Long-baseline interferometric multiplicity survey of the Sco-Cen OB association
-
Altmetric Citations
Rizzuto, Aaron C.; Ireland, Michael; Robertson, James G; Kok, Y; Tuthill, Peter G; Warrington, B A; Haubois, X; Tango, W J; Norris, B; ten Brummelaar, Theo; Kraus, A L; Jacob, A; Laliberte-Houdeville, C
Description
We present the first multiplicity-dedicated long-baseline optical interferometric survey of the Scorpius-Centaurus-Lupus-Crux association. We used the Sydney University Stellar Interferometer to undertake a survey for new companions to 58 Sco-Cen B-type stars and have detected 24 companions at separations ranging from 7 to 130 mas, 14 of which are new detections. Furthermore, we use a Bayesian analysis and all available information in the literature to determine the multiplicity distribution of...[Show more]
dc.contributor.author | Rizzuto, Aaron C. | |
---|---|---|
dc.contributor.author | Ireland, Michael | |
dc.contributor.author | Robertson, James G | |
dc.contributor.author | Kok, Y | |
dc.contributor.author | Tuthill, Peter G | |
dc.contributor.author | Warrington, B A | |
dc.contributor.author | Haubois, X | |
dc.contributor.author | Tango, W J | |
dc.contributor.author | Norris, B | |
dc.contributor.author | ten Brummelaar, Theo | |
dc.contributor.author | Kraus, A L | |
dc.contributor.author | Jacob, A | |
dc.contributor.author | Laliberte-Houdeville, C | |
dc.date.accessioned | 2015-12-10T23:22:10Z | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.uri | http://hdl.handle.net/1885/66426 | |
dc.description.abstract | We present the first multiplicity-dedicated long-baseline optical interferometric survey of the Scorpius-Centaurus-Lupus-Crux association. We used the Sydney University Stellar Interferometer to undertake a survey for new companions to 58 Sco-Cen B-type stars and have detected 24 companions at separations ranging from 7 to 130 mas, 14 of which are new detections. Furthermore, we use a Bayesian analysis and all available information in the literature to determine the multiplicity distribution of the 58 stars in our sample, showingthat the companion frequency is f = 1.35 ± 0.25 and the mass ratio distribution is best described by qγ with γ = -0.46, agreeing with previous Sco-Cen high-mass work and differing significantly from lower mass stars in Tau-Aur. Based on our analysis, we estimate that among young B-type stars in moving groups, up to 23 per cent are apparently single stars.This has strong implications for the understanding of high-mass star formation, which requires angular momentum dispersal through some mechanism such as formation ofmultiple systems. | |
dc.publisher | Blackwell Publishing Ltd | |
dc.rights | Author/s retain copyright | |
dc.source | Monthly Notices of the Royal Astronomical Society | |
dc.title | Long-baseline interferometric multiplicity survey of the Sco-Cen OB association | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 436 | |
dc.date.issued | 2013 | |
local.identifier.absfor | 020104 - Galactic Astronomy | |
local.identifier.absfor | 020110 - Stellar Astronomy and Planetary Systems | |
local.identifier.ariespublication | U3488905xPUB1281 | |
local.type.status | Published Version | |
local.contributor.affiliation | Rizzuto, A C, Macquarie University | |
local.contributor.affiliation | Ireland, Michael, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Robertson, James G, University of Sydney | |
local.contributor.affiliation | Kok, Y, University of Sydney | |
local.contributor.affiliation | Tuthill, Peter G, University of Sydney | |
local.contributor.affiliation | Warrington, B A, Macquarie University | |
local.contributor.affiliation | Haubois, X, University of Sydney | |
local.contributor.affiliation | Tango, W J, University of Sydney | |
local.contributor.affiliation | Norris, B, University of Sydney | |
local.contributor.affiliation | ten Brummelaar, T, Georgia State University | |
local.contributor.affiliation | Kraus, A L, The University of Texas | |
local.contributor.affiliation | Jacob, A, University of Sydney | |
local.contributor.affiliation | Laliberte-Houdeville, C, University of Sydney | |
local.bibliographicCitation.issue | 2 | |
local.bibliographicCitation.startpage | 1694 | |
local.bibliographicCitation.lastpage | 1707 | |
local.identifier.doi | 10.1093/mnras/stt1690 | |
dc.date.updated | 2015-12-10T10:28:56Z | |
local.identifier.scopusID | 2-s2.0-84888045630 | |
local.identifier.thomsonID | 000327461100064 | |
dcterms.accessRights | Open Access | |
Collections | ANU Research Publications |
Download
File | Description | Size | Format | Image |
---|---|---|---|---|
01_Rizzuto_Long-baseline_interferometric_2013.pdf | 735.18 kB | Adobe PDF |
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.
Updated: 17 November 2022/ Responsible Officer: University Librarian/ Page Contact: Library Systems & Web Coordinator