Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...266..479l&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 266, no. 1, p. 479-485.
Astronomy and Astrophysics
Astrophysics
189
Absorption Spectra, Interstellar Gas, Solar System, Calcium, Doppler Effect, Solar Wind
Scientific paper
The detection of a local ambient interstellar cloud, in which the sun is embedded, through 3D reconstruction of the velocity vector, is reported. A cloud moving at a heliocentric velocity of 25.7 +/- 0.5 km/s, in the same direction as the solar system interstellar flow, is the best solution to the observations, with excellent agreement in all directions. There is also excellent agreement between the prediction of the best-fit vector, and the observed Doppler-shift recently measured from HST-GHRS UV absorption lines towards Alpha Aur, which lies within the observed region. It is suggested that visible and UV lines both correspond to the same very close gas. It is proposed that the 20 km/s motion of interstellar neutral hydrogen observed inside the solar system is lower than the real relative motion of the local interstellar gas.
Bertin P.
Lallement Rosine
No associations
LandOfFree
Northern-Hemisphere observations of nearby interstellar gas - Possible detection of the local cloud 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 Northern-Hemisphere observations of nearby interstellar gas - Possible detection of the local cloud, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Northern-Hemisphere observations of nearby interstellar gas - Possible detection of the local cloud will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1109798