Stellar Astrophysics Centre:

Research on the Sun, stars

and extra-solar planets


47 Tucanae imaged by ESO's VISTA camera

2017.02.13 | Staff, Public/media

47 Tucanae precisely dated by SAC team and collaborators

Karsten Brogaard from SAC and collaborators have a paper accepted by MNRAS, to be published on ArXive 14 February 2017, titled "The age of 47Tuc from self-consistent isochrone fits to colour-magnitude diagrams and the eclipsing member V69"

2016.12.23 | Public/media

Have you noticed the Christmas Star in South-West after sunset?

- well, maybe it is Venus on second thought, but SAC's Mads has produced a nice video quoting some of the theories concerning the "real" Chrismas Star

Hyades open cluster in Taurus. Credit: Jerry Lodriguss

2016.12.20 | Students, Staff, Public/media

F-stars in Hyades show solar-like oscillations

The Hyades cluster was observed during the K2 mission, and one of the results; the first ever detections of solar-like oscillations in main-sequence stars in an open cluster, is published in Monthly Notices of the Royal Astronomical Society of 11 December 2016. SAC's Mikkel Lund is head author.

Mads explains astronomical principles to the students

2016.11.25 | Events

Students attempt to observe with SONG from Aarhus

The winners of the first SONG competition for Danish upper secondary level students, the Astronomy C group from Varde Gymnasium og HF visited the Ole Rømer-Observatory in Aarhus on Tuesdag 22 November 2016 hoping to do their remote observations with the Tenerife-based telescope.

2016.11.01 | Public/media, Research news, Staff, Students

Internal rotation of γ Doradus stars

The internal rotation of stars is a fundamental quantity in stellar physics, similar to their mass or metallicity. In a new paper presently on arXiv SAC's Rhita-Maria Ouazzani et al. present a method of determining this parameter for γ Doradus stars

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