Results 31 to 40 of about 2,846 (170)

TESS Giants Transiting Giants. VI. Newly Discovered Hot Jupiters Provide Evidence for Efficient Obliquity Damping after the Main Sequence

The Astronomical Journal
The degree of alignment between a star’s spin axis and the orbital plane of its planets (the stellar obliquity) is related to interesting and poorly understood processes that occur during planet formation and evolution.
Nicholas Saunders, Samuel K. Grunblatt, Ashley Chontos, Fei Dai, Daniel Huber, Jingwen Zhang, Guđmundur Stefánsson, Jennifer L. van Saders, Joshua N. Winn, Daniel Hey, Andrew W. Howard, Benjamin Fulton, Howard Isaacson, Corey Beard, Steven Giacalone, Judah Van Zandt, Joseph M. Akana Murphey, Malena Rice, Sarah Blunt, Emma Turtelboom, Paul A. Dalba, Jack Lubin, Casey Brinkman, Emma M. Louden, Emma Page, Cristilyn N. Watkins, Karen A. Collins, Chris Stockdale, Thiam-Guan Tan, Richard P. Schwarz, Bob Massey, Steve B. Howell, Andrew Vanderburg, George R. Ricker, Jon M. Jenkins, Sara Seager, Jessie L. Christiansen, Tansu Daylan, Ben Falk, Max Brodheim, Steven R. Gibson, Grant M. Hill, Bradford Holden, Aaron Householder, Stephen Kaye, Russ R. Laher, Kyle Lanclos, Erik A. Petigura, Arpita Roy, Ryan A. Rubenzahl, Christian Schwab, Abby P. Shaum, Martin M. Sirk, Christopher L. Smith, Josh Walawender, Sherry Yeh   +55 more
doaj   +1 more source

Uncovering the Key Factors Influencing Phytochemical and Phytopharmacological Properties During Medicinal Plant Processing

eFood, Volume 7, Issue 1, February 2026.
From farm to pharma, this review details the engineering of quality in medicinal plants through a science‐driven approach: it first elucidates how genetic and environmental factors inscribe the plant's phytochemical and phytopharmacological profile before harvest, and then dissects the postharvest techniques and technologies—chemical and thermal pre ...
Elyas Aryakia
wiley   +1 more source

Exoplanet Nodal Precession Induced by Rapidly Rotating Stars: Impacts on Transit Probabilities and Biases

The Astrophysical Journal, 2023
For the majority of short-period exoplanets transiting massive stars with radiative envelopes, the spin angular momentum of the host star is greater than the planetary orbital angular momentum.
Alexander P. Stephan, B. Scott Gaudi
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

Unifying High- and Low-resolution Observations to Constrain the Dayside Atmosphere of KELT-20b/MASCARA-2b

The Astronomical Journal, 2022
We present high-resolution dayside thermal emission observations of the exoplanet KELT-20b/MASCARA-2b using the MAROON-X spectrograph. Applying the cross-correlation method with both empirical and theoretical masks and a retrieval analysis, we confirm ...
David Kasper, Jacob L. Bean, Michael R. Line, Andreas Seifahrt, Madison T. Brady, Joshua Lothringer, Lorenzo Pino, Guangwei Fu, Stefan Pelletier, Julian Stürmer, Björn Benneke, Matteo Brogi, Jean-Michel Désert   +12 more
doaj   +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

Long-term Variations in the Orbital Period of Hot Jupiters from Transit-timing Analysis Using TESS Survey Data

The Astrophysical Journal Supplement Series
Many hot Jupiters may experience orbital decays, which are manifested as long-term transit-timing variations. We have analyzed 7068 transits from the Transiting Exoplanet Survey Satellite (TESS) for a sample of 326 hot Jupiters.
Wenqin Wang, Zixin Zhang, Zhangliang Chen, Yonghao Wang, Cong Yu, Bo Ma   +5 more
doaj   +1 more source

Evaporation of hot jupiters and hot neptunes

EPJ Web of Conferences, 2011
Among the nearly five hundred extra-solar planets known, almost 30% orbit closer than 0.1 AU from their parent star. We will review the observations and the corresponding models of the evaporation of these ‘hot jupiters’.
Ehrenreich D.
doaj   +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

The Heating Efficiency of Hot Jupiters from a Data-driven Perspective

The Astronomical Journal
The inflated radii of hot Jupiters have been explored by various theoretical mechanisms. By connecting planetary thermal evolution models with the observed properties of hot Jupiters using hierarchical Bayesian models, a theoretical parameter called the ...
Sheng Jin, Dong-Hong Wu, Yi-Xuan Cao, Zi-Yi Guo   +3 more
doaj   +1 more source