Arches cluster JVLA 6 and 10GHz images

DOI

We present high angular resolution radio observations of the Arches cluster in the Galactic centre, one of the most massive young clusters in the Milky Way. The data were acquired in two epochs and at 6 and 10 GHz with the Karl G. Jansky Very Large Array (JVLA). The rms noise reached is 3-4 times better than previous observations and we have almost doubled the number of known radio stars in the cluster. Nine of them have spectral indices consistent with thermal emission from ionised stellar winds. One is a confirmed wind colliding binary and two sources are ambiguous cases. Regarding variability, the radio emission appears to be stable on time scales of a few to ten years. Finally, we have showed that the number of radio stars can be used as a tool for constraining the age or mass of a cluster and also its mass function.

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Associated data

Identifier
DOI http://doi.org/10.26093/cds/vizier.36470110
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/A+A/647/A110
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/647/A110
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/647/A110
Related Identifier https://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/647/A110
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/A+A/647/A110
Provenance
Creator Gallego-Calvente A.T.; Schoedel R.; Alberdi A.; Herrero-Illana R.,Najarro F.; Yusef-Zadeh F.; Dong H.; Sanchez-Bermudez J.; Shahzamanian B.,Nogueras-Lara F.; Gallego-Cano E.
Publisher CDS
Publication Year 2021
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Galactic and extragalactic Astronomy; Natural Sciences; Physics; Stellar Astronomy