The Vela-Puppis open clusters Pismis 8 and Pismis 13

Details The Vela-Puppis open clusters Pismis 8 and Pismis 13 The Vela-Puppis open clusters Pismis 8 and Pismis 13

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005a%26a...432..491g&link_type=abstract

Astronomy and Astrophysics, Volume 432, Issue 2, March III 2005, pp.491-500

Astronomy and Astrophysics

Astrophysics

5

Galaxy: Open Clusters And Associations: Individual: Pismis 8, Pismis 13, Stars: Luminosity Function, Mass Function, Stars: Hertzsprung-Russell (H-R) And C-M Diagrams

Scientific paper

CCD UBVI imaging photometry was carried out in the fields of the open clusters Pismis 8 and Pismis 13, located in the Vela-Puppis region in our Galaxy. MK spectral types have also been determined for a number of stars located in the fields of these two clusters which were used to secure membership among the brightest stars. Since our photometry goes to a fainter limit than previous studies we could provide better reddening, distance and age determinations. Both clusters are located close to the edge of the local arm in the third quadrant. Pismis 8 is a cluster about 5-7 My old located at 2000 pc from the Sun, while Pismis 13 was found at 2750 pc with a probable age of about 100 My. The estimate of the slopes of the mass functions in both cases yielded x≈ 1.7 and x≈ 2.1 for Pismis 8 and 13 respectively.
Based on observations collected at the University of Toronto Southern Observatory, Las Campanas, Chile, and the Complejo Astronómico El Leoncito, San Juan, Argentina. Table 3 is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/432/491

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