On the stellar content of the open clusters Melotte 105, Hogg 15, Pismis 21 and Ruprecht 140

Details On the stellar content of the open clusters Melotte 105, Hogg 15, Pismis 21 and Ruprecht 140 On the stellar content of the open clusters Melotte 105, Hogg 15, Pismis 21 and Ruprecht 140

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26a...370..931p&link_type=abstract

Astronomy and Astrophysics, v.370, p.931-938 (2001)

Astronomy and Astrophysics

Astrophysics

12

Open Clusters: Individual: Melotte 105, Hogg 15, Pismis 21, Ruprecht 140, Open Clusters: General, Techniques: Photometric

Scientific paper

CCD observations in the B, V and I passbands have been used to generate colour-magnitude diagrams reaching down to V ~ 19 mag for two slightly characterized (Melotte 105 and Hogg 15) and two almost unstudied (Pismis 21 and Ruprecht 140) open clusters. The sample consists of about 1300 stars observed in fields of about 4arcmin x4arcmin . Our analysis shows that neither Pismis 21 nor Ruprecht 140 are genuine open clusters since no clear main sequences or other meaningful features can be seen in their colour-magnitude diagrams. Melotte 105 and Hogg 15 are open clusters affected by E(B-V) = 0.42 +/- 0.03 and 0.95 +/- 0.05, respectively. Their distances to the Sun have been estimated as 2.2 +/- 0.3 and 2.6 +/- 0.08 kpc, respectively, while the corresponding ages estimated from empirical isochrones fitted to the Main Sequence cluster members are ~ 350 Myr and 300 Myr, respectively. The present data are not consistent with the membership of the WN6 star HDE 311884 to Hogg 15. Tables 2 to 5 are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.793.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/370/931

Affiliated with

Also associated with

No associations

Rating

On the stellar content of the open clusters Melotte 105, Hogg 15, Pismis 21 and Ruprecht 140 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 On the stellar content of the open clusters Melotte 105, Hogg 15, Pismis 21 and Ruprecht 140, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the stellar content of the open clusters Melotte 105, Hogg 15, Pismis 21 and Ruprecht 140 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1266323