Free Access

Fig. 2


SDSS spectrum of one galaxy (Alfalfa 240255) from the SDSS survey with our best pPXF fit based on the Gauss-Hermite moments overplotted in red. The masked emission regions are shown in blue and the residuals are plotted in green. The S/N is 35 and approximately represents the mean value of the S/N of the galaxies in our sample. The best-fitting parameters are σGH = 120.6kms-1, and and the morphological type is Sab. The best pPXF fit was obtained using the Elodie empirical stellar library, and the quality of the fit is . The redshift of the galaxy is indicated in the lower right part of the figure, although the spectrum of the galaxy is deredshifted.

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.