S
Sara Magrin
Researcher at University of Padua
Publications - 60
Citations - 2751
Sara Magrin is an academic researcher from University of Padua. The author has contributed to research in topics: Asteroid & Comet. The author has an hindex of 24, co-authored 60 publications receiving 2496 citations. Previous affiliations of Sara Magrin include University of Maryland, College Park.
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Journal ArticleDOI
On the nucleus structure and activity of comet 67P/Churyumov-Gerasimenko
Holger Sierks,Cesare Barbieri,Philippe Lamy,Rafael Rodrigo,Rafael Rodrigo,Detlef Koschny,Hans Rickman,H. U. Keller,H. U. Keller,Jessica Agarwal,Michael F. A'Hearn,Michael F. A'Hearn,Francesco Angrilli,A.-T. Auger,M. Antonella Barucci,Jean-Loup Bertaux,Ivano Bertini,Sebastien Besse,Dennis Bodewits,Claire Capanna,Gabriele Cremonese,Vania Da Deppo,Bjö Davidsson,Stefano Debei,Mariolino De Cecco,Francesca Ferri,Sonia Fornasier,Marco Fulle,Robert Gaskell,Lorenza Giacomini,Olivier Groussin,P. Gutierrez-Marques,Pedro J. Gutiérrez,Carsten Güttler,N. M. Hoekzema,Stubbe F. Hviid,Stubbe F. Hviid,Wing-Huen Ip,Wing-Huen Ip,Laurent Jorda,Jörg Knollenberg,Gábor L. Kovács,J. Rainer Kramm,Ekkehard Kührt,Michael Küppers,Fiorangela La Forgia,Luisa Lara,Monica Lazzarin,C. Leyrat,Jose J. Lopez Moreno,Sara Magrin,Simone Marchi,Francesco Marzari,Matteo Massironi,Harald Michalik,Richard Moissl,Stefano Mottola,Giampiero Naletto,Nilda Oklay,Maurizio Pajola,Marco Pertile,Frank Preusker,L. Sabau,Frank Scholten,Colin Snodgrass,Nicolas Thomas,Cecilia Tubiana,Jean-Baptiste Vincent,Klaus Peter Wenzel,Mirco Zaccariotto,Martin Pätzold +70 more
TL;DR: Images from the OSIRIS scientific imaging system onboard Rosetta show that the nucleus of 67P/Churyumov-Gerasimenko consists of two lobes connected by a short neck, which raises the question of whether the two Lobes represent a contact binary formed 4.5 billion years ago, or a single body where a gap has evolved via mass loss.
Journal ArticleDOI
The morphological diversity of comet 67P/Churyumov-Gerasimenko
Nicolas Thomas,Holger Sierks,Cesare Barbieri,Philippe Lamy,Rafael Rodrigo,Hans Rickman,Detlef Koschny,H. U. Keller,H. U. Keller,Jessica Agarwal,Michael F. A'Hearn,Francesco Angrilli,A.-T. Auger,M. Antonella Barucci,Jean-Loup Bertaux,Ivano Bertini,Sebastien Besse,Dennis Bodewits,Gabriele Cremonese,Vania Da Deppo,B. J. R. Davidsson,Mariolino De Cecco,Stefano Debei,Mohamed Ramy El-Maarry,Francesca Ferri,Sonia Fornasier,Marco Fulle,Lorenza Giacomini,Olivier Groussin,Pedro J. Gutiérrez,Carsten Güttler,Stubbe F. Hviid,Wing-Huen Ip,Laurent Jorda,J. Knollenberg,J. Rainer Kramm,Ekkehard Kührt,Michael Küppers,Fiorangela La Forgia,Luisa Lara,Monica Lazzarin,Jose J. Lopez Moreno,Sara Magrin,Simone Marchi,Francesco Marzari,Matteo Massironi,Harald Michalik,Richard Moissl,Stefano Mottola,Giampiero Naletto,Nilda Oklay,Maurizio Pajola,Antoine Pommerol,Frank Preusker,L. Sabau,Frank Scholten,Colin Snodgrass,Cecilia Tubiana,Jean-Baptiste Vincent,K. P. Wenzel +59 more
TL;DR: Images of comet 67P/Churyumov-Gerasimenko acquired by the OSIRIS imaging system onboard the European Space Agency’s Rosetta spacecraft offer some support for subsurface fluidization models and mass loss through the ejection of large chunks of material.
Journal ArticleDOI
Images of Asteroid 21 Lutetia: A Remnant Planetesimal from the Early Solar System
Holger Sierks,Philippe Lamy,Cesare Barbieri,Detlef Koschny,Hans Rickman,Hans Rickman,Rafael Rodrigo,M. F. A'Hearn,Francesco Angrilli,M. A. Barucci,J. L. Bertaux,Ivano Bertini,Sebastien Besse,Benoit Carry,Gabriele Cremonese,V. Da Deppo,B. J. R. Davidsson,Stefano Debei,M. De Cecco,J. de León,Francesca Ferri,Sonia Fornasier,Sonia Fornasier,Marco Fulle,Stubbe F. Hviid,Robert Gaskell,Olivier Groussin,P. J. Gutiérrez,Wing-Huen Ip,Laurent Jorda,Mikko Kaasalainen,Horst Uwe Keller,Jörg Knollenberg,R. Kramm,Ekkehard Kührt,Michael Küppers,Luisa Lara,Monica Lazzarin,C. Leyrat,J. J. Lopez Moreno,Sara Magrin,Simone Marchi,Simone Marchi,Francesco Marzari,Matteo Massironi,Harald Michalik,Richard Moissl,Giampiero Naletto,F. Preusker,L. Sabau,W. Sabolo,Frank Scholten,Colin Snodgrass,Nicolas Thomas,Cecilia Tubiana,P. Vernazza,Jean-Baptiste Vincent,K. P. Wenzel,Thomas Andert,Martin Pätzold,Benjamin P. Weiss +60 more
TL;DR: A spacecraft flyby of an asteroid reveals a high-density body that is more like a planetesimal than a rubble pile, which contrasts with smaller asteroids visited by previous spacecraft, which are probably shattered bodies, fragments of larger parents, or reaccumulated rubble piles.
Journal ArticleDOI
Large heterogeneities in comet 67P as revealed by active pits from sinkhole collapse
Jean-Baptiste Vincent,Dennis Bodewits,Sebastien Besse,Holger Sierks,Cesare Barbieri,Philippe Lamy,Rafael Rodrigo,Rafael Rodrigo,Detlef Koschny,Hans Rickman,H. U. Keller,Jessica Agarwal,Michael F. A'Hearn,A.-T. Auger,M. Antonella Barucci,Jean-Loup Bertaux,Ivano Bertini,Claire Capanna,Gabriele Cremonese,Vania Da Deppo,B. J. R. Davidsson,Stefano Debei,Mariolino De Cecco,Mohamed Ramy El-Maarry,Francesca Ferri,Sonia Fornasier,Marco Fulle,Robert Gaskell,Lorenza Giacomini,Olivier Groussin,Aurelie Guilbert-Lepoutre,P. Gutierrez-Marques,Pedro J. Gutiérrez,Carsten Güttler,N. M. Hoekzema,S. Höfner,Stubbe F. Hviid,Wing-Huen Ip,Laurent Jorda,J. Knollenberg,Gábor L. Kovács,R. Kramm,Ekkehard Kührt,Michael Küppers,Fiorangela La Forgia,Luisa Lara,Monica Lazzarin,Vicky Lee,C. Leyrat,Zhong-Yi Lin,Jose J. Lopez Moreno,Stephen C. Lowry,Sara Magrin,Lucie Maquet,Simone Marchi,Francesco Marzari,Matteo Massironi,Harald Michalik,Richard Moissl,Stefano Mottola,Giampiero Naletto,Nilda Oklay,Maurizio Pajola,Frank Preusker,Frank Scholten,Nicolas Thomas,Imre Tóth,Cecilia Tubiana +67 more
TL;DR: It is reported that pits on comet 67P/Churyumov–Gerasimenko are active, and probably created by a sinkhole process, possibly accompanied by outbursts, and argued that after formation, pits expand slowly in diameter, owing to sublimation-driven retreat of the walls.
Journal ArticleDOI
Two independent and primitive envelopes of the bilobate nucleus of comet 67P
Matteo Massironi,Emanuele Simioni,Francesco Marzari,Gabriele Cremonese,Lorenza Giacomini,Maurizio Pajola,Laurent Jorda,Giampiero Naletto,Stephen C. Lowry,Mohamed Ramy El-Maarry,Frank Preusker,Frank Scholten,Holger Sierks,Cesare Barbieri,Philippe Lamy,Rafael Rodrigo,Rafael Rodrigo,Detlef Koschny,Hans Rickman,H. U. Keller,Michael F. A'Hearn,Jessica Agarwal,A.-T. Auger,M. Antonella Barucci,Jean-Loup Bertaux,Ivano Bertini,Sebastien Besse,Dennis Bodewits,Claire Capanna,Vania Da Deppo,Björn Davidsson,Stefano Debei,Mariolino De Cecco,Francesca Ferri,Sonia Fornasier,Marco Fulle,Robert Gaskell,Olivier Groussin,Pedro J. Gutiérrez,Carsten Güttler,Stubbe F. Hviid,Wing-Huen Ip,Jörg Knollenberg,Gábor L. Kovács,R. Kramm,Ekkehard Kührt,Michael Küppers,Fiorangela La Forgia,Luisa Lara,Monica Lazzarin,Zhong-Yi Lin,Jose J. Lopez Moreno,Sara Magrin,Harald Michalik,Stefano Mottola,Nilda Oklay,Antoine Pommerol,Nicolas Thomas,Cecilia Tubiana,Jean-Baptiste Vincent +59 more
TL;DR: The notable structural similarities between the two lobes of comet 67P/Churyumov–Gerasimenko indicate that the early-forming cometesimals experienced similar primordial stratified accretion, even though they formed independently.