Gaia Data Release 3
Open Access

Table 5.

Number of objects in the different samples from the G19 catalogue.

Source type Großschedl Gaia DR3 in var. Gaia DR3 Gaia DR3 YSO Gaia DR3 YSO Gaia DR3 YSO
et al. class. YSO % of G19 % of Gaia DR3 % of var. class.
Total 3117 2339 672 621 19.9 26.5 92.4
Class 0 60 0 0 0 0.0 0.0 0.0
Class I 128 9 1 1 0.8 11.1 11.1
Flat spectrum 185 91 20 13 7.0 14.3 65.0
Class II/III PMS 2012 1685 503 473 23.5 28.1 94.0
with disc
Anemic disc 394 332 63 57 14.5 17.2 90.5
Transition disc 201 195 83 77 38.3 39.5 92.8
Galaxy 39 7 1 0 0.0 0.0 0.0
Nebulosity, fuzzy 45 2 0 0 0.0 0.0 0.0
contamination
MS star 4 2 0 0 0.0 0.0 0.0
Class III w/o 3 3 0 0 0.0 0.0 0.0
IR excess
Image artefact 5 0 0 0 0.0 0.0 0.0
Galaxy candidate 20 4 0 0 0.0 0.0 0.0
Uncertain YSO 21 9 0 0 0.0 0.0 0.0
candidate

Notes. The columns list: (1) the source type as reported in G19; (2) the number of sources reported by G19; (3) the number of sources from the G19 catalogue also present in Gaia DR3; (4) the number of sources participating in the variability classification; (5) the number of sources classified as YSOs during variability classification; (6) the fraction of G19 sources classified as YSO, i.e. Col. 5 divided by Col. 2; (7) the fraction of Gaia DR3 sources classified as YSO, i.e. Col. 5 divided by Col. 3; (8) the fraction of those sources participating in the variability classification and classified as YSO; i.e. Col. 5 divided by Col. 4.

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