EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 615 (July 2018) A&A, 615 (2018) A85 Full HTML
Free Access

Table 2

Quadratic fit to the disk area coverage.

Coefficients Sunspot Faculae
a (−1.6 ± 6) × 10−5 (16.1 ± 3) × 10−4
b (9.1 ± 1) × 10−6 (180 ± 5) × 10−6
c (21 ± 4) × 10−9 (−23 ± 2) × 10−8
RMS 9.3 × 10−7 1.4 × 10−5

Notes. Listed are the regression coefficients, their 1σ uncertainty range, and chi-squared statistic for polynomial fit: y = a + b*SSN + c*SSN2, where y is the filling factor and SSN the Sunspot number.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.