Detection of ionized gas in the globular cluster 47 Tucanae

Details Detection of ionized gas in the globular cluster 47 Tucanae Detection of ionized gas in the globular cluster 47 Tucanae

2001-07-11

arxiv.org/abs/astro-ph/0107206v1

Astrophys.J.557:L105-L108,2001

Astronomy and Astrophysics

Astrophysics

5 pages, 3 included figures, accepted for publication by ApJ Letters

Scientific paper

10.1086/323248

We report the detection of ionized intracluster gas in the globular cluster 47 Tucanae. Pulsars in this cluster with a negative period derivative, which must lie in the distant half of the cluster, have significantly higher measured integrated electron column densities than the pulsars with a positive period derivative. We derive the plasma density within the central few pc of the cluster using two different methods which yield consistent values. Our best estimate of n_e = (0.067+-0.015)/cm^3 is about 100 times the free electron density of the ISM in the vicinity of 47 Tucanae, and the ionized gas is probably the dominant component of the intracluster medium.

Affiliated with

Also associated with

No associations

Rating

Detection of ionized gas in the globular cluster 47 Tucanae 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 Detection of ionized gas in the globular cluster 47 Tucanae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of ionized gas in the globular cluster 47 Tucanae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-537556