Results 21 to 30 of about 7,182,538 (218)

Effect of Laboratory Reagents for Cleaning Modern Contamination on the δ¹⁵N Integrity of Nitrogen-Poor Samples. [PDF]

Rapid Commun Mass Spectrom
ABSTRACT Rationale Nitrogen isotope values have been widely used for tracing ancient biogeochemical processes, but contaminant‐sensitive materials, such as Precambrian sedimentary rocks, meteorites, or returned extraterrestrial samples, often have low nitrogen levels and are thus vulnerable to modern organic contamination.
Bubphamanee K, Schauer A, Buick R.
europepmc   +2 more sources

exoplanet-dev/exoplanet: exoplanet v0.4.5

, 2021
0.5.0 (2021-05-04) Adds high-level, pure-Theano/Aesara implementation of RegularGridInterpolator to replace compiled version #167 Moves compiled Ops to exoplanet-core making exoplanet a pure-Python package #171 Moves ReboundOp and ReboundOrbit to ...
emilygilbert, Dan Foreman-Mackey, Eric Agol, Christina Hedges, Tom Barclay, Ian Czekala, Luke Bouma, Rodrigo Luger, Adrian Price-Whelan, Timothy D Brandt, Arjun Savel   +10 more
core   +1 more source

Understanding exoplanet formation, structure and evolution in 2010 [PDF]

Proceedings of the International Astronomical Union, 2010
AbstractIn this short review, we summarize our present understanding (and non-understanding) of exoplanet formation, structure and evolution, in the light of the most recent discoveries. Recent observations of transiting massive brown dwarfs seem to remarkably confirm the predicted theoretical mass-radius relationship in this domain.
G. Chabrier, J. Leconte, and I. Baraffe
openaire   +2 more sources

Exoplanet imaging data challenge: benchmarking the various image processing methods for exoplanet detection [PDF]

, 2020
The Exoplanet Imaging Data Challenge is a community-wide effort meant to offer a platform for a fair and common comparison of image processing methods designed for exoplanet direct detection. For this purpose, it gathers on a dedicated repository (Zenodo)
Desgrange, Célia, Schreiber, Laura, Bonse, M. J., Bonse, Markus Johannes, Fuhrmann, T., Cantalloube, Faustine, Dino Mesa, Kenworthy, M., Samland, Matthias, Nasedkin, E., Ruffio, J.-B., Henning, Th., Tiffany Meshkat, Bonse, Markus, Jensen-Clem, R., André Müller, Sébastien Piérard, Schmidt, Dirk, Marc Van Droogenbroeck, Michael Bottom, Regis Bacher, Henning, Thomas H., Flasseur, O., Adaptive Optics Systems VII, Kenworthy, Matthew, Jean-Baptiste Ruffio, Bottom, Michael, Desgrange, C., Célia Desgrange, Mawet, D., Absil, Olivier, Pairet, Benoit, Müller, Andreas, Cantero Mitjans, Carles, Markus Bonse, Benoit Pairet, Bottom, M., Müller, A., Bacher, Raphael, Van Droogenbroeck, Marc, Stone, Jordan, Stone, J., Fuhrmann, Thomas, Mouillet, David, Samland, M., Flasseur, Olivier, Cantero, Carles, Henning, Thomas, Jensen-Clem, Rebecca, Ruffio, Jean-Baptiste, Piérard, Sébastien, Müller, André, Mouillet, D., Meshkat, T., Mesa, Dino, Vernet, Elise, Gomez Gonzalez, Carlos, Olivier Absil, Carles Cantero, Meshkat, Tiffany, Pairet, B., Cantalloube, F., Mesa, D., Bacher, Regis, Carl-Henrik Dahlqvist, Matthias Samland, Thomas H. Henning, Gomez-Gonzalez, Carlos, Dahlqvist, Carl-Henrik, Faustine Cantalloube, Matthew Kenworthy, Bacher, R., Nasedkin, Evert, Carlos Gomez-Gonzalez, Olivier Flasseur, Thomas Fuhrmann, Rebecca Jensen-Clem, Evert Nasedkin, Dimitri Mawet, Mawet, Dimitri, Jordan Stone, David Mouillet   +81 more
core   +1 more source

Correlations between the stellar, planetary, and debris components of exoplanet systems observed by Herschel [PDF]

