Ionized Gas in the Smith Cloud

Details Ionized Gas in the Smith Cloud Ionized Gas in the Smith Cloud

2009-01-06

arxiv.org/abs/0901.0712v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

4 pages, 2 figures. To appear in the proceedings of "The Role of Disk-Halo Interaction in Galaxy Evolution: Outflow vs Infall?

Scientific paper

We present WHAM observations of Halpha, [N II], and [S II] in the Smith Cloud. A map of Halpha emission from the cloud shows ionized gas coincident with the brightest H I emission, but nearly-as-bright Halpha in some regions with faint H I. The ionized mass of the cloud is at least as large as the neutral mass, > 10^6 M_sun. Ionized gas in the core of the Smith Cloud has an electron temperature 6000 K < T < 16000 K. The observed ratio [N II] / Halpha = 0.39 \pm 0.09 shows that the cloud has a non-primordial nitrogen abundance, 0.1 - 1 times solar.

Affiliated with

Also associated with

No associations

Rating

Ionized Gas in the Smith Cloud 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 Ionized Gas in the Smith Cloud, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ionized Gas in the Smith Cloud will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-720086