Photometry and Polarimetry in Trumpler 21

Details Photometry and Polarimetry in Trumpler 21 Photometry and Polarimetry in Trumpler 21

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998larm.confe.113g&link_type=abstract

"IX Latin American Regional IAU Meeting, "Focal Points in Latin American Astronomy", held in Tonantzintla, Mexico, Nov 9-13, 199

Astronomy and Astrophysics

Astronomy

Scientific paper

We present results from CCD UBVI photometric observations down to V = 19 mag and polarimetric observations up to V = 13 mag in the open cluster Trumpler 21. This cluster is interesting because it is located near the supernova remnant SNR G307.6-03 but the reality of any physical connection between them is far to be clear. According with our analysis the cluster distance is d = 1450 pc. (Vo - Mv = 10. 8), has a mean color excess E(B-V) = 0.25 and its age is between 25 and 30 10^6 years. From the polarimetric study, we could see that the polarization in this direction is about 1% and almost parallel to the galactic plane. We have also calculated the luminosity and mass functions slopes.

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