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Journal articles on the topic 'Comete halley'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Heudier, Jean-Louis. "Comet Halley: A Media Event." International Astronomical Union Colloquium 98 (1988): 205–7. http://dx.doi.org/10.1017/s0252921100092915.

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Comet P/Halley’s life as a “media event” started long ago, because the first use of communication (in the modern sense of the term) goes back to Rabelais, who published in Patagrueline Prognostication pour l’an 1532:“And whyth the comete sene laste yeare and the retrograte of Saturne a greate skoundrell shalle die, all weazynge and courd in scabbes, in the hospitall, and at his death there will be horrible warre between cattes and rattes, dogges and hares, faulcons and duckes, monkes and egges.”Since then ways of spreading ideas have progressed enormously, but comets have remained “fashionable

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2

Alexandre, Josette. "La comete de Halley a travers les ouvrages et manuscrits de l'Observatoire de Paris." Isis 77, no. 1 (1986): 79–84. http://dx.doi.org/10.1086/354040.

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3

A'Hearn, Michael F. "Coordinated programs for comet Halley." Symposium - International Astronomical Union 118 (1986): 223–35. http://dx.doi.org/10.1017/s0074180900151356.

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Because comets are so difficult to observe, it is essential to coordinate observations from a variety of telescopes in order to fully understand their behavior. The apparition of Comet Halley represents a unique opportunity for coordinated programs because this is the only predictable comet which is routinely bright enough for the many observational programs desired. The International Halley Watch is playing an advocacy and coordinating role in the observations of Halley. Coordinated photographic observations will provide a record of the development of jets in the coma and of the motion of fea

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4

Keller, Horst Uwe. "Comets : A Key to Solar System Formation." Zeitschrift für Naturforschung A 44, no. 10 (1989): 867–76. http://dx.doi.org/10.1515/zna-1989-1001.

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Abstract Four lines of information on comets are discussed: their orbits, their relation to other bodies of the planetary system, their physical state and chemical composition, and implications of recent observations of the nucleus of comet Halley. The in situ measurements during the flybys of comet Halley strongly support the assumption that comets are members of the solar system and were created during its formation. The region (heliocentric distance) of their formation is, however, still difficult to assess. The size, shape, and topography of the cometary nucleus suggest that it was formed

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5

Hage, Joniek I., and J. Mayo Greenberg. "The Dust in the Coma of Comet Halley." International Astronomical Union Colloquium 126 (1991): 261–64. http://dx.doi.org/10.1017/s0252921100066914.

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AbstractThe interstellar dust model of comets is numerically worked out to satisfy several basic constraints provided by observations of comet Halley and to derive the porosity of coma dust. The observational constraints are: (1) the strengths of the 3.4 μm and 9.7 μm emission bands; (2) the relative amount of silicates to organic materials; (3) the mass distribution of the dust. The results indicate that coma dust has a porosity in the range 0.93 &lt; P &lt; 0.975. Preliminary calculations concerning the observed linear polarization of comet Halley are presented.

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6

Pater, Imke de, Patrick Palmer, and Lewis E. Snyder. "A Review of Radio Interferometric Imaging of Comets." International Astronomical Union Colloquium 116, no. 1 (1989): 175–207. http://dx.doi.org/10.1017/s0252921100109686.

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AbstractWe present an overview of cometary observations carried out with the VLA. These include OH imaging observations, studies of other molecules and searches for continuum emission. Primarily, we discuss the OH observations obtained of Comet Halley, a periodic comet, and Comet Wilson, a “new” comet. The emission from Comet Halley is confined to a region a few times 105 km. The emission from Comet Wilson shows sporadic blobs at large distances (∼ 106 km from the center), which vary abruptly in both position and velocity. The generally accepted picture of excitation by UV pumping in a spheric

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7

Olivares, Jorge. "A Twice-Told Tail: Reinaldo Arenas's “El Cometa Halley”." PMLA/Publications of the Modern Language Association of America 117, no. 5 (2002): 1188–206. http://dx.doi.org/10.1632/003081202x60279.

