Semi-analytic models and background hydrogen-ionizing flux by Devriendt, J, Guiderdoni, B, Sethi, S

“…We estimate the contribution of galaxies to the cosmic background flux at 912 Angstrom by means of an extended semi-analytic model of galaxy formation and evolution which takes into account the absorption of Lyman-limit photons by HI and dust in the interstellar medium (ISM) of the galaxies. We find that, though the background Lyman-limit flux escaping from galaxies is negligible compared to the flux from quasars at high redshifts, these two contributions become comparable at z similar or equal to 0.…”

Goonhilly Sparklers by Karastergiou, A, Walker, M

“…Flux monitoring of compact radio quasars has revealed dramatic radio-wave lensing events which challenge our understanding of the interstellar medium. However, the data on these events remain very sparse. …”

On the Propagation of Galactic Cosmic Rays by Holmes, J

“…The hydromagnetic waves formed by the streaming cosmic rays have to compete against damping processes in the interstellar medium. The dominant linear damping process is that due to collisions between the charged particles moving with the wave and the neutral particles of the interstellar medium. …”

An ISO survey of PAH features in Ultraluminous Infrared Galaxies by Lutz, D, Genzel, R, Rigopoulou, D, Spoon, H, Tran, D, Moorwood, A

“…We suggest that such PAH ratio changes relate to the conditions in the interstellar medium in these galaxies, and in particular to extinction.…”

Spin-orbit coupling effects in diatomic molecules by Cooper, D, Cooper, David L.

“…The importance of these phenomena stems from the advent of radioastronomy and the study of the interstellar medium. Identification of the molecules, and the molecular transitions, in the interstellar dust clouds is necessary for an understanding of the cooling process by which these clouds can contract to form new stars.…”

A High-level Ab Initio Study of the Destruction of Methanimine under UV Radiation by A. Bouallagui, A. Zanchet, M. Mogren Al Mogren, L. Bañares, A. García-Vela

“…The photodecomposition of methanimine (CH _2 NH) in the interstellar medium through several possible pathways is investigated by means of high-level multireference configuration interaction ab initio calculations. …”
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The Evolution of Galaxies and Clusters at High Spatial Resolution with Advanced X-ray Imaging Satellite (AXIS) by Russell, Helen R., Lopez, Laura A., Allen, Steven W., Chartas, George, Choudhury, Prakriti Pal, Dupke, Renato A., Fabian, Andrew C., Flores, Anthony M., Garofali, Kristen, Hodges-Kluck, Edmund, Koss, Michael J., Lanz, Lauranne, Lehmer, Bret D., Li, Jiang-Tao, Maksym, W. Peter, Mantz, Adam B., McDonald, Michael, Miller, Eric D., Mushotzky, Richard F., Qiu, Yu, Reynolds, Christopher S., Tombesi, Francesco, Tozzi, Paolo, Trindade-Falcão, Anna, Walker, Stephen A., Wong, Ka-Wah, Yukita, Mihoko, Zhang, Congyao

“…Stellar and black hole feedback heat and disperse surrounding cold gas clouds, launching gas flows off circumnuclear and galactic disks, producing a dynamic interstellar medium. On large scales bordering the cosmic web, feedback drives enriched gas out of galaxies and groups, seeding the intergalactic medium with heavy elements. …”
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The physics of indirect estimators of Lyman Continuum escape and their application to high-redshift JWST galaxies by Choustikov, N, Katz, H, Saxena, A, Cameron, AJ, Devriendt, J, Slyz, A, Rosdahl, J, Blaizot, J, Michel-Dansac, L

“…While multiple LyC escape fraction (<em>f</em>_esc) indicators have been proposed to trace favourable conditions for LyC leakage from the interstellar medium of low-redshift &lsquo;analogue&rsquo; galaxies, it remains unclear whether these are applicable at high redshifts where LyC emission cannot be directly observed. …”

Stochastic acceleration of cosmic rays in region of relativistic jet deceleration in blazars by M. V. Sydorenko, B. I. Hnatyk, V. V. Marchenko

