YIELD POTENTIAL IMPROVEMENT OF SOME LOWLAND RED RICE LINES IN F4 PEDIGREE SELECTION
Russian Journal of Agricultural and Socio-Economic Sciences, 2021 This study aimed to obtain F4 lines of red rice with high yield potential, high number of filled grains and early maturity compared to their parents (F2BC4P19-36, Fatmawati and IPB 3S varieties) through Pedigree selection. To make statistical comparison,
Suliartini N.W.S. +3 more
doaj +1 more source
A New Method for the Asteroseismic Determination of the Evolutionary State of Red-Giant Stars [PDF]
, 2016 Determining the ages of red-giant stars is a key problem in stellar astrophysics. One of the difficulties in this determination is to know the evolutionary state of the individual stars -- i.e. have they started to burn Helium in their cores? That is the
Basu, Sarbani +3 more
core +2 more sources
On the Correlation Between Metallicity and the X-Shaped Morphology of the Milky Way Bulge [PDF]
, 2014 We demonstrate that failure to properly account for stellar evolution can bias results in determinations of the spatial morphology of Galactic bulge stars, focusing on the question of whether or not the X-shape is more pronounced among the more metal ...
Athanassoula, E. +2 more
core +3 more sources
TWO RED CLUMPS AND THE X-SHAPED MILKY WAY BULGE [PDF]
The Astrophysical Journal, 2010 Accepted for publication in ApJ, revised following referee comments, 12 pages, 8 ...
McWilliam, A., Zoccali, Manuela
openaire +7 more sources
The Optical Gravitational Lensing Experiment. Red Clump Stars as a Distance Indicator
, 2000 We present relation of the mean I-band brightness of red clump stars on metallicity. Red clump stars were proposed to be a very attractive standard candle for distance determination.
A. Udalski +6 more
core +1 more source
Magnitude bias of microlensed sources towards the Large Magellanic Cloud [PDF]
, 1999 There are lines of evidence suggesting that some of the observed microlensing events in the direction of the Large Magellanic Cloud (LMC) are caused by ordinary star lenses as opposed to dark Machos in the Galactic halo.
David S. Graff +5 more
core +5 more sources
The spectroscopic indistinguishability of red giant branch and red clump stars [PDF]
Astronomy & Astrophysics, 2016 Stellar spectroscopy provides useful information on the physical properties of stars such as effective temperature, metallicity and surface gravity (log g). However, those photospheric characteristics are often hampered by systematic uncertainties. The joint spectro-seismo project (APOKASC) of field red giants has revealed a puzzling offset between the
T. Masseron, K. Hawkins
openaire +2 more sources
Inner galactic disc metallicity distributions and the bulge-disc relation
EPJ Web of Conferences, 2012 The intermediate-to-old population of the inner galactic disk remains a relatively uncharted territory. We present the results of a high resolution spectroscopic survey of over 200 red clump stars in the inner galactic disc (3–5 kpc from the galactic ...
Haywood M. +5 more
doaj +1 more source
, 2017 Red clump stars are fundamental distance indicators in astrophysics, although theoretical stellar models predict a dependence of absolute magnitudes with ages.
Aguirre, V. Silva +6 more
core +1 more source
From the Inner to Outer Milky Way: A Photometric Sample of 2.6 Million Red Clump Stars
, 2020 Large pristine samples of red clump stars are highly sought after given that they are standard candles and give precise distances even at large distances.
Hawkins, Keith +3 more
core +1 more source