Results 21 to 30 of about 1,757 (195)
Giant Exoplanets around M-dwarf Stars (GEMS)
, 2023 In this presentation, we describe the new Giant Exoplanets around M dwarf Stars (GEMS) survey initiated to to understand giant planets transiting around M dwarf stars. This survey will try to understand giant planet formation, by shedding light on big planets around small stars.
Kanodia, Shubham, GEMS Team
openaire +1 more source
M-dwarf binaries as tracers of star and brown dwarf formation [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 accepted for publication in MNRAS; 13 pages; 7 figures; 1 table;
Marks, Michael +4 more
openaire +2 more sources
Stellar Characterization and Radius Inflation of Hyades M-dwarf Stars from the APOGEE Survey
The Astrophysical Journal, 2023 We present a spectroscopic analysis of a sample of 48 M-dwarf stars (0.2 M _⊙ < M < 0.6 M _⊙ ) from the Hyades open cluster using high-resolution H -band spectra from the Sloan Digital Sky Survey/Apache Point Observatory Galactic Evolution Experiment ...
Fábio Wanderley +25 more
doaj +1 more source
Detection of Young Massive White Dwarfs in Core-collapsed Globular Cluster NGC 362
The Astrophysical Journal LettersCore-collapsed globular clusters are ideal targets to explore the presence of stellar collision products. Here, we have studied 17 far-UV bright white dwarf (WD) members in the globular cluster NGC 362 using data obtained from the Ultra Violet Imaging ...
R. K. S. Yadav +4 more
doaj +1 more source
THE ULTRAVIOLET RADIATION ENVIRONMENT AROUND M DWARF EXOPLANET HOST STARS [PDF]
The Astrophysical Journal, 2013 The spectral and temporal behavior of exoplanet host stars is a critical input to models of the chemistry and evolution of planetary atmospheres. At present, little observational or theoretical basis exists for understanding the ultraviolet spectra of M dwarfs, despite their critical importance to predicting and interpreting the spectra of potentially ...
France, Kevin +10 more
openaire +4 more sources
Advanced Engineering Materials, EarlyView.This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff +9 more
wiley +1 more source
Overestimated Pressure Broadening Misleads Model Spectra in Cool M Dwarf Stars
The Astrophysical Journal LettersAvailable one-dimensional stellar models fail to reproduce the observed spectrum of the ultracool M dwarf TRAPPIST-1. In particular, current models predict strong iron hydride (FeH) absorption due to the Wing–Ford bands at 0.99 μ m, yet this spectral ...
Ana Glidden +3 more
doaj +1 more source
Engineering Unequal Antipolar Displacement in Ferromagnetic Layered Oxide Heterostructures
Advanced Materials, EarlyView.Atomically precise superlattices of the double perovskites La2NiMnO6 and Sm2NiMnO6 are grown to engineer an unequal antipolar displacement of the La and Sm ions. These structural motifs are confirmed by the scanning transmission electron microscopy and first‐principles calculations.
Jonathan Spring +8 more
wiley +1 more source
The Astrophysical JournalThe chemical abundance measurements of host stars and their substellar companions provide a powerful tool to trace the formation mechanism of the planetary systems.
Neda Hejazi +7 more
doaj +1 more source
Generative Models for Crystalline Materials
Advanced Materials, EarlyView.Generative machine learning models are increasingly used in crystalline materials design. This review outlines major generative approaches and assesses their strengths and limitations. It also examines how generative models can be adapted to practical applications, discusses key experimental considerations for evaluating generated structures, and ...
Houssam Metni +15 more
wiley +1 more source