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T. Sagristà Sellés

Researcher at Heidelberg University

Publications -  4
Citations -  5414

T. Sagristà Sellés is an academic researcher from Heidelberg University. The author has contributed to research in topics: Astrometry & RR Lyrae variable. The author has an hindex of 4, co-authored 4 publications receiving 4234 citations. Previous affiliations of T. Sagristà Sellés include Space Telescope Science Institute.

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The Gaia mission

T. Prusti, +624 more
TL;DR: Gaia as discussed by the authors is a cornerstone mission in the science programme of the European Space Agency (ESA). The spacecraft construction was approved in 2006, following a study in which the original interferometric concept was changed to a direct-imaging approach.
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Gaia Data Release 2 Variable stars in the colour-absolute magnitude diagram

L. Eyer, +454 more
TL;DR: In this article, the locations of variable star classes, variable object fractions, and typical variability amplitudes throughout the CaMD and show how variabilityrelated changes in colour and brightness induce "motions".
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Gaia Data Release 1. Testing parallaxes with local Cepheids and RR Lyrae stars

G. Clementini, +637 more
TL;DR: In this article, the first parallax measurements of the primary standard candles of the cosmological distance ladder, that involve astrometry collected by Gaia during the initial 14 months of science operation, are published in Gaia Data Release 1 (DR1) as part of the Tycho-Gaia Astrometric Solution (TGAS).
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Gaia Data Release 2 (Corrigendum)

Amina Helmi, +480 more
TL;DR: An error occurred during the production process of the original published version as mentioned in this paper and the following names were omitted from the author list: R. Haigron, D. Hatzidimitriou, M. Hauser, E. Haywood, U. Heiter, J. Heu, T. Hilger.