VOYAGER UVS Lyman-alpha reanalysis: 1993-2011

Details VOYAGER UVS Lyman-alpha reanalysis: 1993-2011 VOYAGER UVS Lyman-alpha reanalysis: 1993-2011

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsh11a1915l&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SH11A-1915

Physics

[2114] Interplanetary Physics / Energetic Particles, [2126] Interplanetary Physics / Heliosphere/Interstellar Medium Interactions, [2144] Interplanetary Physics / Interstellar Gas

Scientific paper

We present an updated analysis of Voyager UVS Lyman-alpha data recorded since 1993, and discuss three aspects. i) A new reduction of the data set has been performed. It reveals that the V1 and V2 UVS detectors have recorded an increasing background that must be due to ambient energetic particles in the MeV range. For V1, measurements are available up to present time. After a series of fluctuations corresponding to the termination shock approach and crossing, the background is now increasing smoothly again. Although the energy range influencing UVS is uncertain, those new measurements may complement other particle data. ii) The Ly-alpha signal is compared to radiative transfer calculations applied to a self-consistent two-component heliospheric model, and shown to be in excellent agreement with the expected sky pattern. iii) A new method of treatment adapted to low galactic latitudes and the presence of dust-scattered galactic UV background has been developed, in order to facilitate disentangling the major heliospheric contribution and a galactic contribution at Lyman-alpha.

Affiliated with

Also associated with

No associations

Rating

VOYAGER UVS Lyman-alpha reanalysis: 1993-2011 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 VOYAGER UVS Lyman-alpha reanalysis: 1993-2011, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and VOYAGER UVS Lyman-alpha reanalysis: 1993-2011 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-876163