Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-01-20
Astron.Astrophys. 417 (2004) 961-972
Astronomy and Astrophysics
Astrophysics
12 pages, 10 eps figures, in press in A&A
Scientific paper
10.1051/0004-6361:20034427
We present CCD broad band photometric observations in the fields of the Third Galactic Quadrant open clusters NGC 2580 and NGC 2588 ($V(I)_C$ and $UBV(RI)_C$ respectively). From the analysis of our data we found that NGC 2580 is located at a distance of about 4 kpc and its age is close to 160 Myr. As for NGC 2588, it is placed at about 5 kpc from the Sun and is 450 Myr old. This means that NGC 2588 belongs to the extension of the Perseus arm, whereas NGC 2580 is closer to the local arm structure. The luminosity functions (LFs) have been constructed for both clusters down to $V \sim 20$ together with their initial mass functions (IMFs) for stars with masses above $M \sim 1-1.5 M_{\sun}$. The IMF slopes for the most massive bins yielded values of $x \approx 1.3$ for NGC 2580 and $x \approx 2$ for NGC 2588. In the case of this latter cluster we found evidence of a core-corona structure produced probably by dynamical effect. In the main sequences of both clusters we detected gaps, which we suggest could be real features.
Baume Gustavo
Carraro Giovanni
Giorgi E. E.
Moitinho Andre
Vazquez Ruben
No associations
LandOfFree
NGC 2580 and NGC 2588: Two open clusters in the Third Galactic Quadrant does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with NGC 2580 and NGC 2588: Two open clusters in the Third Galactic Quadrant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NGC 2580 and NGC 2588: Two open clusters in the Third Galactic Quadrant will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-392158