How Well Do Experimental Results on Large Samples of Gas-Laden Amorphous Ice Duplicate Deep Impact’s Findings?
Abstract The findings of Deep Impact on the structure and composition of Tempel-1 are compared with our experimental results on large (20 cm diameter and up to 10 cm high) samples of gas-laden amorphous ice which does not contain dust. The mechanical ∼tensile strength inferred for Tempel-1: up to 12...
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| Autor*in: |
Bar-Nun, A. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2008 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer Science+Business Media B.V. 2008 |
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| Übergeordnetes Werk: |
Enthalten in: Space science reviews - Springer Netherlands, 1962, 138(2008), 1-4 vom: 30. Jan., Seite 199-205 |
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| Übergeordnetes Werk: |
volume:138 ; year:2008 ; number:1-4 ; day:30 ; month:01 ; pages:199-205 |
| Links: |
|---|
| DOI / URN: |
10.1007/s11214-008-9307-6 |
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| Katalog-ID: |
OLC2033694372 |
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| 520 | |a Abstract The findings of Deep Impact on the structure and composition of Tempel-1 are compared with our experimental results on large (20 cm diameter and up to 10 cm high) samples of gas-laden amorphous ice which does not contain dust. The mechanical ∼tensile strength inferred for Tempel-1: up to 12 kPa is close to our experimental findings of 2–4 kPa. This means that Tempel-1 is as fluffy as our very fluffy, talcum like, ice sample. The thermal inertia: 30<I<100 W $ K^{−1} $ $ m^{−2} $ $ s^{1/2} $ is close to our value of 80. The density of 350±250 kg $ m^{−3} $, is close to our value of 250–300 kg $ m^{−3} $, taking into account an ice/silicate ratio of 1 in the comet, while we study pure ice. Surface morphological features, such as non-circular depressions and chaotic terrain, were observed in our experiments. The only small increase in the gas/water vapor ratio pre- and post-impact, suggest that in the area excavated by the impactor, the 135 K front did not penetrate deeper than a few meters. Altogether, the agreement between the findings of Deep Impact and our experimental results point to a loose agglomerate of ice grains (with a silicate-organic core), which was formed by a very gentle aggregation of the ice grains, without compaction. | ||
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10.1007/s11214-008-9307-6 doi (DE-627)OLC2033694372 (DE-He213)s11214-008-9307-6-p DE-627 ger DE-627 rakwb eng 600 VZ 16,12 ssgn Bar-Nun, A. verfasserin aut How Well Do Experimental Results on Large Samples of Gas-Laden Amorphous Ice Duplicate Deep Impact’s Findings? 2008 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media B.V. 2008 Abstract The findings of Deep Impact on the structure and composition of Tempel-1 are compared with our experimental results on large (20 cm diameter and up to 10 cm high) samples of gas-laden amorphous ice which does not contain dust. The mechanical ∼tensile strength inferred for Tempel-1: up to 12 kPa is close to our experimental findings of 2–4 kPa. This means that Tempel-1 is as fluffy as our very fluffy, talcum like, ice sample. The thermal inertia: 30<I<100 W $ K^{−1} $ $ m^{−2} $ $ s^{1/2} $ is close to our value of 80. The density of 350±250 kg $ m^{−3} $, is close to our value of 250–300 kg $ m^{−3} $, taking into account an ice/silicate ratio of 1 in the comet, while we study pure ice. Surface morphological features, such as non-circular depressions and chaotic terrain, were observed in our experiments. The only small increase in the gas/water vapor ratio pre- and post-impact, suggest that in the area excavated by the impactor, the 135 K front did not penetrate deeper than a few meters. Altogether, the agreement between the findings of Deep Impact and our experimental results point to a loose agglomerate of ice grains (with a silicate-organic core), which was formed by a very gentle aggregation of the ice grains, without compaction. Comets: general Comets: Tempel-1 Pat-El, I. aut Laufer, D. aut Enthalten in Space science reviews Springer Netherlands, 1962 138(2008), 1-4 vom: 30. Jan., Seite 199-205 (DE-627)129086606 (DE-600)4860-4 (DE-576)014420724 0038-6308 nnns volume:138 year:2008 number:1-4 day:30 month:01 pages:199-205 https://doi.org/10.1007/s11214-008-9307-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-AST SSG-OPC-AST GBV_ILN_22 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_2279 GBV_ILN_4046 GBV_ILN_4306 GBV_ILN_4700 AR 138 2008 1-4 30 01 199-205 |
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10.1007/s11214-008-9307-6 doi (DE-627)OLC2033694372 (DE-He213)s11214-008-9307-6-p DE-627 ger DE-627 rakwb eng 600 VZ 16,12 ssgn Bar-Nun, A. verfasserin aut How Well Do Experimental Results on Large Samples of Gas-Laden Amorphous Ice Duplicate Deep Impact’s Findings? 2008 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media B.V. 2008 Abstract The findings of Deep Impact on the structure and composition of Tempel-1 are compared with our experimental results on large (20 cm diameter and up to 10 cm high) samples of gas-laden amorphous ice which does not contain dust. The mechanical ∼tensile strength inferred for Tempel-1: up to 12 kPa is close to our experimental findings of 2–4 kPa. This means that Tempel-1 is as fluffy as our very fluffy, talcum like, ice sample. The thermal inertia: 30<I<100 W $ K^{−1} $ $ m^{−2} $ $ s^{1/2} $ is close to our value of 80. The density of 350±250 kg $ m^{−3} $, is close to our value of 250–300 kg $ m^{−3} $, taking into account an ice/silicate ratio of 1 in the comet, while we study pure ice. Surface morphological features, such as non-circular depressions and chaotic terrain, were observed in our experiments. The only small increase in the gas/water vapor ratio pre- and post-impact, suggest that in the area excavated by the impactor, the 135 K front did not penetrate deeper than a few meters. Altogether, the agreement between the findings of Deep Impact and our experimental results point to a loose agglomerate of ice grains (with a silicate-organic core), which was formed by a very gentle aggregation of the ice grains, without compaction. Comets: general Comets: Tempel-1 Pat-El, I. aut Laufer, D. aut Enthalten in Space science reviews Springer Netherlands, 1962 138(2008), 1-4 vom: 30. Jan., Seite 199-205 (DE-627)129086606 (DE-600)4860-4 (DE-576)014420724 0038-6308 nnns volume:138 year:2008 number:1-4 day:30 month:01 pages:199-205 https://doi.org/10.1007/s11214-008-9307-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-AST SSG-OPC-AST GBV_ILN_22 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_2279 GBV_ILN_4046 GBV_ILN_4306 GBV_ILN_4700 AR 138 2008 1-4 30 01 199-205 |
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10.1007/s11214-008-9307-6 doi (DE-627)OLC2033694372 (DE-He213)s11214-008-9307-6-p DE-627 ger DE-627 rakwb eng 600 VZ 16,12 ssgn Bar-Nun, A. verfasserin aut How Well Do Experimental Results on Large Samples of Gas-Laden Amorphous Ice Duplicate Deep Impact’s Findings? 2008 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media B.V. 2008 Abstract The findings of Deep Impact on the structure and composition of Tempel-1 are compared with our experimental results on large (20 cm diameter and up to 10 cm high) samples of gas-laden amorphous ice which does not contain dust. The mechanical ∼tensile strength inferred for Tempel-1: up to 12 kPa is close to our experimental findings of 2–4 kPa. This means that Tempel-1 is as fluffy as our very fluffy, talcum like, ice sample. The thermal inertia: 30<I<100 W $ K^{−1} $ $ m^{−2} $ $ s^{1/2} $ is close to our value of 80. The density of 350±250 kg $ m^{−3} $, is close to our value of 250–300 kg $ m^{−3} $, taking into account an ice/silicate ratio of 1 in the comet, while we study pure ice. Surface morphological features, such as non-circular depressions and chaotic terrain, were observed in our experiments. The only small increase in the gas/water vapor ratio pre- and post-impact, suggest that in the area excavated by the impactor, the 135 K front did not penetrate deeper than a few meters. Altogether, the agreement between the findings of Deep Impact and our experimental results point to a loose agglomerate of ice grains (with a silicate-organic core), which was formed by a very gentle aggregation of the ice grains, without compaction. Comets: general Comets: Tempel-1 Pat-El, I. aut Laufer, D. aut Enthalten in Space science reviews Springer Netherlands, 1962 138(2008), 1-4 vom: 30. Jan., Seite 199-205 (DE-627)129086606 (DE-600)4860-4 (DE-576)014420724 0038-6308 nnns volume:138 year:2008 number:1-4 day:30 month:01 pages:199-205 https://doi.org/10.1007/s11214-008-9307-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-AST SSG-OPC-AST GBV_ILN_22 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_2279 GBV_ILN_4046 GBV_ILN_4306 GBV_ILN_4700 AR 138 2008 1-4 30 01 199-205 |
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10.1007/s11214-008-9307-6 doi (DE-627)OLC2033694372 (DE-He213)s11214-008-9307-6-p DE-627 ger DE-627 rakwb eng 600 VZ 16,12 ssgn Bar-Nun, A. verfasserin aut How Well Do Experimental Results on Large Samples of Gas-Laden Amorphous Ice Duplicate Deep Impact’s Findings? 2008 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media B.V. 2008 Abstract The findings of Deep Impact on the structure and composition of Tempel-1 are compared with our experimental results on large (20 cm diameter and up to 10 cm high) samples of gas-laden amorphous ice which does not contain dust. The mechanical ∼tensile strength inferred for Tempel-1: up to 12 kPa is close to our experimental findings of 2–4 kPa. This means that Tempel-1 is as fluffy as our very fluffy, talcum like, ice sample. The thermal inertia: 30<I<100 W $ K^{−1} $ $ m^{−2} $ $ s^{1/2} $ is close to our value of 80. The density of 350±250 kg $ m^{−3} $, is close to our value of 250–300 kg $ m^{−3} $, taking into account an ice/silicate ratio of 1 in the comet, while we study pure ice. Surface morphological features, such as non-circular depressions and chaotic terrain, were observed in our experiments. The only small increase in the gas/water vapor ratio pre- and post-impact, suggest that in the area excavated by the impactor, the 135 K front did not penetrate deeper than a few meters. Altogether, the agreement between the findings of Deep Impact and our experimental results point to a loose agglomerate of ice grains (with a silicate-organic core), which was formed by a very gentle aggregation of the ice grains, without compaction. Comets: general Comets: Tempel-1 Pat-El, I. aut Laufer, D. aut Enthalten in Space science reviews Springer Netherlands, 1962 138(2008), 1-4 vom: 30. Jan., Seite 199-205 (DE-627)129086606 (DE-600)4860-4 (DE-576)014420724 0038-6308 nnns volume:138 year:2008 number:1-4 day:30 month:01 pages:199-205 https://doi.org/10.1007/s11214-008-9307-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-AST SSG-OPC-AST GBV_ILN_22 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_2279 GBV_ILN_4046 GBV_ILN_4306 GBV_ILN_4700 AR 138 2008 1-4 30 01 199-205 |
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10.1007/s11214-008-9307-6 doi (DE-627)OLC2033694372 (DE-He213)s11214-008-9307-6-p DE-627 ger DE-627 rakwb eng 600 VZ 16,12 ssgn Bar-Nun, A. verfasserin aut How Well Do Experimental Results on Large Samples of Gas-Laden Amorphous Ice Duplicate Deep Impact’s Findings? 2008 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media B.V. 2008 Abstract The findings of Deep Impact on the structure and composition of Tempel-1 are compared with our experimental results on large (20 cm diameter and up to 10 cm high) samples of gas-laden amorphous ice which does not contain dust. The mechanical ∼tensile strength inferred for Tempel-1: up to 12 kPa is close to our experimental findings of 2–4 kPa. This means that Tempel-1 is as fluffy as our very fluffy, talcum like, ice sample. The thermal inertia: 30<I<100 W $ K^{−1} $ $ m^{−2} $ $ s^{1/2} $ is close to our value of 80. The density of 350±250 kg $ m^{−3} $, is close to our value of 250–300 kg $ m^{−3} $, taking into account an ice/silicate ratio of 1 in the comet, while we study pure ice. Surface morphological features, such as non-circular depressions and chaotic terrain, were observed in our experiments. The only small increase in the gas/water vapor ratio pre- and post-impact, suggest that in the area excavated by the impactor, the 135 K front did not penetrate deeper than a few meters. Altogether, the agreement between the findings of Deep Impact and our experimental results point to a loose agglomerate of ice grains (with a silicate-organic core), which was formed by a very gentle aggregation of the ice grains, without compaction. Comets: general Comets: Tempel-1 Pat-El, I. aut Laufer, D. aut Enthalten in Space science reviews Springer Netherlands, 1962 138(2008), 1-4 vom: 30. Jan., Seite 199-205 (DE-627)129086606 (DE-600)4860-4 (DE-576)014420724 0038-6308 nnns volume:138 year:2008 number:1-4 day:30 month:01 pages:199-205 https://doi.org/10.1007/s11214-008-9307-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-AST SSG-OPC-AST GBV_ILN_22 GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_2279 GBV_ILN_4046 GBV_ILN_4306 GBV_ILN_4700 AR 138 2008 1-4 30 01 199-205 |
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How Well Do Experimental Results on Large Samples of Gas-Laden Amorphous Ice Duplicate Deep Impact’s Findings? |
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How Well Do Experimental Results on Large Samples of Gas-Laden Amorphous Ice Duplicate Deep Impact’s Findings? |
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Bar-Nun, A. |
