2023A&A...674A..21M


Query : 2023A&A...674A..21M

2023A&A...674A..21M - Astronomy and Astrophysics, volume 674A, 21 (2023/6-1)

Gaia Data Release 3 Validating the classification of variable young stellar object candidates.

MARTON G., ABRAHAM P., RIMOLDINI L., AUDARD M., KUN M., NAGY Z., KOSPAL A., SZABADOS L., HOLL B., GAVRAS P., MOWLAVI N., NIENARTOWICZ K., JEVARDAT DE FOMBELLE G., LECOEUR-TAIBI I., KARBEVSKA L., GARCIA LARIO P. and EYER L.

Abstract (from CDS):

Context. The Gaia third Data Release (DR3) presents the first catalogue of full-sky variable young stellar object (YSO) candidates observed by the Gaia space telescope during the initial 34 months of science operations.
Aims. Numerous types of variable stars were classified using photometric data collected by Gaia. One of the new classes presented in the Gaia DR3 is the class of YSOs showing brightness variability. We analysed 79 375 sources classified as YSO candidates in order to validate their young nature and investigate the completeness and purity of the sample.
Methods. We cross-matched the Gaia DR3 YSO sample with numerous catalogues from the literature, including YSO catalogues based on optical and infrared data, as well as catalogues of extragalactic sources and Galactic variable stars. YSO catalogues were used to quantify the completeness of the Gaia DR3 YSO sample, while others were inspected to calculate the contamination.
Results. Among the 79 375 potential YSO candidates published in the Gaia DR3 variable star catalogue, the majority of these objects are distributed along the line of sight of well-known star forming regions and the Galactic midplane. We find that the upper limit of contamination is 26.7%, depending on the external catalogue used for the estimation, but find an average of ∼10% in general, while the completeness is at the percent level, taking into account that the Gaia DR3 YSO sample is based on sources that showed significant variability during the data-collection period. The number of sources in our sample that had not previously been catalogued as YSO candidates is ∼40 000 objects.

Abstract Copyright: © The Authors 2023

Journal keyword(s): catalogs - stars: early-type - Galaxy: stellar content - stars: formation - stars: pre-main sequence - stars: statistics

VizieR on-line data: <Available at CDS (J/A+A/674/A21): kyso.dat>

Status at CDS : Tables of objects will be appraised for possible ingestion in SIMBAD.

Simbad objects: 39

goto Full paper

goto View the references in ADS

Number of rows : 39
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 SSTCOB4 J00041365+6724455 RS* 00 04 13.6284752965 +67 24 45.567275101           ~ 4 0
2 * alf UMi cC* 02 31 49.09456 +89 15 50.7923 3.00 2.62 2.02 1.53 1.22 F8Ib 674 2
3 2MASS J02343462+6121536 Y*? 02 34 34.6280256240 +61 21 53.683231536           ~ 2 0
4 NAME Perseus Cloud SFR 03 35.0 +31 13           ~ 1377 0
5 Gaia 22afv Y*? 04 03 38.8528161120 +32 15 50.122984032           ~ 2 0
6 NAME California Molecular Cloud MoC 04 10.0 +39 00           ~ 157 1
7 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4444 0
8 2MASS J05342893-0508384 Y*O 05 34 28.9417600368 -05 08 38.406637824     19.86   16.413 ~ 14 0
9 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2337 0
10 NAME lam Ori Cloud Cld 05 35 06 +09 56.0           ~ 64 0
11 NAME Ori A MoC 05 38 -07.1           ~ 3022 0
12 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1382 0
13 NAME Mon R2 HII 06 07 47.58 -06 22 42.6           ~ 746 2
14 Ass Gem OB 1 As* 06 09.8 +21 35           ~ 192 0
15 NAME Crossbones MoC 06 26 -10.           ~ 13 0
16 NGC 2244 OpC 06 32 10.8 +04 54 50           ~ 638 1
17 NAME Rosette Molecular Cloud MoC 06 34.7 +04 02           ~ 263 0
18 NAME Mon I MoC 06 35 +10.1           ~ 257 0
19 NAME Maddalena Cloud MoC 06 48.1 -03 52           ~ 97 0
20 Ass CMa OB 1 As* 07 07.0 -10 28           ~ 151 0
21 NAME Vela XYZ Rad 08 34.0 -45 50           ~ 1235 2
22 NAME UMa Region reg 11 00 +50.0           ~ 328 0
23 NAME TW Hya Association As* 11 01.9 -34 42           ~ 950 0
24 NAME Chamaeleon Region SFR 11 55 -78.0           ~ 811 0
25 V* RS CVn RS* 13 10 36.9077924448 +35 56 05.584994412 8.57 8.51 7.93 7.7   F6IV+G8IV 730 0
26 NAME Lupus Complex SFR 16 03 -38.1           ~ 724 0
27 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1336 1
28 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3647 1
29 GUM 53 HII 16 40 00.1 -48 51 45           ~ 95 1
30 LDN 1746 DNe 17 11.3 -27 22           ~ 139 0
31 NAME Aquila South Cloud MoC 18 29 42.72 -02 46 48.0           ~ 19 0
32 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 1108 2
33 NAME Corona Australis Cloud MoC 19 01 51 -36 58.9           ~ 491 0
34 V* RR Lyr RR* 19 25 27.9129605304 +42 47 03.693258204   7.36   7.6   kA3hF0 930 0
35 NAME Cyg X Cld 20 30 04.7973633 +40 51 36.002197           ~ 856 1
36 2MASS J20570334+4341444 Or* 20 57 03.3520408080 +43 41 44.546433036   19.751 18.106   15.533 M0.8 7 0
37 V* V733 Cep Or* 22 53 33.2578965000 +62 32 23.629387452     18.57   14.63 ~ 44 0
38 NAME Camelopardalis Region reg ~ ~           ~ 10 0
39 NAME Galactic Bulge reg ~ ~           ~ 4332 0

To bookmark this query, right click on this link: simbad:objects in 2023A&A...674A..21M and select 'bookmark this link' or equivalent in the popup menu