Physics
Scientific paper
Jul 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994hst..prop.5413c&link_type=abstract
HST Proposal ID #5413
Physics
Hst Proposal Id #5413 Interstellar Medium Local Medium
Scientific paper
It is well established that neutral atoms from the local ISM flow into the solar system forming an interstellar wind, which produces a diffuse sky background emission at 1216 A through resonant scattering of solar H Ly alpha. This wind in principle contains the velocity distribution of the local ISM, plus potentially some modification of the flow at the heliospheric interface and further modification by the solar gravity and radiation pressure near the Sun. Observations of the H Ly alpha emission line profile can reveal the temperature and velocity dispersion of the flow, allowing us to study the local ISM flow and modifications to the wind within the solar system. Recent observations of the He and H flows in the solar system suggest that the He velocity of 26 km/sec is that of the local ISM cloud, and the H velocity of 20 km/sec is due to modification of the H flow by charge exchange at the heliospheric interface. We propose here a study of the H flow by measuring the velocity distribution of the local H flow through high resolution spectra of the H Ly alpha emission line profile along 3 lines of sight in the inner solar system.
No associations
LandOfFree
The Local ISM Flow Within the Heliosphere 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 The Local ISM Flow Within the Heliosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Local ISM Flow Within the Heliosphere will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1255751