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Comet Hale-Bopp

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The Stardust mission.  (a)  <span class="search-highlight">Comet</span> <span class="search-highlight">Hale</span> <span class="search-highlight">Bopp</span> seen from Earth. The two tails ...
Published: 01 October 2020
Figure 7.1 The Stardust mission. (a) Comet Hale Bopp seen from Earth. The two tails are made of ionised particles (blue), orientated away from the Sun, and the coma is made of gas and dust released by the nucleus. (b) Artist’s view of the Stardust spacecraft with its vertical collector
Image
Range of D/H ratios in selected objects. The protosolar value is that of Ju...
Published: 01 February 2011
detected in the comet Hale-Bopp coma, and the range to Wild 2 dust brought back by the Stardust spacecraft. Data from literature (see text). C stands for carbonaceous and OM for organic matter. Other abbreviations are given in the text.
Journal Article
Published: 01 January 2008
Reviews in Mineralogy and Geochemistry (2008) 68 (1): 55–72.
... ). This is interpreted as evidence that cometary silicates initially are significantly crystalline, and that these silicates gradually become more amorphous upon passing the Sun several times. A full 2–45 μm spectrum, obtained for Oort Cloud comet Hale-Bopp ( Crovisier et al. 1997 ) supports this view, by showing strong...
Journal Article
Journal: Elements
Published: 01 January 2005
Elements (2005) 1 (1): 39–43.
... J , Leech K , Bockelée-Morvan D , Brooke TY , Hanner MS , Altieri B , Keller HU , Lellouch E. ( 1997 ) The spectrum of comet Hale-Bopp (C/1995 O1) observed with the Infrared Space Observatory at 2.9 astronomical units from the Sun . Science 275 : 1904 – 1907...
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Journal Article
Published: 01 January 2008
Reviews in Mineralogy and Geochemistry (2008) 68 (1): 247–272.
... comets towards the end of the last century, Hyakutake and Hale-Bopp, triggered an enormous scientific interest in these small icy bodies and in their relationship with interstellar materials. However, after the multi-spacecraft visit at comet Halley in 1986, only a few missions have specifically targeted...
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Journal Article
Published: 01 November 2008
American Mineralogist (2008) 93 (11-12): 1933–1936.
..., E. ( 1997 ) The spectrum of Comet Hale-Bopp (C/1995 01) observed with the Infrared Space Observatory at 2.9 AU from the Sun. Science , 275 , 1904 –1907. Grove, T.L. ( 1982 ) Use of exsolution lamellae in lunar clinopyroxenes as cooling rate speedometers: An experimental calibration. American...
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Journal Article
Journal: Elements
Published: 01 February 2011
Elements (2011) 7 (1): 29–34.
... detected in the comet Hale-Bopp coma, and the range to Wild 2 dust brought back by the Stardust spacecraft. Data from literature (see text). C stands for carbonaceous and OM for organic matter. Other abbreviations are given in the text. ...
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Journal Article
Journal: Geology
Published: 01 April 2010
Geology (2010) 38 (4): 355–358.
.... REFERENCES CITED Bird M.K. Huchtmeier W.K. Gensheimer P. Wilson T.L. Janardhan P. Lemme C. , 1997 , Radio detection of ammonia in comet Hale-Bopp : Astronomy & Astrophysics , v. 325 , p. L5 – L8 . De Angelis M. Steffensen J.P. Legrand M. Clausen H...
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Journal Article
Published: 01 January 2002
Reviews in Mineralogy and Geochemistry (2002) 47 (1): 21–70.
... of a noble gas in a comet has been published. Stern et al. (2000) report a production rate ratio Ar/O of 0.0058±0.0017 in Hale-Bopp’s coma (Table 11 ). Assuming this value to represent the abundance ratio Ar/O, the authors conclude that Ar is enriched in the coma by a factor of 1.8±0.96 relative to oxygen...
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Journal Article
Journal: Elements
Published: 01 April 2018
Elements (2018) 14 (2): 107–112.
