SIMBAD references

2018ApJ...858...12H - Astrophys. J., 858, 12-12 (2018/May-1)

The near-infrared tip of the red giant branch. II. An absolute calibration in the Large Magellanic Cloud.

HOYT T.J., FREEDMAN W.L., MADORE B.F., SEIBERT M., BEATON R.L., HATT D., JANG I.S., LEE M.G., MONSON A.J. and RICH J.A.

Abstract (from CDS):

We present a new empirical JHK absolute calibration of the tip of the red giant branch (TRGB) in the Large Magellanic Cloud (LMC). We use published data from the extensive Near-Infrared Synoptic Survey containing 3.5 million stars, 65,000 of which are red giants that fall within one magnitude of the TRGB. Adopting the TRGB slopes from a companion study of the isolated dwarf galaxy IC 1613, as well as an LMC distance modulus of µ0 = 18.49 mag from (geometric) detached eclipsing binaries, we derive absolute JHK zero points for the near-infrared TRGB. For a comparison with measurements in the bar alone, we apply the calibrated JHK TRGB to a 500 deg2 area of the 2MASS survey. The TRGB reveals the 3D structure of the LMC with a tilt in the direction perpendicular to the major axis of the bar, which is in agreement with previous studies.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): distance scale - galaxies: distances and redshifts - galaxies: stellar content - infrared: stars - Magellanic Clouds - stars: Population II

Simbad objects: 5

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2019.10.17-18:42:56

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