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

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.

scholarly journals Chemical and Photometric Evolution of the Local Group Galaxy NGC 6822 in a Cosmological Context

2006 ◽  
Vol 644 (2) ◽  
pp. 924-939 ◽  
Author(s):  
Leticia Carigi ◽  
Pedro Colin ◽  
Manuel Peimbert
Keyword(s):  
Local Group ◽  
Cosmological Context ◽  
Ngc 6822 ◽  
Group Galaxy ◽  
Local Group Galaxy

scholarly journals The Local Group Galaxy IC 1613 and its asymptotic giant branch variables

2015 ◽  
Vol 452 (1) ◽  
pp. 910-923 ◽  
Author(s):  
John W. Menzies ◽  
Patricia A. Whitelock ◽  
Michael W. Feast
Keyword(s):  
Local Group ◽  
Asymptotic Giant Branch ◽  
Group Galaxy ◽  
Local Group Galaxy

scholarly journals Dust and molecules in the Local Group galaxy NGC 6822

2002 ◽  
Vol 397 (1) ◽  
pp. 87-97 ◽  
Author(s):  
F. P. Israel ◽  
F. Baas ◽  
R. J. Rudy ◽  
E. D. Skillman ◽  
C. E. Woodward
Keyword(s):  
Local Group ◽  
Ngc 6822 ◽  
Group Galaxy ◽  
Local Group Galaxy

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 Araucaria Project: The Distance to the Local Group Galaxy NGC 6822 from Cepheid Variables Discovered in a Wide-Field Imaging Survey

2004 ◽  
Vol 128 (6) ◽  
pp. 2815-2825 ◽  
Author(s):  
Grzegorz Pietrzyński ◽  
Wolfgang Gieren ◽  
Andrzej Udalski ◽  
Fabio Bresolin ◽  
Rolf-Peter Kudritzki ◽  
...  
Keyword(s):  
Local Group ◽  
Wide Field ◽  
Cepheid Variables ◽  
Ngc 6822 ◽  
Field Imaging ◽  
Wide Field Imaging ◽  
Group Galaxy ◽  
Local Group Galaxy

Asymptotic giant branch stars in NGC 6822: Probes of star formation history

1994 ◽  
Vol 425 ◽  
pp. L9 ◽  
Author(s):  
C. Gallart ◽  
A. Aparicio ◽  
C. Chiosi ◽  
G. Bertelli ◽  
J. M. Vilchez
Keyword(s):  
Star Formation ◽  
Asymptotic Giant Branch ◽  
Star Formation History ◽  
Asymptotic Giant Branch Stars ◽  
Formation History ◽  
Ngc 6822 ◽  
Giant Branch Stars

scholarly journals The Araucaria Project: An Accurate Distance to the Local Group Galaxy NGC 6822 from Near‐Infrared Photometry of Cepheid Variables

2006 ◽  
Vol 647 (2) ◽  
pp. 1056-1064 ◽  
Author(s):  
Wolfgang Gieren ◽  
Grzegorz Pietrzyński ◽  
Krzysztof Nalewajko ◽  
Igor Soszyński ◽  
Fabio Bresolin ◽  
...  
Keyword(s):  
Near Infrared ◽  
Local Group ◽  
Infrared Photometry ◽  
Cepheid Variables ◽  
Ngc 6822 ◽  
Group Galaxy ◽  
Local Group Galaxy

scholarly journals The evolved asymptotic giant branch stars in the central bar of the dwarf irregular galaxy NGC 6822

2006 ◽  
Vol 454 (3) ◽  
pp. 717-727 ◽  
Author(s):  
A. Kang ◽  
Y.-J. Sohn ◽  
H.-I. Kim ◽  
J. Rhee ◽  
J.-W. Kim ◽  
...  
Keyword(s):  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Irregular Galaxy ◽  
Ngc 6822 ◽  
Giant Branch Stars
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