Results 101 to 110 of about 705,440 (315)

Alignment Parameters: Quantifying Dense Core Alignment in Star-forming Regions

The Astrophysical Journal
Recent high-resolution observations at millimeter (mm) and submillimeter wavelengths reveal a diverse spatial distribution for subparsec-scale dense cores within star-forming regions, ranging from clustered to aligned arrangements.
Wei-An Chen, Ya-Wen Tang, S. D. Clarke, Patricio Sanhueza   +3 more
doaj   +1 more source

XUE: Molecular Inventory in the Inner Region of an Extremely Irradiated Protoplanetary Disk

The Astrophysical Journal Letters, 2023
We present the first results of the eXtreme UV Environments (XUE) James Webb Space Telescope (JWST) program, which focuses on the characterization of planet-forming disks in massive star-forming regions.
María Claudia Ramírez-Tannus, Arjan Bik, Lars Cuijpers, Rens Waters, Christiane Göppl, Thomas Henning, Inga Kamp, Thomas Preibisch, Konstantin V. Getman, Germán Chaparro, Pablo Cuartas-Restrepo, Alex de Koter, Eric D. Feigelson, Sierra L. Grant, Thomas J. Haworth, Sebastián Hernández, Michael A. Kuhn, Giulia Perotti, Matthew S. Povich, Megan Reiter, Veronica Roccatagliata, Elena Sabbi, Benoît Tabone, Andrew J. Winter, Anna F. McLeod, Roy van Boekel, Sierk E. van Terwisga   +26 more
doaj   +1 more source

Chemical modelling of complex organic molecules with peptide-like bonds in star-forming regions [PDF]

, 2017
Peptide bonds (N-C=O) play a key role in metabolic processes since they link amino acids into peptide chains or proteins. Recently, several molecules containing peptide-like bonds have been detected across multiple environments in the interstellar medium
D. Qu'enard, I. Jim'enez-Serra, S. Viti, J. Holdship, A. Coutens   +4 more
semanticscholar   +1 more source

Anomalously Low-metallicity Regions in MaNGA Star-forming Galaxies: Accretion Caught in Action? [PDF]

Astrophysical Journal, 2018
We use data from 1222 late-type star-forming galaxies in the SDSS IV Mapping Nearby Galaxies at Apache Point Observatory survey to identify regions in which the gas-phase metallicity is anomalously low compared to expectations from the tight empirical ...
H. Hwang, J. Barrera-Ballesteros, T. Heckman, K. Rowlands, Lihwai Lin, V. Rodriguez-Gomez, H. Pan, B. Hsieh, S. Sánchez, D. Bizyaev, J. Almeida, D. Thilker, J. Lotz, Amy M. Jones, P. Nair, B. Andrews, N. Drory   +16 more
semanticscholar   +1 more source

Ergothioneine supplementation improves pup phenotype and survival in a murine model of spinal muscular atrophy

FEBS Letters, EarlyView.
Spinal muscular atrophy (SMA) is a genetic disease affecting motor neurons. Individuals with SMA experience mitochondrial dysfunction and oxidative stress. The aim of the study was to investigate the effect of an antioxidant and neuroprotective substance, ergothioneine (ERGO), on an SMNΔ7 mouse model of SMA.
Francesca Cadile, Daniela Ratto, Giorgia Rastelli, Ottavia Eleonora Ferraro, Caterina Temporini, Sunil Kumar, Simona Boncompagni, Paola Rossi, Monica Canepari   +8 more
wiley   +1 more source

The ALMA-QUARKS Survey: Fibers’ Role in Star Formation Unveiled in an Intermediate-mass Protocluster Region of the Vela D Cloud

The Astrophysical Journal
In this paper, we present a detailed analysis of the IRS 17 filament within the intermediate-mass protocluster IRAS 08448-4343 (of ∼10 ^3 L _⊙ ), using ALMA data from the ATOMS 3 mm and QUARKS 1.3 mm surveys.
Dongting Yang, Hong-Li Liu, Tie Liu, Anandmayee Tej, Xunchuan Liu, Jinhua He, Guido Garay, Amelia Stutz, Lei Zhu, Sheng-Li Qin, Fengwei Xu, Pak-Shing Li, Mika Juvela, Pablo García, Paul F. Goldsmith, Siju Zhang, Xindi Tang, Patricio Sanhueza, Shanghuo Li, Chang Won Lee, Swagat Ranjan Das, Wenyu Jiao, Xiaofeng Mai, Prasanta Gorai, Yichen Zhang, Zhiyuan Ren, L. Viktor Tóth, Jihye Hwang, Leonardo Bronfman, Ken’ichi Tatematsu, Lokesh Dewangan, James O. Chibueze, Suinan Zhang, Gang Wu, Jinjin Xie   +34 more
doaj   +1 more source

High- and Low-Mass Star Forming Regions from Hierarchical Gravitational Fragmentation. High local Star Formation Rates with Low Global Efficiencies

, 2009
We investigate the properties of "star forming regions" in a previously published numerical simulation of molecular cloud formation out of compressive motions in the warm neutral atomic interstellar medium, neglecting magnetic fields and stellar feedback.
A.-Katharina Jappsen, Ballesteros-Paredes, Ballesteros-Paredes, Ballesteros-Paredes, Ballesteros-Paredes, Beuther, Bigiel, Brunt, Burkert, Caselli, Elmegreen, Elmegreen, Elmegreen, Enrique Vázquez-Semadeni, Evans, Federrath, Federrath, Frisch, Galván-Madrid, Gilberto C. Gómez, Hartmann, Hartmann, Heitsch, Heitsch, Heitsch, Heitsch, Hennebelle, Heyer, Hillenbrand, Ikeda, Javier Ballesteros-Paredes, Jijina, Kirk, Klessen, Klessen, Klessen, Klessen, Klessen, Koyama, Krumholz, Krumholz, Krumholz, Kurtz, Larson, Lee, Li, Matzner, McKee, McKee, Ostriker, Palla, Ralf S. Klessen, Rosas-Guevara, Sandstrom, Tobin, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Whitworth   +61 more
core   +1 more source

The Orion Star-Forming Region

, 2000
General properties of the Orion star-forming region are discussed, with a focus on the dense Orion Nebula Cluster (ONC). This cluster contains between 2500 and 4500 objects located within a few parsecs of the eponymous Trapezium stars. Its members are aged <1 to a few Myr and encompass the full spectrum of stellar masses <50 Msun, as well as ...
Hillenbrand, Lynne A., Carpenter, John M., Feigelson, Eric D.   +2 more
openaire   +2 more sources

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Multiple Generation Star Formation in Cepheus Flare

The Astronomical Journal
We present an analysis of the young stellar moving group ASCC 127 using Gaia DR3 data, significantly expanding its membership to 3971 stars—double the number identified in previous studies.
Fan Wang, Min Fang, Xiaoting Fu, Yang Su, Xuepeng Chen, Shiyu Zhang, Penghui Liu, Xiao-Long Wang, Haijun Tian, Wenyuan Cui, Zhongmu Li   +10 more
doaj   +1 more source