The catalog and its development are described in detail in the

following paper: Red Supergiant Candidates for Multimessenger

Monitoring of the Next Galactic Supernova. [Table 2]

Please cite this paper when using the catalog.

​

The parameters of each star are represented by a single line in the CSV file with a detailed column

descriptions below. 

​

Column (1): Alias

Column (2): Spectral type(s)

Column (3): Spectral type references (format is only the last name of first author and year)

Columns (4)-(5): Either the same as reference if the spectral type was derived in that reference or the source

sighted for the spectral type given in the reference and associated number used in tables

Column (6): Adopted mean Spectral type

Columns (7)-(8): Effective temperature and associated errors based on spectral types [K]

Column (9): Cluster or OB association

Column (10): Gaia DR3 source id

Column (11): Gaia DR2 source id

Columns (12)-(32): Values taken from Gaia DR3 detailed column descriptions can be found at the link: Gaia DR3 documentation

• ra: Right ascension [deg]

• ra_error: Standard error of right ascension [mas]

• dec: Declination [deg]

• dec_error: Standard error of declination [mas]

• parallax [mas]

• parallax_error: Standard error of parallax [mas]

• parallax_over_error:

• pm: total proper motion [mas/yr]

• pmra: Proper motion in right ascension direction [mas/year]

• pmra_error: Standard error of proper motion in right ascension direction [mas/year]

• pmdec: Proper motion in declination direction [mas/year]

• pmdec_error: Standard error of proper motion in declination direction [mas/year]

• ruwe: renormalised unit weight error

• phot_g_mean_mag: G-band mean magnitude [mag]

• phot_bp_mean_mag: Integrated BP mean magnitude [mag]

• phot_rp_mean_mag: Integrated RP mean magnitude [mag]

• bp_rp: BP – RP colour [mag]

• bp_g: BP – G colour [mag]

• g_rp: G – RP colour [mag]

• radial_velocity: Radial velocity [km/s]

• radial_velocity_error: Radial velocity error [km/s]

Columns (33)-(35): Values related to Gaia EDR3 distance taken from Bailer-Jones et al. (2021)

• r_med_geo: the median of the geometric distance posterior [pc]

• r_lo_geo: 16th percentile of the geometric distance posterior [pc]

• r_hi_geo: 84th percentile of the geometric distance posterior [pc]

Columns (36)-(38): Values related to Gaia DR2 distance taken from Bailer-Jones et al. (2018)

• r_est_dr2: the point distance estimate [pc]

• r_lo_dr2: the lower bounds of the (approximately) 68% confidence interval [pc]

• r_hi_dr2: the upper bounds of the (approximately) 68% confidence interval [pc]

Columns (39)-(48): Values taken from 2MASS detailed column descriptions can be found at the link: CalTech user guide

• 2mass_id: ID from 2MASS from crossmatch found between 2MASS and Gaia DR3

• 2mass_id_dr2: ID from 2MASS from crossmatch found between 2MASS and Gaia DR2

• j_m: 2MASS J mag [mag]

• j_msigcom: Combined, or total photometric uncertainty for the default J-band magnitude [mag]

• h_m: 2MASS H mag [mag]

• h_msigcom: Combined, or total photometric uncertainty for the default J-band magnitude [mag]

• k_m: 2MASS K_s mag [mag]

• k_msigcom: Combined, or total photometric uncertainty for the default J-band magnitude [mag]

• acatalog_identifier_optical_source: catalog identifier of an optical source from either the Tycho 2 or USNO-A2.0 catalog (‘0’ = no optical source, ‘T’ = Tycho 2 source, ‘U’ = USNO-A2.9 source)

• b_m_opt: Blue magnitude of the associated optical source [mag]

• vr_m_opt: Visual or red magnitude of the associated optical source [mag]

Columns (49)-(50): Extinction in the K band and associated error [mag]

Columns (51)-(52): Bolometric correction for 𝐾𝑠 band and associated error [mag]

Columns (53)-(55): Distance module and associated upper and lower errors [mag]

Column (56): Extinction in the V band [mag]

Columns (57)-(58): Intrinsic 𝐾𝑠 mag and associated error [mag]

Columns (59)-(61): Bolometric magnitude and associated upper and lower errors [mag]

Column (62): Log of luminosity in terms of solar luminosity

Column (63): Method for collection (Compilation-based, Gaia-Based, within error bars, or Close star addendum)