A Study of Abundances above the Perseus Arm: the HD218915 sightline

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

We present absorption line data for the sightline toward HD218915, an O9.5Iab star at l=108° , b=-6.89° , & d=2.1 kpc that probes material approximately 300 pc away from the mid-plane of the Perseus spiral arm. The E140H STIS data (at 3.5 km s-1 resolution) shows distinct absorption due to S 3, Cl 1, P 2, Mg 2, Mn 2, Ga 2, Ge 2, Cu 2, & Ni 2 at -50 km s-1 resulting from Perseus Arm gas. Data from FUSE add information about Fe 2, Si 2, & Ar 1, allowing us to determine gas and dust phase abundances for wide range of depleted species. Also present along this sightline are two low column density intermediate velocity components at -70 and +42 km s-1, seen in the strongest metal lines. We look for evidence of grain processing by energetic events in the Perseus arm and compare the results with previous determinations of warm and halo cloud depletion patterns. This work is based on data obtained for the Guaranteed Time Team by the NASA-CNES-CSA FUSE mission operated by the Johns Hopkins University. Financial support has been provided by NASA contract NAS5-32985 and STScI Grant GO 07270.02.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A Study of Abundances above the Perseus Arm: the HD218915 sightline 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 A Study of Abundances above the Perseus Arm: the HD218915 sightline, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Study of Abundances above the Perseus Arm: the HD218915 sightline will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1722645

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.