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Fundamentals of effective cloud management for the new NASA Astrophysics Data System
Sergi Blanco-Cuaresma, Alberto Accomazzi, Michael J. Kurtz +11
The new NASA Astrophysics Data System (ADS) is designed with a serviceoriented architecture (SOA) that consists of multiple customized Apache Solr search engine instances plus a co…
Gaia Data Release 2. Short-timescale variability processing and analysis
M. Roelens, L. Eyer, N. Mowlavi +13
The Gaia DR2 sample of short-timescale variable candidates results from the investigation of the first 22 months of Gaia photometry for a subsample of sources at the Gaia faint end…
Gaia Data Release 2: Properties and validation of the radial velocities
D. Katz, P. Sartoretti, M. Cropper +51
For Gaia DR2 (GDR2), 280 million spectra, collected by the RVS instrument on-board Gaia, were processed and median radial velocities were derived for 9.8 million sources brighter t…
Gaia Data Release 2: Photometric content and validation
D. W. Evans, M. Riello, F. De Angeli +9
Aims. We describe the photometric content of the second data release of the Gaia project (Gaia DR2) and its validation along with the quality of the data. Methods. The validation w…
New ADS Functionality for the Curator
Alberto Accomazzi, Michael J. Kurtz, Edwin A. Henneken +9
In this paper we provide an update concerning the operations of the NASA Astrophysics Data System (ADS), its services and user interface, and the content currently indexed in its d…
Short timescale variables in the Gaia era: detection and characterization by structure function analysis
Maroussia Roelens, Laurent Eyer, Nami Mowlavi +7
We investigate the capabilities of the ESA Gaia mission for detecting and character- izing short timescale variability, from tens of seconds to a dozen hours. We assess the efficie…
Gaia Data Release 1: The variability processing & analysis and its application to the south ecliptic pole region
L. Eyer, N. Mowlavi, D. W. Evans +70
The ESA Gaia mission provides a unique time-domain survey for more than one billion sources brighter than G=20.7 mag. Gaia offers the unprecedented opportunity to study variability…
What can the programming language Rust do for astrophysics?
Sergi Blanco-Cuaresma, Emeline Bolmont
The astrophysics community uses different tools for computational tasks such as complex systems simulations, radiative transfer calculations or big data. Programming languages like…
Short timescale variables in stellar clusters: From Gaia to ground-based telescopes
Maroussia Roelens, Sergi Blanco-Cuaresma, Laurent Eyer +6
Combined studies of variable stars and stellar clusters open great horizons, and they allow us to improve our understanding of stellar cluster formation and stellar evolution. In t…
Determining stellar atmospheric parameters and chemical abundances of FGK stars with iSpec
S. Blanco-Cuaresma, C. Soubiran, U. Heiter +1
Context. An increasing number of high-resolution stellar spectra is available today thanks to many past and ongoing extensive spectroscopic surveys. Consequently, the scientific co…