MCMC samples for GSP from Photometry (gaiadr3.mcmc_samples_gsp_phot)

The table has 193328097 rows, 16 columns.

Description

This is the DataLink table hosting Monte-Carlo Markov Chain (MCMC) samples for the posterior probability distribution of all parameters derived from the General Stellar Parametrizer from Photometry (GSP-Phot, see Section cu8par_apsis_gspphot in the online documentation). 2000 MCMC samples are provided for 1) all sources brighter than G=12, 2) a random subset of 0.1% of the sources fainter than G=12. For all other sources fainter than G=12, the sample size is 100 (the last 100 samples in the MCMC).The table considers the following parameters:

• effective temperature T_eff in K
• monochromatic extinction at 547.7~nm A₀ in mag
• surface gravity log g
• metallicity [M/H]
• G-band extinction in mag
• absolute magnitude M_G in mag
• distance in pc
• G_BP band extinction A_BP in mag
• G_RP band extinction A_RP in mag
• reddening E(G_BP - G_RP) = A_BP - A_RP in mag
• logarithmic posterior probability
• logarithmic likelihood
• stellar radius in R_⊙

Attribution

If you have used Gaia data in your research, please use the following acknowledgement:

This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.

More information can be found on the credit and citation instructions page.

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