English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

AIMS We plan to identify the members of the Bochum7 association by performingsimultaneous astrometric and spectrophotometric analyses, and estimate itsdistance and evolutionary stage. METHODS. We used our own visual spectroscopicand UBV photometric data of a 30' x 30' region centered at R.A. = 8h44m47.2s,Decl = - 45d58m55.5s. This information enabled us to estimate the spectralclassification and distance of all stars present in the region. The propermotion was analyzed with data of the UCAC5 catalog and was used to identify themembers of this association. We added JHK data from 2MASS and IRAS catalogs tocheck for the presence of infrared (IR) excess stars. RESULTS. We found thatBochum7 is an OB association with at least 27 identified stellar members (l =265.12d, b = -2.0d) at a distance of 5640 pc. Its proper motion ismu(alfa)cos(delta) = -4.92+-0.08 mas/yr, mu(delta) = 3.26+-0.08 mas/yr. Wederived an average heliocentric radial velocity of 35 km/s and were able toconfirm the binary nature of the (ALS 1135) system and detect four new binarystar candidates. Analysis of data for massive Bo 7 star candidates pointstowards a young age (< 3x10^6 years old) for the association, although thepresence of a previous episode of star formation remains to be analyzed.

A search for OB stars in the field of the galactic OB association Bochum 7