Готові списки джерел за темами / Pluto (dwarf planet) – drama

Добірка наукової літератури з теми "Pluto (dwarf planet) – drama"

Автор: Grafiati

Опубліковано: 26 липня 2024

Оновлено: 29 липня 2024

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Статті в журналах з теми "Pluto (dwarf planet) – drama"

Ksanfomality, L. V. "Pluto: Dwarf planet 134340." Solar System Research 50, no. 1 (January 2016): 67–80. http://dx.doi.org/10.1134/s0038094616010020.

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Shiga, David. "Is dwarf planet Ceres the wayward cousin of Pluto?" New Scientist 199, no. 2665 (July 2008): 10. http://dx.doi.org/10.1016/s0262-4079(08)61767-4.

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O'Callaghan, Jonathan. "Dwarf planet Pluto and Neptune's moon Triton might be siblings." New Scientist 262, no. 3497 (June 2024): 18. http://dx.doi.org/10.1016/s0262-4079(24)01177-1.

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Silva-Cabrera, José Sergio, Joel Humberto Castro-Chacón, Mauricio Reyes-Ruiz, Matthew J. Lehner, Carlos Alberto Guerrero, Chung-Kai Huang, Fernando Iván Alvarez-Santana, et al. "2018 August 15 stellar occultation by minor planet (134340) Pluto." Monthly Notices of the Royal Astronomical Society 511, no. 4 (March 8, 2022): 5550–59. http://dx.doi.org/10.1093/mnras/stac401.

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ABSTRACT We present photometric light curves of the stellar occultation event of the star UCAC4 341-187633 on 2018 August 15 by the minor planet (134340) Pluto. Photometric observations were carried out using the 2.1-m telescope at the San Pedro Mártir Observatory and the 1.3-m telescopes at Sites 2 and 3 of the Trans-Neptunian Automated Occultation Survey (TAOS II) project, and using a portable 0.4-m telescope from Bahía Asunción, Baja California Sur, Mexico. Different filters were used with the 2.1-m telescope and the TAOS II telescopes, whilst observations with the portable system were performed with no filter. The resulting light curves from the San Pedro Mártir Observatory show clear structures, with at least two bright spikes observed on ingress and one more observed on egress as the star traverses the atmosphere of the dwarf planet. The light curve from the portable telescope (440 km away) measured a longer duration for the occultation event, because the shadow of Pluto was observed at a lower latitude. Normalized light curves were created for the 2.1-m telescope, the Site 3 telescope of the TAOS II and the portable telescope. These normalized light curves show a difference in amplitude.

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Ekers, Ron. "The Prague IAU General Assembly, Pluto and the IAU processes." Proceedings of the International Astronomical Union 13, S349 (December 2018): 51–57. http://dx.doi.org/10.1017/s1743921319000115.

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AbstractAt the Sydney IAU General Assembly (GA) the statutes were modified to remove the votes by individual members. Few noticed this at the time but the subsequent reaction by disenfranchised members led us to revise this position in Prague. The need to have a members’ vote on the status of Pluto was complicated by these changes and the drama behind the scene at the Prague GA where the planet definition was resolved is not well known despite the huge public impact of this GA. I will describe some of the activities of the executive and its working groups during this very exciting GA. The IAU structures served us well during this process but of course there were also many lessons learned.

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Montmerle, Thierry. "The IAU, from New Worlds to Exoworlds: recollections of a mandate." Proceedings of the International Astronomical Union 13, S349 (December 2018): 90–111. http://dx.doi.org/10.1017/s1743921319000176.

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AbstractThis paper presents my own recollections of the difficult relations that existed between the IAU and a fraction of the public, especially in the USA, following the IAU decision to reclassify Pluto as a dwarf planet at the 2006 General Assembly in Prague, and which ultimately led the IAU to organize the NameExoWorlds international contest to give public names to selected exoplanets and their host stars. In spite of the success of the International Year of Astronomy in 2009, the Pluto controversy continued, and its consequences climaxed during my term (2012-2015), as NASA’s New Horizons probe approached Pluto for a flyby just before the 2015 General Assembly in Honolulu. It was during this period that the IAU launched the NameExoWorlds contest, which also came to a conclusion in Honolulu after over half a million votes were cast from all over the world. While the inside story of how the contest was organized has appeared elsewhere, here I focus on the historical and sociological context that made Pluto such a sensitive issue, especially in the USA, explaining why this contest generated another controversy between the IAU and the New Horizons team. However, after the world-wide success of NameExoWorlds, the IAU and the New Horizons team eventually reached an agreement on finalizing the characterization and names of a number of newly discovered Pluto and Charon surface features (an on-going process), while a new edition of NameExoWorlds is in preparation for the IAU centennial in 2019.

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Sicardy, B., J. L. Ortiz, M. Assafin, E. Jehin, A. Maury, E. Lellouch, R. Gil Hutton, et al. "A Pluto-like radius and a high albedo for the dwarf planet Eris from an occultation." Nature 478, no. 7370 (October 2011): 493–96. http://dx.doi.org/10.1038/nature10550.

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Crockett, Christopher. "Pluto: Explored: New Horizons is very close to its long-awaited rendezvous with the dwarf planet." Science News 187, no. 13 (June 15, 2015): 16–20. http://dx.doi.org/10.1002/scin.2015.187013016.

