Results 91 to 100 of about 1,038 (210)

exoALMA. XX. Tomographic Detection of Embedded Planets in Protoplanetary Disks

The Astrophysical Journal Letters
The exoALMA Large Program has revealed a wealth of substructures in the dust and molecular line emission of several protoplanetary discs, suggesting that planet formation may unfold within highly dynamic environments.
Andrés F. Izquierdo, Jaehan Bae, Stefano Facchini, Ewine F. van Dishoeck, Marcelo Barraza-Alfaro, Myriam Benisty, Richard Teague, Jochen Stadler, Sean M. Andrews, Gianni Cataldi, Nicolás Cuello, Pietro Curone, Ian Czekala, Daniele Fasano, Mario Flock, Misato Fukagawa, Maria Galloway-Sprietsma, Cassandra Hall, Jane Huang, John D. Ilee, Andrea Isella, Jensen Lawrence, Geoffroy Lesur, Giuseppe Lodato, Cristiano Longarini, Ryan A. Loomis, François Ménard, Christophe Pinte, Daniel J. Price, Giovanni Rosotti, Leonardo Testi, David J. Wilner, Andrew J. Winter, Lisa Wölfer, Brianna Zawadzki   +34 more
doaj   +1 more source

Against Proxy Optimization

Philosophy and Phenomenological Research, EarlyView.
ABSTRACT I discuss conditions under which maximizing a proxy utility function is harmful and suggest this poses problems for applying decision theory.
Sven Neth
wiley   +1 more source

A Close Pair of Orbiters Embedded in a Gaseous Disk: The Repulsive Effect

The Astrophysical Journal
We develop a theoretical framework and use 2D hydrodynamical simulations to study the repulsive effect between two close orbiters embedded in an accretion disk.
F. J. Sánchez-Salcedo, F. S. Masset, S. Cornejo   +2 more
doaj   +1 more source

Microbial volatile compounds enhance drought resilience and productivity in CAM and C3 crops

Plant Biology, EarlyView.
Microbial volatiles EV and CAMP, derived from Bacillus spp. and Beauveria pseudobassiana associated with agaves and cacti, respectively, enhance drought resilience and productivity in Agave tequilana and tomato. Abstract Plants interact with their associated microbiota through diverse chemical cues, including microbial volatile organic compounds (mVOCs)
Z. F. Nieves‐López, I. U. Merino‐Espinoza, F. Ureta‐Quiroz, S. Gudiño‐Vallejo, M. Heil, L. P. Partida‐Martínez   +5 more
wiley   +1 more source

The Ophiuchus DIsk Survey Employing ALMA (ODISEA): A Unified Evolutionary Sequence of Planet-driven Substructures Explaining the Diversity of Disk Morphologies

The Astrophysical Journal Letters
Understanding the origin of substructures in protoplanetary disks and their connection to planet formation is currently one of the main challenges in astrophysics. While some disks appear smooth, most exhibit diverse substructures such as gaps, rings, or
Santiago Orcajo, Lucas A. Cieza, Octavio Guilera, Sebastián Pérez, Fernando R. Rannou, Camilo González-Ruilova, Grace Batalla-Falcon, Trisha Bhowmik, Prachi Chavan, Simon Casassus, Anuroop Dasgupta, Kevin Diaz, José L. Gomez, Antonio S. Hales, J. M. Miley, Marcelo M. Miller Bertolami, P.H. Nogueira, María Paula Ronco, Dary Ruiz-Rodriguez, Anibal Sierra, Julia Venturini, Philipp Weber, Jonathan P. Williams, Alice Zurlo   +23 more
doaj   +1 more source

Rapid responses of marsh birds to large‐scale tidal wetland restoration in California's Sacramento–San Joaquin Delta

Restoration Ecology, EarlyView.
Abstract Introduction Tidal wetland restoration is widely used to recover ecosystem function in modified estuaries, yet uncertainty remains about how quickly wildlife communities respond. Early trajectories are central to evaluating restoration success, guiding adaptive management, and building ecosystem resilience in engineered landscapes. Marsh birds
Jason Riggio, Danielle T. Fradet, Amanda S. Kindel, Michelle Mah, Kristen A. Zumdahl, Molly Ferrell, Andrew Engilis   +6 more
wiley   +1 more source

Search for Slow Bars in Two Barred Galaxies with Nuclear Structures: NGC 6951 and NGC 7716

The Astrophysical Journal
We investigate two barred galaxies with nuclear structures, NGC 6951 and NGC 7716, to examine whether they host slow bars. Using Gemini/GMOS long-slit spectroscopy, we calculate the bar pattern speed with the Tremaine–Weinberg method and detect ...
Yun Hee Lee, Ho Seong Hwang, Virginia Cuomo, Myeong-Gu Park, Taehyun Kim, Narae Hwang, Hong Bae Ann, Woong-Tae Kim, Hyun-Jeong Kim, Ji Yeon Seok, Jeong Hwan Lee, Yeon-Ho Choi   +11 more
doaj   +1 more source

Testing coir (coconut) fiber as a novel, biodegradable material for coral reef restoration: coir interactions with larval and juvenile corals

Restoration Ecology, EarlyView.
Abstract Introduction Coral populations have declined in recent decades, largely due to anthropogenic climate change. In response, coral restoration projects are being implemented, and rubble stabilization is one such approach. Rubble beds form when dead coral fragments accumulate on the seafloor and can be mobilized by water flow.
Kyle M. Phillips, Carine D. Lefèvre, Carly J. Randall   +2 more
wiley   +1 more source

Women in space: A review of known physiological adaptations and health perspectives

Experimental Physiology, EarlyView.
Abstract Exposure to the spaceflight environment causes adaptations in most human physiological systems, many of which are thought to affect women differently from men. Since only 11.5% of astronauts worldwide have been female, these issues are largely understudied.
Millie Hughes‐Fulford, Danielle J. Carroll, Heather C. M. Allaway, Bonnie J. Dunbar, Aenor J. Sawyer   +4 more
wiley   +1 more source

Gas Pressure Driven Screening Forces and Pebble Aggregation: A Pathway for Growth in Planet Formation

The Astrophysical Journal
The formation of planetesimals from centimeter-sized pebbles in protoplanetary disks faces significant barriers, including fragmentation and radial drift.
Mukesh Kumar Vyas
doaj   +1 more source