Catalog of SEDs of the Late Stages Stars ver. 2

© Tatarnikov A.M., Zheltoukhov S.G., Malik E.D., Belyakova A. A., SAI of MSU, 2023

An online catalog of late stages stars whose spectra in the 2.38-45 μm wavelength range were obtained by the Infrared Space Observatory (ISO). The catalog is based on the "An atlas of fully processed spectra from the SWS - AOT1" The catalog includes stars of the following types according to SIMBAD Astronomical Database: AGB, post-AGB, PPN и PN, Long Period Variable (LPV), mira, carbon star, red supergiant.

SED of the objects were compiled from ISO SWS spectra, ISO LWS spectra and Spitzer CASIS spectra (where available) and photometry data from IRAS, MSX, AKARI, WISE, GAIA, etc. catalogs. We used modified sydbys code to work with data sources. The SEDs thus obtained are available in the columns Phot Pic (figure) and Phot Dat (TXT table).

For all objects, we manually drew a smoothed SED (see “SED Pic” and “SED dat” columns), from which the bolometric flux was calculated (“Flux” column). To calculate the luminosities of the stars, we used data from the Gaia EDR3 I/352 (“Distance” column). If no data were available there, the distance or parallax from the SIMBAD Astronomical Database was taken. If the distance was still unknown, the table contains “nan”, and D=1000 pc was used for luminosity calculations. The luminosity was calculated taking into account the interstellar absorption (column “E(g-r)”) from the catalog argonaut.skymaps.info.

For all objects, we examined the degree of agreement of the ISO SWS spectra with the photometric observations. A good match is indicated by a "+" sign in the “SED pic” column. These spectra can be used without additional calibration. For the data with a "-" sign (-SPic), we made an attempt to correct the SED by renormalizing individual fragments of the spectrum. The description of the procedure is here.

So, for each object, a file with our collected photometry, a file with the SED (corrected and uncorrected for interstellar absorption), a JSON containing all defined and collected data, and an archive with all ISO and Spitzer data and spectra (if available) are available.

For questions about the catalog, write to andrew[]sai.msu.ru. This work was supported by the RSF grant N23-22-00182.

Download the catalog in machine-readable form at the links:

CSV file

DAT file