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Ejecta from the DAR...
Ejecta from the DART-produced active asteroid Dimorphos
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- Li, Jian-Yang (författare)
- Planetary Science Institute, Tucson, AZ, USA
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- Hirabayashi, Masatoshi (författare)
- Department of Aerospace Engineering, Department of Geosciences, Auburn University, Auburn, AL, USA
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- Farnham, Tony L. (författare)
- Department of Astronomy, University of Maryland, College Park, MD, USA
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visa fler...
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- Sunshine, Jessica M. (författare)
- Department of Astronomy, University of Maryland, College Park, MD, USA
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- Knight, Matthew M. (författare)
- Physics Department, United States Naval Academy, Annapolis, MD, USA
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- Tancredi, Gonzalo (författare)
- Departamento de Astronomía, Facultad de Ciencias, Udelar, Uruguay
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- Moreno, Fernando (författare)
- Instituto de Astrofísica de Andalucía, CSIC, Granada, Spain
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- Murphy, Brian (författare)
- University of Edinburgh, Royal Observatory, Edinburgh, UK
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- Opitom, Cyrielle (författare)
- University of Edinburgh, Royal Observatory, Edinburgh, UK
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- Chesley, Steve (författare)
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
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- Scheeres, Daniel J. (författare)
- Aerospace Engineering Sciences, Colorado Center for Astrodynamics Research, University of Colorado, Boulder, CO, USA
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- Thomas, Cristina A. (författare)
- Northern Arizona University, Flagstaff, AZ, USA
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- Fahnestock, Eugene G. (författare)
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
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- Cheng, Andrew F. (författare)
- Applied Physics Laboratory, Johns Hopkins University, Laurel, MD, USA
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- Dressel, Linda (författare)
- Space Telescope Science Institute, Baltimore, MD, USA
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- Ernst, Carolyn M. (författare)
- Applied Physics Laboratory, Johns Hopkins University, Laurel, MD, USA
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- Ferrari, Fabio (författare)
- Department of Aerospace Science and Technology, Politecnico di Milano, Milan, Italy
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- Fitzsimmons, Alan (författare)
- School of Mathematics and Physics, Queen’s University Belfast, Belfast, UK
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- Ieva, Simone (författare)
- INAF - Osservatorio Astronomico di Roma, Rome, Italy
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- Ivanovski, Stavro L. (författare)
- INAF Osservatorio Astronomico di Trieste, Trieste, Italy
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- Kareta, Theodore (författare)
- Lowell Observatory, Flagstaff, AZ, USA; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA
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- Kolokolova, Ludmilla (författare)
- Department of Astronomy, University of Maryland, College Park, MD, USA
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- Lister, Tim (författare)
- Las Cumbres Observatory, Goleta, CA, USA
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- Raducan, Sabina D. (författare)
- Space Research and Planetary Sciences, Physikalisches Institut, University of Bern, Bern, Switzerland
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- Rivkin, Andrew S. (författare)
- Applied Physics Laboratory, Johns Hopkins University, Laurel, MD, USA
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- Rossi, Alessandro (författare)
- IFAC-CNR, Florence, Italy
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- Soldini, Stefania (författare)
- Department of Mechanical, Materials and Aerospace Engineering, University of Liverpool, Liverpool, UK
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- Stickle, Angela M. (författare)
- Applied Physics Laboratory, Johns Hopkins University, Laurel, MD, USA
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- Vick, Alison (författare)
- Space Telescope Science Institute, Baltimore, MD, USA
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- Vincent, Jean-Baptiste (författare)
- DLR Institute of Planetary Research, Berlin, Germany
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- Weaver, Harold A. (författare)
- Applied Physics Laboratory, Johns Hopkins University, Laurel, MD, USA
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- Bagnulo, Stefano (författare)
- Armagh Observatory and Planetarium, Armagh, UK
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- Bannister, Michele T. (författare)
- School of Physical and Chemical Sciences, Te Kura Matū, University of Canterbury, Christchurch, New Zealand
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- Cambioni, Saverio (författare)
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
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- Campo Bagatin, Adriano (författare)
- Instituto de Física Aplicada a las Ciencias y las Tecnologías, Universidad de Alicante, Alicante, Spain; Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante, Alicante, Spain
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- Chabot, Nancy L. (författare)
- Applied Physics Laboratory, Johns Hopkins University, Laurel, MD, USA
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- Cremonese, Gabriele (författare)
- INAF Osservatorio Astronomico di Padova, Padua, Italy
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- Daly, R. Terik (författare)
- Applied Physics Laboratory, Johns Hopkins University, Laurel, MD, USA
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- Dotto, Elisabetta (författare)
- INAF - Osservatorio Astronomico di Roma, Rome, Italy
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- Glenar, David A. (författare)
- Center for Space Science and Technology, University of Maryland, Baltimore County, Baltimore, MD, USA; Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD, USA
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- Granvik, Mikael (författare)
- Luleå tekniska universitet,Rymdteknik,Department of Physics, University of Helsinki, Helsinki, Finland
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- Hasselmann, Pedro H. (författare)
- INAF - Osservatorio Astronomico di Roma, Rome, Italy
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- Herreros, Isabel (författare)
- Centro de Astrobiología (CAB), CSIC-INTA, Torrejón de Ardoz, Madrid, Spain
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- Jacobson, Seth (författare)
- Department of Earth and Environmental Sciences, Michigan State University, East Lansing, MI, USA
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- Jutzi, Martin (författare)
- Space Research and Planetary Sciences, Physikalisches Institut, University of Bern, Bern, Switzerland
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- Kohout, Tomas (författare)
- Institute of Geology of the Czech Academy of Sciences, Prague, Czech Republic; Department of Geosciences and Geography, University of Helsinki, Helsinki, Finland
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- La Forgia, Fiorangela (författare)
- Dipartimento di Fisica e, Astronomia-Padova University, Padua, Italy
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- Lazzarin, Monica (författare)
- Dipartimento di Fisica e, Astronomia-Padova University, Padua, Italy
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- Lin, Zhong-Yi (författare)
- Institute of Astronomy, National Central University, Taoyuan City, Taiwan
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- Lolachi, Ramin (författare)
- Center for Space Science and Technology, University of Maryland, Baltimore County, Baltimore, MD, USA; Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD, USA
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- Lucchetti, Alice (författare)
- INAF Osservatorio Astronomico di Padova, Padua, Italy
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- Makadia, Rahil (författare)
- Department of Aerospace Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
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- Mazzotta Epifani, Elena (författare)
- INAF - Osservatorio Astronomico di Roma, Rome, Italy
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- Michel, Patrick (författare)
- Laboratoire Lagrange, Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Nice, France
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- Migliorini, Alessandra (författare)
- INAF - Institute for Space Astrophysics and Planetology, Rome, Italy
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- Moskovitz, Nicholas A. (författare)
- Lowell Observatory, Flagstaff, AZ, USA
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- Ormö, Jens (författare)
- Centro de Astrobiología (CAB), CSIC-INTA, Torrejón de Ardoz, Madrid, Spain
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- Pajola, Maurizio (författare)
- INAF Osservatorio Astronomico di Padova, Padua, Italy
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- Sánchez, Paul (författare)
- Aerospace Engineering Sciences, Colorado Center for Astrodynamics Research, University of Colorado, Boulder, CO, USA
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- Schwartz, Stephen R. (författare)
- Planetary Science Institute, Tucson, AZ, USA
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- Snodgrass, Colin (författare)
- University of Edinburgh, Royal Observatory, Edinburgh, UK
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- Steckloff, Jordan (författare)
- Planetary Science Institute, Tucson, AZ, USA
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- Stubbs, Timothy J. (författare)
- Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD, USA
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- Trigo-Rodríguez, Josep M. (författare)
- Institute of Space Sciences (CSIC-IEEC), UAB Bellaterra, Barcelona, Spain
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(creator_code:org_t)
- 2023-03-01
- 2023
- Engelska.
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Ingår i: Nature. - : Springer Nature. - 0028-0836 .- 1476-4687. ; 616, s. 452-456
- Relaterad länk:
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https://doi.org/10.1...
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https://ltu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Some active asteroids have been proposed to be formed as a result of impact events1. Because active asteroids are generally discovered by chance only after their tails have fully formed, the process of how impact ejecta evolve into a tail has, to our knowledge, not been directly observed. The Double Asteroid Redirection Test (DART) mission of NASA2, in addition to having successfully changed the orbital period of Dimorphos3, demonstrated the activation process of an asteroid resulting from an impact under precisely known conditions. Here we report the observations of the DART impact ejecta with the Hubble Space Telescope from impact time T + 15 min to T + 18.5 days at spatial resolutions of around 2.1 km per pixel. Our observations reveal the complex evolution of the ejecta, which are first dominated by the gravitational interaction between the Didymos binary system and the ejected dust and subsequently by solar radiation pressure. The lowest-speed ejecta dispersed through a sustained tail that had a consistent morphology with previously observed asteroid tails thought to be produced by an impact4,5. The evolution of the ejecta after the controlled impact experiment of DART thus provides a framework for understanding the fundamental mechanisms that act on asteroids disrupted by a natural impact1,6.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- Onboard Space Systems
- Rymdtekniska system
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Li, Jian-Yang
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Hirabayashi, Mas ...
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Farnham, Tony L.
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Sunshine, Jessic ...
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Knight, Matthew ...
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Tancredi, Gonzal ...
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visa fler...
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Moreno, Fernando
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Murphy, Brian
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Opitom, Cyrielle
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Chesley, Steve
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Scheeres, Daniel ...
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Thomas, Cristina ...
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Fahnestock, Euge ...
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Cheng, Andrew F.
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Dressel, Linda
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Ernst, Carolyn M ...
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Ferrari, Fabio
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Fitzsimmons, Ala ...
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Ieva, Simone
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Ivanovski, Stavr ...
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Kareta, Theodore
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Kolokolova, Ludm ...
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Lister, Tim
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Raducan, Sabina ...
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Rivkin, Andrew S ...
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Rossi, Alessandr ...
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Soldini, Stefani ...
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Stickle, Angela ...
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Vick, Alison
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Vincent, Jean-Ba ...
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Weaver, Harold A ...
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Bagnulo, Stefano
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Bannister, Miche ...
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Cambioni, Saveri ...
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Campo Bagatin, A ...
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Chabot, Nancy L.
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Cremonese, Gabri ...
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Daly, R. Terik
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Dotto, Elisabett ...
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Glenar, David A.
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Granvik, Mikael
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Hasselmann, Pedr ...
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Herreros, Isabel
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Jacobson, Seth
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Jutzi, Martin
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Kohout, Tomas
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La Forgia, Fiora ...
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Lazzarin, Monica
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Lin, Zhong-Yi
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Lolachi, Ramin
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Lucchetti, Alice
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Makadia, Rahil
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Mazzotta Epifani ...
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Michel, Patrick
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Migliorini, Ales ...
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Moskovitz, Nicho ...
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Ormö, Jens
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Pajola, Maurizio
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Sánchez, Paul
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Schwartz, Stephe ...
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Snodgrass, Colin
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Steckloff, Jorda ...
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Stubbs, Timothy ...
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Trigo-Rodríguez, ...
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