Results 41 to 50 of about 85 (81)

Detecting Exoplanets in the Presence of Exozodiacal Dust Profiles

, 2010
Presented at the American Astronomical Society meeting, January 2010, Washington ...
Noecker, Charley, Kuchner, Marc
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The short-lived production of exozodiacal dust in the aftermath of a dynamical instability in planetary systems [PDF]

Monthly Notices of the Royal Astronomical Society, 2013
Excess emission, associated with warm, dust belts, commonly known as exozodis, has been observed around a third of nearby stars. The high levels of dust required to explain the observations are not generally consistent with steady-state evolution. A common suggestion is that the dust results from the aftermath of a dynamical instability, an event akin ...
Bonsor, Amy, Raymond, Sean N., Augereau, Jean-Charles   +2 more
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First L band detection of hot exozodiacal dust with VLTI/MATISSE

, 2020
For the first time we observed the emission of hot exozodiacal dust in L band. We used the new instrument MATISSE at the VLTI to detect the hot dust around ? Tuc at wavelengths between 3.37 ?m and 3.85 ?m. The dust-to-star flux ratio in L band amounts to 5 to 7 % and the spectral slope is ? = 3.92.
Kirchschlager, Florian, Ertel, Steve, Wolf, Sebastian, Matter, Alexis, Krivov, Alexander   +4 more
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An Unbiased Near-infrared Interferometric Survey for Hot Exozodiacal Dust

, 2015
Exozodiacal dust is warm or hot dust found in the inner regions of planetary systems orbiting main sequence stars, in or around their habitable zones. The dust can be the most luminous component of extrasolar planetary systems, but predominantly emits in the near- to mid-infrared where it is outshone by the host star.
Ertel, S., Augereau, J.-C., Absil, Olivier, Defrere, Denis, Le Bouquin, J.-B., Marion, Lindsay, Bonsor, A., Lebreton, J.   +7 more
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Imaging low-mass planets within the habitable zone of α Centauri. [PDF]

Nat Commun, 2021
Wagner K, Boehle A, Pathak P, Kasper M, Arsenault R, Jakob G, Käufl U, Leveratto S, Maire AL, Pantin E, Siebenmorgen R, Zins G, Absil O, Ageorges N, Apai D, Carlotti A, Choquet É, Delacroix C, Dohlen K, Duhoux P, Forsberg P, Fuenteseca E, Gutruf S, Guyon O, Huby E, Kampf D, Karlsson M, Kervella P, Kirchbauer JP, Klupar P, Kolb J, Mawet D, N'Diaye M, Orban de Xivry G, Quanz SP, Reutlinger A, Ruane G, Riquelme M, Soenke C, Sterzik M, Vigan A, de Zeeuw T.   +41 more
europepmc   +1 more source

Future Exploration of the Outer Heliosphere and Very Local Interstellar Medium by Interstellar Probe. [PDF]

Space Sci Rev, 2023
Brandt PC, Provornikova E, Bale SD, Cocoros A, DeMajistre R, Dialynas K, Elliott HA, Eriksson S, Fields B, Galli A, Hill ME, Horanyi M, Horbury T, Hunziker S, Kollmann P, Kinnison J, Fountain G, Krimigis SM, Kurth WS, Linsky J, Lisse CM, Mandt KE, Magnes W, McNutt RL, Miller J, Moebius E, Mostafavi P, Opher M, Paxton L, Plaschke F, Poppe AR, Roelof EC, Runyon K, Redfield S, Schwadron N, Sterken V, Swaczyna P, Szalay J, Turner D, Vannier H, Wimmer-Schweingruber R, Wurz P, Zirnstein EJ.   +42 more
europepmc   +1 more source

Adaptive and Dynamically Constrained Process Noise Estimation for Orbit Determination. [PDF]

IEEE Trans Aerosp Electron Syst, 2021
Stacey N, D'Amico S.
europepmc   +1 more source

Scalable photonic-based nulling interferometry with the dispersed multi-baseline GLINT instrument. [PDF]

Nat Commun, 2021
Martinod MA, Norris B, Tuthill P, Lagadec T, Jovanovic N, Cvetojevic N, Gross S, Arriola A, Gretzinger T, Withford MJ, Guyon O, Lozi J, Vievard S, Deo V, Lawrence JS, Leon-Saval S.   +15 more
europepmc   +1 more source

Unveiling habitable planets: toy coronagraph tackles the exozodiacal dust challenge

Optical Modeling and Performance Predictions XIV
Directly imaging Earth-like exoplanets within habitable zones is challenging because faint signals can be obscured by exozodiacal dust, analogous to our solar system's zodiacal dust. This dust scatters starlight, creating a bright background noise. This paper introduces Toy Coronagraph, a Python package designed to quantify the impact of this dust on ...
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Search for Exozodiacal Dust: Are Vega-like Stars Common ?

Search for Exozodiacal Dust: Are Vega-like Stars Common ?
Possible observations of Vega-like stars by the ASTRO-F and the HII/L2 3.5m space telescope are proposed. Vega-like stars are main sequence stars with mid-infrared and/or far-infrared excess. A few of these stars have been observed precisely at various wavelengths and it was found out that they tend to have hot (～300K) circumstellar dust like the ...
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