Results 91 to 100 of about 210,924 (322)
, 2010 The scientific community needs to be prepared to analyse the data from Gaia, one of the most ambitious ESA space missions, to be launched in 2012. The purpose of this paper is to provide data and tools in order to predict in advance how Gaia photometry ...
A. Mora +57 more
core +1 more source
Gaia transient detection efficiency: hunting for nuclear transients [PDF]
, 2015 We present a study of the detectability of transient events associated with galaxies for the Gaia European Space Agency astrometric mission. We simulated the on-board detections, and on-ground processing for a mock galaxy catalogue to establish the ...
Blagorodnova, Nadejda +7 more
core +2 more sources
Journal of Theoretical Biology, 2017 We modify the Tangled Nature Model of Christensen et. al. so that the agents affect the carrying capacity. This leads to a model of species-environment co-evolution where the system tends to have a larger carrying capacity with life than without. We discuss the model as an example of an entropic hierarchy and some implications for Gaia theory.
Rudy Arthur, Arwen Nicholson
openaire +4 more sources
FEBS Letters, Volume 599, Issue 7, Page 971-988, April 2025.We present the first solution structure of the Ca2+‐depleted LETM1 F‐EF‐hand through a D676A/N678A Ca2+ binding‐deficient mutant, revealing a closed hydrophobic cleft caused by a unique F1‐helix pivot. The apo LETM1 F‐EF‐hand exhibits regiospecific hot and cold unfolding, sensitivity to physiological pH changes and potential for promiscuous heterotypic
Qi‐Tong Lin +2 more
wiley +1 more source
Open Astronomy, 2011 A medium-band 12-color photometric system, based on the decontaminated Gaia BP/RP spectra, has been proposed in our Paper II. Here we analyze a possibility to apply some versions of this system for the determination of temperatures and gravities of stars
Straižys V., Lazauskaitė R.
doaj +1 more source
Consolidation of the Gaia catalogue with Chinese Space Station Telescope astrometry
Frontiers in Astronomy and Space Sciences, 2022 The issue of preservation and improvement of the Gaia catalogue throughout the next few decades is addressed. The goal of this study is to evaluate the feasibility of astrometric parameter update, for objects already in the catalogue, by inclusion of new
M. Gai +6 more
doaj +1 more source
Expectations on the mass determination using astrometric microlensing by Gaia
, 2020 Context. Astrometric gravitational microlensing can be used to determine the mass of a single star (the lens) with an accuracy of a few percent. To do so, precise measurements of the angular separations between lens and background star with an accuracy ...
Bastian, U., Klüter, J., Wambsganss, J.
core +1 more source
On the use of Gaia magnitudes and new tables of bolometric corrections [PDF]
, 2018 The availability of reliable bolometric corrections and reddening estimates, rather than the quality of parallaxes will be one of the main limiting factors in determining the luminosities of a large fraction of Gaia stars.
Casagrande, Luca, VandenBerg, Don A.
core +2 more sources
Gaia Data Release 1: Astrometry - one billion positions, two million proper motions and parallaxes [PDF]
, 2016 Gaia Data Release 1 (Gaia DR1) contains astrometric results for more than 1 billion stars brighter than magnitude 20.7 based on observations collected by the Gaia satellite during the first 14 months of its operational phase.
L. Lindegren +83 more
semanticscholar +1 more source
Gaia benchmark stars and their twins in the Gaia‐ESO Survey [PDF]
Astronomische Nachrichten, 2016 AbstractThe Gaia benchmark stars are stars with very precise stellar parameters that cover a wide range in the HR diagram at various metallicities. They are meant to be good representative of typical FGK stars in the Milky Way. Currently, they are used by several spectroscopic surveys to validate and calibrate the methods that analyse the data.
openaire +3 more sources