Results 91 to 100 of about 10,144 (259)

The Distance to the Pleiades Revisited [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
AbstractThe parallax of the Pleiades has been mired in controversy ever since the very first astrometric measures in the late 1880s. Over a century later, the measures from the HIPPARCOS catalogue gave results which were inconsistent with the distance inferred from the fitting of the colour-magnitude diagram. We briefly review here the debate and focus
openaire   +3 more sources

Rapid Changes in Retrogressive Thaw Slump Dynamics in the Russian High Arctic Based on Very High‐Resolution Remote Sensing

open access: yesGeophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract We used very high‐resolution satellite images to map the development of retrogressive thaw slumps (RTS) at six sites in the Russian High Arctic for the period 2011 to 2020. The 3,466 mapped RTS revealed an overall high activity, with site‐specific increases of RTS‐affected area up to +2,700% and RTS numbers up to +1,294%.
S. Barth   +4 more
wiley   +1 more source

Peculiarities of «liquid – solid» phase equilibria in Six-Ge1-x nanoparticles for various mutual arrangements of phases

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов
The application of 3D nanocrystalline materials obtained using the liquid-phase and solid-phase powder metallurgy technologies is one of the basic approaches to designing high-efficiency and low-cost thermoelectric energy converters.
A.V. Shishulin   +2 more
doaj   +1 more source

Estimating quantitative forest attributes using Pleiades satellite data and non-parametric algorithms in Darabkola forests, Mazandaran [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2015
Knowledge on quantitative forest attributes is a prerequisite for forest stand management. The aim of this study was to evaluate high resolution Pleiades data in estimating the standing volume and basal area using non-parametric algorithms in Darabkola ...
Mojgan Zahriban   +3 more
doaj   +1 more source

Agamemnon, Troy and the Pleiades

open access: yesRevue belge de philologie et d'histoire, 1984
Fisher Roger S., Lewis A.-M. Agamemnon, Troy and the Pleiades. In: Revue belge de philologie et d'histoire, tome 62, fasc. 1, 1984. Antiquité — Oudheid. pp. 5-15.
Fisher, Roger S., Lewis, Anne-Marie
openaire   +3 more sources

Inter‐eruptive lahars at El Chichón Volcano (Mexico): Susceptibility analysis and numerical modelling

open access: yesEarth Surface Processes and Landforms, Volume 50, Issue 5, April 2025.
The Gumbel distribution allowed for defining rainfall scenarios and return periods, based on which rainfall‐runoff simulations were performed for each watershed draining from the volcano. The outflow hydrographs were used to simulate lahars from the main cone to the river system that bound the volcano.
Omar Cruz‐Vázquez   +3 more
wiley   +1 more source

The inflated radii of M-dwarfs in the Pleiades [PDF]

open access: yes, 2018
Rotation periods obtained with the Kepler satellite have been combined with precise measurements of projected rotation velocity from the WIYN 3.5-m telescope to determine the distribution of projected radii for several hundred low-mass ($0.1 \leq M/M_ ...
R. Jackson   +4 more
semanticscholar   +1 more source

The Distribution of Stellar Mass in the Pleiades [PDF]

open access: yesThe Astrophysical Journal, 2008
As part of an effort to understand the origin of open clusters, we present a statistical analysis of the currently observed Pleiades. Starting with a photometric catalog of the cluster, we employ a maximum likelihood technique to determine the mass distribution of its members, including single stars and both components of binary systems.
Steven W. Stahler, Joseph M. Converse
openaire   +4 more sources

Combining satellite and field data reveals Congo's forest types structure, functioning and composition

open access: yesRemote Sensing in Ecology and Conservation, Volume 11, Issue 2, Page 200-220, April 2025.
Using Sentinel‐2 satellite images and recent deep learning architectures, we built a large‐scale vegetation map of the North of Congo and assessed the environmental drivers of the main forest types, their forest structure, their floristic and functional compositions, and their faunistic composition.
Juliette Picard   +13 more
wiley   +1 more source

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