Results 41 to 50 of about 889,569 (256)

Modelling the spinning dust emission from dense interstellar clouds [PDF]

, 2011
Context. Electric dipole emission arising from rapidly rotating Polycyclic Aromatic Hydrocarbons (PAHs) is often invoked to explain the anomalous microwave emission.
N. Ysard, M. Juvela, L. Verstraete
semanticscholar   +1 more source

Mid-infrared Spectroscopy of Protonated Benzonitrile, 2-Cyanonaphthalene, and 9-Cyanoanthracene for Astrochemical Consideration. [PDF]

Chemphyschem
Experimental infrared absorption spectra of three protonated cyano‐substituted PAHs measured by infrared multiple photon dissociation using the free‐electron laser Free‐Electron Laser for Infrared eXperiments are studied. These spectra are compared to an emission spectrum measured by JWST, and the largest measured protonated cyano‐PAH, cyanoanthracene,
Rasmussen AP, Rossi C, Gans B, Finazzi L, Oomens J, Berden G, Jacovella U.   +6 more
europepmc   +2 more sources

Interstellar absorptions and shocked clouds towards supernova remnant RX J0852.0-4622

, 2012
We present results of survey of interstellar absorptions towards supernova remnant (SNR) RX J0852.0-4622. The distribution of KI absorbers along the distance of the background stars is indicative of a local region (d100km/s towards three stars and ...
A. F. Iyudin, Aschenbach, Bertin, Bocchino, Borkowski, Braun, Cha, Cha, Cox, Crawford, Crawford, Danks, Draine, Famaey, Friedman, Gredel, Iyudin, Iyudin, Jenkins, Jenkins, Jura, Klein, Kritsuk, Kupka, McKee, N. N. Chugai, Patnaude, Rots, Routly, Savage, Shull, Stanimirović, Sutherland, Tielens, Tsymbal, Wallerstein, Welty, Welty, Welty, Welty, Woermann, Wolfire, Wolfire, Yu. V. Pakhomov   +43 more
core   +1 more source

Interstellar processes: Ortho/para conversion, radiative association, and dissociative recombination

EPJ Web of Conferences, 2015
The study of the ortho-to-para ratio of assorted gas-phase interstellar molecules such as H2, H2O, NH3, and H2O+ has gained interest in recent years, based partially on new spectral observations of light hydrides by the Herschel Space Observatory ...
Herbst Eric
doaj   +1 more source

Centrosymmetric molecules as possible carriers of diffuse interstellar bands

, 2010
In this paper, we present new data with interstellar C2 (Phillips bands A-X), from observations made with the Ultraviolet-Visual Echelle Spectrograph of the European Southern Observatory.
Bakker, Bakker, Ballik, Ballik, Chauville, Crawford, Douay, Douglas, F. A. Musaev, Frisch, G. A. Galazutdinov, Galazutdinov, Galazutdinov, Gredel, Heger, Herbig, Herbig, Hobbs, J. Krełowski, Kaźmierczak, Kaźmierczak, Langhoff, M. Kaźmierczak, M. R. Schmidt, Maier, Marenin, Morton, Sarre, Sonnentrucker, Thorburn, Van Dishoeck, Van Dishoeck, Westerlund, Y. Betelesky, Ádámkovics   +34 more
core   +1 more source

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

Journal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source

Cloud-to-cloud Velocity Dispersions Across a Local Arm Segment

The Astrophysical Journal
Using a large sample of 9617 molecular clouds (MCs) from the Milky Way Imaging Scroll Painting survey, we mainly measure one-dimensional cloud-to-cloud velocity dispersions across a 450 deg ^2 segment of the Local Arm in the Galactic second quadrant.
Lixia Yuan, Ji Yang
doaj   +1 more source

The Fractal Dimension of Projected Clouds

, 2005
The interstellar medium seems to have an underlying fractal structure which can be characterized through its fractal dimension. However, interstellar clouds are observed as projected two-dimensional images, and the projection of a tri-dimensional fractal
Beech M., Beech M., Emilio J. Alfaro, Enrique Perez, Falgarone E., Hetem A., Larson R. B., Nestor Sanchez, Stutzki J., Vogelaar M. G. R.   +9 more
core   +1 more source

A Fractal Origin for the Mass Spectrum of Interstellar Clouds. II. Cloud Models and Power-Law Slopes [PDF]

, 1996
Three-dimensional fractal models on grids of ~2003 pixels are generated from the inverse Fourier transform of noise with a power-law cutoff and exponentiated to give a lognormal distribution of density.
B. Elmegreen
semanticscholar   +1 more source

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

Systems Research and Behavioral Science, EarlyView.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source