FLS Ancillary MMT/Hectospec data accompany the paper, Papovich et al. (2006), AJ, in press, available at: http://arvix.org/abs/astro-ph/0512623. Please see the paper for project and data details. IRSA serves the three primary catalog/table data products from the FLS Ancillary MMT/Hectospec second (v2) data release; spatial searches using Atlas or advanced search queries on catalog columns using Gator.

In order to ingest the released FLS Hectospec catalogs into the IRSA archive, the ASCII tables had to be converted into the IPAC format. These changes were minor, like the header "#" characters were converted to the "\" character; a column header was added to define each column name and datatype above each data column. Atlas uses the catalogs in ASCII form for searching, while Gator uses tables ingested into a database. Since the ASCII versions of the catalogs had column names which did not fit into the field width of the columns, IRSA had to shorten some of the column names in these catalog for use in Atlas. Note that Gator has identical column names as those published/released (except "Z" is called "REDSHIFT" because 'Z' is an IRSA reserved database column name), however, since the database is case-insensitive, Gator search results have column names in lower case. IRSA has created additional browse products, including spectra previews and ASCII spectrum table files for all MMT/Hectospec data. These browse products are accessed in Atlas search results, through additional columns in the FLS MMT/Hectospec Spectroscopic Catalog (fls_v2.mmt_spectra.tbl), described below.

All the data returned from Atlas and Gator searches are listed in tabular form on the results page. This help page explains the format and columns of the catalog metadata tables (standard flat ASCII file in IPAC format).

Below is the key describing each column name found in the three FLS_HECTOSPEC tables. Click on the name of the catalog or scroll down to the table you're interested in. Sky coverage maps for each catalog are also provided below.