Physics
Scientific paper
Jul 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996hst..prop.6451s&link_type=abstract
HST Proposal ID #6451
Physics
Hst Proposal Id #6451 Interstellar Medium
Scientific paper
We propose to use 6 HST orbits to obtain GHRS 15 km/sresolution G160M integrations of interstellar absorptiontoward the bright Seyfert 1 galaxy ESO 141-55 in the highlyionized gas lines of N V, C IV, and Si IV. The HSTmeasurements will be combined with observations of O VIabsorption from the ORFEUS-II mission scheduled for November1996. We will use the data to study the distribution andphysical conditions in Galactic halo gas along the sight lineto ESO 141-55 (l = 338.2 deg, b = -26.7 deg). We areparticularly interested in checking the predictions of varioustheories for the origin of high temperature gas in theGalactic halo, including theories for the non-equilibriumcooling of hot gas in a Galactic fountain. Galactic rotationalong the sight line should produce an extension of the highionization lines to velocities as negative as -100 km/s. Astudy of the relative behavior of the absorption line profileswill provide information about the relative Galactic scaleheights and distributions of the four high ions in theGalactic halo.
No associations
LandOfFree
HST and Orfeus-II Observations of Highly Ionized Galactic Halo Gas Towards ESO 141-55 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 HST and Orfeus-II Observations of Highly Ionized Galactic Halo Gas Towards ESO 141-55, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and HST and Orfeus-II Observations of Highly Ionized Galactic Halo Gas Towards ESO 141-55 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1117668