IR nebulae around bright massive stars Virtual Observatory Resource

Authors
  1. Bodensteiner J.
  2. Baade D.
  3. Greiner J.
  4. Langer N.
  5. Published by
    CDS
Abstract

Recent studies show that more than 70% of massive stars do not evolve as effectively single stars, but as members of interacting binary systems. The evolution of these stars is thus strongly altered compared to similar but isolated objects. We investigate the occurrence of parsec-scale mid-infrared nebulae around early-type stars. If they exist over a wide range of stellar properties, one possible overarching explanation is non-conservative mass transfer in binary interactions, or stellar mergers. For ~3850 stars (all OBA stars in the Bright Star Catalogue (BSC, Cat. V/50), Be stars, BeXRBs, and Be+sdO systems), we visually inspect WISE 22um images. Based on nebular shape and relative position, we distinguish five categories: offset bow shocks structurally aligned with the stellar space velocity, unaligned offset bow shocks, and centered, unresolved, and not classified nebulae. In the BSC, we find that 28%, 13%, and 0.4% of all O, B, and A stars, respectively, possess associated infrared (IR) nebulae. Additionally, 34/234 Be stars, 4/72 BeXRBs, and 3/17 Be+sdO systems are associated with IR nebulae. Aligned or unaligned bow shocks result from high relative velocities between star and interstellar medium (ISM) that are dominated by the star or the ISM, respectively. About 13% of the centered nebulae could be bow shocks seen head- or tail-on. For the rest, the data disfavor explanations as remains of parental disks, supernova remnants of a previous companion, and dust production in stellar winds. The existence of centered nebulae also at high Galactic latitudes strongly limits the global risk of coincidental alignments with condensations in the ISM. Mass loss during binary evolution seems a viable mechanism for the formation of at least some of these nebulae. In total, about 29% of the IR nebulae (2% of all OBA stars in the BSC) may find their explanation in the context of binary evolution.

Keywords
  1. Early-type stars
  2. Emission line stars
  3. Be stars
  4. Multiple stars
  5. Diffuse molecular clouds
  6. Nebulae
Bibliographic source Bibcode
2018A&A...618A.110B
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/618/A110
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/618/A110
Document Object Identifer DOI
doi:10.26093/cds/vizier.36180110

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/618/A110
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/618/A110
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/618/A110
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/618/A110/tableb2?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/618/A110/tableb2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/618/A110/tableb2?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/618/A110/tableb1?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/618/A110/tableb1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/618/A110/tableb1?

History

2018-10-19T08:55:51Z
Resource record created
2018-10-19T08:55:51Z
Created
2018-11-05T10:52:51Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr