Facebook Twitter Google+LinkedInPinterestWhatsApp Related Items: Facebook Twitter Google+LinkedInPinterestWhatsApp#Bahamas, January 29, 2018 – Nassau – Minister of Labour, Senator the Hon. Dion Foulkes applauded the National Training Agency (NTA) for efforts that yielded a group of graduates, 30 percent of whom by completion of their studies had already gained employment, and 45 percent were being considered for employment.At the ceremonies at NTA on Thursday evening, January 25, 2018, the Minister said special thanks were to NTA for facilitating the first ever cruise line workforce recruitment exercise with Royal Caribbean Cruise Line that hired 120 Bahamians and has plans to hire 200 Bahamians annually. Minister Foulkes also anticipated NTA Family Island expansion in the near future.A total of 215 students of “Cohort 8” graduated from NTA (National Training Agency) and received their certificates, pins and awards. Four weeks of “soft skills” training followed by 10 weeks of technical skills training (14 weeks total) produced certified individuals in Hospitality, Allied Health, Auto Body, Office Procedures, Microsoft Office/Quickbooks, Customer Service, Retail Business Skills, and Teacher’s Aide.Special Award recipients were: Janet Darling, Menelik Darling, Willisha Penn, Livingston Munroe, Brennika Coleby, Micquelle Rolle, D’Angeria Taylor, Ebonee Turnquest, Kyle Scriven, Dymond Moss, and Niketra Rolle.Cohort 8 recipient of the esteemed ‘Executive Director’s Award’ was Steffon Miller. He began his speech by quoting Malcolm X, saying: “The future belongs to those who prepare today”. He reflected on his experiences at the NTA while highlighting that his favourite memory was a teamwork exercise. Steffon extended special congratulations to his classmates who were trained in Microsoft Office 2013 and all passed the national examination. Mr. Miller also gave special thanks to his teacher, Mrs. Bethel and ended with a reminder that “Together we can make a difference… put God first.”Minister Foulkes congratulated students who completed “competency based training where they gained employments skills that the country needs for a globally competitive work force.” The Minister also highlighted the six hearing-impaired students among the graduates. He undertook to ensure that NTA is open and accessible to all Bahamians, just like it was to these graduates, free of charge.Executive Director of NTA Gadville McDonald said to the graduates, “You have done it. Tonight, you make us proud.” He also shared a personal perspective: “We all can grow, and grow we must. You all have grown.” He ended by assuring the graduates that NTA will be contacting them to applaud them along their journey and inform them of further training programs.By: Sydnei L. Isaacs Photo caption: NTA Graduation, January 25, 2018 – Students, parents, instructors, and officials in attendance. Minister of Labour, Senator the Hon. Dion Foulkes is shown presenting training certificate to Steffon Miller, who was also the recipient of the ‘Executive Director’s Award.’ NTA Executive Director Gadville McDonald is at left.(BIS Photos/Raymond A. Bethel, Sr.)
β Cep stars are massive, non-supergiant variable stars with spectral type O or B, showcasing variations in photometric, radial velocity, and line profile due to low-order pressure and gravity mode pulsations. Observations show that most stars of this class are of early B-type with masses ranging from 8.0 to 17 solar masses, characterized by their relatively high-frequency pulsations (typically between two to seven hours).β Cep stars are perceived as natural laboratories to conduct seismological studies of the interiors of massive stars. Such studies could be crucial in advancing knowledge about the evolution and structure of massive stars. However, given that the list of known β Cep stars is still relatively short, any new detection of a star of this class is of high importance for astronomers.Now, a team of researchers led by Jonathan Labadie-Bartz of University of São Paulo, Brazil, reports the finding of dozens of new stars of this type. The detection was made as part of the KELT exoplanet survey. As a result, the astronomers identified 113 β Cep stars, and 86 objects of this sample turned out to be new discoveries.”We conducted the search by performing a frequency analysis on the optical light curves of known O- and B-type stars with data from the KELT exoplanet survey,” the paper reads.As noted in the paper, the team’s primary goal was to conduct a periodicity analysis of light curves from the KELT survey for O- and B-type stars. Besides the detection of 86 new β Cep pulsators, the astronomers also identified a further number of 96 stars as β Cep candidates. This group likely contains a mix of genuine β Cep stars, plus other O-type and B-type variable stars.On the list of 113 β Cep stars observed by Labadie-Bartz’s team are five new eclipsing binaries and 22 stars with equal frequency spacings, which could be indicative of a rotational splitting of non-radial pulsation modes. Moreover, the average number of pulsation modes detected per star in the sample turned out to be 3.14. This value is higher when compared to other studies reporting new β Cep stars. In addition, the researchers found unusual light curve shapes for some of the identified β Cep stars that are difficult to explain at the moment. Therefore, the scientists propose to perform time-resolved spectroscopy of these stars in order to unveil their true nature.In concluding remarks, the authors of the paper underlined the significance of their discovery, noting that it means a 70 percent increase over the currently known sample of galactic β Cep stars. They added that the newly found stars, together with β Cep stars identified by previous studies, will be a target for observations with NASA’s Transiting Exoplanet Survey Satellite (TESS), which could shed more light on the structure and evolution of massive stars in general.”The high-quality TESS light curves will then be used to perform asteroseismic studies on this population, which will reveal valuable information about the interior structure and evolution of massive stars,” the researchers concluded. Frequency spectrum of the Beta Cephei star TIC 295435513 computed from KELT (top) and TESS (middle) data. Credit: Labadie-Bartz et al., 2019. Explore further Astronomers detect new massive stars in the young cluster VVV CL074 This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. More information: New Beta Cephei stars with KELT, arXiv:1907.11666 [astro-ph.SR] arxiv.org/abs/1907.11666 Citation: Astronomers identify dozens of new Beta Cephei stars (2019, August 7) retrieved 18 August 2019 from https://phys.org/news/2019-08-astronomers-dozens-beta-cephei-stars.html © 2019 Science X Network Using the Kilodegree Extremely Little Telescope (KELT), astronomers have detected 86 new Beta Cephei (β Cep) stars in the Milky Way galaxy. The discovery, detailed in a paper published July 26 on the arXiv pre-print repository, greatly improves the number of galactic β Cep stars known to date.