Results 61 to 70 of about 13,169 (193)

Power Spectrum Analysis of the OMC1 Image at 1.1 mm Wavelength [PDF]

, 2012
We present a 1.1mm emission map of the OMC1 region observed with AzTEC, a new large-format array composed of 144 silicon-nitride micromesh bolometers, that was in use at the James Clerk Maxwell Telescope (JCMT).
Kim, Sungeun, Youn, Soyoung
core   +1 more source

A Comprehensive Review of Additive Manufacturing for Space Applications: Materials, Advances, Challenges, and Future Directions

Advanced Engineering Materials, Volume 27, Issue 22, November 2025.
Additive manufacturing (AM) transforms space hardware by enabling lightweight, high‐performance, and on‐demand production. This review outlines AM processes—powder bed fusion (PBF), directed energy deposition (DED), binder jetting (BJ), sheet lamination (SL), and material extrusion (ME)—applied to propulsion, satellite structures, and thermal devices ...
Stelios K. Georgantzinos, Eleni Papadopoulou, Grigorios Kostopoulos, Stefanos Voulgaris, Alexandra Tseni, Panteleimon Bakalis, Maria Gkara, Chara C. Mitropoulou, Nikos D. Lagaros   +8 more
wiley   +1 more source

A Pan-galaxy Study of Synthetic Giant Molecular Filaments: A Turbulence-dominated Life Cycle

The Astrophysical Journal Supplement Series
Recent surveys of the Galactic plane have revealed dozens of giant molecular filaments (GMFs), with lengths ranging from tens to hundreds of parsecs, yet their origins and life cycles remain debated. In this work, we analyze over 700 GMFs identified from
Zipeng Hu, Ke Wang, Mark R. Krumholz, Keyun Su   +3 more
doaj   +1 more source

CMR Exploration. II. Filament Identification with Machine Learning

The Astrophysical Journal, 2023
We adopt magnetohydrodynamic simulations that model the formation of filamentary molecular clouds via the collision-induced magnetic reconnection (CMR) mechanism under varying physical conditions.
Duo Xu, Shuo Kong, Avichal Kaul, Héctor G. Arce, Volker Ossenkopf-Okada   +4 more
doaj   +1 more source

New Arabic Records From Cairo on Supernovae 1181 and 1006

Astronomische Nachrichten, Volume 346, Issue 9, November 2025.
ABSTRACT The remnant of the historical supernova SN 1181 is under discussion: While the previously suggested G130.7+3.1 (3C58) appears too old (3000–5000 year), the unusual star IRAS00500+6713 with a surrounding nebula (Pa‐30) has an expansion age not inconsistent with a SN Iax explosion in ad 1181 under the assumption that neither acceleration nor ...
J. G. Fischer, H. Halm, R. Neuhäuser, D. L. Neuhäuser   +3 more
wiley   +1 more source

GGR Handbook of Rock and Mineral Analysis Chapter 16 Nano‐Imaging for Advanced X‐Ray Fluorescence and Absorption Spectroscopy Applications

Geostandards and Geoanalytical Research, Volume 49, Issue 3, Page 495-533, September 2025.
Key Points Synchrotron nano‐imaging is necessary to locate elemental nanophases. Trace metal quantification requires high sensitivity nano‐XRF. Trace metal speciation relies on nano‐XANES using nano‐XRF. This chapter (Nano‐Imaging for Advanced X‐ray Fluorescence and Absorption Spectroscopy Applications) is a contribution to the Geostandards and ...
Alexandre S. Simionovici, Laurence Lemelle   +1 more
wiley   +1 more source

Structure and Kinematics of Sh2-138—A Distant Hub-filament System in the Outer Galactic Plane

The Astrophysical Journal, 2023
We present a molecular line study of the Sh2-138 (IRAS 22308+5812) hub-filament system with the aim of investigating its structure and kinematics. Archival CO molecular line data from the Canadian Galactic Plane Survey (CO( J = 1–0)) for the wider region
Kshitiz K. Mallick, Lokesh K. Dewangan, Devendra K. Ojha, Tapas Baug, Igor I. Zinchenko   +4 more
doaj   +1 more source

Spitzer IRS Observations of the Galactic Center: Shocked Gas in the Radio Arc Bubble [PDF]

, 2007
We present Spitzer IRS spectra (R ~600, 10 - 38 micron) of 38 positions in the Galactic Center (GC), all at the same Galactic longitude and spanning plus/minus 0.3 degrees in latitude.
Angela S. Cotera, Bautista M. A., David J. Hollenbach, Dufton P. L., Edwin F. Erickson, Erickson E. F., Gusten R., Janet P. Simpson, Koyama K., Lutz D., Michael J. Kaufman, Nussbaumer H., Oka T., Robert H. Rubin, Roche P. F., Saraph H. E., Schaerer D., Sean W. J. Colgan, Serabyn E., Serabyn E., Storey P. J., Tsujimoto M.   +21 more
core   +1 more source

Planckintermediate results [PDF]

