2005ApJ...633L..45O


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.18CEST11:59:04

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

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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 - 2021
#notes
1 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2051 1
2 V* V2202 Ori Or* 05 35 10.5449648777 -05 24 16.683409477   17.958 17.578 14.16 15.259 K8-M0 39 0
3 JW 355 Y*O 05 35 10.9049865480 -05 22 46.356841884     16.860   15.005 M2.7e 36 0
4 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2064 1
5 COUP 658 Y*O 05 35 14.7308 -05 23 22.660   12.2     14.105 M3e 39 0
6 2MASS J05351551-0523373 Y*O 05 35 15.5090 -05 23 37.180         13.821 ~ 51 1
7 [FRM2016] 266 * 05 35 16.000 -05 23 52.97           ~ 7 0
8 V* AC Ori Or* 05 35 16.0396400 -05 23 53.063091     14.875   12.337 F5e 60 1
9 * tet01 Ori C ** 05 35 16.4664092288 -05 23 22.897102710 4.20 5.15 5.13 4.91 4.73 O7Vp 1299 1
10 NAME Trapezium Cluster As* 05 35 16.5 -05 23 14           ~ 1505 1

    Equat.    Gal    SGal    Ecl

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2021.04.18-11:59:04

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