Results 31 to 40 of about 77,893 (247)
STRONTIUM ABUNDANCES IN COOL DWARF STARS OF GALACTIC THIN AND THICK DISKS
Odessa Astronomical Publications, 2016 We revise the strontium abundances in FGK stars with metallicities ranging from −1.0 < [Fe/H] < +0.3. The observed stars belong to the substructures of the Galaxy thick and thin discs.
T. I. Gorbaneva, T. V. Mishenina
doaj +1 more source
Survival of 6li and 7li in Metal-Poor Stars [PDF]
, 1999 The relationship between the respective depletion factors for 6Li and 7Li in metal-poor stars is studied for two simple models of depletion by nuclear burning by mixing with deeper layers, below the bottom of the convective zone.
Cayrel, R., Lebtreton, Y., Morel, P.
core +2 more sources
Assessing habitat suitability for black grouse broods at the bioregional scale
Wildlife Biology, EarlyView.The black grouse Lyrurus tetrix, a galliform species emblematic of the European Alps, is currently threatened by habitat change, particularly given the closure of heathland linked to the rising tree line at higher altitudes. The presence of heathlands in good ecological condition is, however, imperative for the species' reproduction.
Alexandre T. M. Defossez +6 more
wiley +1 more source
The Gaia satellite: a tool for Emission Line Stars and Hot Stars [PDF]
, 2008 The Gaia satellite will be launched at the end of 2011. It will observe at least 1 billion stars, and among them several million emission line stars and hot stars. Gaia will provide parallaxes for each star and spectra for stars till V magnitude equal to
Alecian, Evelyne +21 more
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L'Education physique en mouvement, 2022 Les camps scolaires sont des moments inoubliables d’une année scolaire où vie en communauté et activités sportives en font des outils pédagogiques incontournables. Le Centre sportif national de la jeunesse de Tenero (CST) offre une infrastructure complète avec pléthore de choix lorsqu’il s’agit de trouver un sport parmi la cinquantaine d’activités ...
openaire +1 more source
Seeing like a citizen: Experimental evidence on how empowerment affects engagement with the state
American Journal of Political Science, EarlyView.Abstract Building a strong and effective state requires revenue. Yet, in many low‐income countries, citizens do not make formal payments to the state or forego engaging with the state altogether due to vulnerability to opportunistic demands by state agents. We study two randomized interventions in Kinshasa, Democratic Republic of the Congo, designed to
Soeren J. Henn +4 more
wiley +1 more source
Research Direction and Science Evaluation: The Role of Coherence and Alignment
Journal of Economics &Management Strategy, EarlyView.ABSTRACT The decisions of funding agencies greatly influence the direction of scientific research; however, our understanding of how applicants' research directions affect the selection process remains limited. In this study, we investigate how a project's coherence with a scientist's previous work and its alignment with current scientific trends ...
Charles Ayoubi +3 more
wiley +1 more source
Recent Progress in Lunar Laser Ranging at Grasse Laser Ranging Station
Earth and Space Science, 2020 Based on a fully passive space segment, the lunar laser ranging experiment is the last of the Apollo Lunar Surface Experiments Package to operate. Observations from the Grasse lunar laser ranging station have been made on a daily basis since the first ...
Julien Chabé +13 more
doaj +1 more source
Detection of a very bright optical flare from a gamma-ray burst at redshift 6.29
, 2005 In this letter we discuss the flux and the behavior of the bright optical flare emission detected by the 25 cm TAROT robotic telescope during the prompt high-energy emission and the early afterglow.
A. Klotz +7 more
core +2 more sources
Soft X-ray analysis of a loop flare on the Sun [PDF]
, 2004 We present the results of an analysis of soft X-ray images for a solar flare which occurred on 1992 July 11. This flare, as seen in Yohkoh Soft X-ray Telescope (SXT) images was of comparatively simple geometry, consisting of two bright footpoints early ...
Acton +37 more
core +3 more sources