Results 81 to 90 of about 22,266,209 (231)

A NEW ANALYSIS OF THE EXOPLANET HOSTING SYSTEM HD 6434 [PDF]

The Astronomical Journal, 2015
The current goal of exoplanetary science is not only focused on detecting but characterizing planetary systems in hopes of understanding how they formed, evolved, and relate to the Solar System. The Transit Ephemeris Refinement and Monitoring Survey (TERMS) combines both radial velocity (RV) and photometric data in order to achieve unprecedented ground-
Genady Pilyavsky, Stephen R. Kane, Tabetha S. Boyajian, David James, Natalie R. Hinkel, Natalie R. Hinkel, Debra A. Fischer, Dominique Naef, Stéphane Udry   +8 more
openaire   +3 more sources

Der Ursprung der Bausteine des Lebens auf der Erde im Hadaikum

Angewandte Chemie, Volume 137, Issue 42, October 13, 2025.
Der Ursprung des Lebens im Hadaikum erforderte die Bildung von Aminosäuren und Nukleosiden als Schlüsselmoleküle des Lebens. In einer oft postulierten stark reduzierenden Atmosphäre bilden sich HCN und seine Derivate robust als plausible Ausgangsstoffe. Aber HCN bildet sich nicht in der schwach reduzierenden Atmosphäre des Hadaikums.
Nikolai Diukarev, Erik Boinowitz, Jonas Feldmann, Stefan Wiedemann, Aleksandr Mikheev, Sidney Becker, Thomas Carell   +6 more
wiley   +1 more source

ExELS: an exoplanet legacy science proposal for the ESA Euclid mission - II. Hot exoplanets and sub-stellar systems [PDF]

, 2014
The Exoplanet Euclid Legacy Survey (ExELS) proposes to determine the frequency of cold exoplanets down to Earth mass from host separations of ∼1 au out to the free-floating regime by detecting microlensing events in Galactic bulge. We show that ExELS can
I. McDonald, E. Kerins, M. Penny, M. Penny, J. Beaulieu, V. Batista, S. Novati, A. Cassan, P. Fouqué, S. Mao, S. Mao, J. Marquette, N. Rattenbury, A. Robin, P. Tisserand, M. Z. Osorio   +15 more
semanticscholar   +1 more source

The Origin of the Feedstock Molecules for Life on the Hadean Earth

Angewandte Chemie International Edition, Volume 64, Issue 42, October 13, 2025.
The origin of life in the Hadean eon required the formation of amino acids and nucleosides among the key molecules of life. In an often postulated strongly reducing atmosphere, HCN and its derivatives are robustly formed as plausible starting molecules. But HCN does not form in a Hadean, weakly reducing atmosphere.
Nikolai Diukarev, Erik Boinowitz, Jonas Feldmann, Stefan Wiedemann, Aleksandr Mikheev, Sidney Becker, Thomas Carell   +6 more
wiley   +1 more source

Surrounded by Giants: Habitable Zone Stability Within the HD 141399 System

The Astronomical Journal, 2023
The search for exoplanets has revealed a diversity of planetary system architectures, the vast majority of which diverge significantly from the template of the solar system.
Stephen R. Kane
doaj   +1 more source

Toward Advancement of Fabrication Techniques of Neuromorphic Computing Devices Based on 2D Materials

Advanced Materials Technologies, Volume 10, Issue 20, October 20, 2025.
This review highlights emerging fabrication techniques of 2D material‐based neuromorphic devices, emphasizing proximity vapor transfer for bioinspired optoelectronic applications. Abstract The growing necessity for power‐efficient and cognitive computation mechanisms has driven progress in neuromorphic computing which seeks to imitate the synaptic ...
Shubham Umeshkumar Gupta, Malkeshkumar Patel, Naveen Kumar, László Pohl, Min‐Joon Park, Sung‐Min Youn, Chaewhan Jeong, Joondong Kim   +7 more
wiley   +1 more source

Relative habitability of exoplanet systems with two giant planets

Monthly Notices of the Royal Astronomical Society, 2022
ABSTRACT The architecture of a planetary system can influence the habitability of a planet via orbital effects, particularly in the areas of stability and eccentricity. Some of these effects are readily apparent, particularly when they occur on short time-scales that are easily numerically calculable.
Bailey, Nora, Fabrycky, Dan
openaire   +2 more sources

Tools for Learning—Promoting Reflection for Student Teachers' Development of PCK

Journal of Research in Science Teaching, Volume 62, Issue 8, Page 1902-1922, October 2025.
ABSTRACT This paper investigates how the coherent integration of three different tools for reflection during a science methods course can contribute to student teachers' planning and enactment of science teaching, that is, their development of pedagogical content knowledge (PCK).
Pernilla Nilsson, Anne‐Marie Cederqvist   +1 more
wiley   +1 more source

Three-dimensional Orbital Architectures and Detectability of Adjacent Companions to Hot Jupiters

The Astrophysical Journal
The orbital properties of the (as yet) small population of hot Jupiters with nearby planetary companions provide valuable constraints on the past migration processes of these systems.
Thomas MacLean, Juliette Becker
doaj   +1 more source

Disrupted Exoplanet Systems in the SuperWASP Archive [PDF]

, 2020
The aim of this research project has been to search for disrupted or disintegrating exoplanets; this search has been carried out using archival data from the Super-WASP (Wide Angle Search for Planets) transit photometry detection programme. The main aim of the archival search was to look for objects similar to Kepler-1520b (Rappaport et al., 2012) and ...
openaire   +1 more source