Results 91 to 100 of about 53,007 (245)

Investigating the Origins of Hot Neptunes from Radial Velocity Data

The Astronomical Journal
Hot Neptunes are extrasolar planets that are similar in size to Neptune in our solar system but are much closer to their host stars, completing an orbit in 10 days or less. The origin of hot Neptunes is not fully understood.
Sophie Y. Zheng
doaj   +1 more source

Mechanisms affecting the composition of Hot Jupiters atmospheres

EPJ Web of Conferences, 2013
Opacities and thus local chemical composition play a key role when characterizing exoplanet atmospheres from observations. When the gas is in chemical equilibrium the chemical abundances depend strongly on the temperature profile.
Showman Adam P., Guillot Tristan, Parmentier Vivien   +2 more
doaj   +1 more source

Magnetohydrodynamical Torsional Oscillations from Thermoresistive Instability in Hot Jupiters

The Astrophysical Journal, 2023
Hot Jupiter atmospheres may be subject to a thermoresistive instability where an increase in the electrical conductivity due to ohmic heating results in runaway of the atmospheric temperature.
Raphaël Hardy, Paul Charbonneau, Andrew Cumming   +2 more
doaj   +1 more source

Building Connections to Teach the Nature of Science: An Experienced Science Teacher's Formative Assessment Practices in a High School Classroom

Journal of Research in Science Teaching, Volume 63, Issue 2, Page 161-185, February 2026.
ABSTRACT While understanding the nature of science (NOS) is recognized as a key component of science education because of its potential benefits in nurturing scientific literacy, there is currently limited knowledge on how NOS learning can be supported by teachers' ongoing, in‐the‐moment assessment in the classroom.
Wonyong Park, Sibel Erduran, Judith Hillier   +2 more
wiley   +1 more source

TOI-150: A transiting hot Jupiter in the TESS southern CVZ

, 2019
We report the detection of a hot Jupiter ($M_{p}=1.75_{-0.17}^{+0.14}\ M_{J}$, $R_{p}=1.38\pm0.04\ R_{J}$) orbiting a middle-aged star ($\log g=4.152^{+0.030}_{-0.043}$) in the Transiting Exoplanet Survey Satellite (TESS) southern continuous viewing zone
Aerts, Conny, Beaton, Rachael L., Bender, Chad F., Butler, R. Paul, Cañas, Caleb I., Covey, Kevin R., Crane, Jeffrey D., Díaz, Matías R., Fleming, Scott W., García-Hernández, D. A., Hearty, Fred R., Kollmeier, Juna A., Lee, Nathan De, Mahadevan, Suvrath, Majewski, Steven R., Monson, Andrew J., Nitschelm, Christian, Schneider, Donald P., Shectman, Stephen A., Stassun, Keivan G., Stefansson, Gudmundur, Teske, Johanna K., Tkachenko, Andrew, Wang, Sharon X., Wang, Songhu, Wilson, John C., Wilson, Robert F.   +26 more
core   +1 more source

Hot Jupiters Have Giant Companions: Evidence for Coplanar High-Eccentricity Migration [PDF]

, 2023
Jon K. Zink, Andrew W. Howard
openalex   +1 more source

Synthesis and thermal properties of dense Si─Al─C─N‐based polymer‐derived ceramics

International Journal of Applied Ceramic Technology, Volume 23, Issue 1, February 2026.
Abstract In the present study, aluminum‐modified preceramic silicon polymers were synthesized via chemical modification of a commercially available organopolysilazane using an aluminum amido complex. The incorporation of aluminum into the polymer structure and its effect on ceramization behavior and processability as well as the thermal and mechanical ...
Minoo Boroojerdi, Daniela Camacho, Hergen Breitzke, Ingrit Nurak, Marc Widenmeyer, Wenjie Xie, Astrid Pundt, Gerd Buntkowsky, Ralf Riedel, Emanuel Ionescu   +9 more
wiley   +1 more source

Unified Kraft Break at ∼6500 K: A Newly Identified Single-star Obliquity Transition Matches the Classical Rotation Break

The Astrophysical Journal Letters
The stellar obliquity transition, defined by a T _eff cut separating aligned from misaligned hot Jupiter systems, has long been assumed to coincide with the rotational Kraft break.
Xian-Yu Wang, Songhu Wang, J. M. Joel Ong   +2 more
doaj   +1 more source

Evidence That the Occurrence Rate of Hot Jupiters around Sun-like Stars Decreases with Stellar Age [PDF]

, 2023
Shota Miyazaki, K. Masuda
openalex   +1 more source

Single‐source precursor synthesis of a compositionally complex early transitional metal nitride (V, Nb, Ta, Mo, W)Nx and its high temperature stability

International Journal of Applied Ceramic Technology, Volume 23, Issue 1, February 2026.
Abstract Compositionally complex transitional metal nitrides are an interesting class of ceramics with superior chemical, thermal, and mechanical stability, with a high potential in ultra‐high temperature applications and catalysis. The exceptionality in the properties may partly be explained as a consequence of their high configuration entropy ...
Dharma Teja Teppala, Milan Pejić, Dejan Zagorac, Esmaeil Adabifiroozjaei, Naina Goyal, Leopoldo Molina‐Luna, Sanjay Mathur, Branko Matović, Emanuel Ionescu   +8 more
wiley   +1 more source