Results 31 to 40 of about 569 (189)

Satellites and Small Bodies With ALMA: Insights Into Solar System Formation and Evolution

AGU Advances, Volume 6, Issue 6, December 2025.
Abstract Our understanding of the formation and evolution of planetary systems has made major advances in the past decade. This progress has been driven in large part by the Atacama Large Millimeter/submillimeter Array (ALMA), which has given us an unprecedented view of solar system bodies themselves, and of the structure and chemistry of forming ...
Katherine de Kleer, Michael E. Brown, Martin Cordiner, Richard Teague   +3 more
wiley   +1 more source

Hydrogen Cyanide in Comet C/2022 E3 (ZTF) from 3.4 mm Wave Spectra

The Astronomical Journal
The composition inside a comet nuclear can be detected through the molecular rotational emission lines at millimeter or submillimeter wavelengths.
Juncen Li, Jianchun Shi, Yuehua Ma, Jixian Sun   +3 more
doaj   +1 more source

Mineralogically Diverse and Salt‐Rich Regolith in Jezero Crater Characterized Using X‐Ray Spectroscopy

Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract The Planetary Instrument for X‐ray Lithochemistry (PIXL) onboard the Perseverance rover has characterized the composition of Martian regolith at a scale of hundreds of microns using micro‐focus X‐ray fluorescence spectroscopy. PIXL data reveal a diverse population of regolith grains with distinct spectral, chemical, and crystallographic ...
Andrew O. Shumway, Tanya V. Kizovski, David C. Catling, Scott J. VanBommel, Michael W. M. Jones, Brendan J. Orenstein, Mariek E. Schmidt, Michael M. Tice, Joel A. Hurowitz, Abigail L. Knight, Benton C. Clark, Lawrence Wade, Emily L. Cardarelli, An Y. Li, Mike J. Zawaski, David A. Klevang, William T. Elam, Elisabeth M. Hausrath, Allan H. Treiman, Jesper Henneke, Nicholas J. Tosca, Yang Liu, Morgan L. Cable, Abigail C. Allwood   +23 more
wiley   +1 more source

Antum Crater: A Window Into Ganymede's Icy Evolution

Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract Located within the extensive dark terrain of Marius Regio, in the anti‐Jovian trailing quadrant of Ganymede, Antum crater is marked by dark‐rayed ejecta that obscure older features and reshape the surrounding landscape. This study investigates Antum and its geological context using optical and infrared data from the Voyager and Galileo ...
Federico Tosi, Federico Colaiuta, Valentina Galluzzi, Elena Martellato, Francesca Zambon, Katrin Stephan, Namitha R. Baby, Lorenzo Bruzzone, Pasquale Palumbo, Giuseppe Piccioni   +9 more
wiley   +1 more source

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO). IV. Dust and Gas Disk Properties in the Upper Scorpius Star-forming Region

The Astrophysical Journal
The Atacama Large Millimeter/submillimeter Array (ALMA) large program AGE-PRO explores protoplanetary disk evolution by studying gas and dust across various ages.
Carolina Agurto-Gangas, Laura M. Pérez, Anibal Sierra, James Miley, Ke Zhang, Ilaria Pascucci, Paola Pinilla, Dingshan Deng, John Carpenter, Leon Trapman, Miguel Vioque, Giovanni P. Rosotti, Nicolas Kurtovic, Lucas A. Cieza, Rossella Anania, Benoît Tabone, Kamber Schwarz, Michiel R. Hogerheijde, Estephani E. TorresVillanueva, Dary A. Ruiz-Rodriguez, Camilo González-Ruilova   +20 more
doaj   +1 more source

Accuracy Assessment and Rainfall Intensity Response Mechanisms in GNSS Real‐Time PPP Water Vapor Retrieval: Coupling Effects of Multi‐Source Real‐Time Products and Meteorological Conditions

Earth and Space Science, Volume 12, Issue 9, September 2025.
Abstract The Global Navigation Satellite System (GNSS) real‐time Precise Point Positioning (PPP) technology offers a highly efficient approach for atmospheric Precipitable Water Vapor (PWV) monitoring and extreme weather warning. However, its retrieval accuracy is limited by the performance of orbit and clock products, as well as the coupling effects ...
Wenliang Gao, Guigen Nie, Yu Guo, Jiaqi Shi, Shuguang Wu   +4 more
wiley   +1 more source

Spectroscopic Investigation of Synthetic Martian Analog Mineral Mixtures Relevant to Gale and Jezero Craters Exploration

Earth and Space Science, Volume 12, Issue 8, August 2025.
Abstract We produced several mineral mixtures and measured their reflectance in the VNIR range (350–2,500 nm) with the aim of reproducing the spectral features observed by the rovers Perseverance and Curiosity in the Jezero and Gale Crater respectively.
E. Bruschini, M. Ferrari, A. Pisello, S. De Angelis, J. Brossier, M. C. De Sanctis, F. Altieri   +6 more
wiley   +1 more source

Early Planet Formation in Embedded Disks (eDisk). I. Overview of the Program and First Results

The Astrophysical Journal, 2023
We present an overview of the Large Program, “Early Planet Formation in Embedded Disks (eDisk),” conducted with the Atacama Large Millimeter/submillimeter Array (ALMA).
Nagayoshi Ohashi, John J. Tobin, Jes K. Jørgensen, Shigehisa Takakuwa, Patrick Sheehan, Yuri Aikawa, Zhi-Yun Li, Leslie W. Looney, Jonathan P. Williams, Yusuke Aso, Rajeeb Sharma, Jinshi Sai (Insa Choi), Yoshihide Yamato, Jeong-Eun Lee, Kengo Tomida, Hsi-Wei Yen, Frankie J. Encalada, Christian Flores, Sacha Gavino, Miyu Kido, Ilseung Han, Zhe-Yu Daniel Lin, Suchitra Narayanan, Nguyen Thi Phuong, Alejandro Santamaría-Miranda, Travis J. Thieme, Merel L. R. van ’t Hoff, Itziar de Gregorio-Monsalvo, Patrick M. Koch, Woojin Kwon, Shih-Ping Lai, Chang Won Lee, Adele Plunkett, Kazuya Saigo, Shingo Hirano, Ka Ho Lam, Shoji Mori   +36 more
doaj   +1 more source

Design of Waveguide NbN‐Based Superconductor–Insulator–Superconductor Mixer for 650 GHz

Advanced Photonics Research, Volume 6, Issue 7, July 2025.
This research work focuses on a waveguide NbN‐based superconductor–insulator–superconductor mixer operating at 650 GHz. The signal coupling circuit is designed using a waveguide‐microstrip coupling structure, and the return loss obtained is lower than −16 dB. For the mixing circuit, its return loss is less than −7.5 dB, and the return loss reduces with
Lianhao He, Fangting Lin, Xiaoyong He
wiley   +1 more source

Io’s SO2 and NaCl Wind Fields from ALMA

The Astrophysical Journal Letters
We present spatially resolved measurements of SO _2 and NaCl winds on Io at several unique points in its orbit: before and after eclipse and at maximum eastern and western elongation.
Alexander E. Thelen, Katherine de Kleer, Martin A. Cordiner, Imke de Pater, Arielle Moullet, Statia Luszcz-Cook   +5 more
doaj   +1 more source