Astronomy & Astrophysics, 2016
Planck observations at 353GHz provide the first fully-sampled maps of the polarized dust emission towards interstellar filaments and their backgrounds. The polarization data provide insight on the structure of their magnetic field (B). We present the polarization maps of three nearby star forming filament of moderate column density (NH~10^22cm^-2 ...
Planck Collaboration, Ade, P. A. R., Aghanim, N., Alves, M. I. R., Arnaud, M., Arzoumanian, D., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Bartolo, N., Jaffe, A. H., Jaffe, T. R., Jones, W. C., Juvela, M., Keskitalo, R., Kisner, T. S., Knoche, J., Kunz, M., Kurki-Suonio, H., Macías-Pérez, J. F., Tristram, M., Lagache, G., Lamarre, J. -M., Lasenby, A., Maffei, B., Battaner, E., Mandolesi, N., Mangilli, A., Maris, M., Martin, P. G., Martínez-González, E., Tucci, M., Masi, S., Matarrese, S., Mazzotta, P., Melchiorri, A., Mendes, L., Benabed, K., Mennella, A., Migliaccio, M., Mitra, S., Miville-Deschênes, M. -A., VALENZIANO, LUCA, Moneti, A., Montier, L., MORGANTE, GIANLUCA, Mortlock, D., Munshi, D., Murphy, J. A., Benoit-Lévy, A., Naselsky, P., Nati, F., Natoli, P., Valiviita, J., Nørgaard-Nielsen, H. U., Noviello, F., Novikov, D., Novikov, I., Oppermann, N., Pagano, L., Pajot, F., Bernard, J. -P., Paladini, R., PAOLETTI, DANIELA, Van Tent, B., Pasian, F., Perrotta, F., Pettorino, V., Piacentini, F., Piat, M., Pierpaoli, E., Pietrobon, D., Plaszczynski, S., Berné, O., Pointecouteau, E., Vielva, P., Polenta, G., Pratt, G. W., Puget, J. -L., Rachen, J. P., Rebolo, R., Reinecke, M., Remazeilles, M., Renault, C., Renzi, A., Bersanelli, M., VILLA, FABRIZIO, RICCIARDI, SARA, Ristorcelli, I., Rocha, G., Rosset, C., ROSSETTI, MARIACHIARA, Roudier, G., Rubiño-Martín, J. A., Rusholme, B., SANDRI, MAURA, Savelainen, M., Wade, L. A., Bielewicz, P., Savini, G., Scott, D., Soler, J. D., Stolyarov, V., Sutton, D., Suur-Uski, A. -S., Sygnet, J. -F., Tauber, J. A., TERENZI, LUCA, Wandelt, B. D., Toffolatti, L., Bonaldi, A., Tomasi, M., Bonavera, L., Lawrence, C. R., Yvon, D., ZACCHEI, Andrea, Zonca, A., Bond, J. R., Borrill, J., Bouchet, F. R., Boulanger, F., Bracco, A., BURIGANA, CARLO, Calabrese, E., Leonardi, R., Cardoso, J. -F., Catalano, A., Chamballu, A., Chiang, H. C., Christensen, P. R., Clements, D. L., Colombi, S., Colombo, L. P. L., Combet, C., Couchot, F., Levrier, F., Crill, B. P., Curto, A., CUTTAIA, FRANCESCO, Danese, L., Davies, R. D., Davis, R. J., de Bernardis, P., De Rosa, A., de Zotti, G., Delabrouille, J., Liguori, M., Dickinson, C., Diego, J. M., Donzelli, S., Doré, O., Douspis, M., Ducout, A., Dupac, X., Elsner, F., Enßlin, T. A., Eriksen, H. K., Lilje, P. B., Falgarone, E., Ferrière, K., FINELLI, FABIO, Forni, O., FRAILIS, Marco, Fraisse, A. A., FRANCESCHI, ENRICO, Frejsel, A., GALEOTTA, Samuele, Galli, S., Linden-Vørnle, M., Ganga, K., Ghosh, T., Giard, M., Giraud-Héraud, Y., Gjerløw, E., González-Nuevo, J., Górski, K. M., Gregorio, A., GRUPPUSO, ALESSANDRO, Guillet, V., López-Caniego, M., Hansen, F. K., Hanson, D., Harrison, D. L., Hernández-Monteagudo, C., Herranz, D., Hildebrandt, S. R., Hivon, E., Hobson, M., Holmes, W. A., Huffenberger, K. M., Lubin, P. M., Hurier, G.   +192 more
openaire   +21 more sources

Damping of Electron Density Structures and Implications for Interstellar Scintillation

, 2011
The forms of electron density structures in kinetic Alfven wave turbulence are studied in connection with scintillation. The focus is on small scales $L \sim 10^8-10^{10}$ cm where the Kinetic Alfv\'en wave (KAW) regime is active in the interstellar ...
Boldyrev, Boldyrev, Boldyrev, Canuto, Howes, K. W. Smith, Kinney, P. W. Terry, Sutton, Terry, Williamson, Williamson, Williamson   +12 more
core   +1 more source