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Atmospheric escape from the TRAPPIST-1 planets and implications for habitability
Significance The search for exoplanets has rapidly emerged as one of the most important endeavors in astronomy. This field received a major impetus with the recent discovery of seven temperateExpand
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Is Proxima Centauri b habitable? -- A study of atmospheric loss
We address the important question of whether the newly discovered exoplanet, Proxima Centauri b (PCb), is capable of retaining an atmosphere over long periods of time. This is done by adapting aExpand
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Modeling Martian Atmospheric Losses over Time: Implications for Exoplanetary Climate Evolution and Habitability
In this Letter, we make use of sophisticated 3D numerical simulations to assess the extent of atmospheric ion and photochemical losses from Mars over time. We demonstrate that the atmospheric ionExpand
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Optimal Target Stars in the Search for Life
The selection of optimal targets in the search for life represents a highly important strategic issue. In this paper, we evaluate the relative benefits of searching for life around a potentiallyExpand
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Enhanced interplanetary panspermia in the TRAPPIST-1 system
  • M. Lingam, A. Loeb
  • Physics, Medicine
  • Proceedings of the National Academy of Sciences
  • 2 March 2017
Significance The search for extraterrestrial life is one of the most exciting frontiers in present-day astronomy. Recently, the TRAPPIST-1 star was discovered to host seven rocky planets with massesExpand
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Is Life Most Likely Around Sun-like Stars?
We consider the habitability of Earth-analogs around stars of different masses, which is regulated by the stellar lifetime, stellar wind-induced atmospheric erosion, and biologically activeExpand
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Subsurface exolife
Abstract We study the prospects for life on planets with subsurface oceans, and find that a wide range of planets can exist in diverse habitats with ice envelopes of moderate thickness. We quantifyExpand
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Multi-fluid systems—Multi-Beltrami relaxed states and their implications
We consider the non-dissipative multi-fluid equations, and demonstrate how multi-Beltrami equilibria emerge as natural relaxed states of the model, representing an evolution towards the minimumExpand
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Plasmoid Instability in Forming Current Sheets
The plasmoid instability has revolutionized our understanding of magnetic reconnection in astrophysical environments. By preventing the formation of highly elongated reconnection layers, it isExpand
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General Theory of the Plasmoid Instability
A general theory of the onset and development of the plasmoid instability is formulated by means of a principle of least time. The scaling relations for the final aspect ratio, transition time toExpand
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