Herbig Ae/Be X-shooter observations Virtual Observatory Resource

Authors
  1. Fairlamb J.R.
  2. Oudmaijer R.D.
  3. Mendigutia I.
  4. Ilee J.D.,van den Ancker M.E.
  5. Published by
    CDS
Abstract

Herbig Ae/Be stars (HAeBes) span a key mass range that links low- and high-mass stars, and thus provide an ideal window from which to explore their formation. This paper presents Very Large Telescope/X-shooter spectra of 91 HAeBes, the largest spectroscopic study of HAeBe accretion to date. A homogeneous approach to determining stellar parameters is undertaken for the majority of the sample. Measurements of the ultraviolet are modelled within the context of magnetospheric accretion, allowing a direct determination of mass accretion rates. Multiple correlations are observed across the sample between accretion and stellar properties: the youngest and often most massive stars are the strongest accretors, and there is an almost 1:1 relationship between the accretion luminosity and stellar luminosity. Despite these overall trends of increased accretion rates in HAeBes when compared to classical T Tauri stars, we also find noticeable differences in correlations when considering the Herbig Ae and Herbig Be subsets. This, combined with the difficulty in applying a magnetospheric accretion model to some of the Herbig Be stars, could suggest that another form of accretion may be occurring within Herbig Be mass range.

Keywords
  1. Variable stars
  2. Pre-main sequence stars
  3. Spectroscopy
  4. Accretion
Bibliographic source Bibcode
2015MNRAS.453..976F
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/453/976
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/453/976

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/453/976
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/453/976
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/453/976
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/MNRAS/453/976/sample?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/453/976/sample?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/453/976/sample?

History

2016-06-24T12:49:31Z
Resource record created
2016-06-24T12:49:31Z
Created
2017-10-11T05:13:12Z
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