Results 51 to 60 of about 13,210 (208)

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

Revisiting CN− Formation Mechanisms in Electron Collisions with Benzonitrile

ChemPhysChem, Volume 27, Issue 1, January 2026.
This study explores negative ion formation via electron attachment, revealing CN− formation at 3.0 and 7–10 eV. Dissociation pathways are analyzed using G4(MP2) and CASPT2 calculations, highlighting the coupling between the π4* and σ* resonances critical for interstellar chemistry. Radiation‐induced processes in the aromatic cyano compound benzonitrile
Rodrigo Rodrigues, Mónica Mendes, Daniel Bou‐Debes, João Ameixa, Ali Kamali, Oddur Ingólfsson, Samuel Eden, Lucas M. Cornetta, Filipe Ferreira da Silva   +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

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

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

Kinematics and Star Formation in the Hub–Filament System G6.55-0.1

The Astrophysical Journal
Hub–filament systems (HFSs) being the potential sites of formation of star clusters and high-mass stars, provide a testbed for the current theories that attempt to explain star formation globally.
Saurav Sen, Bhaswati Mookerjea, Rolf Güsten, Friedrich Wyrowski, C. H. Ishwara-Chandra   +4 more
doaj   +1 more source

H i Self-absorption toward the Cygnus X North: From Atomic Filament to Molecular Filament

The Astrophysical Journal Letters, 2023
Using the H i self-absorption data from the Five-hundred-meter Aperture Spherical radio Telescope, we perform a study of the cold atomic gas in the Cygnus X North region.
Chong Li, Keping Qiu, Di Li, Hongchi Wang, Yue Cao, Junhao Liu, Yuehui Ma, Chenglin Yang   +7 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

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