NOTE: Most of the High Level Science Products are unavailable while unscheduled maintenance is being performed. They will be incrementally restored over the course of this week. We apologize for any inconvenience.
A team led by Simon Preval have created one of the most complete UV linelists of a white dwarf. Co-adding over 150 spectra from both HST STIS and FUSE, the team was able to identify nearly 950 absorption lines with equivalent widths as small as a few mÅ. They were able to identify every observed feature in the coadded FUSE spectrum, and nearly every feature in the coadded STIS spectrum. In addition to line identification, the team was able to measure abundances for 9 elements (C, N, O, Al, Si, P, S, Fe, Ni).
For full details of the data reduction, line identification, and analysis, we refer the reader to the original paper. At MAST, we provide the complete linelist, as well as the spectra (individual and coadded versions), as a High Level Science Product. The linelist is provided as an ASCII text table, while the spectra are in FITS format, as explained in the Data Format section below. An interactive plotting tool for users to explore these high quality white dwarf spectra is provided as links in the Atlas table below. Note that the HST STIS spectra did not have additional dispersion corrections as suggested by Ayres (2010) applied, but a future release may include versions of the spectra with these corrections.
The FITS headers and data format of the HST HLSP files are summarized in this table (show / hide).
The FITS headers and data format of the FUSE HLSP files are summarized in this table (show / hide).
Linelist ASCII Tables
The columns of the ASCII linelist files are summarized in this table (show / hide).
Use the "plotter" links to visit the interactive plot tool and preview spectra (zoom, etc). Expand the table by clicking on the "Show Individual Spectra Rows" to see any of the spectra that went into the coadds. You can also download files through your browser or download a tarball (~77 MB) containing all of the FITS files and linelist catalogs.
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