Results 251 to 260 of about 12,886 (274)

Blue Straggler Stars of NGC 7789 and NGC 2506 Using AstroSat/UVIT

Bulletin de la Société royale des sciences de Liège
Blue straggler stars are intriguing objects that seem to defy the standard theory of single-star evolution. They manage to elongate their main-sequence lifetimes by acquiring mass either in a direct stellar collision or through mass transfer in a binary ...
K. Vaidya, Anju Panthi, Vikrant V. Jadhav, Khushboo K. Rao, S. Pandey, A. Subramaniam, Manan Agarwal   +6 more
semanticscholar   +1 more source

Abundance patterns in unevolved A stars and in blue stragglers

AIP Conference Proceedings, 1995
On the basis of high‐resolution spectrometry and NLTE analysis we investigate abundance patterns of non‐nuclear origin in normal main‐sequence A stars and in their metal‐deficient counterparts, the Lambda Bootis stars. We try to identify and separate the effects of diffusion (gravitational settling, radiative levitation) and accretion (separation of ...
Michael Lemke, Hartmut Holweger, Sven Stürenburg, Inga Rentzsch-Holm   +3 more
openaire   +2 more sources

The Formation and Evolution of Blue Straggler Stars in Globular Cluster

, 2017
In Chap. 3, we know binaries already play a important role in stellar interactions. At an early stage, stellar interactions would disrupt most of soft binaries in a SC. However, the hard binaries would survive at this stage and continue with their further evolution, which would finally lead them to merge, resulting in BSS.
Chengyuan Li
semanticscholar   +3 more sources

Spectroscopy of Blue Stragglers and Turno. Stars in NGC 2506 with FLAMES

2006
We present preliminary results of lithium abundances in turnoff stars in the open cluster NGC 2506. Some fifty turnoff stars and a few blue stragglers have been observed using the FLAMES facility on the VLT, during half a night from the French Guaranteed Time on this instrument.
Royer, Frédéric, Gómez, A. E.
openaire   +4 more sources

Green, Turquoise, Blue, or Grey? Environmentally friendly Hydrogen Production in Transforming Energy Systems

Progress in Energy and Combustion Science, 2022
Matthias Hermesmann
exaly  

Harvesting Blue Energy Based on Salinity and Temperature Gradient: Challenges, Solutions, and Opportunities

Chemical Reviews, 2023
Mohtada Sadrzadeh
exaly  

Blue carbon as a natural climate solution

Nature Reviews Earth & Environment, 2021
Peter I Macreadie, Trisha B Atwood, Jeffrey J Kelleway   +2 more
exaly  

Stable pure-blue hyperfluorescence organic light-emitting diodes with high-efficiency and narrow emission

Nature Photonics, 2021
Chin-Yiu Chan, Masaki Tanaka, Hajime Nakanotani   +2 more
exaly  

Confining isolated chromophores for highly efficient blue phosphorescence

Nature Materials, 2021
Huifang Shi, Mingxing Gu, Yujian Zhang
exaly  

Bipolar-shell resurfacing for blue LEDs based on strongly confined perovskite quantum dots

Nature Nanotechnology, 2020
Yitong Dong, Ya-Kun Wang, Fanglong Yuan
exaly