1,732,561 research outputs found
Unveiling the binary nature of NGC 2323
No full textContext. As a well-known open cluster, NGC 2323 (also called M50) has been widely investigated for over a hundred years and has always been considered a classical single cluster.
Aims. We studied the binary structure nature of NGC 2323 with Gaia Data Release 3 (DR3).
Methods. We discovered the binary structure of NGC 2323 by the HDBSCAN algorithm based on the astrometric and photometric data from Gaia DR3. Then we employed the PETAR N-body code to investigate its binary structure origin.
Results. We found that NGC 2323 consists of two distinct subclusters (NGC 2323-a and NGC 2323-b) that are still gravitationally bound. They have very close positions (three-dimensional Δpos = 12.3 pc, σΔpos = 3.4 pc) and similar tangential velocities (two-dimensional ΔV = 2.2 km s−1, σΔV = 0.02 km s−1). The best isochrone fitting ages of the two clusters are the same (158 Myr), further proving their possibly common origin. The numerical N-body simulation suggests that the less massive cluster is unlikely to be the cluster tidal tails created by the differential rotation of the Milky Way
Age fixed points in sediment core MD99-2323
No full textData input for the depth/age model program “Bacon” Blaauw, M., Christen, J.A., 2016. Bacon manual- v2.2., 2.2 ed. See doi:10.1594/PANGAEA.936454 for the MD99-2323 age model
NOTES ON A BOAR HUNT (PFS 2323)
No full textAbstract
The seal applied to tablet NN 2458 from the Persepolis Fortification archive, PFS 2323, is a large seal that bears a striking image of a boar hunt, remarkable both for its design and exceptional execution. This article briefly examines the specifics of the scene on PFS 2323 and reviews the glyptic evidence for boar hunts in the Achaemenid period.</jats:p
2323 River Road, Toledo, Ohio [approximately 1920]
No full textTerms associated with the photograph are: telephone poles | bridges | Maumee River | winter | dwellings | Maumee (Ohio) | 2323 River Road (Toledo, Ohio
Retail Buildings: [Roman & Suttles, 2323 Pacific Ave.]
No full textQuality Home Furnishings, featuring Draperies, Furniture and Rugs. Decorative services rendered without obligation. Roman & Suttles, 2323 Pacific Avenue, Stockton, California, Telephone 3-5434https://scholarlycommons.pacific.edu/postcards/2859/thumbnail.jp
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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