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| Query : 2005ApJ...633L..45O |
2005ApJ...633L..45O - Astrophys. J., 633, L45-L47 (2005/November-1)
HST images do not support the presence of three high-velocity, low-mass runaway stars in the core of the Orion Nebula Cluster.
O'DELL C.R., POVEDA A., ALLEN C. and ROBBERTO M.
Abstract (from CDS):
A recent article has employed the determination from ground-based images of high proper motions in the Orion Nebula cluster to argue that JW 349, JW 355, and JW 451 are high-velocity (38, 89, and 69 km/s, respectively) low-mass runaway stars. We report on the measurement of the proper motions of these stars using images made by the Hubble Space Telescope's WFPC2 imager and find that there is no evidence of motions above 6.2 km/s for JW 349 or above 7.9 km/s for JW 355, while the motion of 5.5 km/s for JW 451 is only slightly larger than the measurement uncertainty of 3.9 km/s. We conclude that there is no observational support for these stars being high-velocity runaway stars.
Abstract Copyright: ∼
Journal keyword(s): Astrometry - Stars: Kinematics - Stars: Pre-Main-Sequence
Simbad objects: 10
| Number of rows : 10 |
| 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 | NAME Orion Nebula Cluster | OpC | 05 35.0 | -05 29 | ~ | 2334 | 0 | |||||
| 2 | V* V2202 Ori | Or* | 05 35 10.5449428440 | -05 24 16.671011580 | 17.958 | 17.578 | 14.16 | 15.259 | K8-M0 | 42 | 0 | |
| 3 | JW 355 | Y*O | 05 35 10.9042511808 | -05 22 46.378450704 | 16.860 | 15.005 | M2.7e | 38 | 0 | |||
| 4 | NAME Orion-KL | SFR | 05 35 14.16 | -05 22 21.5 | ~ | 2295 | 1 | |||||
| 5 | COUP 658 | Y*O | 05 35 14.7233591568 | -05 23 22.891605324 | 12.2 | 14.105 | M3e | 43 | 0 | |||
| 6 | TCC 32 | Y*O | 05 35 15.5228426424 | -05 23 37.385961360 | 13.821 | ~ | 53 | 1 | ||||
| 7 | [FRM2016] 266 | * | 05 35 16.0009377816 | -05 23 52.972404288 | ~ | 7 | 0 | |||||
| 8 | V* AC Ori | Or* | 05 35 16.0009377816 | -05 23 52.972404288 | 14.875 | 12.337 | F5e | 62 | 1 | |||
| 9 | * tet01 Ori C | SB* | 05 35 16.4662967280 | -05 23 22.921811880 | 4.20 | 5.15 | 5.13 | 4.91 | 4.73 | O7Vp | 1406 | 1 |
| 10 | NAME Ori Trapezium | OpC | 05 35 16.5 | -05 23 14 | ~ | 1620 | 1 |
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