SIMBAD references

2011ApJ...741L..27M - Astrophys. J., 741, L27 (2011/November-2)

New evidence supporting membership for TW Nor in lyngå 6 and the Centaurus spiral arm.

MAJAESS D., TURNER D., MONI BIDIN C., MAURO F., GEISLER D., GIEREN W., MINNITI D., CHENE A.-N., LUCAS P., BORISSOVA J., KURTEV R., DEKANY I. and SAITO R.K.

Abstract (from CDS):

The putative association between the classical Cepheid TW Nor and the open cluster Lyngå 6 has generated considerable debate in the literature. New JHKs photometry in tandem with existing radial velocities for Lyngå 6 stars implies cluster membership for TW Nor and establishes the variable as a high-weight calibrator for classical Cepheid relations. Fundamental mean parameters determined for Lyngå 6 are: d = 1.91±0.10 kpc, E(J - H) = 0.38±0.02, and log τ = 7.9±0.1. The Benedict et al./Turner Galactic VIc Wesenheit function was revised using TW Nor's new parameters: W_VI, 0_= (- 3.37±0.08)log P0- 2.48±0.08. TW Nor/Lyngå 6 lie beyond the Sagittarius-Carina spiral arm and occupy the Centaurus arm, along with innumerable young Cepheids and clusters (e.g., VW Cen and VVV CL070).

Abstract Copyright:

Journal keyword(s): dust, extinction - Hertzsprung-Russell and C-M diagrams - infrared: stars - open clusters and associations: individual: Lynga 6 - stars: distances - stars: variables: Cepheids

Simbad objects: 27

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2019.12.06-03:53:43

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