Massive stars in the hinterland of the young cluster, Westerlund 2

  title={Massive stars in the hinterland of the young cluster, Westerlund 2},
  author={J E Drew and Ana Herrero and Michael Mohr-Smith and M Mongui{\'o} and Nicholas J. Wright and Thomas Kupfer and Ralf Napiwotzki},
  journal={Monthly Notices of the Royal Astronomical Society},
Accepted for publication in MNRAS, 13 July 2018. 16 pages, plus one-page table in an appendix. 
The study of runaway candidate stars in the 30 Doradus region: Using Gaia DR2 data
Abstract We explore the Gaia DR2 relative proper motions of seven young, massive, OB type runaway candidate stars presented by Platais et al. (2018) in the 30 Doradus (30 Dor) region of the Large
The O star hinterland of the Galactic starburst, NGC 3603
The very bright and compact massive young cluster, NGC 3603, has been cited as an example of a starburst in the Milky Way and compared with the much-studied R136/30 Doradus region in the Large
Unlocking Galactic Wolf–Rayet stars with Gaia DR2 – II. Cluster and association membership
Galactic Wolf-Rayet (WR) star membership of star forming regions can be used to constrain the formation environments of massive stars. Here, we utilise $\textit{Gaia}$ DR2 parallaxes and proper
The Massive Star-Forming Regions Omnibus X-Ray Catalog, Second Installment
We present the second installment of the Massive Star-forming Regions (MSFRs) Omnibus X-ray Catalog (MOXC2), a compilation of X-ray point sources detected in Chandra/ACIS observations of 16 Galactic
The Massive Star-forming Regions Omnibus X-ray Catalog, Third Installment
We offer to the star formation community the third installment of the Massive Star-forming Regions (MSFRs) Omnibus X-ray Catalog (MOXC3), a compilation of X-ray point sources detected in 50 archival
OB Associations and their origins
OB associations are unbound groups of young stars made prominent by their bright OB members, and have long been thought to be the expanded remnants of dense star clusters. They have been important in
Kinematic distinction of the two subpopulations of X-ray pulsars
Context. The population of Be/X-ray binaries shows strong evidence of bimodality, especially in the spin period of neutron stars. Several physical mechanisms may produce this bimodality. The most
Dynamical evolution of star-forming regions: III. Unbound stars and predictions for Gaia
We use $N$-body simulations to probe the early phases of the dynamical evolution of star-forming regions and focus on mass and velocity distributions of unbound stars. In this parameter space study,
Runaway and walkaway stars from the ONC with Gaia DR2
Theory predicts that we should find fast, ejected (runaway) stars of all masses around dense, young star-forming regions. $N$-body simulations show that the number and distribution of these ejected
The Gaia-ESO Survey: asymmetric expansion of the Lagoon Nebula cluster NGC 6530 from GES and Gaia DR2
The combination of precise radial velocities from multi-object spectroscopy and highly accurate proper motions from Gaia DR2 opens up the possibility for detailed 3D kinematic studies of young star


New OB star candidates in the Carina Arm around Westerlund 2 from VPHAS
O and early B stars are at the apex of galactic ecology, but in the Milky Way, only a minority of them may yet have been identied.
The deep OB star population in Carina from the VST Photometric Hα Survey (VPHAS
© The Authors 2016. Published by Oxford University Press on behalf of The Royal Astronomical Society. This is an Open Access article distributed under the terms of the Creative Commons Attribution
New Wolf-Rayet stars in Galactic open clusters - Sher 1 and the giant H II region core Westerlund 2
Two new Galactic Wolf-Rayet stars were found in open clusters: a WN4 star in the O9 cluster Sher 1 and a WN7 star in the O7 cluster Westerlund 2. This confirms a previous trend, namely that fainter,
A clustered origin for isolated massive stars
WEL and IAB gratefully acknowledge support from the ECOGAL project, grant agreement 291227, funded by the European Research Council under ERC-2011-ADG. MR acknowledges funding from the Nadacia SPP
The IACOB spectroscopic database of galactic OB stars
Abstract We present the IACOB spectroscopic database, the largest homogeneous database of high-resolution, high signal-to-noise ratio spectra of Northern Galactic OB-type stars compiled up to date.
The Origin of OB Runaway Stars
This model replicates the key characteristics of OB runaways in the authors' galaxy, and it explains the presence of runaway stars of ≳100 solar masses around young star clusters, such as R136 and Westerlund 2.
A spectroscopic investigation of early-type stars in the young open cluster Westerlund 2
Context. The distance of the very young open cluster Westerlund 2, which contains the very massive binary system WR 20a and is likely associated with a TeV source, has been the subject of much
Two O2 If*/WN6 stars possibly ejected from the massive young Galactic cluster Westerlund 2
In this paper we report the identification of two new Galactic O2If*/WN6 stars (WR20aa and WR20c),ontheoutskirtsofthemassiveyoungstellarclusterWesterlund2.Themorphological similarity between the
Early-type stars in the core of the young open cluster Westerlund 2 ⋆⋆⋆
Aims. The properties of the early-type stars in the core of the Westerlund 2 cluster are examined in order to establish a link bet ween the cluster and the very massive Wolf-Rayet binary WR 20a as
The Distance to the Massive Galactic Cluster Westerlund 2 from a Spectroscopic and HST Photometric Study
We present a spectroscopic and photometric determination of the distance to the young Galactic open cluster Westerlund 2 using WFPC2 imaging from the Hubble Space Telescope (HST) and ground-based