Bess Monthly reports |
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Click on the link below to see the pdf file of each monh
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Click on the link below to download a zip file containing all the pdf reports of the corresponding year
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BeSS report Materiel & Method For each star having a new spectrum loaded in BeSS database for the month, the last h-alpha spectra from BeSS are loaded and displayed for comparison. A visual check is performed to detect any change in the H-alpha profile. Sometimes a copy/paste is needed for subtle evolutions. For each star, which exhibits a change, the thumbnails time series are generated with the following steps. Each spectrum is zoomed on the H-alpha line. Each profile is scaled on the continuum on a region around 6580 angströms. The x-axis is converted into Doppler velocity centered on H-alpha. If too many spectra of the object are available, a shorter period of observation is choosen. All data are processed with Visual Spec, a freeware with specially designed functions to automatically load BeSS spectra and automatize most of the above processing. - Compiled by Valérie Desnoux, amateur and admin of BeSS for spectra validation, Visual Spec author |