SIMBAD references

2001ApJ...553L.133D - Astrophys. J., 553, L133-L136 (2001/June-1)

The detection of bright asymptotic giant branch stars in the nearby elliptical galaxy Maffei 1.


Abstract (from CDS):

We have used the adaptive optics system on the Canada-France-Hawaii Telescope to study a field 6' from the center of the heavily obscured elliptical galaxy Maffei 1. Our near diffraction-limited H and K' images reveal an excess population of objects with respect to a background field, and we conclude that the asymptotic giant branch (AGB) tip in Maffei 1 occurs at K=20±0.25. Assuming that stars at the AGB tip in Maffei 1 have the same intrinsic luminosity as those in the bulge of M31, then the actual distance modulus of Maffei 1 is 28.2±0.3 if AV=5.1, which corresponds to a distance of 4.4+0.6–0.5 Mpc. This is in excellent agreement with the distance estimated from surface brightness fluctuations in the infrared and confirms that Maffei 1 is too distant to affect the dynamics of the Local Group significantly.

Abstract Copyright:

Journal keyword(s): Galaxies: Distances and Redshifts - Galaxies: Individual: Name: Maffei 1

Simbad objects: 8

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