Correlation of solar wind velocity with λ 5303 coronal intensity

✍ Scribed by P. N. Pathak

• Publisher: Springer
• Year: 1971
• Tongue: English
• Weight: 599 KB
• Volume: 20
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00159779

✦ Synopsis

Using solar wind velocity data obtained by Mariner-2 and IMP-1 spacecrafts, an attempt has been made to study its correlation with 25303 coronal intensity. It is shown that the long-lasting regions of enhanced 25303 intensity in the solar corona are well correlated with recurrent streams of solar wind having high velocity. The time-lag between the central meridian passage (CMP) of the coronal features and the detection of the solar wind streams at the spaceclaft is found to be smaller than that implied by a Iadial solar wind. Significant positive correlations for Mariner-2 data are obtained for coronal intensity at heliolatitudes 5 ~ S-10~ with a time-lag of -~ 2 days while for IMP-1 data, high positive correlations are obtained for the southern heliolatitudes (10~176 without any time-lag. It should be noted that the average heliographic latitudes for Mariner-2 and IMP-1 were N 4~ and N 4~ respectively dining the periods covered by the present analysis. The implications of the results are discussed.