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This essay analyzes the articulation of transgressive desires in Reinaldo Arenas's “El Cometa Halley,” a parodic continuation of Federico García Lorca's La casa de Bernarda Alba. I argue that by moving the Alba sisters from Spain to Cuba and liberating their repressed sexualities, Arenas pursues his fantasies of sexual freedom. Linking his rewriting of García Lorca to the historically significant arrival of Halley's comet in 1910, Arenas relies on the comet's phallic tail to set the story in motion. More specifically, “El Cometa Halley” sketches a preoedipal fantasy of mother-son incest that r

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8

Soja, R. H., E. Grün, P. Strub, et al. "IMEM2: a meteoroid environment model for the inner solar system." Astronomy & Astrophysics 628 (August 2019): A109. http://dx.doi.org/10.1051/0004-6361/201834892.

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Context. The interplanetary dust complex is currently understood to be largely the result of dust production from Jupiter-family comets, with contributions also from longer-period comets (Halley- and Oort-type) and collisionally produced asteroidal dust. Aims. Here we develop a dynamical model of the interplanetary dust cloud from these source populations in order to develop a risk and hazard assessment tool for interplanetary meteoroids in the inner solar system. Methods. The long-duration (1 Myr) integrations of dust grains from Jupiter-family and Halley-type comets and main belt asteroids w

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9

Chapman, C. R., L. Kresak, B. D. Donn, et al. "Commission 15: Physical Study of Comets, Minor Planets, and Meteorites." Transactions of the International Astronomical Union 19, no. 1 (1985): 167–87. http://dx.doi.org/10.1017/s0251107x00006295.

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The last three years have witnessed a growing interest in the physical properties of the small bodies in the solar system. Perhaps the most significant impetus to research on small bodies has been the imminent arrival of Comet Halley in the inner solar system. This famous comet, which was recovered in autumn 1982, has been the object of intense study during the past year as it has approached the sun and developed a tail. Much of the international, ground-based astronomical research on Halley has been coordinated through the International Halley Watch program. Spacecraft from several nations ha

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10

Prasad, Debi. "The Interaction of Cometary Plasma with Interplanetary Medium - A Post-Halley View." Symposium - International Astronomical Union 142 (1990): 429–34. http://dx.doi.org/10.1017/s0074180900088355.

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The strong interaction of cometary plasma with the interplanetary medium results the disconnection events and other features observed in plasma tail and the coma of comets. The understanding of these features provide direct probe of the heliospheric magnetic field. However the interpretation of these events is not without ambiguity, as revealed in the recent work with comet Halley. In this paper a review of the “Post-Halley era” developments of the cometary plasma physics is presented.

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11

Weissman, Paul R. "The cometary impactor flux at the Earth." Proceedings of the International Astronomical Union 2, S236 (2006): 441–50. http://dx.doi.org/10.1017/s1743921307003559.

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AbstractComets account for a small but very significant fraction of impactors on the Earth. Although the total number of Earth-crossing comets is modest as compared with asteroids, the more eccentric and inclined orbits of the comets result in much higher encounter velocities with the planet. Additionally, some Earth-crossing comets are significantly larger than any current near-Earth asteroids (NEAs); comets 1P/Halley and C/1995 O1 Hale-Bopp are good examples of this. Thus, the most energetic impacts on the Earth likely result from comets and not NEAs. The mean impact probability for long-per

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12

Fernández, J. A., and T. Gallardo. "From the Oort cloud to Halley-type comets." International Astronomical Union Colloquium 173 (1999): 327–38. http://dx.doi.org/10.1017/s0252921100031638.

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AbstractThe Oort cloud probably is the source of Halley-type (HT) comets and perhaps of some Jupiter-family (JF) comets. The process of capture of Oort cloud comets into HT comets by planetary perturbations and its efficiency are very important problems in comet ary dynamics. A small fraction of comets coming from the Oort cloud − of about 10−2− are found to become HT comets (orbital periods &lt; 200 yr). The steady-state population of HT comets is a complex function of the influx rate of new comets, the probability of capture and their physical lifetimes. From the discovery rate of active

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13

Knacke, R. F. "Comet Dust: Connections with Interstellar Dust." Symposium - International Astronomical Union 135 (1989): 415–28. http://dx.doi.org/10.1017/s0074180900125422.

