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Title: THE ARAUCARIA PROJECT: ON THE TIP OF THE RED GIANT BRANCH DISTANCE DETERMINATION TO THE MAGELLANIC CLOUDS

Abstract

We present a precise optical and near-infrared determination of the tip of the red giant branch (TRGB) brightness in the Large and Small Magellanic Clouds (respectively, LMC and SMC). The commonly used calibrations of the absolute magnitude of the TRGB lead to an overestimation of the distance to the LMC and SMC in the K band, and an underestimation of the distance in the optical I band for both galaxies. Reported discrepancies are at the level of 0.2 mag, with respect to the very accurate distance determinations to both MCs based on late-type eclipsing binaries. The differential distances between the LMC and SMC obtained in the J and K bands, and for the bolometric brightness are consistent with each other, and with the results obtained from eclipsing binaries and other distance indicators.

Authors:
; ; ;  [1];
  1. Millennium Astrophysical Institute, Santiago (Chile)
Publication Date:
OSTI Identifier:
22663010
Resource Type:
Journal Article
Journal Name:
Astronomical Journal (Online)
Additional Journal Information:
Journal Volume: 151; Journal Issue: 6; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1538-3881
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTROPHYSICS; BINARY STARS; BOLOMETERS; BRIGHTNESS; CALIBRATION; DISTANCE; ECLIPSE; INDICATORS; MAGELLANIC CLOUDS; NEAR INFRARED RADIATION; RED GIANT STARS

Citation Formats

Górski, Marek, Gieren, Wolfgang, Catelan, Márcio, Graczyk, Dariusz, and others, and. THE ARAUCARIA PROJECT: ON THE TIP OF THE RED GIANT BRANCH DISTANCE DETERMINATION TO THE MAGELLANIC CLOUDS. United States: N. p., 2016. Web. doi:10.3847/0004-6256/151/6/167.
Górski, Marek, Gieren, Wolfgang, Catelan, Márcio, Graczyk, Dariusz, & others, and. THE ARAUCARIA PROJECT: ON THE TIP OF THE RED GIANT BRANCH DISTANCE DETERMINATION TO THE MAGELLANIC CLOUDS. United States. https://doi.org/10.3847/0004-6256/151/6/167
Górski, Marek, Gieren, Wolfgang, Catelan, Márcio, Graczyk, Dariusz, and others, and. 2016. "THE ARAUCARIA PROJECT: ON THE TIP OF THE RED GIANT BRANCH DISTANCE DETERMINATION TO THE MAGELLANIC CLOUDS". United States. https://doi.org/10.3847/0004-6256/151/6/167.
@article{osti_22663010,
title = {THE ARAUCARIA PROJECT: ON THE TIP OF THE RED GIANT BRANCH DISTANCE DETERMINATION TO THE MAGELLANIC CLOUDS},
author = {Górski, Marek and Gieren, Wolfgang and Catelan, Márcio and Graczyk, Dariusz and others, and},
abstractNote = {We present a precise optical and near-infrared determination of the tip of the red giant branch (TRGB) brightness in the Large and Small Magellanic Clouds (respectively, LMC and SMC). The commonly used calibrations of the absolute magnitude of the TRGB lead to an overestimation of the distance to the LMC and SMC in the K band, and an underestimation of the distance in the optical I band for both galaxies. Reported discrepancies are at the level of 0.2 mag, with respect to the very accurate distance determinations to both MCs based on late-type eclipsing binaries. The differential distances between the LMC and SMC obtained in the J and K bands, and for the bolometric brightness are consistent with each other, and with the results obtained from eclipsing binaries and other distance indicators.},
doi = {10.3847/0004-6256/151/6/167},
url = {https://www.osti.gov/biblio/22663010}, journal = {Astronomical Journal (Online)},
issn = {1538-3881},
number = 6,
volume = 151,
place = {United States},
year = {Wed Jun 01 00:00:00 EDT 2016},
month = {Wed Jun 01 00:00:00 EDT 2016}
}