Atlas of the Solar Intensity Spectrum and its Center-to-Limb Variation

<p>The atlas of the Third Solar Spectrum (SS3) represents the ratio between the intensity spectrum at different distances from the solar limb and the intensity spectrum at disk center (&micro; = 1.0), both in units of the intensity of the local continuum level.&nbsp; The observed positions of the measurements cover 9 different &micro; values along the solar axis ranging from 0.1 to 0.9 in step of 0.1, where&nbsp; &micro;=cos&theta; is the cosine&nbsp; of the heliocentric angle &theta;. The current version of the atlas covers the range 4384- 6610 &Aring;.</p> <p>In the PDF file, the first plot represents the spectrum at the center of the solar disk, recorded at IRSOL. The next 9 plots represent the 3rd solar spectrum for &micro;=0.1, &micro;=0.2, &micro;=0.3, &hellip;, &micro;=0.9</p> <p>Columns of the CSV file:</p> <table> <tbody> <tr> <td><strong>WL:</strong></td> <td>Wavelength, 4384-6610 &Aring;</td> </tr> <tr> <td><strong>IC:</strong></td> <td>I/I_c at disc center</td> </tr> <tr> <td><strong>RMU01:</strong></td> <td>limb / disk-center ratio at &micro;=0.1</td> </tr> <tr> <td><strong>RMU02:</strong></td> <td>limb / disk-center ratio at &micro;=0.2</td> </tr> <tr> <td><strong>&hellip;</strong></td> <td>&hellip;</td> </tr> <tr> <td><strong>RMU09:</strong></td> <td>limb / disk-center ratio at &micro;=0.9</td> </tr> </tbody> </table>