Abundance Gradients in Local Group Galaxies Using Asymptotic Giant Branch Stars

2006 ◽  
pp. 121-125
Author(s):  
Maria–Rosa Cioni
Keyword(s):  
Local Group ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Giant Branch Stars

scholarly journals ASPITZERSTUDY OF ASYMPTOTIC GIANT BRANCH STARS. III. DUST PRODUCTION AND GAS RETURN IN LOCAL GROUP DWARF IRREGULAR GALAXIES

2009 ◽  
Vol 697 (2) ◽  
pp. 1993-2014 ◽  
Author(s):  
Martha L. Boyer ◽  
Evan D. Skillman ◽  
Jacco Th. van Loon ◽  
Robert D. Gehrz ◽  
Charles E. Woodward
Keyword(s):  
Local Group ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Dust Production ◽  
Irregular Galaxies ◽  
Dwarf Irregular Galaxies ◽  
Giant Branch Stars

scholarly journals The Local Group galaxy NGC 6822 and its asymptotic giant branch stars

2012 ◽  
Vol 428 (3) ◽  
pp. 2216-2231 ◽  
Author(s):  
Patricia A. Whitelock ◽  
John W. Menzies ◽  
Michael W. Feast ◽  
Francois Nsengiyumva ◽  
Noriyuki Matsunaga
Keyword(s):  
Local Group ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Ngc 6822 ◽  
Giant Branch Stars ◽  
Group Galaxy ◽  
Local Group Galaxy

Observations of High Rotational CO Lines in Post–Asymptotic Giant Branch Stars and Planetary Nebulae

1997 ◽  
Vol 476 (1) ◽  
pp. 319-326 ◽  
Author(s):  
K. Justtanont ◽  
A. G. G. M. Tielens ◽  
C. J. Skinner ◽  
Michael R. Haas
Keyword(s):  
Planetary Nebulae ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Giant Branch Stars

scholarly journals Carbon stars as standard candles – II. The median J magnitude as a distance indicator

2020 ◽  
Vol 501 (1) ◽  
pp. 933-947
Author(s):  
Javiera Parada ◽  
Jeremy Heyl ◽  
Harvey Richer ◽  
Paul Ripoche ◽  
Laurie Rousseau-Nepton
Keyword(s):  
Luminosity Function ◽  
Asymptotic Giant Branch ◽  
Distance Modulus ◽  
Asymptotic Giant Branch Stars ◽  
Luminosity Functions ◽  
Best Fitting ◽  
Distance Indicator ◽  
Ngc 6822 ◽  
The Given ◽  
Giant Branch Stars

ABSTRACT We introduce a new distance determination method using carbon-rich asymptotic giant branch stars (CS) as standard candles and the Large and Small Magellanic Clouds (LMC and SMC) as the fundamental calibrators. We select the samples of CS from the ((J − Ks)0, J0) colour–magnitude diagrams, as, in this combination of filters, CS are bright and easy to identify. We fit the CS J-band luminosity functions using a Lorentzian distribution modified to allow the distribution to be asymmetric. We use the parameters of the best-fitting distribution to determine if the CS luminosity function of a given galaxy resembles that of the LMC or SMC. Based on this resemblance, we use either the LMC or SMC as the calibrator and estimate the distance to the given galaxy using the median J magnitude ($\overline{J}$) of the CS samples. We apply this new method to the two Local Group galaxies NGC 6822 and IC 1613. We find that NGC 6822 has an ‘LMC-like’ CS luminosity function, while IC 1613 is more ‘SMC-like’. Using the values for the median absolute J magnitude for the LMC and SMC found in Paper I we find a distance modulus of μ0 = 23.54 ± 0.03 (stat) for NGC 6822 and μ0 = 24.34 ± 0.05 (stat) for IC 1613.

Finite Temperature Behavior of Carbon Atom Doped Silicon Clusters: Depressed Thermal Stabilities, Co-existing isomers, Reversible Dynamical Pathways and Fragmentation Channels

2021 ◽  
Author(s):  
Krati Joshi ◽  
Ashakiran Maibam ◽  
Sailaja Krishnamurty
Keyword(s):  
Silicon Carbide ◽  
Carbon Atom ◽  
Finite Temperature ◽  
Asymptotic Giant Branch ◽  
Temperature Behavior ◽  
Asymptotic Giant Branch Stars ◽  
Silicon Clusters ◽  
Thermal Stabilities ◽  
Doped Silicon ◽  
Giant Branch Stars

Silicon carbide clusters are significant due to their predominant occurrence in meteoric star dust, particularly in carbon rich asymptotic giant branch stars. Of late, they have also been recognized as...

scholarly journals A new synthetic model for asymptotic giant branch stars

2004 ◽  
Vol 350 (2) ◽  
pp. 407-426 ◽  
Author(s):  
Robert G. Izzard ◽  
Christopher A. Tout ◽  
Amanda I. Karakas ◽  
Onno R. Pols
Keyword(s):  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Synthetic Model ◽  
Giant Branch Stars

scholarly journals Evolution of asymptotic giant branch stars

2007 ◽  
Vol 469 (1) ◽  
pp. 239-263 ◽  
Author(s):  
P. Marigo ◽  
L. Girardi
Keyword(s):  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Giant Branch Stars

scholarly journals Rubidium and zirconium abundances in massive Galactic asymptotic giant branch stars revisited

2017 ◽  
Vol 606 ◽  
pp. A20 ◽  
Author(s):  
V. Pérez-Mesa ◽  
O. Zamora ◽  
D. A. García-Hernández ◽  
B. Plez ◽  
A. Manchado ◽  
...  
Keyword(s):  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Giant Branch Stars

Magnetically Driven Winds from Post–Asymptotic Giant Branch Stars: Solutions for High‐Speed Winds and Extreme Collimation

2005 ◽  
Vol 618 (2) ◽  
pp. 919-925 ◽  
Author(s):  
Guillermo Garcia‐Segura ◽  
Jose Alberto Lopez ◽  
Jose Franco
Keyword(s):  
High Speed ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Giant Branch Stars
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