Results 81 to 90 of about 13,210 (208)

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

Structure of the interstellar medium around Cas A

, 2008
We present a three-year series of observations at 24 microns with the Spitzer Space Telescope of the interstellar material in a 200 x 200 arcmin square area centered on Cassiopeia A.
Carlqvist P., G. H. Rieke, Garcia-Segura G., Green D. A., Heger A., K. E. Johnson, K. Misselt, O. Krause, R. Indebetouw, Stutzki J., Wilson T. L., Wolf S., Yeunjin Kim   +12 more
core   +1 more source

The Global Structure and Evolution of a Self-Gravitating Multi-phase Interstellar Medium in a Galactic Disk [PDF]

, 1999
Using high resolution, two-dimensional hydrodynamical simulations, we investigate the evolution of a self-gravitating multi-phase interstellar medium in the central kiloparsec region of a galactic disk.
Colin A. Norman, Gerritsen J. P. E., Ikeuchi S., Keiichi Wada   +3 more
core   +3 more sources

Limitations of the modified blackbody fit method for determining molecular cloud properties

Astronomische Nachrichten, Volume 345, Issue 4, May 2024.
Abstract Achieving a comprehensive understanding of the star and planet formation process is one of the fundamental tasks of astrophysics, requiring detailed knowledge of the physical conditions during the different phases of this process. During the earliest stages, that is, concerning physical processes in molecular clouds and filaments, the column ...
Niko Zielinski, Sebastian Wolf
wiley   +1 more source

Properties of interstellar filaments as derived from Herschel, Planck, and molecular line observations [PDF]

Proceedings of the International Astronomical Union, 2015
AbstractRecent Herschel and Planck observations of submillimeter dust emission revealed the omnipresence of filamentary structures in the interstellar medium (ISM). The ubiquity of filaments in quiescent clouds as well as in star-forming regions indicates that the formation of filamentary structures is a natural product of the physics at play in the ...
Doris Arzoumanian, Philippe André, François Boulanger   +2 more
openaire   +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

[Fe II] and H2 filaments in the Supernova Remnant G11.2-0.3: Supernova Ejecta and Presupernova Circumstellar Wind

, 2006
We present the results of near-infrared imaging and spectroscopic observations of the young, core-collapse supernova remnant (SNR) G11.2-0.3. In the [Fe II] 1.644 um image, we first discover long, clumpy [Fe II] filaments within the radio shell of the ...
Bon‐Chul Koo, Burton M. G., Dae‐Sik Moon, Green D. A., Green D. A., Ho‐Gyu Lee, Jae‐Joon Lee, Keith Matthews, Keller L. D., Lee H.-G., Nussbaumer H., Oliva E., Oliva E., Rousselot P., Zhang H. L.   +14 more
core   +1 more source

Fordern galaktische Zwerge die Kosmologie heraus?

Physik in unserer Zeit, Volume 55, Issue 3, Page 128-135, May 2024.
Dem Standardmodell der Kosmologie zufolge sollten sich Satellitengalaxien nahezu zufällig um ihre Hauptgalaxie verteilen und bewegen. Beobachtete Systeme um die Milchstraße und andere nahe Galaxien sind deutlich geordneter. Ist dies ein Problem für das Modell oder sogar für unser Verständnis der Dunklen Materie?
Marcel S. Pawlowski
wiley   +1 more source

Reconstructing the 3D Structure of Filamentary Structures with the Elliptical Inverse Abel Transformation Method

The Astrophysical Journal
The study of the volume density distribution of filamentary structures in molecular clouds is crucial for investigating the mechanism of star formation and can reveal the fragmentation process under the effects of gravitational collapse, magnetic fields,
Yapeng Zhang, Shibo Yuan, Weiming An, Yongli Ping, Jiayong Zhong   +4 more
doaj   +1 more source

Brecciation at the grain scale within the lithologies of the Winchcombe Mighei‐like carbonaceous chondrite

Meteoritics &Planetary Science, Volume 59, Issue 5, Page 1068-1100, May 2024.
Abstract The Mighei‐like carbonaceous (CM) chondrites have been altered to various extents by water–rock reactions on their parent asteroid(s). This aqueous processing has destroyed much of the primary mineralogy of these meteorites, and the degree of alteration is highly heterogeneous at both the macroscale and nanoscale.
Luke Daly, Martin D. Suttle, Martin R. Lee, John Bridges, Leon Hicks, Pierre‐Etienne M. C. Martin, Cameron J. Floyd, Laura E. Jenkins, Tobias Salge, Ashley J. King, Natasha V. Almeida, Diane Johnson, Patrick W. Trimby, Haithem Mansour, Fabian B. Wadsworth, Gavyn Rollinson, Matthew J. Genge, James Darling, Paul A. J. Bagot, Lee F. White, Natasha R. Stephen, Jennifer T. Mitchell, Sammy Griffin, Francesca M. Willcocks, Rhian Jones, Sandra Piazolo, Joshua F. Einsle, Alice Macente, Lydia J. Hallis, Aine O'Brien, Paul F. Schofield, Sara S. Russell, Helena Bates, Caroline Smith, Ian Franchi, Lucy V. Forman, Phil A. Bland, David Westmoreland, Iain Anderson, Richard Taylor, Mark Montgomery, Mark Parsons, Jérémie Vasseur, Matthias van Ginneken, Penelope J. Wozniakiewicz, Mark J. Burchell, Daniel Hallatt, Luke S. Alesbrook, Vassilia Spathis, Richard Worden, Julie Behnsen, Kate Black, the UK Fireball Alliance   +52 more
wiley   +1 more source