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The Comet Halley campaigns resulted in an enormously better understanding of the composition of comets. Silicates, organic compounds, and volatile ices comprised of H2O, CO, CO2, S2, CN, and possibly CH4 and OCS occur in comet grains. These are all known or suspected constituents of interstellar dust. We review the chemical, elemental, and isotopic compositions of comet dust and compare this with interstellar matter. The many intriguing parallels suggest, but do not yet establish, a direct connection between comet dust and interstellar dust.

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14

Mukai, Sonoyo, Tadashi Mukai, and Sen Kikuchi. "Scattering Properties of Cometary Dust Based on Polarimetric Data." International Astronomical Union Colloquium 126 (1991): 249–52. http://dx.doi.org/10.1017/s0252921100066884.

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AbstractReferring to the dust model in Mukai and Mukai(1990), where the scattering by large rough particles and Mie scattering by small particles are taken into account, a phase function of linear polarization of several comets is examined, especially in a region of phase angles α near a maximum polarization. A lower maximum polarization observed in comet Austin(1989c1) than those in comets West(1975n) and P/Halley leads a speculation that a mixing ratio of rough scattering to Mie scattering in comet Austin increases from a sun-comet distance r of 0.6 AU to 1.2 AU. This implies that a shortage

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15

Swamy, K. S. Krishna. "Comets: pre- and post-Halley." Publications of the Astronomical Society of Australia 9, no. 2 (1991): 219–24. http://dx.doi.org/10.1017/s1323358000023912.

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AbstractThe recent intensive study of Comet Halley based on in situ measurements, observations carried out with rockets and satellites and supplemented with co-ordinated Earth based observations has not only confirmed pre-Halley results, but also has given new insight into the nature of the nucleus, dust, gas and the interaction of cometary plasma with the solar wind. These observations also have raised many new questions and problems. Several of these aspects will be discussed. For a better understanding of these problems, the planned future missions to comets will also be discussed.

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16

Brownlee, D. E., and A. L. Albee. "Laboratory and in-situ analysis of comet dust." Proceedings, annual meeting, Electron Microscopy Society of America 46 (1988): 8–9. http://dx.doi.org/10.1017/s0424820100102122.

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Comets are primitive, kilometer-sized bodies that formed in the outer regions of the solar system. Composed of ice and dust, comets are generally believed to be relic building blocks of the outer solar system that have been preserved at cryogenic temperatures since the formation of the Sun and planets. The analysis of cometary material is particularly important because the properties of cometary material provide direct information on the processes and environments that formed and influenced solid matter both in the early solar system and in the interstellar environments that preceded it.The fi

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17

Hanner, Martha S., and Alan T. Tokunaga. "Infrared Techniques for Comet Observations." International Astronomical Union Colloquium 116, no. 1 (1989): 67–91. http://dx.doi.org/10.1017/s0252921100109637.

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AbstractThe infrared spectral region (1–1000 μm) is important for studies of both molecules and solid grains in comets. Infrared astronomy is in the midst of a technological revolution, with the development of sensitive 2–dimensional arrays leading to infrared cameras and spectrometers with vastly improved sensitivity and resolution. The Halley campaign gave us tantalizing first glimpses of the comet science possible with this new technology, evidenced, for example, by the many new spectral features detected in the infrared. The techniques of photometry, imaging, and spectroscopy are reviewed

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18

Hughes, David W. "Post-Halley comets." Nature 359, no. 6391 (1992): 115–16. http://dx.doi.org/10.1038/359115b0.

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19

Huebner, W. F., D. C. Boice, H. U. Schmidt, and R. Wegmann. "Structure of the Coma: Chemistry and Solar Wind Interaction." International Astronomical Union Colloquium 116, no. 2 (1991): 907–36. http://dx.doi.org/10.1017/s025292110001277x.

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Much has been learned about the physics and chemistry of comets from the successful spacecraft encounters and intensive remote observing programs of Comets Halley and Giacobini-Zinner. Instead of being the panacea for our comet curiosity, these tantalizing “snapshots” have raised new questions, and many fundamental problems remain unsolved. To reap fuller benefits, extensive modeling is necessary to characterize the physical structure and chemical properties of the coma and to infer the composition and structure of the nucleus.

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20

Feldman, Paul D. "Ultraviolet Spectroscopy of Cometary Comae." International Astronomical Union Colloquium 116, no. 1 (1989): 139–48. http://dx.doi.org/10.1017/s0252921100109662.

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AbstractDuring the past decade, vacuum ultraviolet spectra of over 30 comets have been obtained with the International Ultraviolet Explorer (IUE) satellite observatory. With few exceptions, the spectra of these comets appear to be similar, with OH and H produced by the photodissociation of water being the dominant species and emissions of C, O, S, CS and CO+2 usually present. Although signs of variability of many kinds in comet spectra appear, the evidence from the ultraviolet observations suggests that all comets have the same basic chemical composition and that observed differences are due t

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21

Emel'yanenko, V. V. "From the Solar system comet cloud to near-Earth space." International Astronomical Union Colloquium 173 (1999): 339–44. http://dx.doi.org/10.1017/s025292110003164x.

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AbstractThe dynamical evolution of objects from different zones of the solar system comet cloud to near-Earth space has been investigated. The steady-state number of objects with perihelion distancesq&lt; 1.5 AU and periodsP &lt;20 yr, arising from the near-parabolic flux of comets with absolute magnitudes brighter thanH10= 7 is ∼ 200 − 1000. The corresponding number for Halley-type comets is hundreds of times larger than the number of known Halley-type comets. The flux of objects in the Centaurs zone, captured from the near-parabolic flux is 300 times as large as the flux of new comet

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22

Churyumov, K. I. "History of Cometary Exploration at Kyiv University." Highlights of Astronomy 12 (2002): 365–66. http://dx.doi.org/10.1017/s1539299600013769.

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AbstractThe comet explorers at Kyiv University took part in numerous international observational programs for study of comets: C/1973 E1 Kohoutek in 1974, 27P/Crommelin in 1984, 1P/ Halley in 1986, 23P/Brorsen-Metcalf in 1989, D/Shoemaker-Levy 9 in 1994, C/1996 B2 Hyakutake in 1996, C/1995 O1 Hale-Bopp in 1997, C/1999 S4 (LINEAR) in 2000 and others. Two comets, 67P/Churyumov-Gerasimenko in 1969 and C/1986 N1 (Churyumov-Solodovnikov) in 1986, were discovered. During 1939-2000 more than 1000 scientific papers devoted to comets were published in different journals, books and proceedings.

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23

Borovička, Jiří. "Properties of meteoroids from different classes of parent bodies." Proceedings of the International Astronomical Union 2, S236 (2006): 107–20. http://dx.doi.org/10.1017/s1743921307003134.

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AbstractMeteoroids observed to disintegrate in the terrestrial atmosphere can be directly linked to their parent bodies in case that they belong to certain meteor showers. We present a list of two dozens of parent bodies reliably associated with well recognized meteor showers. Among the parent bodies are long period comets, Halley-type comets, Jupiter family comets, comets of the inner solar system (such as 2P/Encke) and asteroids. Physical and chemical properties of meteoroids coming from various parents are compared on the basis of meteor heights, decelerations, light curves and spectra. Jup

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24

Visvanathan, N., Z. Meglick, and D. T. Wickramasinghe. "Spectropolarimetry of Comet Halley." International Astronomical Union Colloquium 126 (1991): 245–48. http://dx.doi.org/10.1017/s0252921100066872.

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AbstractSpectropolarimetric observations from 3800 to 7000 Å were obtained for the nucleus of comet Halley for nine nights during 1985-86. The observations were spaced over phase angle of 2 to 66 °. The continuum polarization without molecular-line contamination as well as the polarization of the molecular lines were evaluated. The plot of polarization versus the phase angle shows small negative polarization for angles less than 20°. The highest polarization measured for phase angle ≤ 66° is 19.6% .The lowest polarization of −2.0% has been measured at the phase angle ~ 10°. The variation of po

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25

Huebner, W. F., D. C. Boice, and C. M. Sharp. "Polyoxymethylene in Comet Halley." Astrophysical Journal 320 (September 1987): L149. http://dx.doi.org/10.1086/184992.

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26

Hadavi, Hadi. "Astrometry of Comet Halley." International Astronomical Union Colloquium 98 (1988): 164. http://dx.doi.org/10.1017/s0252921100092678.

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27

Hayden Smith, W. M., and W. V. Schempp. "[OI] in Comet Halley." Icarus 82, no. 1 (1989): 61–66. http://dx.doi.org/10.1016/0019-1035(89)90023-7.

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28

Hughes, David W. "The transition between long period comets, short period comets and meteoroid streams." International Astronomical Union Colloquium 83 (1985): 129–42. http://dx.doi.org/10.1017/s0252921100083858.

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It has long been realised that Jovian perturbation is the dominant cause of the transition of long period comets (Period > 200 yr) into short period ones (P < 200 yr). When the differences in the detectability of comets in the two groups are taken into account it is clear that the present day flux of long period comets is sufficient to provide the present collection of short period comets in the inner solar system.The fact that meteoroid streams are produced by decaying short period comets was first recognised around 1866 (see Hughes 1982a). The magnificent display of Leonids in that yea

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29

Mayer, Ben. "Searching for Comets." International Astronomical Union Colloquium 98 (1988): 112. http://dx.doi.org/10.1017/s0252921100092423.

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Methods of searching for comets, novae and other events using projection and video blink methods, and simple orientation aids were described. The methods are covered in the following references: 1.Liller, W., Mayer, B.: The Cambridge Astronomy Guide, Cambridge University Press, 19852.Mayer, B.: International Halley Seminar, Alden Biessen, Belgium, 1986 Oct.253.Mayer, B.: 20th ESLAB Symposium, “Exploration of Halley’s Comet”, Heidelberg, 1986 Oct.27-314.Mayer, B.: Mercury, (Journal of the Astronomical Society of the Pacific), 1987 July/August

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30

Beavers, W. I., and J. J. Eitter. "Fick Observatory spectrum scanners." Symposium - International Astronomical Union 118 (1986): 75–76. http://dx.doi.org/10.1017/s007418090015106x.

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Three low-dispersion (15–50A/mm)−1 spectrum scanners have been developed at Fick Observatory as instrumentation for small telescope research and teaching activity. They have been applied in solar eclipse, zodiacal light, stellar, and comet research programs. The two plane grating spectrometers and one holographic grating instrument have been employed on telescopes ranging from 7.6 to 61 cm aperture, generally with f/5 to f/8 configurations. Recently, one of the plane grating instruments has been modified to perform as a four-channel spectrometer for quantitative spectral classification and com

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31

Faria-Vaz, António. "O síndroma do cometa Halley." Revista Portuguesa de Clínica Geral 25, no. 4 (2009): 403–4. http://dx.doi.org/10.32385/rpmgf.v25i4.10642.

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32

Mello, Sylvio Ferraz de. "A propósito do Cometa Halley." Revista da Universidade de São Paulo, no. 2 (August 5, 1986): 141. http://dx.doi.org/10.11606/issn.2595-2501.rusp.1986.132123.

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33

Daohan, Chen, Liu Linzhong, and Alan Gilmore. "The splitting of Comet Halley." Advances in Space Research 21, no. 11 (1998): 1607–10. http://dx.doi.org/10.1016/s0273-1177(97)00955-1.

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34

Millis, R. L., and D. G. Schleicher. "Rotational period of comet Halley." Nature 324, no. 6098 (1986): 646–49. http://dx.doi.org/10.1038/324646a0.

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35

A'Hearn, Michael F., Susan Hoban, Peter V. Birch, Craig Bowers, Ralph Martin, and Daniel A. Klinglesmith. "Cyanogen jets in comet Halley." Nature 324, no. 6098 (1986): 649–51. http://dx.doi.org/10.1038/324649a0.

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36

Schloerb, F. Peter, Wayne M. Kinzel, Daryl A. Swade, and William M. Irvine. "HCN production from comet Halley." Astrophysical Journal 310 (November 1986): L55. http://dx.doi.org/10.1086/184781.

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37

Mason, John W., and Fred L. Whipple. "Comet Halley: Investigations, Results, Interpretations." Physics Today 44, no. 10 (1991): 120–21. http://dx.doi.org/10.1063/1.2810296.

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38

Huntress, WesleyT, Mark Alien, and Mona Delrtsky. "Carbon suboxide in comet Halley?" Nature 352, no. 6333 (1991): 316–18. http://dx.doi.org/10.1038/352316a0.

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39

CROVISIER, JACQUES, THÉRÈSE ENCRENAZ, and MICHEL COMBES. "Carbon suboxide in comet Halley." Nature 353, no. 6345 (1991): 610. http://dx.doi.org/10.1038/353610a0.

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40

Kurić, Lutvo. "Decoded Codes of Comet Halley." International Letters of Chemistry, Physics and Astronomy 29 (March 2014): 62–73. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.29.62.

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The subject of the research we are discussing in this text is the cyber-information access to the research of the harmonic dynamics of comet Halley. Cosmic mechanics has been always a perfect example of the regular, deterministic, motion which allows a prediction to a fairly high accuracy. The analysis of these data allowed us to conclude that the motion of Halley's comet is harmonious.

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41

Singh, Markandey, and Jai Prakash Chaturvedi. "Energy distribution for comet Halley." Earth, Moon and Planets 39, no. 2 (1987): 197–201. http://dx.doi.org/10.1007/bf00054062.

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42

Goraya, P. S., H. K. Duggal, R. K. Srivastava, and Wahab Uddin. "Variation in comet P/Halley." Earth, Moon and Planets 44, no. 2 (1989): 197–98. http://dx.doi.org/10.1007/bf00056318.

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43

Belton, M. J. S. "P/Halley: The Quintessential Comet." Science 230, no. 4731 (1985): 1229–36. http://dx.doi.org/10.1126/science.230.4731.1229.

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44

Wyckoff, Susan, Stephen C. Tegler, and Lisa Engel. "Nitrogen abundance in Comet Halley." Astrophysical Journal 367 (February 1991): 641. http://dx.doi.org/10.1086/169659.

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45

Campbell, D. B., J. K. Harmon, and I. I. Shapiro. "Radar observations of Comet Halley." Astrophysical Journal 338 (March 1989): 1094. http://dx.doi.org/10.1086/167259.

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46

Johnstone, A., A. Coates, S. Kellock, et al. "Ion flow at comet Halley." Nature 321, S6067 (1986): 344–47. http://dx.doi.org/10.1038/321344a0.

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47

Brandt, John C. "Space observations of comet Halley." Nature 321, no. 6068 (1986): 391–93. http://dx.doi.org/10.1038/321391a0.

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48

HOYLE, F., and N. C. WICKRAMASINGHE. "Organic dust in comet Halley." Nature 328, no. 6126 (1987): 117. http://dx.doi.org/10.1038/328117a0.

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49

KISSEL, J., and F. R. KRUEGER. "Organic dust in comet Halley." Nature 328, no. 6126 (1987): 117. http://dx.doi.org/10.1038/328117b0.

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50

Ferris, James P. "Comet Halley — A good omen!" Origins of Life and Evolution of the Biosphere 18, no. 3 (1988): 161–63. http://dx.doi.org/10.1007/bf01804668.

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