... with a kinetic energy equivalent to ∼2 billion megatonnes of TNT, or 35,000 times the biggest thermonuclear bomb ever detonated. The 76 km comet HaleBopp is bigger than the largest known near-Earth asteroid: the 32 km large 1036 Ganymed. Because few comets have been discovered so far, meteor showers...
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Journal Article
Published: 01 January 2006
Reviews in Mineralogy and Geochemistry (2006) 62 (1): 421–450.
... ) and micrometeorites (3.3–4.2 × 10 −3 ; Marty et al. 2005 ) present heavier 15 N/ 14 N ratios which encompass the range of terrestrial values. Remote sensing measurements on comets Hale-Bopp and LINEAR have shown a high degree of isotopic disequilibrium for N between HCN ( 15 N/ 14 N = 3.1±0.4 × 10 −3 ; Jewitt et...
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Journal Article
Published: 01 October 2020
Geochemical Perspectives (2020) 9 (2): 242–253.
...Figure 7.1 The Stardust mission. (a) Comet Hale Bopp seen from Earth. The two tails are made of ionised particles (blue), orientated away from the Sun, and the coma is made of gas and dust released by the nucleus. (b) Artist’s view of the Stardust spacecraft with its vertical collector...
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Journal Article
Journal: Elements
Published: 01 February 2009
Elements (2009) 5 (1): 41–46.
...-bearing minerals or ice. Comets are frequently invoked as the source of Earth's water. However, the deuterium to hydrogen ratio of the oceans is much less than in the three comets for which D/H measurements are available (Halley, Hale-Bopp, and Hyakutake). Comets strike the Moon relatively frequently...
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Journal Article
Published: 01 January 2014
Reviews in Mineralogy and Geochemistry (2014) 78 (1): 399–446.
..., the refractory remains left behind by the sublimation of dirty ice. While water is the major volatile species on comets, detection of water on the surface has been elusive. Davies et al. (1997) detected weak absorptions attributed to water ice in comet Hale-Bopp but the spectra included the coma. They also...
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Journal Article
Published: 01 January 2001
Reviews in Mineralogy and Geochemistry (2001) 43 (1): 279–318.
... , Gautier D ( 1998 ) A determination of the HDO/H 2 O ratio in comet C/1995 O1 (Hale-Bopp) . Science 279 : 842 – 844 Messenger S ( 2000 ) Identification of molecular-cloud material in interplanetary dust particles . Nature 404 : 968 – 971 Messenger S , Walker RM...
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Journal Article
Published: 01 December 2007
European Journal of Mineralogy (2007) 19 (6): 771–782.
... shocks . ApJ , 225 , 887 – 892 . Crovisier , J. , Brooke , T.Y. , Hanner , M.S. , Keller , H.U. , Lamy , P.L. , Altieri , B. , Bockelee-Morvan , D. , Jorda , L. , Leech , K. , Lellouch , E. ( 1996 ): The infrared spectrum of comet C/1995 O1 (Hale-Bopp...
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Journal Article
Published: 01 January 2014
American Mineralogist (2014) 99 (1): 35–43.
.... Brooke T.Y. Hanner M.S. Altieri B. Keller H.U. Lellouch E. ( 1997 ) The spectrum of comet Hale-Bopp (C/1995 O1) observed with the Infrared Space Observatory at 2.9 astronomical units from the Sun . Science , 275 , 1904 – 1907 . da Silva C. Stixrude L. Wentzcovitch...
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Journal Article
Published: 01 January 2002
Reviews in Mineralogy and Geochemistry (2002) 49 (1): 317–339.
... spectrum for another IDP and the emission spectra for Comet Hale Bopp and Comet Halley. In this case the composition of the particles is a mixture of GEMS, enstatite, forsterite and other glassy silicates. The authors conclude, after introducing further corroborating evidence, that a presolar interstellar...
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Series: Geological Society, London, Special Publications
Published: 01 January 2002
DOI: 10.1144/GSL.SP.2002.199.01.11
EISBN: 9781862394476
... in specific fractionation that remains to be documented. The recent discovery that comet C/1995 Ol (Hale Bopp) contains argon in solar proportion ( Stern et al. 2002 ) suggests, however, that fractionation of heavy rare gases in comets is unlikely. The case of major volatiles The case of major...
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