2025PASP..137j4204R


Query : 2025PASP..137j4204R

2025PASP..137j4204R - Publ. Astron. Soc. Pac., 137, part no 10, 4204 (2025/October-0)

Seeking Kinematic Association of Known FU Orionis Stars with Young Clusters in Cygnus.

ROYCHOWDHURY T. and HILLENBRAND L.A.

Abstract (from CDS):

Kinematic studies of young stars and star clusters have increased our understanding of the process of star formation and evolution in the Milky Way. FU Orionis objects are a specific class of young stellar object notable for their extremely high disk-to-star accretion rates. We use parallax and proper motion information from the Gaia astrometric survey to study five known FU Ori stars towards the Cygnus clouds, in the distance range ∼500-900 pc, and seek evidence of their kinematic association with proximal stellar groups or clusters. We develop multiple search criteria within the Gaia data sets to look for nearby stellar aggregates and to reliably isolate their likely member stars. We show that V1057 Cygni and HBC 722 are kinematically consistent with the 3D locations as well as the inferred proper motion fields of the North America Nebula cluster. We show a similar association of V1515 Cygni with NGC 6914 in the Cygnus-X region, and of V2494 Cygni with stars in the dark cloud LDN 1003 and Braid Nebula. Further, we find that V1735 Cygni is consistent in both position and proper motion with the streamer structure of IC 5146, and we trace the streamer's similar proper motions to the main cluster. Color-magnitude diagrams of all identified clusters show the presence of pre-main-sequence populations, strengthening the likelihood of a physical association between the young FU Ori stars and their respective nearby clusters.

Abstract Copyright: © 2025. The Author(s). Published by IOP Publishing Ltd on behalf of the Astronomical Society of the Pacific (ASP).

Journal keyword(s): Astrometry - Star formation - Young star clusters - Young stellar objects - FU Orionis stars - Stellar kinematics

Simbad objects: 25

goto Full paper

goto View the references in ADS

Number of rows : 25
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2514 0
2 * lam Ori ** 05 35 08.27761 +09 56 02.9611 2.45 3.48 3.66 3.72 3.89 O8IIIf+B0.5V 327 0
3 Cl Collinder 69 OpC 05 35 32.1 +09 44 02     2.8     ~ 369 0
4 V* V883 Ori Or* 05 38 18.1018261392 -07 02 26.017707120           F:I: 274 0
5 NAME Orion Molecular Cloud MoC 05 56 -01.8           ~ 1227 1
6 M 8 OpC 18 03 37 -24 23.2           ~ 644 1
7 V* V1515 Cyg Or* 20 23 48.0158573016 +42 12 25.781279076   15.26 13.39 12.03   G0/G2Ib 260 0
8 Cl Dolidze 8 OpC 20 24 27.0 +42 18 06           ~ 26 0
9 NGC 6914 HII 20 25 +42.3           ~ 22 0
10 NAME Cyg X Cld 20 30 04.7973633 +40 51 36.002197           ~ 962 1
11 NAME Cyg Complex reg 20 32 +45.0           ~ 667 0
12 Ass Cyg OB 2 As* 20 33.2 +41 19           ~ 1023 0
13 IC 5070 HII 20 51.0 +44 22           ~ 218 1
14 NGC 6997 OpC 20 56 39.0 +44 37 45     10.0     ~ 54 1
15 V* V2493 Cyg Or* 20 58 17.0280367392 +43 53 43.341681156   19.678 18.023 17.67 15.233 M4.6 139 0
16 V* V2494 Cyg Or* 20 58 21.0933404928 +52 29 27.683055312           ~ 49 0
17 NGC 7000 Cl* 20 58 47 +44 19.8           ~ 427 0
18 EM* LkHA 190 Or* 20 58 53.7335347296 +44 15 28.388727720   14.26 12.33 12.13   F7/G3I/IIe 530 0
19 LDN 1003 DNe 20 59 32 +52 21.7           ~ 26 0
20 NAME Braid Nebula ISM 21 00 25.00 +52 30 15.2           ~ 18 0
21 V* V2495 Cyg Or* 21 00 25.24416 +52 30 16.9452           ~ 22 0
22 LISC 1908 OpC 21 02 13.5 +45 23 11           ~ 13 0
23 Ass Cyg OB 7 As* 21 08 +47.6           ~ 218 0
24 V* V1735 Cyg Or* 21 47 20.6628414360 +47 32 03.857457372           ~ 170 0
25 IC 5146 OpC 21 53 29.3 +47 14 46           ~ 507 2

To bookmark this query, right click on this link: simbad:objects in 2025PASP..137j4204R and select 'bookmark this link' or equivalent in the popup menu