SIMBAD references

2021MNRAS.504.2968P - Mon. Not. R. Astron. Soc., 504, 2968-2982 (2021/June-3)

The Alma catalogue of OB stars - II. A cross-match with Gaia DR2 and an updated map of the solar neighbourhood.


Abstract (from CDS):

We cross-match the Alma catalogue of OB stars with Gaia DR2 astrometry and photometry as a first step towards producing a clean sample of massive stars in the solar neighbourhood with a high degree of completeness. We analyse the resulting colour-absolute magnitude diagram to divide our sample into categories and compare extinction estimates from two sources, finding problems with both of them. The distances obtained with three different priors are found to have few differences among them, indicating that Gaia DR2 distances are robust. An analysis of the 3D distribution of massive stars in the solar neighbourhood is presented. We show that a kinematically distinct structure we dub the Cepheus spur extends from the Orion-Cygnus spiral arm towards the Perseus arm and is located above the Galactic mid-plane, likely being related to the recently discovered Radcliffe wave. We propose that this corrugation pattern in the Galactic disc may be responsible for the recent enhanced star formation at its crests and troughs. We also discuss our plans to extend this work in the immediate future.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): stars: massive - catalogues - astrometry - (Galaxy:) solar neighbourhood - Galaxy: structure

Nomenclature: NAME Cepheus Spur N=1.

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 68

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2021MNRAS.504.2968P and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact