STORRE
STORRE: Stirling Online Research Repository
http://hdl.handle.net/1893/27539| Appears in Collections: | Biological and Environmental Sciences Journal Articles |
| Peer Review Status: | Refereed |
| Title: | Thermal and mechanical properties of the near-surface layers of comet 67P/Churyumov-Gerasimenko |
| Author(s): | Spohn, Tilman Knollenberg, Joerg Ball, Andrew J Banaszkiewicz, Marek Benkhoff, Johannes Grott, Matthias Grygorczuk, Jerzy Hüttig, Christian Hagermann, Axel Kargl, Günter Kaufmann, Erika Kömle, Norbert Kührt, Ekkehard Kossacki, Konrad J Marczewski, Wojciech |
| Contact Email: | axel.hagermann@stir.ac.uk |
| Issue Date: | 31-Jul-2015 |
| Date Deposited: | 5-Jul-2018 |
| Citation: | Spohn T, Knollenberg J, Ball AJ, Banaszkiewicz M, Benkhoff J, Grott M, Grygorczuk J, Hüttig C, Hagermann A, Kargl G, Kaufmann E, Kömle N, Kührt E, Kossacki KJ & Marczewski W (2015) Thermal and mechanical properties of the near-surface layers of comet 67P/Churyumov-Gerasimenko. Science, 349 (6247), Art. No.: aab0464. https://doi.org/10.1126/science.aab0464 |
| Abstract: | Thermal and mechanical material properties determine comet evolution and even solar system formation because comets are considered remnant volatile-rich planetesimals. Using data from the Multipurpose Sensors for Surface and Sub-Surface Science (MUPUS) instrument package gathered at the Philae landing site Abydos on comet 67P/Churyumov-Gerasimenko, we found the diurnal temperature to vary between 90 and 130 K.The surface emissivity was 0.97, and the local thermal inertia was 85 ± 35 J m-2 K-1s-1/2-.The MUPUS thermal probe did not fully penetrate the near-surface layers, suggesting a local resistance of the ground to penetration of >4 megapascals, equivalent to >2 megapascal uniaxial compressive strength. A sintered near-surface microporous dust-ice layer with a porosity of 30 to 65% is consistent with the data. |
| DOI Link: | 10.1126/science.aab0464 |
| Rights: | The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. |
| Notes: | Additional co-authors: I. Pelivan, R. Schrödter, K. Seiferlin |
| Licence URL(s): | http://www.rioxx.net/licenses/under-embargo-all-rights-reserved |
| File | Description | Size | Format | |
|---|---|---|---|---|
| Spohn et al 2015.pdf | Fulltext - Published Version | 472.66 kB | Adobe PDF | Under Permanent Embargo Request a copy |
Note: If any of the files in this item are currently embargoed, you can request a copy directly from the author by clicking the padlock icon above. However, this facility is dependent on the depositor still being contactable at their original email address.
This item is protected by original copyright |
Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
The metadata of the records in the Repository are available under the CC0 public domain dedication: No Rights Reserved https://creativecommons.org/publicdomain/zero/1.0/
If you believe that any material held in STORRE infringes copyright, please contact library@stir.ac.uk providing details and we will remove the Work from public display in STORRE and investigate your claim.