SIMBAD references

2019ApJ...882..150H - Astrophys. J., 882, 150-150 (2019/September-2)

The carnegie chicago Hubble program. VI. Tip of the Red Giant Branch distances to M66 and M96 of the Leo I Group.

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

Abstract (from CDS):

We determine the distances to the Type Ia supernova host galaxies M66 (NGC 3627) and M96 (NGC 3368) of the Leo I Group using the Tip of the Red Giant Branch (TRGB) method. We target the stellar halos of these galaxies using the Hubble Space Telescope ACS/WFC in the F606W and F814W bandpasses. By pointing to the stellar halos we sample RGB stars predominantly of Population II, minimize host-galaxy reddening, and significantly reduce the effects of source crowding. Our absolute calibration of the I-band TRGB is based on a recent detached eclipsing binary distance to the Large Magellanic Cloud. With this geometric zero-point in hand, we find for M66 and M96, respectively, true distance moduli µ0 = 30.23 ± 0.04 (stat) ± 0.06 (sys) mag and µ0 = 30.29 ± 0.02 (stat) ± 0.06 (sys) mag.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): distance scale - galaxies: individual: (M66, M96) - galaxies: stellar content - stars: Population II

Simbad objects: 17

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2021.07.26-03:35:56

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