Results 51 to 60 of about 24,969 (196)

Physical structure of the envelopes of intermediate-mass protostars

, 2010
Context: Intermediate mass protostars provide a bridge between low- and high-mass protostars. Furthermore, they are an important component of the UV interstellar radiation field.
A. Fuente, Andre, Ayala, B. Lefloch, Bechis, Beltrán, Beltrán, Boogert, C. Ceccarelli, C. Kahane, Casali, Caux, Ceccarelli, Ceccarelli, Cesaroni, Chandler, Chini, Codella, Codella, Crimier, D. Johnstone, de Gregorio-Monsalvo, Di Francesco, Doty, Draine, E. van Dishoeck, Eiroa, Eiroa, Eislöffel, Evans, F. Wyrowski, Faure, Faure, Felli, Flower, Frerking, Froebrich, Fuente, Fuente, Fuente, Fuente, Fukui, Giovannetti, Gomez, Gondhalekar, Greve, Guesten, Habing, Hartigan, Harvey, Hatchell, Hennebelle, Herbst, Hillenbrand, Hodapp, Hogerheijde, Huard, Hurt, Ivezic, J. R. Rizzo, Jørgensen, Jørgensen, Jørgensen, Kaas, Krumholz, Ladd, Larsson, Larsson, Launhardt, Launhardt, Lefloch, Li, Lizano, M. Tafalla, Mannings, Mannings, Matthews, McKee, McLaughlin, McLaughlin, Miranda, Moro-Martín, Motte, Mueller, N. Crimier, Neri, Nisini, Noriega-Crespo, Osorio, Ossenkopf, Osterbrock, P. Caselli, Palla, Parise, Patel, R. Plume, Rodriguez, Rodriguez, S. Maret, Sandell, Saraceno, Schreyer, Schöier, Sellgren, Serabyn, Shevchenko, Shirley, Shu, Smith, Stahler, Strom, Strom, Sugitani, Sugitani, T. Alonso-Albi, Testi, Testi, Tofani, Troscompt, van der Tak, Van der Tak, Vastel, Visser, Wang, Weikard, White, Wilking, Williams, Williams, Wolf-Chase, Young, Yun, Yun   +132 more
core   +3 more sources

Sulforaphane and ophthalmic diseases

Food Science &Nutrition, Volume 12, Issue 8, Page 5296-5311, August 2024.
Sulforaphane (SFN) is an organosulfur compound categorized as an isothiocyanate (ITC), primarily extracted from cruciferous vegetables like broccoli and cabbage. This review comprehensively outlines recent research on SFN, elucidates its mechanisms of action, and discusses potential therapeutic benefits for eye disorders such as age‐related macular ...
Yichi Zhang, Xiaojing Zhao, Yang Liu, Xiuxia Yang   +3 more
wiley   +1 more source

Incorporation of 36Cl into Calcium‐Aluminum‐Rich Inclusions in the Solar Wind Implantation Model

Advances in Astronomy, Volume 2013, Issue 1, 2013., 2013
We consider the short‐lived radionuclide (SLR) 36Cl in calcium‐aluminum‐rich inclusions (CAIs) found in primitive meteorites with the solar wind implantation model. In this model, SLRs are produced via nuclear reaction with solar energetic particles (SEPs) interacting with gaseous targets in the protosolar atmosphere in T‐Tauri stars.
Glynn E. Bricker, Marc W. Caffee, Alberto J. Castro-Tirado   +2 more
wiley   +1 more source

Miller and Urey in the Universe: detecting prebiotic molecules in star-forming regions

Revista Brasileira de Ensino de Física
Astronomical observations have revealed that the simple molecules used in the Miller and Urey experiments (H2O, CH4, NH3, and H2), along with methanol, carbon monoxide, and carbon dioxide, among many others, are abundant in solid form in molecular clouds
Caroline Antunes Rosa, Alexandre Bergantini, Marcelo Emilio, Enio Frota da Silveira, Laerte Andrade, Eduardo Janot Pacheco, Claudia Lage   +6 more
doaj   +1 more source

