Showing papers on "Trojan published in 1979"
TL;DR: In this paper, the authors take the point of view that the present, tightly bound population has secularly evolved through some mechanism from less to more tightly bound orbit configurations, such as changes in the Jovian mass or semimajor axis during planetary formation, collisional interactions with external, asteroidal material, and cometary outgassing.
56 citations
01 Jan 1979
TL;DR: Sixty percent of the sampled objects in the Hilda, Trojan and outer Jovian satellite locations belong to C-type and another 30% belong to RD-type (reddish and dark), sometimes referred to simply as D-type as mentioned in this paper.
Abstract: Sixty percent of the sampled objects in the Hilda, Trojan and outer Jovian satellite locations belong to C-type and another 30% belong to a new group called RD-type (reddish and dark), sometimes referred to simply as D-type. Objects in this group have low albedo values between 2 and 4% and steep reflection spectra between 0.7 micron and 0.9 micron. Furthermore, 944 Hidalgo belongs to this group but shows color variation over its surface. Meteoritic minerals with similar optical reflection spectra are discussed. Trojans with sizes down to 15 km in the cloud preceding Jupiter are about 3.5 times more numerous than those in the following cloud. RD-type Trojans appear more often in the preceding cloud. There is a resemblance of spectrum, albedo and phase relation among the majority of Trojans and the outer Jovian satellites.
31 citations
TL;DR: In the long section of anapaests with which they make their entry, the old men of Argos methodically deliver three essential messages to the audience:40−71.72−82.83−103.
Abstract: In the long section of anapaests with which they make their entry, the old men of Argos methodically deliver three essential messages to the audience:40–71. It is the tenth year of the Trojan War.72–82. We are men who were too old to go and fight in it.83–103. Some new situation seems to be indicated by the fact that Clytemnestra is organizing sacrifices throughout the town.
22 citations
TL;DR: In this paper, the perturbations in the eccentricity and the perihelion longitude of Trojan asteroids were investigated by using the equations of Jupiter's main perturbation in eccentricity.
Abstract: The problem is investigated by using the equations of Jupiter's main perturbations in the eccentricity and in the perihelion longitude of Trojan asteroids. The limits and the period of the variation of the eccentricity and of the perihelion longitude are calculated for 30 Trojans. The perihelion is shown to circulate in 20 cases and to librate for 10 asteroids.
17 citations
TL;DR: Statius' Achilleid as discussed by the authors is a more varied and charming work than readers of the The baid could ever have imagined, and is perhaps the most attractive approach to this highly imitative and professional poet.
Abstract: Statius' last, unfinished poem, the Achilleid, is a more varied and charming work than readers of the The baid could ever have imagined, and is perhaps the most attractive approach to this highly imitative and professional poet. It is generally agreed that both Statius' diction and his narrative form are greatly influenced by Virgil and Ovid: but if he considered the Theban poem as his own Aeneid, we might fairly see the Achilleid as more akin to the Metamorphoses; diction and epic devices may remain recognizably Virgilian, but the relaxed tone, the gentle irony and open humour take us into Ovid's world. As an illustration, the brief episode in which Thetis conveys her sleeping son from Thessaly over the sea to Scyros probably draws its original inspiration from Venus' substitution of Cupid for Ascanius in Aeneid 1: Venus' son procures his own arrival, but she spirits away the sleeping Ascanius; ‘at Venus Ascanio placidam per membra quietem/ irrigat et fotum gremio dea tollit in altos/Idaliae lucos’ (Aen. 1. 691–3).
10 citations
01 Jan 1979
TL;DR: The author has constructed a long-periodic solution of the problem of the motion of the Trojan asteroids, treated as the case of 1:1 resonance in the restricted problem of three bodies.
Abstract: In previous publications the author has constructed a long-periodic solution of the problem of the motion of the Trojan asteroids, treated as the case of 1:1 resonance in the restricted problem of three bodies. The recent progress reported here is summarized under three headings: