Stellar Astrophysics Centre (SAC) is a Danish Center of Excellence at Aarhus University, Denmark, doing research on the sun, stars and extra-solar planets.
Aarhus, Denmark
Joined September 2014
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Today, Friday Professor Jørgen Christensen-Dalsgaard at SAC will be inducted at member of the National Academy of Science. Follow the ceremony in Washington, DC at the NAS website.
SAC retweeted
Allerede som barn eksperimenterede prof. Jørgen Christensen-Dalsgaard fra @sacscience med kemiforsøg i barndomshjemmets kælder. Du kan læse om dette og meget mere i det 9. kapitel i ”Fortællinger fra Grundforskningens Grænseland" her: dg.dk/fortaellinger-fra-grun… #dkforsk #dkvid
SAC retweeted
Yesterday TASOC released 12 million TESS light curves! Raw and systematics corrected using two different methods! Go do amazing science! #TDAWG0 @sacscience doi.org/10.5281/zenodo.45490… – at Arhus, Denmark
SAC retweeted
Går du med en astronaut i maven? ESA søger nye astronauter - og det kunne være dig! Jeg har været med til at lave vores nye danske side blivastronaut.dk hvor du kan læse alt om hvordan du kan blive den næste dansker i rummet! #BlivAstronaut @sacscience – at Arhus, Denmark
This week our very own @karoff takes the lead on @AUforsker. Stay tuned if you're in for tweets about interdisciplinary research, sports and who knows, maybe even some DISCO moves to follow that beer! In Danish. @GrundforskFond
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In a new podcast, Associate Professor @karoff from @AarhusUni talks about the possibilities of data from satellites to be part of the solution to climate changes.
You can listen to the podcast here (in Danish): rumsnak.fireside.fm/14
Today we celebrate 8 years of SAC @AarhusUni by #stayingathome. Here's to 2 more years of fantastic science and wonderful colleagues both here in #aarhus and around the globe. Thank you all for being part of this journey! @GrundforskFond @jcd21566502
SAC retweeted
Looking at the Insides of Stars aasnova.org/2020/02/28/looki… @AarhusUni @sacscience @vsilvagui @NASA_TESS
ALT Illustration of a space telescope with extended solar panels in the foreground, and a dim star with three planetary bodies around it in the background.
SAC retweeted
Our paper presenting the first asteroseismic analysis of red giants observed by the TESS satellite has been highlighted by AAS Nova. Now off to unleash its potential for Galactic archaeology!
Looking at the Insides of Stars aasnova.org/2020/02/28/looki… @AarhusUni @sacscience @vsilvagui @NASA_TESS
ALT Illustration of a space telescope with extended solar panels in the foreground, and a dim star with three planetary bodies around it in the background.
Jakob Mosumgaard is about to start his PhD defense and tell us: are things better in 3D? The quest for better stellar models. Go Jakob!! @AarhusUni @vsilvagui
SAC retweeted
Opdagelsen af 7 milliarder år gamle støvkorn ændrer vores forståelse af solsystemets dannelse. Morten Remar har talt med astronom Christoffer @karoff fra Geoscience Center ved Århus Universitet: soundcloud.com/science_stori…
@sacscience @AarhusUni #mortenremar
ALT Photo:Alex Antropov on Pixabay
SAC retweeted
Et studie af stjerneskælv fra en gammel stjerne afslører, at Mælkevejen stødte sammen med en dværggalakse for ca 11 milliarder år siden. Forskere fra grundforskningscentret @sacscience er med på holdet bag studiet. @vsilvagui @AarhusUni
dg.dk/nyt-studie-fra-sac-ska…
#dkvid #dkforsk
SAC retweeted
Nu Indi is a very old star, kinematically heated by a galactic merger with our Milky Way, most likely the Gaia-Enceladus merger. Constraining the age of nu Indi with @NASA_TESS puts the merger at more than 11 Gyr ago (95% confidence). Chaplin et al.: nature.com/articles/s41550-0…
SAC retweeted
Our paper in Nature Astronomy is out! Putting constraints on the time of the Gaia Enceladus merger, led by our colleague Bill Chaplin. @sacscience @AarhusUni
Nu Indi is a very old star, kinematically heated by a galactic merger with our Milky Way, most likely the Gaia-Enceladus merger. Constraining the age of nu Indi with @NASA_TESS puts the merger at more than 11 Gyr ago (95% confidence). Chaplin et al.: nature.com/articles/s41550-0…
SAC retweeted
I don't often contribute to Open Source projects (not as much as I should), but when I do it's for the really awesome projects! Astropy 4.0 is out! #padmyownback #minorcontribution @sacscience – at Arhus, Denmark
Astropy v4.0 has been released! See the announcement at astropy.org/announcements/re… to find out more about what's new, and how to update or install with pip and conda. 4.0 is an LTS release, which means it will be supported for the next 2 years! #python #science #astronomy
SAC retweeted
Paper out today! Detection and characterisation of oscillating red giants: first results from the TESS satellite. What did we find? arxiv.org/abs/1912.07604
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Have you been wondering what is the uncertainty introduced by your choice of stellar evolution models when determining the properties of your favourite star? The first paper of the series is out in the arxiv today: The Aarhus red giants challenge arxiv.org/abs/1912.04909