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Bar-Nun, A. Pat-El, I. Laufer, D. |
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how well do experimental results on large samples of gas-laden amorphous ice duplicate deep impact’s findings? |
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How Well Do Experimental Results on Large Samples of Gas-Laden Amorphous Ice Duplicate Deep Impact’s Findings? |
| abstract |
Abstract The findings of Deep Impact on the structure and composition of Tempel-1 are compared with our experimental results on large (20 cm diameter and up to 10 cm high) samples of gas-laden amorphous ice which does not contain dust. The mechanical ∼tensile strength inferred for Tempel-1: up to 12 kPa is close to our experimental findings of 2–4 kPa. This means that Tempel-1 is as fluffy as our very fluffy, talcum like, ice sample. The thermal inertia: 30<I<100 W $ K^{−1} $ $ m^{−2} $ $ s^{1/2} $ is close to our value of 80. The density of 350±250 kg $ m^{−3} $, is close to our value of 250–300 kg $ m^{−3} $, taking into account an ice/silicate ratio of 1 in the comet, while we study pure ice. Surface morphological features, such as non-circular depressions and chaotic terrain, were observed in our experiments. The only small increase in the gas/water vapor ratio pre- and post-impact, suggest that in the area excavated by the impactor, the 135 K front did not penetrate deeper than a few meters. Altogether, the agreement between the findings of Deep Impact and our experimental results point to a loose agglomerate of ice grains (with a silicate-organic core), which was formed by a very gentle aggregation of the ice grains, without compaction. © Springer Science+Business Media B.V. 2008 |
| abstractGer |
Abstract The findings of Deep Impact on the structure and composition of Tempel-1 are compared with our experimental results on large (20 cm diameter and up to 10 cm high) samples of gas-laden amorphous ice which does not contain dust. The mechanical ∼tensile strength inferred for Tempel-1: up to 12 kPa is close to our experimental findings of 2–4 kPa. This means that Tempel-1 is as fluffy as our very fluffy, talcum like, ice sample. The thermal inertia: 30<I<100 W $ K^{−1} $ $ m^{−2} $ $ s^{1/2} $ is close to our value of 80. The density of 350±250 kg $ m^{−3} $, is close to our value of 250–300 kg $ m^{−3} $, taking into account an ice/silicate ratio of 1 in the comet, while we study pure ice. Surface morphological features, such as non-circular depressions and chaotic terrain, were observed in our experiments. The only small increase in the gas/water vapor ratio pre- and post-impact, suggest that in the area excavated by the impactor, the 135 K front did not penetrate deeper than a few meters. Altogether, the agreement between the findings of Deep Impact and our experimental results point to a loose agglomerate of ice grains (with a silicate-organic core), which was formed by a very gentle aggregation of the ice grains, without compaction. © Springer Science+Business Media B.V. 2008 |
| abstract_unstemmed |
Abstract The findings of Deep Impact on the structure and composition of Tempel-1 are compared with our experimental results on large (20 cm diameter and up to 10 cm high) samples of gas-laden amorphous ice which does not contain dust. The mechanical ∼tensile strength inferred for Tempel-1: up to 12 kPa is close to our experimental findings of 2–4 kPa. This means that Tempel-1 is as fluffy as our very fluffy, talcum like, ice sample. The thermal inertia: 30<I<100 W $ K^{−1} $ $ m^{−2} $ $ s^{1/2} $ is close to our value of 80. The density of 350±250 kg $ m^{−3} $, is close to our value of 250–300 kg $ m^{−3} $, taking into account an ice/silicate ratio of 1 in the comet, while we study pure ice. Surface morphological features, such as non-circular depressions and chaotic terrain, were observed in our experiments. The only small increase in the gas/water vapor ratio pre- and post-impact, suggest that in the area excavated by the impactor, the 135 K front did not penetrate deeper than a few meters. Altogether, the agreement between the findings of Deep Impact and our experimental results point to a loose agglomerate of ice grains (with a silicate-organic core), which was formed by a very gentle aggregation of the ice grains, without compaction. © Springer Science+Business Media B.V. 2008 |
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How Well Do Experimental Results on Large Samples of Gas-Laden Amorphous Ice Duplicate Deep Impact’s Findings? |
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