The SOFIA Massive (SOMA) Star Formation Survey. IV. Isolated Protostars

The Astrophysical Journal, 2022
We present ∼10–40 μ m SOFIA-FORCAST images of 11 isolated protostars as part of the SOFIA Massive (SOMA) Star Formation Survey, with this morphological classification based on 37 μ m imaging.
Rubén Fedriani, Jonathan C. Tan, Zoie Telkamp, Yichen Zhang, Yao-Lun Yang, Mengyao Liu, James M. De Buizer, Chi-Yan Law, Maria T. Beltran, Viviana Rosero, Kei E. I. Tanaka, Giuliana Cosentino, Prasanta Gorai, Juan Farias, Jan E. Staff, Barbara Whitney   +15 more
doaj   +1 more source

Coevolution of phyllosilicate, carbon, sulfide, and apatite in Ryugu's parent body

Meteoritics &Planetary Science, Volume 59, Issue 8, Page 2073-2096, August 2024.
Abstract We analyzed an asteroid Ryugu sample returned to Earth by JAXA's Hayabusa2 mission using nanoIR, SEM, and TEM microscopy. We identified multiple distinct carbon reservoirs within the phyllosilicate matrix and demonstrate infrared spectral affinities for some of the carbon to insoluble organic matter (IOM).
Zack Gainsforth, Gerardo Dominguez, Kana Amano, Megumi Matsumoto, Yuri Fujioka, Eiichi Kagawa, Tomoki Nakamura, Shogo Tachibana, Tomoyo Morita, Mizuha Kikuiri, Hisayoshi Yurimoto, Takaaki Noguchi, Ryuji Okazaki, Hikaru Yabuta, Hiroshi Naraoka, Kanako Sakamoto, Toru Yada, Masahiro Nishimura, Aiko Nakato, Akiko Miyazaki, Kasumi Yogata, Masano Abe, Tatsuaki Okada, Tomohiro Usui, Makoto Yoshikawa, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Satoru Nakazawa, Sei‐ichiro Watanabe, Yuichi Tsuda, Hayabusa2 Initial Analysis Stone Team   +31 more
wiley   +1 more source

On the Magnetic Field Properties of Protostellar Envelopes in Orion

The Astrophysical Journal Letters
We present 870 μ m polarimetric observations toward 61 protostars in the Orion molecular clouds with ∼400 au (1″) resolution using the Atacama Large Millimeter/submillimeter Array.
Bo Huang, Josep M. Girart, Ian W. Stephens, Manuel Fernández López, Hector G. Arce, John M. Carpenter, Paulo Cortes, Erin G. Cox, Rachel Friesen, Valentin J. M. Le Gouellec, Charles L. H. Hull, Nicole Karnath, Woojin Kwon, Zhi-Yun Li, Leslie W. Looney, S. Thomas Megeath, Philip C. Myers, Nadia M. Murillo, Jaime E. Pineda, Sarah Sadavoy, Álvaro Sánchez-Monge, Patricio Sanhueza, John J. Tobin, Qizhou Zhang, James M. Jackson, Dominique Segura-Cox   +25 more
doaj   +1 more source

JWST Peers into the Class I Protostar TMC1A: Atomic Jet and Spatially Resolved Dissociative Shock Region

The Astrophysical Journal Letters, 2023
Outflows and winds launched from young stars play a crucial role in the evolution of protostars and the early stages of planet formation. However, the specific details of the mechanism behind these phenomena, including how they affect the protoplanetary ...
D. Harsono, P. Bjerkeli, J. P. Ramsey, K. M. Pontoppidan, L. E. Kristensen, J. K. Jørgensen, H. Calcutt, Z-Y. Li, A. Plunkett   +8 more
doaj   +1 more source

Episodic accretion, protostellar radiative feedback, and their role in low-mass star formation

, 2012
Protostars grow in mass by accreting material through their discs, and this accretion is initially their main source of luminosity. The resulting radiative feedback heats the environments of young protostars, and may thereby suppress further ...
Hubber, David A., Stamatellos, Dimitris, Whitworth, Anthony P.   +2 more
core   +1 more source

The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. II. A Statistical Characterization of Class 0 and Class I Protostellar Disks [PDF]

, 2020
We have conducted a survey of 328 protostars in the Orion molecular clouds with the Atacama Large Millimeter/submillimeter Array at 0.87 mm at a resolution of ~0.”1 (40 au), including observations with the Very Large Array at 9 mm toward 148 protostars ...
Furlan, Elise, Tobin, John J.
core