New Results for the Open Cluster Bica 6 and its Associated Planetary Nebula Abell 8

Details New Results for the Open Cluster Bica 6 and its Associated Planetary Nebula Abell 8 New Results for the Open Cluster Bica 6 and its Associated Planetary Nebula Abell 8

2011-09-27

arxiv.org/abs/1109.6006v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Accepted for Publication (PASP)

Scientific paper

The likely membership of the planetary nebula Abell 8 (PN G167.0--00.9) in the open cluster Bica 6 is confirmed by CCD spectra, UBV(RI)c photometry, and radial velocities for luminous cluster stars. The reddening, estimated distance, and radial velocity of the planetary nebula agree with parameters derived for Bica 6 of E(B-V)=0.42, d=1.60+-0.11 kpc, and Vr=57+-1 km/s, with a cluster age of 1 Gyr, a diagnostic blue hook, and a few blue stragglers, including a peculiar B1 Vnn star (HDE 277593) that may be a post-AGB star. The results identify Bica 6 as a potential calibrator of the planetary nebula distance scale. The central star of the planetary nebula has a reddening of E(B-V)=0.49+-0.02, with a possible circumnebular excess, and an estimated luminosity of Mv=+7.44+-0.16. It is also an optical double in 2MASS images, with a likely progenitor according to evolutionary considerations being a late B-type dwarf of ~2.3 Msun.

Affiliated with

Also associated with

No associations

Rating

New Results for the Open Cluster Bica 6 and its Associated Planetary Nebula Abell 8 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 New Results for the Open Cluster Bica 6 and its Associated Planetary Nebula Abell 8, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Results for the Open Cluster Bica 6 and its Associated Planetary Nebula Abell 8 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-42027