Results 61 to 70 of about 37,732 (195)

Evolution of interstellar dust and stardust in the solar neighbourhood

, 2007
The abundance evolution of interstellar dust species originating from stellar sources and from condensation in molecular clouds in the local interstellar medium of the Milky Way is studied and the input of dust material to the Solar System is determined.
Akerman, Alibes, Allende Prieto, Allende Prieto, Alongi, Amari, Amari, Anders, Anders, Basu, Bensby, Bensby, Berczik, Bertelli, Bianchi, Borkowski, Bradley, Bradley, Braun, Bressan, Caffau, Cartledge, Cayrel, Charbonnel, Chiappini, Chiar, Chiosi, Croat, Cunha, Cunha, da Silva, Daflon, Daulton, Delahaye, Demyk, Demyk, Dickey, Dopita, Draine, Dwek, Dwek, Dwek, Dwek, Edmunds, Edvardsson, Elmegreen, Ercolano, Falgarone, Feldman, Ferrarotti, François, Gil-Pons, Goswami, Gratton, Grevesse, H.-P. Gail, Hachisu, Helmi, Hirashita, Hollenbach, Holmberg, Holmgren, Holweger, Hoppe, Hoppe, Inoue, Iwamoto, Jenniskens, Jones, Jones, Jones, Jonsell, Jäger, Karakas, Karakas, Kemper, Kemper, Kennicutt, Kimura, Kimura, Kobayashi, Kozasa, Kroupa, Kroupa, Krumholz, Lamers, Leisawitz, Liffman, Lisenfeld, Lyubimkov, Lyubimkov, M. Trieloff, Mathis, Matteucci, Matzner, McKeegan, Melendez, Mera, Messenger, Messenger, Meynet, Miller, Min, Molster, Morgan, Nguyen, Nomoto, Nordström, Nozawa, Olling, Pollack, Pont, Portinari, Preibisch, Ramírez, Rana, Reddy, Reddy, Reiteri, Rocha-Pinto, Rocha-Pinto, Rolleston, S. Zhukovska, Salpeter, Savage, Scalo, Schaerer, Schaller, Schneider, Smith, Smith, Sofia, Soubiran, Spitzer, Sugerman, Talbot, Tammann, Tielens, Tielens, Tielens, Timmes, Todini, Trampedach, Travaglio, van den Hoek, van der Hucht, van Dishoeck, van Loon, Venn, Vollmer, Vorobyov, Welty, Williams, Woitke, Woosley, Zhao, Zinner, Zolensky, Zubko   +158 more
core   +1 more source

Non-equilibrium chemistry and cooling in the diffuse interstellar medium - I. Optically thin regime [PDF]

, 2014
An accurate treatment of the multiphase interstellar medium (ISM) in hydrodynamic galaxy simulations requires that we follow not only the thermal evolution of the gas, but also the evolution of its chemical state, including its molecular chemistry ...
Oppenheimer, Benjamin D., Richings, Alexander J., Schaye, Joop   +2 more
core   +3 more sources

Deciphering the “Missing Xenon Paradox” in Celestial Bodies: A Multifaceted Perspective Toward Demystifying This Enigma

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Xenon (Xe) is a heavy noble gas with intriguing chemical properties, such as having several stable isotopes and the ability to form compounds under extreme conditions. Despite the predictions based on cosmochemical models that suggest xenon should be relatively abundant in planetary reservoirs, empirical data indicate a significant depletion ...
Avinash Kumar Both, Avradip Ghosh, Chin Li Cheung   +2 more
wiley   +1 more source

State of the Early Career Profession in Space Physics and Aeronomy: Climatological Survey Results

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract The American Geophysical Union (AGU) Space Physics & Aeronomy (SPA) section comprises scientists who study the Sun, solar wind, and planetary magnetospheres, ionospheres, and thermospheric/mesospheric systems along with their interconnections.
R. C. Allen, B. Gallardo‐Lacourt, S. Raptis, C. R. Gilly, L. C. Gasque, B. L. Alterman, J. C. Buitrago‐Casas, E. P. Macho, G. Malhotra, R. M. McGranaghan, P. Mostafavi, S. K. Vines   +11 more
wiley   +1 more source

Methanol Formation via the Radical–Radical Reaction of OH and CH3 Radicals Undergoing Transient Diffusion on Ice at 10 to 60 K

The Astrophysical Journal
Methanol (CH _3 OH) is thought to form on interstellar ice dust via successive hydrogenation reactions. The reaction between CH _3 and OH radicals could also conceivably generate methanol at temperatures above approximately 20 K, at which temperature ...
Arisa Iguchi, Hiroshi Hidaka, Atsuki Ishibashi, Masashi Tsuge, Yasuhiro Oba, Naoki Watanabe   +5 more
doaj   +1 more source

The spectral features and detectability of small, cyclic silicon carbide clusters

Frontiers in Astronomy and Space Sciences, 2022
Rovibrational spectral data for several tetra-atomic silicon carbide clusters (TASCCs) are computed in this work using a CCSD(T)-F12b/cc-pCVTZ-F12 quartic force field.
Christopher M. Sehring, C. Zachary Palmer, Brent R. Westbrook, Ryan C. Fortenberry   +3 more
doaj   +1 more source

Extraplanar Dust in the Edge-On Spiral NGC 891 [PDF]

, 1997
We present high-resolution (
Howk, J. Christopher, Savage, Blair D.
core   +3 more sources

Model calculations for cosmogenic nuclides in meteorites and the lunar surface. 1. Long‐lived radionuclides

Meteoritics &Planetary Science, Volume 61, Issue 4, Page 600-620, April 2026.
Abstract Production rates for the cosmogenic radionuclides 10Be, 14C, 26Al, 36Cl, 41Ca, 53Mn, and 60Fe in a large variety of meteorites, that is, ordinary chondrites (H, L, LL), carbonaceous chondrites, HED meteorites, ureilites, Martian meteorites, and iron meteorites and in the uppermost ~2 m of the lunar surface are modeled.
Ingo Leya
wiley   +1 more source

Black hole mass measurements using ionized gas discs: systematic dust effects [PDF]

, 2008
Using detailed Monte Carlo radiative transfer simulations in realistic models for galactic nuclei, we investigate the influence of interstellar dust in ionized gas discs on the rotation curves and the resulting black hole mass measurements.
Archan S. Majumdar, Maarten Baes, Sandip K. Chakrabarti   +2 more
core   +2 more sources

Discovery and Initial Investigation of a New Low Surface Brightness Planetary Nebula Candidate at High Galactic Latitude

Astronomische Nachrichten, Volume 347, Issue 3, March 2026.
ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik, P. Köchling, S. Kotov, J. Kozok, Y. Galata, L. Magrini, A. Moiseev, M. Nischang, C. Reese, P. Remmel, P. Riepe, T. Zilch, K. Werner   +12 more
wiley   +1 more source