, 2014
J.P.M., C.E., J.M. and B.M. are partially supported by Spanish grant AYA 2011-26202. This work was supported by the European Union through ERC grant number no.
Lestrade, J.-F., Olofsson, G., G. Olofsson, G. Bryden, C. Eiroa, Horner, J., Eiroa, C., J. Sanz-Forcada, Meeus, G., Pilbratt, G.L., Moro-Martin, Amaya, Lestrade, J. -F., Meeus, Gwendolyn, White, G.J., Olofsson, Goran, Kennedy, G., Ivison, R. J., A. Moro-Martín, Sanz-Forcada, J., Wyatt, M.C., G. Meeus, Lestrade, J-E, J. P. Marshall, Ivison, Robert J., Marshall, J.P., Greaves, J. S., J. S. Greaves, Eiroa, Carlos, J. Horner, Greaves, J.S., G. Kennedy, Maldonado, J., R. J. Ivison, Sibthorpe, B., White, Glenn J., Wyatt, Mark C., Wyatt, M. C., Matthews, B., Del Burgo, C., Moro-Martín, A., Montesinos, B., Kennedy, G. M., J.-F. Lestrade, del Burgo, Carlos, J. Maldonado, Pilbratt, G. L., Olofsson, Göran,, Bryden, G., B. Sibthorpe, Marshall, J. P., Forcada, Jorge Sanz, White, G. J., Mora, A., B. Matthews, B. Montesinos, Maldonado, Jesús, C. del Burgo, Ivison, R.J., G. L. Pilbratt, M. C. Wyatt, Lestrade, Jean-François, Matthews, B. C., A. Mora, G. J. White, Horner, Jonathan, Lestrade J, Wyatt MC, Ivison RJ, Eiroa C, Olofsson G, White GJ, Marshall JP, del Burgo C, Kennedy G, Maldonado J, Meeus G, Matthews B, Bryden G, Sibthorpe B, Montesinos B, Sanz-Forcada J, Pilbratt GL, Horner J, Mora A, Greaves JS, Moro-Martín A   +85 more
core   +1 more source

astrozeng/exoplanet: Exoplanet mass-radius plotting and analyzing tool

, 2022
This is a Mathematica plotting tool developed to plot the exoplanet data in mass-radius diagram, and the relevant histograms (mass-histogram, radius-histogram, and \zeta-histogram).
astrozeng
core   +1 more source

The Unistellar Exoplanet Campaign: Citizen Science Results and Inherent Education Opportunities [PDF]

, 2023
This paper presents early results from and prospects for exoplanet science using a citizen science private/public partnership observer network managed by the SETI Institute in collaboration with Unistellar.
Unistellar Citizen Scientists,, Carter, Bradley, Esposito, Thomas M., Megowan-Romanowicz, Colleen, Sgro, Lauren, Wright, Duncan, Avsar, Arin M., Dalba, Paul A., O’Conner Peluso, Daniel, Perrocheau, Amaury, Pennypacker, Carl, Marchis, Franck   +11 more
core   +2 more sources

Mineralogy, Structure, and Habitability of Carbon-Enriched Rocky Exoplanets: A Laboratory Approach [PDF]

Astrobiology, 2019
Carbon-enriched rocky exoplanets have been proposed around dwarf stars as well as around binary stars, white dwarfs and pulsars. However, the mineralogical make up of such planets is poorly constrained. We performed high-pressure high-temperature laboratory experiments ($P$ = 1$-$2 GPa, $T$ = 1523$-$1823 K) on carbon-enriched chemical mixtures to ...
Hakim, K., Spaargaren, R., Grewal, D.S., Rohrbach, A., Berndt, J., Dominik, C., van Westrenen, W.   +6 more
openaire   +6 more sources

The Structure of Exoplanets

, 2013
The hundreds of exoplanets that have been discovered in the past two decades offer a new perspective on planetary structure. Instead of being the archetypal examples of planets, those of our Solar System are merely possible outcomes of planetary system formation and evolution, and conceivably not even terribly common outcomes (although this remains an ...
Spiegel, David S., Fortney, Jonathan J., Sotin, Christophe   +2 more
openaire   +2 more sources

Enhanced constraints on the interior composition and structure of terrestrial exoplanets [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
Exoplanet interior modelling usually makes the assumption that the elemental abundances of a planet are identical to those of its host star. Host stellar abundances are good proxies of planetary abundances, but only for refractory elements. This is particularly true for terrestrial planets, as evidenced by the relative differences in bulk chemical ...
H S Wang, F Liu, T R Ireland, R Brasser, D Yong, C H Lineweaver   +5 more
openaire   +5 more sources