Results 11 to 20 of about 180,740 (304)
Theoretical Uncertainties in Red Giant Branch Evolution: The Red Giant Branch Bump [PDF]
The Astrophysical Journal, 2005 A Monte Carlo simulation exploring uncertainties in standard stellar evolution theory on the red giant branch of metal-poor globular clusters has been conducted.
Alongi M. +11 more
core +6 more sources
Quantifying Uncertainties on the Tip of the Red Giant Branch Method
The Astronomical Journal, 2023 We present an extensive grid of numerical simulations quantifying the uncertainties in measurements of the tip of the red giant branch (TRGB). These simulations incorporate a luminosity function composed of 2 mag of red giant branch (RGB) stars leading ...
Barry F. Madore +3 more
doaj +3 more sources
Theoretical red-giant branches for globular clusters [PDF]
Symposium - International Astronomical Union, 1984 VandenBerg (1983a; hereinafter V) has recently computed a large grid of stellar evolutionary sequences from the zero-age main sequence to the base of the red-giant branch (RGB) and carried out extensive comparisons of the associated isochrones with published photometry of globular clusters (GCs).
Don A. VandenBerg
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The analysis of red giant branch photometry in galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 We present an analysis of the many possible methods for simulating and analysing colour-magnitude diagrams, with application to studies of the field halo stellar populations of resolved galaxies. Special consideration is made to the analysis of stars on the Red Giant branch (RGB), and methods for obtaining metallicity distributions for old populations ...
Colin Frayn, G. Gilmore
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SHARPENING THE TIP OF THE RED GIANT BRANCH [PDF]
The Astrophysical Journal, 2008 9 pages, 6 figures; to be published in the Astrophysical ...
Barry F. Madore +2 more
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The Aarhus red giants challenge [PDF]
Astronomy & Astrophysics, 2020 Context.With the advent of space-based asteroseismology, determining accurate properties of red-giant stars using their observed oscillations has become the focus of many investigations due to their implications in a variety of fields in astrophysics.
George C. Angelou +37 more
openaire +18 more sources
Detection of the Tip of the Red Giant Branch in NGC 5128 [PDF]
The Astrophysical Journal, 1996 We present a color-magnitude diagram of more than 10,000 stars in the halo of the galaxy NGC 5128 (Centaurus A), based on WFPC2 images through V-band and I-band filters. The position of the red giant branch (RGB) stars is compared with the loci of the red giant branch in six well-studied globular clusters and in the dwarf elliptical galaxy NGC 185; the
Roberto Soria +16 more
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The Metallicity of the Red Giant Branch in the Disk of NGC 6822 [PDF]
Publications of the Astronomical Society of the Pacific, 2003 Deep J, H, and K' images obtained with the Canada-France-Hawaii Telescope adaptive optics system are used to investigate the metallicity of red giant branch (RGB) stars in three fields in the disk of the Local Group dwarf irregular galaxy NGC 6822. The slope of the RGB on the (K, J-K) color-magnitude diagrams indicates that = -1.0 +/- 0.3. The locus of
T. J. Davidge
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The Tip of the Red Giant Branch
, 2007 I review the latest results on the calibration of the Tip of the Red Giant Branch as a standard candle, in the optical and in the near infrared. The agreement among different and independent empirical calibrations is rather good, if all the uncertainties are taken into account.
M. Bellazzini
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Surface effects on the red giant branch [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 13 pages, 7 figures, accepted in ...
Saskia Hekker +6 more
openaire +5 more sources