1,726,787 research outputs found
4665. Le Rosier des guerres
No full text4665. Le Rosier des guerres. In: Molinier Auguste. Les Sources de l'histoire de France - Des origines aux guerres d'Italie (1494). V. Introduction générale - Les Valois (suite), Louis XI et Charles VIII (1461-1494) Paris : A. Picard et fils, 1904. pp. 23-24
4665. Le Rosier des guerres
No full text4665. Le Rosier des guerres. In: Molinier Auguste. Les Sources de l'histoire de France - Des origines aux guerres d'Italie (1494). V. Introduction générale - Les Valois (suite), Louis XI et Charles VIII (1461-1494) Paris : A. Picard et fils, 1904. pp. 23-24
Rotational Periods and Starspot Activity of Young Solar-Type Dwarfs in the Open Cluster IC 4665
Get PDFWe present the results of a V-band photometric monitoring survey of 15 late-type dwarfs in the young open cluster IC 4665. Low-amplitude periodic light variations are found for 8 stars and ascribed to the modulation by starspots that cover typically a few percent of the stellar disk. Periods range from 0.6 to 3.7 d, translating to equatorial velocities between 13 and 93 km/s. That no period longer than 4 d was detected suggests a relative paucity of extremely slow rotators (V(sub eq) much less than 10 km/s) among late-type dwarfs in IC 4665. The fractional number of slow rotators in IC 4665 is similar to that of Alpha Per cluster, suggesting that IC 4665 is close in age to Alpha Per (approx. 50 Myr)
Rotational Periods and Starspot Activity of Young Solar-Type Dwarfs in the Open Cluster IC 4665
Get PDFWe present the results of a V-band photometric monitoring survey of 15 late-type dwarfs in the young open cluster IC 4665. Low-amplitude periodic light variations are found for 8 stars and ascribed to the modulation by starspots that cover typically a few percent of the stellar disk. Periods range from 0.6 to 3.7d, translating to equatorial velocities between 13 and 93 km.s-1. That no period longer than 4d was detected suggests a relative paucity of extremely slow rotators (Veq \u3c\u3c 10 km.s-1) among late-type dwarfs in IC 4665. The fractional number of slow rotators in IC 4665 is similar to that of Alpha Per cluster, suggesting that IC 4665 is close in age to Alpha Per (~50 Myr)
Linked collectors and determiners for: ' Endless forms most beautiful': taxonomic revision of the planarian Geoplana vaginuloides (Darwin, 1844) and discovery of numerous congeners (Platyhelminthes: Tricladida).
No full textNatural history specimen data linked to collectors and determiners held within, "' Endless forms most beautiful': taxonomic revision of the planarian Geoplana vaginuloides (Darwin, 1844) and discovery of numerous congeners (Platyhelminthes: Tricladida)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/9dd11965-9958-4665-aef8-d4b9d8d458f0">https://bionomia.net/dataset/9dd11965-9958-4665-aef8-d4b9d8d458f0</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/9dd11965-9958-4665-aef8-d4b9d8d458f0">https://gbif.org/dataset/9dd11965-9958-4665-aef8-d4b9d8d458f0</a>. Formatted as a Frictionless Data package
Linked collectors and determiners for: The Pselaphinae (Coleoptera: Staphylinidae) of Madagascar. VI. Description of Ambohitantella banari gen. et sp. n. with notes on Nearticerodes Jeannel, 1954 and Triceratomerus Jeannel, 1960.
No full textNatural history specimen data linked to collectors and determiners held within, "The Pselaphinae (Coleoptera: Staphylinidae) of Madagascar. VI. Description of Ambohitantella banari gen. et sp. n. with notes on Nearticerodes Jeannel, 1954 and Triceratomerus Jeannel, 1960". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/ed7c3f92-5aa1-4665-be45-7dab0e0d7123">https://bionomia.net/dataset/ed7c3f92-5aa1-4665-be45-7dab0e0d7123</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/ed7c3f92-5aa1-4665-be45-7dab0e0d7123">https://gbif.org/dataset/ed7c3f92-5aa1-4665-be45-7dab0e0d7123</a>. Formatted as a Frictionless Data package
A revised age greater than 50 Myr for the young cluster IC 4665
Get PDFIC 4665 is one of only a dozen young open clusters with a ``lithium depletion
boundary" (LDB) age. Using an astrometrically and spectroscopically filtered
sample of cluster members, we show that both the positions of its low mass
stars in Gaia absolute colour-magnitude diagrams and the lithium depletion seen
among its K- and early M-stars are discordant with the reported LDB age of (32
+4/-5) Myr. Re-analysis of archival spectra suggests that the LDB of IC 4665
has not been detected and that the published LDB age should be interpreted as a
lower limit. Empirical comparisons with similar datasets from other young
clusters with better-established LDB ages indicate that IC 4665 is bracketed in
age by the clusters IC 2602 and IC 2391 at (55 +/- 3) Myr.Comment: For publication in MNRAS, accepted versio
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
A revised age greater than 50 Myr for the young cluster IC 4665
Get PDFIC 4665 is one of only a dozen young open clusters with a “lithium depletion boundary” (LDB) age. Using an astrometrically and spectroscopically filtered sample of cluster members, we show that both the positions of its low mass stars in Gaia absolute colour-magnitude diagrams and the lithium depletion seen among its K- and early M-stars are discordant with the reported LDB age of Myr. Re-analysis of archival spectra suggests that the LDB of IC 4665 has not been detected and that the published LDB age should be interpreted as a lower limit. Empirical comparisons with similar datasets from other young clusters with better-established LDB ages indicate that IC 4665 is bracketed in age by the clusters IC 2602 and IC 2391 at 55 ± 3 Myr
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