Results 71 to 80 of about 13,169 (193)

Aspect ratios of far-infrared and H I filaments in the diffuse interstellar medium at high Galactic latitudes

Astronomy & Astrophysics, 2023
Context. Dusty magnetized structures observable in the far-infrared (FIR) at high Galactic latitudes are ubiquitous and found to be closely related to H I filaments with coherent velocity structures. Aims. Considering dimensionless morphological characteristics based on Minkowski functionals, we determine the distribution of filamentarities ℱ and ...
Kalberla, P. M. W., Haud, U.
openaire   +2 more sources

MaLeFiSenta: Machine Learning for FilamentS Identification and Orientation in the ISM

IEEE Access, 2022
Filament identification became a pivotal step in tackling fundamental problems in various fields of Astronomy. Nevertheless, existing filament identification algorithms are critically user-dependent and require individual parametrization.
Dana Alina, Adai Shomanov, Sarah Baimukhametova   +2 more
doaj   +1 more source

Cosmic Rays in Clusters of Galaxies [PDF]

, 2002
We argue that clusters of galaxies have an intergalactic medium, which is permeated by strong magnetic fields and also has a contribution of pressure from cosmic rays.
Biermann, Peter L., Enßlin, Torsten A., Kang, Hyesung, Lee, Hyesook, Ryu, Dongsu   +4 more
core   +1 more source

Discovery of optical candidate supernova remnants in Sagittarius

, 2012
During an [O III] survey for planetary nebulae, we identified a region in Sagittarius containing several candidate Supernova Remnants and obtained deep optical narrow-band images and spectra to explore their nature.
Alikakos, J., Boumis, P., Christopoulou, P. E., Goudis, C. D.   +3 more
core   +1 more source

The Galactic Center Isolated Nonthermal Filaments as Analogs of Cometary Plasma Tails [PDF]

, 1999
We propose a model for the origin of the isolated nonthermal filaments observed at the Galactic center based on an analogy to cometary plasma tails. We invoke the interaction between a large scale magnetized galactic wind and embedded molecular clouds ...
LaRosa, T. N., Shore, Steven N.
core   +4 more sources

Multi‐isotope (N, O, Ti, and Cr) study of C1 and CM‐like clasts—Probing unsampled C1 material

Meteoritics &Planetary Science, Volume 60, Issue 5, Page 1073-1094, May 2025.
Abstract A multi‐element isotope (N, O, Ti, and Cr) study was conducted on C1 and CM‐like clasts hosted in achondrites and chondrite breccias to understand the genesis of these chondritic clasts. The mineralogy, O, and N isotopes confirm that CM‐like clasts in howardites and polymict eucrites closely resemble CM chondrite‐like material.
Markus Patzek, Yogita Kadlag, Miriam Rüfenacht, Evelyn Füri, Andreas Pack, Addi Bischoff, Harry Becker, Robbin Visser, Timm John, Maria Schönbächler   +9 more
wiley   +1 more source

Growth of Massive Molecular Cloud Filament by Accretion Flows. I. Slow-shock Instability versus Ambipolar Diffusion

The Astrophysical Journal
The Herschel Gould Belt Survey showed that stars form in dense filaments in nearby molecular clouds. Recent studies suggest that massive filaments are bound by the slow shocks caused by accretion flows onto the filaments.
Daisei Abe, Tsuyoshi Inoue, Shu-ichiro Inutsuka   +2 more
doaj   +1 more source

Characterization of the Micro‐Morphology and Compositional Distribution of Chang'e‐5 Lunar Soil Mineral Surfaces Using TOF‐SIMS

Advanced Science, Volume 12, Issue 11, March 20, 2025.
Lunar soil samples from Chang'e 5 are characterized by high‐resolution time‐of‐flight secondary ion mass spectrometry, which revealed uncommon vesicle patterns that may not be observed via the conventional scanning electron microscope with energy dispersive X‐ray.
Tinglu Song, Jie Liu, Chunlin Zhang, Xinyu Yang, Taiyang Chen, Shunzi Jiang, Fan Xu, Ning Li, Menghua Zhu, Shaolin Li, Meishuai Zou   +10 more
wiley   +1 more source

Magnetic Field of a Ring-like Molecular Cloud

The Astronomical Journal
We present a detailed study of the magnetic field structure in the G111 molecular cloud, a ring-like filamentary cloud within the NGC 7538 region. Our analysis combines multiwavelength polarization data and molecular-line observations to investigate the ...
Dana Alina, Adel Umirbayeva, Yasuo Doi, Soichiro Jo, Yue Hu, Alex Lazarian, Janik Karoly, Tie Liu, Koji S. Kawabata, Alua Mukhash, Danial Zhumagayir, Tomori Hori, Tetsuharu Maruta, Ryo Imazawa, Tatsuya Nakaoka, Mahito Sasada   +15 more
doaj   +1 more source

BICEP/Keck. XVI. Characterizing Dust Polarization through Correlations with Neutral Hydrogen

The Astrophysical Journal, 2023
We characterize Galactic dust filaments by correlating BICEP/Keck and Planck data with polarization templates based on neutral hydrogen (H i ) observations.
P. A. R. Ade, Z. Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, C. A. Bischoff, D. Beck, J. J. Bock, H. Boenish, E. Bullock, V. Buza, J. R. Cheshire IV, S. E. Clark, J. Connors, J. Cornelison, M. Crumrine, A. Cukierman, E. V. Denison, M. Dierickx, L. Duband, M. Eiben, S. Fatigoni, J. P. Filippini, S. Fliescher, C. Giannakopoulos, N. Goeckner-Wald, D. C. Goldfinger, J. Grayson, P. Grimes, G. Hall, G. Halal, M. Halpern, E. Hand, S. Harrison, S. Henderson, S. R. Hildebrandt, J. Hubmayr, H. Hui, K. D. Irwin, J. Kang, K. S. Karkare, E. Karpel, S. Kefeli, S. A. Kernasovskiy, J. M. Kovac, C. L. Kuo, K. Lau, E. M. Leitch, A. Lennox, K. G. Megerian, L. Minutolo, L. Moncelsi, Y. Nakato, T. Namikawa, H. T. Nguyen, R. O’Brient, R. W. Ogburn IV, S. Palladino, M. A. Petroff, T. Prouve, C. Pryke, B. Racine, C. D. Reintsema, S. Richter, A. Schillaci, R. Schwarz, B. L. Schmitt, C. D. Sheehy, B. Singari, A. Soliman, T. St. Germaine, B. Steinbach, R. V. Sudiwala, G. P. Teply, K. L. Thompson, J. E. Tolan, C. Tucker, A. D. Turner, C. Umiltà, C. Vergès, A. G. Vieregg, A. Wandui, A. C. Weber, D. V. Wiebe, J. Willmert, C. L. Wong, W. L. K. Wu, H. Yang, K. W. Yoon, E. Young, C. Yu, L. Zeng, C. Zhang, S. Zhang, BICEP/Keck Collaboration   +94 more
doaj   +1 more source