Infrared photometry of upper main sequence stars in M39

Bibcode
1991A&AS...87..419M
Manteiga, M.; Martinez-Roger, C.; Morales, C.; Sabau, L.
Bibliographical reference

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 87, no. 3, March 1991, p. 419-423.

Advertised on:
3
1991
Number of authors
4
IAC number of authors
2
Citations
4
Refereed citations
4
Description
Infrared photometry of 19 Main sequence stars in the open cluster M39 is presented. Infrared-infrared and optical-infrared color-color and color-magnitude diagrams are presented and compared with mean intrinsic color for Population I stars. An interstellar reddening of E(B - V) = 0.01 is obtained by analysis of the color-color diagrams. Comparison with a set of theoretical isochrones leads to an age estimate for the cluster between 240 and 480 million years.
Type
Refereed
Infrared photometry
Main sequence stars
Binary stars
Interstellar extinction
Radial velocity

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