{"title":"Gaia (DR3)-based astronomical analysis of the seven unstudied open star clusters","authors":"W.A. Badawy , A.L. Tadross , Y.H.M. Hendy , M.N. Ismail , A. Mouner","doi":"10.1016/j.newast.2024.102196","DOIUrl":null,"url":null,"abstract":"<div><p>The seven open star clusters FSR 0717, FSR 1698, Loden 2313, Ruprecht 49, Majaess 61, Mayer 2, and Teutsch 48, which are located near the Milky Way’s Galactic plane are studied in this article using the Gaia DR3 dataset. The estimated numbers of potential cluster members are 102, 362, 285, 197, 95, 116, 160, and 397, correspondingly. The calculated radius values are 3.10<!--> <span><math><mo>±</mo></math></span> <!--> <!-->0.20, 3.20<!--> <span><math><mo>±</mo></math></span> <!--> <!-->0.30, 5.10<!--> <span><math><mo>±</mo></math></span> <!--> <!--> <!-->0.10, 5.30<!--> <span><math><mo>±</mo></math></span> <!--> <!-->0.20, 4.50<!--> <span><math><mo>±</mo></math></span> <!--> <!-->0.40, 3.50<!--> <span><math><mo>±</mo></math></span> <!--> <!-->0.20, and 5.20<!--> <span><math><mo>±</mo></math></span> <!--> <!-->0.20 arcmin, respectively. The clusters’ log ages of 8.80<!--> <span><math><mo>±</mo></math></span> <!--> <!-->0.15, 7.80<!--> <span><math><mo>±</mo></math></span> <!--> <!-->0.05, 6.95<!--> <span><math><mo>±</mo></math></span> <!--> <!-->0.05, 8.00<!--> <span><math><mo>±</mo></math></span> <!--> <!-->0.10, 8.70<!--> <span><math><mo>±</mo></math></span> <!--> <!-->0.05, 7.95<!--> <span><math><mo>±</mo></math></span> <!--> <!-->0.10, and 8.95<!--> <span><math><mo>±</mo></math></span> <!--> <!-->0.05 yr are determined using solar metallicity isochrones. The distances of 3176.76<!--> <span><math><mo>±</mo></math></span> <!--> <!-->17.30, 2122.76<!--> <span><math><mo>±</mo></math></span> <!--> <!-->14.35, 1157.07<!--> <span><math><mo>±</mo></math></span> <!--> <!-->15.20, 3924.10<!--> <span><math><mo>±</mo></math></span> <!--> <!-->20.10, 2513.21<!--> <span><math><mo>±</mo></math></span> <!--> <!-->9.04, 3364.34<!--> <span><math><mo>±</mo></math></span> <!--> <!-->8.01, and 3505.36<!--> <span><math><mo>±</mo></math></span> <!--> <!-->7.93 pc that were obtained by the isochrone’s best fitting are comparable to the distances determined by inverting median parallaxes. The slopes of the mass function are matched the Salpeter mean value. Total masses are determined to be 128.55<!--> <span><math><mo>±</mo></math></span> <!--> <!-->11, 548.30<!--> <span><math><mo>±</mo></math></span> <!--> <!-->8, 254.57<!--> <span><math><mo>±</mo></math></span> <!--> <!-->7, 194.09<!--> <span><math><mo>±</mo></math></span> <!--> <!-->6, 92.32<!--> <span><math><mo>±</mo></math></span> <!--> <!-->15, 191.50<!--> <span><math><mo>±</mo></math></span> <!--> <!-->12, and 455.62<!--> <span><math><mo>±</mo></math></span> <!--> <!-->10 <span><math><msub><mrow><mi>M</mi></mrow><mrow><mo>⊙</mo></mrow></msub></math></span>, respectively.</p></div>","PeriodicalId":54727,"journal":{"name":"New Astronomy","volume":null,"pages":null},"PeriodicalIF":1.9000,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Astronomy","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1384107624000101","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
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Abstract
The seven open star clusters FSR 0717, FSR 1698, Loden 2313, Ruprecht 49, Majaess 61, Mayer 2, and Teutsch 48, which are located near the Milky Way’s Galactic plane are studied in this article using the Gaia DR3 dataset. The estimated numbers of potential cluster members are 102, 362, 285, 197, 95, 116, 160, and 397, correspondingly. The calculated radius values are 3.10 0.20, 3.20 0.30, 5.10 0.10, 5.30 0.20, 4.50 0.40, 3.50 0.20, and 5.20 0.20 arcmin, respectively. The clusters’ log ages of 8.80 0.15, 7.80 0.05, 6.95 0.05, 8.00 0.10, 8.70 0.05, 7.95 0.10, and 8.95 0.05 yr are determined using solar metallicity isochrones. The distances of 3176.76 17.30, 2122.76 14.35, 1157.07 15.20, 3924.10 20.10, 2513.21 9.04, 3364.34 8.01, and 3505.36 7.93 pc that were obtained by the isochrone’s best fitting are comparable to the distances determined by inverting median parallaxes. The slopes of the mass function are matched the Salpeter mean value. Total masses are determined to be 128.55 11, 548.30 8, 254.57 7, 194.09 6, 92.32 15, 191.50 12, and 455.62 10 , respectively.
期刊介绍：
New Astronomy publishes articles in all fields of astronomy and astrophysics, with a particular focus on computational astronomy: mathematical and astronomy techniques and methodology, simulations, modelling and numerical results and computational techniques in instrumentation.
New Astronomy includes full length research articles and review articles. The journal covers solar, stellar, galactic and extragalactic astronomy and astrophysics. It reports on original research in all wavelength bands, ranging from radio to gamma-ray.
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