The Breakthrough Listen Exotica Catalog: Supplementary Materials

Abstract

Supplementary information for the Breakthrough Listen Exotica Catalog, including the fully-referenced appendices of the paper, detailed notes on the Catalog's entries, and CSV files listing properties of the sources and references for the objects. Breakthrough Listen is a comprehensive ten year program in the Search for Extraterrestrial Intelligence (SETI) sponsored by the Breakthrough Prize Foundation that will observe a million stars in the Milky Way and over a hundred nearby galaxies. The Exotica Catalog represents our attempt to fully cover the range of possible astrophysical environments, intended to include "one of everything" known with over 800 distinct objects divided into four samples. With the Exotica Catalog, we aim to address whether extraterrestrial intelligences could be very different from us and whether natural astrophysical phenomena may produce signals that mimic artificial signals. The Prototype sample contains a representative example of each type of astrophysical object we identified; the Superlative sample includes objects with record-breaking properties; the Anomaly sample includes examples of objects that remain mysterious or unexplained; and the Control sample includes sky locations we do not expect to be special as a comparison. These are the supplementary materials of version 20E of the Catalog, current as of 2021 April 28. This supplementary material includes: * Exotica_FullAppendices_20E.pdf: a file containing the full appendices to the paper describing the Catalog, with all references for Tables and Figures provided. * BL_Exotica_20E_Notes.pdf: Detailed notes for the entries in all four samples of the Exotica Catalog, organized according to sample. The notes include a brief description of each entry, reasons for the given target's selection, potential caveats for the selection and occasionally alternative choices, with references given. * BLExoticaCatalog_20E_SolSys.csv: a CSV containing all the Solar System objects, excluding the unassigned/opportunistic Earth satellites in version 20E of the Catalog.<br> Comma-separated fields are: ID, plaintext name, name of primary body, ID of primary body, semimajor axis (AU), eccentricity, inclination (degrees), semimajor axis around Sun (AU), Minimum Orbital Intersection Distance (AU), mass (M_earth), Solar insolation at semimajor axis (Earth = 1), radius (km), maximum angular size (arcsec) * BLExoticaCatalog_20E_Sidereal.csv: a CSV file containing all sidereal (non-Solar System) targets in version 20E of the Catalog.<br> Comma-separated fields are: ID, plaintext name, name recognized by Simbad, RA (decimal), Dec (decimal), redshift, luminosity distance (pc), magnification after graviational lensing, effective luminosity distance after gravitational lensing (pc), proper motion in RA (milliarcsec/yr), proper motion in declination (milliarcsec/yr), angular size * BLExoticaCatalog_20E_TableRefs.csv: a CSV file containing all bibcodes for ADS-linked references cited in full appendices (version 20E) for each distinct source. When a source has multiple entries in a Table with references, these are merged. When there are several references cited for a table or figure for a given source, they are separated by spaces.<br> Comma-separated fields are: I ID, plaintext name, Solar System flag, samples [P = prototype; S = superlative; A = non-SETI anomaly; E = SETI anomaly; C = control], phylum list, Table A1 bibcodes (Prototypes), Table B1 bibcodes (Superlatives), Table C1 bibcodes (Anomaly, Non-SETI), Table C2 bibcodes (Anomaly, SETI), Table D1 bibcodes (Control, original), Table D1 bibcodes (Control, current explanation), Figure 4 Sidereal (Planet M_p-insolation) bibcodes, Figure 5a (Stellar CMD) bibcodes, Figure 5b (Stellar HR) bibcodes, Figure 6a (Galaxy CMD) bibcodes, Figure 6b (Galaxy M*-SFR) bibcodes, Table E1 (General Solar System sources) bibcodes, Table E2 (General sidereal sources) bibcodes These files are also available at http://seti.berkeley.edu/exotica/ .