“…We investigate an acceleration of relativistic particles (cosmic rays) in turbulent magnetized plasma in central regions of blazars, created by interaction of relativistic jets of FRI radio galaxies with circumnuclear and/or interstellar medium. Especially, we consider interaction of fast particles with Alfven waves in the frame of the second order Fermi mechanism of cosmic ray acceleration.…”
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Ultraluminous infrared galaxies: Starburst vs. AGN by Lutz, D, Genzel, R, Sturm, E, Tran, D, Rigopoulou, D, Spoon, H, Moorwood, A

“…We suggest that such PAH ratio changes relate to the conditions in the interstellar medium in these galaxies, and in particular to extinction. …”

Formation of molecular hydrogen on a graphite surface via an Eley-Rideal mechanism by Farebrother, A, Meijer, A, Clary, D, Fisher, A

“…The significance of these results for chemistry in the interstellar medium is discussed.…”

The GRB Afterglows Flowchart by Esma Zouaoui, Noureddine Mebarki

“…Considering several proposed models, the hydrodynamic evolution describing the external shock of the jet with the environment surrounding the GRB source or the Interstellar medium is discussed. A comparison of the results and data, considering the synchrotron emission as a basic mechanism for the radiation part, was also carried out.…”
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Astrospheres and Solar-like Stellar Winds by Wood Brian E.

“…However, these stellar winds can be studied indirectly by observing the interaction regions carved out by the collisions between these winds and the interstellar medium (ISM). These interaction regions are called "astrospheres", analogous to the "heliosphere" surrounding the Sun. …”
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Rotational-state-selected Carbon Astrochemistry by Jutta Toscano

“…This is particularly crucial in order to understand the chemistry occurring in the interstellar medium, such as exploring the formation of carbon-based astrochemical molecules and the emergence of molecular complexity in interstellar space from the reaction of small atomic and molecular fragments. …”
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Isotopic ratios and fractionation in the local Universe by Viti Serena

“…A complementary, or alternative, method is to measure isotopic ratios from observations of gas-phase interstellar medium (ISM) isotopic abundances. In this proceedings I shall review the observations of the most abundant fractionated species in nearby galaxies and recent modeling efforts aimed at investigating the physical and chemical conditions that can lead to a large spread of isotopic ratios in external local galaxies.…”
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New determination of the production cross section for secondary positrons and electrons in the Galaxy by Luca Orusa, Mattia Di Mauro, Fiorenza Donato, Michael Korsmeier

“…To infer a precise interpretation of the production processes for $e^{±}$ in our Galaxy, it is necessary to have an accurate description of the secondary component, produced by the interaction of cosmic-ray proton and helium with the interstellar medium atoms. We determine new analytical functions of the Lorentz invariant cross section for the production of $e^±$ by fitting data from collider experiments. …”
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The interface between radio jets and ionized gas clouds by Simkin, S

“…Optical spectra of the narrow, disturbed, interface regions between radio jets and gas clouds in the interstellar medium of the host galaxies of two nearby radio sources have diagnostic (BPT) diagrams for line ratios of [NII], [OIII], [SII], Halpha and Hbeta which are inconsistent with published models for shock heating, as well as those for photoionization/excitation by either a "hard" continuum or flux from ordinary hot stars. …”

The onset of jets in classical novae by McLoughlin, D, Blundell, KM, Lee, S, McCowage, C

“…We find these timings to be consistent with the jet and accretion disc model for explaining optical spectral line profile changes in classical novae, and discuss the implications of this model for enrichment of the interstellar medium. …”

Magnetic flux transport in the ISM through turbulent ambipolar diffusion by Heitsch, F, Zweibel, E, Adrianne, Slyz, D, Devriendt, J

“…Under ideal MHD conditions the magnetic field strength should be correlated with density in the interstellar medium ( ISM). However, observations indicate that this correlation is weaker than expected. …”

Total electron ionization cross-sections for neutral molecules relevant to astrochemistry by Heathcote, D, Vallance, C

“…Here, we present total electron ionisation cross-sections calculated using the binary-encounter-Bethe model for a range of neutral molecules found in the interstellar medium, planetary and cometary atmospheres, and circumstellar shells. …”