SIMBAD references

2016AcA....66..469K - Acta Astron., 66, 469-480 (2016/December-0)

Gray Extinction in the Orion Trapezium.

KRELOWSKI J., GALAZUTDINOV G.A., STROBEL A. and MULAS G.

Abstract (from CDS):

We estimated distances to several Orion Trapezium stars using our CaII-method and confirm the distance recommended by Menten et al. However, we found that in the case of HD 37020 both individualdistances (based on the trigonometric VLBI parallax and/or CaII-method) differ from the spectrophotometric distance by a factor of 2.5. We interpret this fact as a result of presence of gray (neutral) extinction of about 1.8 mag in front of this star. The correctness of the applied spectral type/ luminosity class, Sp/L, (based on new original spectra from HARPS-N) and measurements of color indices is discussed.

Abstract Copyright:

Journal keyword(s): ISM: clouds - dust, extinction

Simbad objects: 18

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2019.09.21-18:08:02

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