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Schenk, Paul, Chloe Beddingfield, Tanguy Bertrand, Carver Bierson, Ross Beyer, Veronica Bray, Dale Cruikshank, et al. "Triton: Topography and Geology of a Probable Ocean World with Comparison to Pluto and Charon." Remote Sensing 13, no. 17 (September 1, 2021): 3476. http://dx.doi.org/10.3390/rs13173476.

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The topography of Neptune’s large icy moon Triton could reveal important clues to its internal evolution, but has been difficult to determine. New global digital color maps for Triton have been produced as well as topographic data for <40% of the surface using stereogrammetry and photoclinometry. Triton is most likely a captured Kuiper Belt dwarf planet, similar though slightly larger in size and density to Pluto, and a likely ocean moon that exhibited plume activity during Voyager 2′s visit in 1989. No surface features or regional deviations of greater than ±1 km amplitude are found. Volatile ices in the southern terrains may take the form of extended lobate deposits 300–500 km across as well as dispersed bright materials that appear to embay local topography. Limb hazes may correlate with these deposits, indicating possible surface–atmosphere exchange. Triton’s topography contrasts with high relief up to 6 km observed by New Horizons on Pluto. Low relief of (cryo)volcanic features on Triton contrasts with high-standing massifs on Pluto, implying different viscosity materials. Solid-state convection occurs on both and at similar horizontal scales but in very different materials. Triton’s low relief is consistent with evolution of an ice shell subjected to high heat flow levels and may strengthen the case of an internal ocean on this active body.

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Li, Jian, Zhihong Jeff Xia, and Liyong Zhou. "Calibration of the angular momenta of the minor planets in the solar system." Astronomy & Astrophysics 630 (September 23, 2019): A68. http://dx.doi.org/10.1051/0004-6361/201834196.

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Aims. We aim to determine the relative angle between the total angular momentum of the minor planets and that of the Sun-planets system, and to improve the orientation of the invariable plane of the solar system. Methods. By utilizing physical parameters available in public domain archives, we assigned reasonable masses to 718 041 minor planets throughout the solar system, including near-Earth objects, main belt asteroids, Jupiter trojans, trans-Neptunian objects, scattered-disk objects, and centaurs. Then we combined the orbital data to calibrate the angular momenta of these small bodies, and evaluated the specific contribution of the massive dwarf planets. The effects of uncertainties on the mass determination and the observational incompleteness were also estimated. Results. We determine the total angular momentum of the known minor planets to be 1.7817 × 1046 g cm2 s−1. The relative angle α between this vector and the total angular momentum of the Sun-planets system is calculated to be about 14.74°. By excluding the dwarf planets Eris, Pluto, and Haumea, which have peculiar angular momentum directions, the angle α drops sharply to 1.76°; a similar result applies to each individual minor planet group (e.g., trans-Neptunian objects). This suggests that, without these three most massive bodies, the plane perpendicular to the total angular momentum of the minor planets would be close to the invariable plane of the solar system. On the other hand, the inclusion of Eris, Haumea, and Makemake can produce a difference of 1254 mas in the inclination of the invariable plane, which is much larger than the difference of 9 mas induced by Ceres, Vesta, and Pallas as found previously. By taking into account the angular momentum contributions from all minor planets, including the unseen ones, the orientation improvement of the invariable plane is larger than 1000 mas in inclination with a 1σ error of ∼50−140 mas.

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Дисертації з теми "Pluto (dwarf planet) – drama"

Cheng, Wing-hong, and 鄭穎康. "Tidal evolution of Pluto-Charon and the implications for the origin ofthe satellites Nix and Hydra." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B45846856.

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Книги з теми "Pluto (dwarf planet) – drama"

Roza, Greg. Pluto: The dwarf planet. New York: Gareth Stevens Pub., 2011.

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Adamson, Thomas K. Pluto: A dwarf planet. Mankato, MN: Capstone Press, 2008.

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Bredeson, Carmen. Pluto. New York: F. Watts, 2001.

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1957-, Stern Alan, and Tholen David J. 1955-, eds. Pluto and Charon. Tucson: University of Arizona Press, 1997.

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Boyle, Alan. The Case for Pluto. New York: John Wiley & Sons, Ltd., 2009.

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Hayhurst, Chris. Pluto and other dwarf planets. New York: Rosen Pub. Group, 2006.

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Vogt, Gregory. Pluto. Brookfield, Conn: Millbrook Press, 1994.

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Vogt, Gregory. Pluto. Brookfield, Conn: Millbrook Press, 1994.

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Owens, L. L. Pluto and other dwarf planets. Mankato, MN: Child's World, 2011.

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Tocci, Salvatore. A look at Pluto. New York: Franklin Watts, 2003.

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Частини книг з теми "Pluto (dwarf planet) – drama"

Rothery, David A. "7. Moons of small bodies." In Moons: A Very Short Introduction, 123–36. Oxford University Press, 2015. http://dx.doi.org/10.1093/actrade/9780198735274.003.0007.

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The small bodies of our Solar System consist of: asteroids (rocky or carbonaceous objects that are mainly concentrated in the space between the orbits of Mars and Jupiter); trans-Neptunian objects (icy bodies beyond Neptune’s orbit); comets (small icy bodies with strongly elliptical orbits that can come close to the Sun); and centaurs (asteroid-like bodies of dominantly icy rather than rocky composition, whose orbits lie beyond that of Jupiter, but inside Neptune’s). Of these, only comets are devoid of known moons. ‘Moons of small bodies’ describes some of the 165 asteroids known to have moons, as well as the moons of centaurs and trans-Neptunian objects, including the dwarf planet Pluto.

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