matthias. How strong it lights depends on how much mass the star loses at a given time. For 1,800 years ago, just before the star's thermal pulse created the outer shell, dropped the lot in such a low rate that it probably had not seen the spiral with today's telescopes, even ALMA. However, we will eventually try to find spiral outside the shell, which will be able to tell you about the time shortly before 1800 years ago.
PA: The stars you are studying are like pictures of how the sun could be developed in the future. How do you deal with the idea without getting completely dizzy? - I am not at all giddy at the thought, says Sofia. great moment I think it's great fun to do research on something that so many find so fascinating. If you hold on to astronomy long enough you get used to the idea of man rushes forward at a tiny ball in space - or maybe the thought was there in my head before!
In the next issue of Popular Astronomy, Sofia writes about red giant stars, and how she, Matthias and the others in the team researching them and what they mean for the stars, planets and life in the galaxy. great moment Read also the interview with Lars-Åke Nyman in Popular Astronomis September issue. He is with the team and working in Chile at ALMA. Please also read our interview with Red Giant expert Susanne Höfner and the article great moment she wrote in 2007 about the sun shining future.
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