Results 31 to 40 of about 42,575 (298)

CTA and cosmic-ray diffusion in molecular clouds [PDF]

AIP Conference Proceedings, 2012
In Proceedings of the 2012 Heidelberg Symposium on High Energy Gamma-Ray Astronomy.
Pedaletti, G., Torres, D., Gabici, S., de Ona Wilhelmi, E., Mazin, D., Stamatescu, V.   +5 more
openaire   +4 more sources

Towards an anagraphical picture of high-energy Galactic neutrinos [PDF]

EPJ Web of Conferences, 2019
The TeV/PeV neutrino emission from our Galaxy is related to the distribution of cosmic-ray accelerators, their maximal energy of injection as well as the propagation of injected particles and their interaction with molecular gas.
Marinelli Antonio, Grasso Dario, Ventura Sofia   +2 more
doaj   +1 more source

Formation of Dust Filaments in the Diffuse Envelopes of Molecular Clouds [PDF]

The Astrophysical Journal, 2021
Abstract The path to understanding star formation processes begins with the study of the formation of molecular clouds. The outskirts of these clouds are characterized by low column densities that allow the penetration of ultraviolet radiation, resulting in a nonnegligible ionization fraction and the charging of the small dust grains ...
Leire Beitia-Antero, Ana I. Gómez de Castro, Juan C. Vallejo   +2 more
openaire   +3 more sources

Observational Constraints for Modeling Diffuse Molecular Clouds [PDF]

Proceedings of the International Astronomical Union, 2013
AbstractGround-based and space-borne observations of diffuse molecular clouds suggest a number of areas where further improvements to modeling efforts is warranted. I will highlight those that have the widest applicability. The range in CO fractionation caused by selective isotope photodissociation, in particular the large 12C16O/13C16O ratios observed
openaire   +1 more source

APEX telescope observations of new molecular ions [PDF]

, 2011
Hydrides are key ingredients of interstellar chemistry since they are the initial products of chemical networks that lead to the formation of more complex molecules.
Belloche, A., Güsten, R., Menten, K. M., Wyrowski, F.   +3 more
core   +1 more source

Dissociative Recombination of CH⁺ Molecular Ion Induced by Very Low Energy Electrons

Atoms, 2019
We used the multichannel quantum defect theory to compute cross sections and rate coefficients for the dissociative recombination of CH + initially in its lowest vibrational level v i + = 0 with electrons of incident energy below 0 ...
Zsolt J. Mezei, Michel D. Epée Epée, Ousmanou Motapon, Ioan F. Schneider   +3 more
doaj   +1 more source

Comparing the Locations of Supernovae to CO (2–1) Emission in Their Host Galaxies

The Astrophysical Journal, 2023
We measure the molecular gas environment near recent (
Ness Mayker Chen, Adam K. Leroy, Laura A. Lopez, Samantha Benincasa, Mélanie Chevance, Simon C. O. Glover, Annie Hughes, Kathryn Kreckel, Sumit Sarbadhicary, Jiayi Sun, Todd A. Thompson, Dyas Utomo, Frank Bigiel, Guillermo A. Blanc, Daniel A. Dale, Kathryn Grasha, J. M. Diederik Kruijssen, Hsi-An Pan, Miguel Querejeta, Eva Schinnerer, Elizabeth J. Watkins, Thomas G. Williams   +21 more
doaj   +1 more source

Are Supernovae Responsible for the Gamma Ray Spectrum from the Galactic Center?

Acta Polytechnica CTU Proceedings, 2014
We discuss the supernova remnants distribution as a function of the galactic longitude and compare their positions to that of the detected TeV gamma ray sources. A large fraction of these sources either coincide or a close by known supernova remnants. If
Todor Stanev
doaj   +1 more source

The chemistry of fluorine-bearing molecules in diffuse and dense interstellar gas clouds

, 2005
We present a theoretical investigation of the chemistry of fluorine-bearing molecules in diffuse and dense interstellar gas clouds. The chemistry of interstellar fluorine is qualitatively different from that of any other element, because - unlike the ...
Neufeld, David A., Schilke, Peter, Wolfire, Mark G.   +2 more
core   +1 more source

The Turbulent Interstellar Medium [PDF]

, 2006
An overview is presented of the main properties of the interstellar medium. Evidence is summarized that the interstellar medium is highly turbulent, driven on different length scales by various energetic processes.
Andreas Burkert, Balbus, Ballesteros-Paredes, Bergin, Blitz, Blondin, Bonnell, Burkert, Burkert, Burkert, Cappellaro, Cowie, de Avillez, de Avillez, Dib, Dib, Dickey, Dickey, Dziourkevitch, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Falgarone, Field, Field, Forster Schreiber, Gazol, Hartmann, Hartmann, Hartmann, Hartmann, Heiles, Heitsch, Heitsch, Hennebelle, Hennebelle, Jenkins, Kanekar, Kerp, Kessel-Deynet, Kim, Kim, Kim, Klein, Klessen, Kolmogorov, Koyama, Kritsuk, Kritsuk, Larson, Mac Low, Mac Low, Mac Low, McKee, Palla, Piontek, Puche, Rhode, Scalo, Scalo, Sellwood, Slyz, Stone, Tran, Vishniac, von Weizsäcker, Vázquez-Semadeni, Wada, Walder, Walder, Williams   +73 more
core   +3 more sources