Optical spectroscopy toward Orion B fields

DOI

We present results from high-resolution optical spectra toward 66 young stars in the Orion B molecular cloud to study their kinematics and other properties. Observations of the H{alpha} and Li I 6707{AA} lines are used to check membership and accretion properties. While the stellar radial velocities of NGC 2068 and L1622 are in good agreement with that of the molecular gas, many of the stars in NGC 2024 show a considerable offset. This could be a signature of either the expansion of the cluster, the high degree of the ejection of the stars from the cluster through dynamical interaction, or the acceleration of the gas due to stellar feedback.

Cone search capability for table J/ApJ/844/138/table1 (Dates and configurations of the M2FS observations)

Cone search capability for table J/ApJ/844/138/table2 (Sources that were surveyed for the presence of LiI)

Identifier
DOI http://doi.org/10.26093/cds/vizier.18440138
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/844/138
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/844/138
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/844/138
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/844/138
Provenance
Creator Kounkel M.; Hartmann L.; Mateo M.; Bailey III J.I.
Publisher CDS
Publication Year 2018
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; Exoplanet Astronomy; Interdisciplinary Astronomy; Interstellar medium; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy