Results 51 to 60 of about 85 (81)

Review and Prospects of Hot Exozodiacal Dust Research For Future Exo-Earth Direct Imaging Missions

Publications of the Astronomical Society of the Pacific
Abstract Hot exozodiacal dust is dust in the innermost regions of planetary systems, at temperatures around 1000 K–2000 K, and commonly detected by near-infrared interferometry. The phenomenon is poorly understood and has received renewed attention as a potential risk to a planned future space mission to image potentially habitable ...
Steve Ertel, Tim D. Pearce, John H. Debes, Virginie C. Faramaz, William C. Danchi, Ramya M. Anche, Denis Defrère, Yasuhiro Hasegawa, Justin Hom, Florian Kirchschlager, Isabel Rebollido, Hélène Rousseau, Jeremy Scott, Karl Stapelfeldt, Thomas A. Stuber   +14 more
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Infrared Detection and Characterization of Debris Disks, Exozodiacal Dust, and Exoplanets: The FKSI Mission Concept

, 2009
The Fourier-Kelvin Stellar Interferometer (FKSI) is a mission concept for a nulling interferometer for the near-to-mid-infrared spectral region. FKSI is conceived as a mid-sized strategic or Probe class mission. FKSI has been endorsed by the Exoplanet Community Forum 2008 as such a mission and has been costed to be within the expected budget.
Danchi, W. C., Barry, R. K., Lopez, B., Rinehart, S. A., Absil, Olivier, Augereau, J., Beust, H., Bonfils, X., Bordé, P., Defrere, Denis, Kern, P., Lawson, P. R., Léger, A., Monin, J., Mourard, D., Ollivier, M., Petrov, R., Traub, W. A., Unwin, S. C., Vakili, F.   +19 more
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Exozodiacal dust as a limitation to exoplanet imaging and spectroscopy

In addition to planets and other small bodies, stellar systems will likely also host exozodiacal dust, or exozodi. This warm dust primarily resides in or near the habitable zone of a star, and scatters stellar light in visible to NIR wavelengths, possibly acting as a spatially inhomogeneous fog that can impede our ability to detect and characterize ...
Currie, Miles H., Debes, John, Hasegawa, Yasuhiro, Rebollido, Isabel, Faramaz, Virginie, Ertel, Steve, Danchi, William, Mennesson, Bertrand, Wyatt, Mark, Members, NASA SAG23   +9 more
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Exoplanet Biosignatures: Understanding Oxygen as a Biosignature in the Context of Its Environment. [PDF]

Astrobiology, 2018
Meadows VS, Reinhard CT, Arney GN, Parenteau MN, Schwieterman EW, Domagal-Goldman SD, Lincowski AP, Stapelfeldt KR, Rauer H, DasSarma S, Hegde S, Narita N, Deitrick R, Lustig-Yaeger J, Lyons TW, Siegler N, Grenfell JL.   +16 more
europepmc   +1 more source

Exoplanet Biosignatures: A Review of Remotely Detectable Signs of Life. [PDF]

Astrobiology, 2018
Schwieterman EW, Kiang NY, Parenteau MN, Harman CE, DasSarma S, Fisher TM, Arney GN, Hartnett HE, Reinhard CT, Olson SL, Meadows VS, Cockell CS, Walker SI, Grenfell JL, Hegde S, Rugheimer S, Hu R, Lyons TW.   +17 more
europepmc   +1 more source

The Habitability of Proxima Centauri b: Environmental States and Observational Discriminants. [PDF]

Astrobiology, 2018
Meadows VS, Arney GN, Schwieterman EW, Lustig-Yaeger J, Lincowski AP, Robinson T, Domagal-Goldman SD, Deitrick R, Barnes RK, Fleming DP, Luger R, Driscoll PE, Quinn TR, Crisp D.   +13 more
europepmc   +1 more source

The Origins & Reservoirs of Exocomets. [PDF]

Space Sci Rev
Bannister M, Pfalzner S, Pearce T, Mustill AJ, Klahr H, Nomura H, Ohashi N, Kokotanekova R, Marino S, Bodewits D, Marschall R, Seligman DZ, Jones GH, Veras D.   +13 more
europepmc   +1 more source

Detection of exozodiacal dust: a step toward Earth-like planet characterization with infrared interferometry

, 2009
The existence of other habitable worlds and the possible development of life elsewhere in the Universe have been among mankind's fundamental questions for thousands of years. These interrogations about our origins and place in the Universe are today at the dawn of being answered in scientific terms. The key year was 1995 with the discovery of the first
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Optimization of thermal background suppression through Principal Component Analysis: Application to nulling interferometric observations of warm exozodiacal dust

In the mid-infrared, in particular in the N-band (11 $\mu$m), the thermal background is a major limit to the data's sensitivity and a challenge to the extraction of relevant information. In fact, the thermal background can even outshine the star, let alone circumstellar emissions.
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Exozodiacal dust

2001
Besides the sun, the most luminous feature of the solar system is a cloud of "zodiacal" dust released by asteroids and comets that pervades the region interior to the asteroid belt. Similar clouds of dust around other stars—exozodiacal clouds—may be the best tracers of the habitable zones of extra-solar planetary systems.
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