SAC
@sacscience
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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
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.
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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: https://t.co/wz65yfZztx
#dkforsk #dkvid
dg.dk
Uddrag: ” Jørgen Christensen-Dalsgaard har været interesseret i naturvidenskab, så længe han kan huske.” »Jeg tror, jeg var syv år gammel, da jeg skrev…
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Yesterday TASOC released 12 million TESS light curves! Raw and systematics corrected using two different methods! Go do amazing science! #TDAWG0 @sacscience
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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 https://t.co/NLhLw5vmko hvor du kan læse alt om hvordan du kan blive den næste dansker i rummet! #BlivAstronaut @sacscience
blivastronaut.dk
Følg Andreas Mogensen på hans tur til ISS Masser af undervisningsforslag, opgaver og øvelser. Hvad skal Andreas Mogensen arbejde med i rummet? Og hvordan kan du være med? Seneste nyheder om rummiss...
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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):
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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
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Looking at the Insides of Stars https://t.co/rahh1mOVSj
@AarhusUni @sacscience @vsilvagui @NASA_TESS
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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 https://t.co/rahh1mOVSj
@AarhusUni @sacscience @vsilvagui @NASA_TESS
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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
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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: https://t.co/I5liOVrnXY
@sacscience @AarhusUni #mortenremar
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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
https://t.co/M9hGcDS2C7
#dkvid #dkforsk
dg.dk
Et nyt studie af stjerneskælvet fra en gammel stjerne afslører, at Mælkevejen stødte sammen med en dværggalakse for omkring 11 milliarder år siden. Bag studiet,…
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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.: https://t.co/7vVf06HnQi
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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.: https://t.co/7vVf06HnQi
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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
Astropy v4.0 has been released! See the announcement at https://t.co/hA9nvuc5Wz 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
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Paper out today! Detection and characterisation of oscillating red giants: first results from the TESS satellite. What did we find?
arxiv.org
Since the onset of the `space revolution' of high-precision high-cadence photometry, asteroseismology has been demonstrated as a powerful tool for informing Galactic archaeology investigations....
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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
(Abridged). We introduce the Aarhus Red Giants Challenge, a series of detailed comparisons between widely used stellar evolution and oscillation codes aiming at establishing the minimum level of...
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