Mathematics – Logic
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...208.4102s&link_type=abstract
American Astronomical Society Meeting 208, #41.02; Bulletin of the American Astronomical Society, Vol. 38, p.115
Mathematics
Logic
Scientific paper
The halo of the Milky Way is permeated with large amounts of multiphase gas, detected in both high ions (OVI, OVII, CIV, SiIV, NV) and low ions indicative of cooler gas (HI, H2, CII/III, SiII/III, SII). This gas is probably heated by supernova and superbubble outflows from the Galactic disk and perhaps by conductive or turbulent interfaces with million-degree gas. This "warm-hot medium" may also be associated with processes of gravitational accretion from the intergalactic medium (IGM) and virializiation of infalling dark-matter clumps. Distant AGN (quasars, Seyferts, blazars) provide suitable background sources for HST, FUSE, and Chandra spectroscopy, allowing astronomers to study high-latitude halo gas in ultraviolet and X-ray resonance lines. Galactic High Velocity Clouds (HVCs) also provide probes of the metallicity, kinematics, and physical conditions of gas in the Galactic fountain and IGM. I will review the current state of UV and X-ray observations of halo gas and discuss the implications for Galaxy assembly, the cosmological baryon census, and chemical evolution. This work has been supported by NASA through data analysis grants (FUSE and HST) and NASA Theory Programs.
No associations
LandOfFree
Physical Properties Of Warm-hot Gas In The Galactic Halo 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 Physical Properties Of Warm-hot Gas In The Galactic Halo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Physical Properties Of Warm-hot Gas In The Galactic Halo will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1856511