Variable Interstellar Absorption toward HD 219188

Details Variable Interstellar Absorption toward HD 219188 Variable Interstellar Absorption toward HD 219188

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..365...86w&link_type=abstract

SINS - Small Ionized and Neutral Structures in the Diffuse Interstellar Medium ASP Conference Series, Vol. 365, Proceedings of t

Astronomy and Astrophysics

Astronomy

Scientific paper

We discuss the results of continued optical/UV monitoring of the variable intermediate-velocity absorption toward the low halo star HD 219188. Comparisons between HST/STIS echelle spectra obtained in 2001, 2003, and 2004 and HST/GHRS echelle spectra obtained in 1994--1995 indicate that the total N(H) and the (mild) depletions showed no significant changes over that whole period. Both nH and ne, however, increased by factors of 2--4 between 1995 and 2001, then remained roughly constant thereafter. The observed variations thus appear to be due to modest differences in density and/or ionization (and not total column density), over scales of tens of AU.

Affiliated with

Also associated with

No associations

Rating

Variable Interstellar Absorption toward HD 219188 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 Variable Interstellar Absorption toward HD 219188, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable Interstellar Absorption toward HD 219188 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1660714