SIMBAD references

1997A&A...327..125M - Astronomy and Astrophysics, volume 327, 125-129 (1997/11-1)

Dust properties in the direction of Trumpler 37.

MORBIDELLI L., PATRIARCHI P., PERINOTTO M., BARBARO G. and DI BARTOLOMEO A.

Abstract (from CDS):

The fourteen brightest OB stars of the Trumpler 37 Cluster have been observed in the V,R,I,J,H,K photometric bands. These have been used to derive accurate measurements of the quantity RV=AV/E(B-V). Different from previous studies it is found that <RV> in Trumpler 37 is close to the mean interstellar value of 3.1. Most of the reddening towards Trumpler 37 is found to be of foreground origin. This is consistent with the lack of variations, observed by us, of RV with the projected distance from the center of the cluster. In two highly reddened stars of the cluster, whose reddening is certainly mostly local, the observed RV is lower than the mean interstellar value of 3.1. This is to be compared with the behaviour of the Trapezium stars in Orion, whose RV is quite above such value whereas the age of the cluster is similar to the one of Trumpler 37.

Abstract Copyright:

Journal keyword(s): clusters: open, and associations - Interstellar medium: extinction

Nomenclature: Table 1: Cl* Trumpler 37 MPP NN (Nos 1-17)

Simbad objects: 32

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