Results 61 to 70 of about 185,965 (314)
On the red giant branch mass loss in 47 Tucanae: Constraints from the horizontal branch morphology [PDF]
, 2016 We obtain stringent constraints on the actual efficiency of mass loss for red giant branch stars in the Galactic globular cluster 47 Tuc, by comparing synthetic modeling based on stellar evolution tracks with the observed distribution of stars along the ...
Cassisi, S, Pietrinferni, A, Salaris, M
core +2 more sources
Multiple stellar populations in the Galactic globular cluster NGC 6752
, 2009 We have carried out high-precision photometry on a large number of archival HST images of the Galactic globular cluster NGC 6752, to search for signs of multiple stellar populations. We find a broadened main sequence, and demonstrate that this broadening
A. F. Marino +34 more
core +1 more source
On the Anomalous Red Giant Branch of the Globular Cluster ω Centauri
The Astrophysical Journal, 2005 Accepted for publication on ApJ. High resolution figures can be downloaded from ftp://ftp.mporzio.astro.it/dist/monelli2/
P. B. Stetson +26 more
openaire +5 more sources
CHEMICAL INHOMOGENEITY IN RED GIANT BRANCH STARS AND RR LYRAE VARIABLES IN NGC 1851: TWO SUBPOPULATIONS IN RED GIANT BRANCH [PDF]
The Astrophysical Journal, 2009 We investigate the red giant branch (RGB) subpopulations of NGC 1851 using Ca uvby photometry. Our color-magnitude diagrams show that the RGB stars have two subpopulations and the RGB stars in NGC 1851 appear to have distinct elemental abundance patterns with the [Ca/H] abundance. We discuss that the elemental abundance patterns can be explained by the
Young Woon Kang +9 more
openaire +3 more sources
A New Color-Magnitude Diagram for Palomar 11 [PDF]
, 2006 We present new photometry for the Galactic thick disk globular cluster Palomar 11 extending well past the main sequence turn-off in the V and I bands. This photometry shows noticeable red giant and subgiant branches.
Brian Chaboyer +8 more
core +4 more sources
Lithium in M 67: From the main sequence to the red giant branch [PDF]
Astronomy & Astrophysics, 2012 14 pages, 4 figures, accepted by A& ...
G. Pace +4 more
openaire +4 more sources
Advanced Functional Materials, EarlyView.This review describes the different surface engineering strategies for quantum dots that addresses the challenges associated with surface defects, highlighting their role in enhancing the performance of solar energy conversion technologies. Abstract Colloidal quantum dots (QDs) have garnered significant attention for their unique potential in clean ...
Kokilavani S., Gurpreet Singh Selopal
wiley +1 more source
EPJ Web of Conferences, 2015 As the Kepler time series grew, so did the interest in the asteroseismology of very low-frequency solar-like oscillators. It is possible to accurately resolve modes for stars near the tip of the red giant branch.
Compton Douglas L. +2 more
doaj +1 more source
Advanced Healthcare Materials, EarlyView.Membrane fusion‐inspired nanomaterials offer transformative potential in diagnostics by mimicking natural fusion processes to achieve highly sensitive and specific detection of disease biomarkers. This review highlights recent advancements in nanomaterial functionalization strategies, signal amplification systems, and stimuli‐responsive fusion designs,
Sojeong Lee +9 more
wiley +1 more source
Blue Stragglers After the Main Sequence [PDF]
, 2008 We study the post-main sequence evolution of products of collisions between main sequence stars (blue stragglers), with particular interest paid to the horizontal branch and asymptotic giant branch phases.
Alison Sills +22 more
core +1 more source