@article{TosiCapaccioniCapriaetal.2019,
  author    = {Tosi, Federico and Capaccioni, F. and Capria, M. T. and Mottola, Stefano and Zinzi, A. and Ciarniello, M. and Filacchione, G. and Hofstadter, M. and Fonti, S. and Formisano, M. and Kappel, David and K{\"u}hrt, E. and Leyrat, C. and Vincent, J-B and Arnold, G. and De Sanctis, M. C. and Longobardo, Andrea and Palomba, E. and Raponi, A. and Rousseau, Batiste and Schmitt, Bernard and Barucci, Maria Antonietta and Bellucci, Giancarlo and Benkhoff, Johannes and Bockelee-Morvan, D. and Cerroni, P. and Combe, J-Ph and Despan, D. and Erard, St{\´e}phane and Mancarella, F. and McCord, T. B. and Migliorini, Alessandra and Orofino, V and Piccioni, G.},
  title     = {The changing temperature of the nucleus of comet 67P induced by morphological and seasonal effects},
  series = {Nature astronomy},
  volume    = {3},
  journal   = {Nature astronomy},
  number    = {7},
  publisher = {Nature Publ. Group},
  address   = {London},
  issn      = {2397-3366},
  doi       = {10.1038/s41550-019-0740-0},
  pages     = {649 -- 658},
  year      = {2019},
  abstract  = {Knowledge of the surface temperature distribution on a comet's nucleus and its temporal evolution at different timescales is key to constraining its thermophysical properties and understanding the physical processes that take place at and below the surface. Here we report on time-resolved maps of comet 67P/Churyumov-Gerasimenko retrieved on the basis of infrared data acquired by the Visible InfraRed and Thermal Imaging Spectrometer (VIRTIS) onboard the Rosetta orbiter in 2014, over a roughly two-month period in the pre-perihelion phase at heliocentric distances between 3.62 and 3.31 au from the Sun. We find that at a spatial resolution ≤15 m per pixel, the measured temperatures point out the major effect that self-heating, due to the complex shape of the nucleus, has on the diurnal temperature variation. The bilobate nucleus of comet 67P also induces daytime shadowing effects, which result in large thermal gradients. Over longer periods, VIRTIS-derived temperature values reveal seasonal changes driven by decreasing heliocentric distance combined with an increasing abundance of ice within the uppermost centimetre-thick layer, which implies the possibility of having a largely pristine nucleus interior already in the shallow subsurface},
  language  = {en}
}
@article{ToySutherlandTownendetal.2017,
  author    = {Toy, Virginia Gail and Sutherland, Rupert and Townend, John and Allen, Michael J. and Becroft, Leeza and Boles, Austin and Boulton, Carolyn and Carpenter, Brett and Cooper, Alan and Cox, Simon C. and Daube, Christopher and Faulkner, D. R. and Halfpenny, Angela and Kato, Naoki and Keys, Stephen and Kirilova, Martina and Kometani, Yusuke and Little, Timothy and Mariani, Elisabetta and Melosh, Benjamin and Menzies, Catriona D. and Morales, Luiz and Morgan, Chance and Mori, Hiroshi and Niemeijer, Andre and Norris, Richard and Prior, David and Sauer, Katrina and Schleicher, Anja Maria and Shigematsu, Norio and Teagle, Damon A. H. and Tobin, Harold and Valdez, Robert and Williams, Jack and Yeo, Samantha and Baratin, Laura-May and Barth, Nicolas and Benson, Adrian and Boese, Carolin and C{\´e}l{\´e}rier, Bernard and Chamberlain, Calum J. and Conze, Ronald and Coussens, Jamie and Craw, Lisa and Doan, Mai-Linh and Eccles, Jennifer and Grieve, Jason and Grochowski, Julia and Gulley, Anton and Howarth, Jamie and Jacobs, Katrina and Janku-Capova, Lucie and Jeppson, Tamara and Langridge, Robert and Mallyon, Deirdre and Marx, Ray and Massiot, C{\´e}cile and Mathewson, Loren and Moore, Josephine and Nishikawa, Osamu and Pooley, Brent and Pyne, Alex and Savage, Martha K. and Schmitt, Doug and Taylor-Offord, Sam and Upton, Phaedra and Weaver, Konrad C. and Wiersberg, Thomas and Zimmer, Martin},
  title     = {Bedrock geology of DFDP-2B, central Alpine Fault, New Zealand},
  series = {New Zealand journal of geology and geophysics : an international journal of the geoscience of New Zealand, the Pacific Rim, and Antarctica ; NZJG},
  volume    = {60},
  journal   = {New Zealand journal of geology and geophysics : an international journal of the geoscience of New Zealand, the Pacific Rim, and Antarctica ; NZJG},
  number    = {4},
  publisher = {Taylor \& Francis},
  address   = {Abingdon},
  organization    = {DFDP-2 Sci Team},
  issn      = {0028-8306},
  doi       = {10.1080/00288306.2017.1375533},
  pages     = {497 -- 518},
  year      = {2017},
  abstract  = {During the second phase of the Alpine Fault, Deep Fault Drilling Project (DFDP) in the Whataroa River, South Westland, New Zealand, bedrock was encountered in the DFDP-2B borehole from 238.5-893.2 m Measured Depth (MD). Continuous sampling and meso- to microscale characterisation of whole rock cuttings established that, in sequence, the borehole sampled amphibolite facies, Torlesse Composite Terrane-derived schists, protomylonites and mylonites, terminating 200-400 m above an Alpine Fault Principal Slip Zone (PSZ) with a maximum dip of 62°. The most diagnostic structural features of increasing PSZ proximity were the occurrence of shear bands and reduction in mean quartz grain sizes. A change in composition to greater mica:quartz + feldspar, most markedly below c. 700 m MD, is inferred to result from either heterogeneous sampling or a change in lithology related to alteration. Major oxide variations suggest the fault-proximal Alpine Fault alteration zone, as previously defined in DFDP-1 core, was not sampled.},
  language  = {en}
}
@article{PochIstiqomahQuiricoetal.2020,
  author    = {Poch, Olivier and Istiqomah, Istiqomah and Quirico, Eric and Beck, Pierre and Schmitt, Bernard and Theul{\´e}, Patrice and Faure, Alexandre and Hily-Blant, Pierre and Bonal, Lydie and Kappel, David},
  title     = {Ammonium salts are a reservoir of nitrogen on a cometary nucleus and possibly on some asteroids},
  series = {Science},
  volume    = {367},
  journal   = {Science},
  number    = {6483},
  publisher = {AAAS, American Association for the Advancement of Science},
  address   = {Washington, DC},
  issn      = {1095-9203},
  doi       = {10.1126/science.aaw7462},
  pages     = {1 -- 8},
  year      = {2020},
  abstract  = {The measured nitrogen-to-carbon ratio in comets is lower than for the Sun, a discrepancy which could be alleviated if there is an unknown reservoir of nitrogen in comets. The nucleus of comet 67P/Churyumov-Gerasimenko exhibits an unidentified broad spectral reflectance feature around 3.2 micrometers, which is ubiquitous across its surface. On the basis of laboratory experiments, we attribute this absorption band to ammonium salts mixed with dust on the surface. The depth of the band indicates that semivolatile ammonium salts are a substantial reservoir of nitrogen in the comet, potentially dominating over refractory organic matter and more volatile species. Similar absorption features appear in the spectra of some asteroids, implying a compositional link between asteroids, comets, and the parent interstellar cloud.},
  language  = {en}
}
@misc{PochIstiqomahQuiricoetal.2020,
  author    = {Poch, Olivier and Istiqomah, Istiqomah and Quirico, Eric and Beck, Pierre and Schmitt, Bernard and Theul{\´e}, Patrice and Faure, Alexandre and Hily-Blant, Pierre and Bonal, Lydie and Kappel, David},
  title     = {Ammonium salts are a reservoir of nitrogen on a cometary nucleus and possibly on some asteroids},
  series = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe},
  journal   = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe},
  number    = {6483},
  issn      = {1866-8372},
  doi       = {10.25932/publishup-51375},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-513751},
  pages     = {10},
  year      = {2020},
  abstract  = {The measured nitrogen-to-carbon ratio in comets is lower than for the Sun, a discrepancy which could be alleviated if there is an unknown reservoir of nitrogen in comets. The nucleus of comet 67P/Churyumov-Gerasimenko exhibits an unidentified broad spectral reflectance feature around 3.2 micrometers, which is ubiquitous across its surface. On the basis of laboratory experiments, we attribute this absorption band to ammonium salts mixed with dust on the surface. The depth of the band indicates that semivolatile ammonium salts are a substantial reservoir of nitrogen in the comet, potentially dominating over refractory organic matter and more volatile species. Similar absorption features appear in the spectra of some asteroids, implying a compositional link between asteroids, comets, and the parent interstellar cloud.},
  language  = {en}
}