Results 91 to 100 of about 5,588,447 (203)

Swift heavy ion irradiation of interstellar dust analogues [PDF]

, 2017
International audienceContext. Interstellar dust grain particles are immersed in vacuum ultraviolet (VUV) and cosmic ray radiation environments influencing their physicochemical composition. Owing to the energetic ionizing interactions, carbonaceous dust
D. Severin, Severin, D., E. Dartois, M. Chabot, Bender, M., Dartois, E., Béroff, K., M. Godard, M. Bender, T. Pino, K. Béroff, Godard, M., C. Trautmann, Pino, T., Chabot, M., Trautmann, C.   +15 more
core   +1 more source

Microwave Extinction Measurements of Aerosolized Interstellar Dust Analogs

, 2016
Interstellar dust plays an important role in astrophysical processes and ob- servational astronomy, and a thorough knowledge of its composition and optical properties is essential to astronomy. However, only very limited intact samples of interstellar
Scherrer, Joseph
core  

Parameterizing the interstellar dust temperature [PDF]

, 2017
The temperature of interstellar dust particles is of great importance to astronomers. It plays a crucial role in the thermodynamics of interstellar clouds, because of the gas-dust collisional coupling.
Caselli, P., Esplugues, G., Szűcs, L., G. B. Esplugues, P. Caselli, Hocuk, S., S. Hocuk, SzHucs, L., Esplugues, G. B., M. Spaans, Esplugues, G.B., Spaans, M., S. Cazaux, L. Szűcs, Cazaux, S., Cazaux, S.M.   +15 more
core   +1 more source

Circumstellar dust [PDF]

, 1986
The presence of dust in the general interstellar medium is inferred from the extinction, polarization, and scattering of starlight; the presence of dark nebulae; interstellar depletions; the observed infrared emission around certain stars and various ...
Dwek, E.
core  

Radiation-chemical approaches to comets and interstellar dust

, 1988
We review the work relevant to radiation dosimetry and radiation chemistry of comet nucleus and interstellar dust grain. Dose evaluations and laboratory experiments suggest that a significant radiation processing of these cosmic bodies is to be expected.
Zorica D. Draganic, Ivan G. Draganic
core   +1 more source

Microscopic simulation of chemical processes on interstellar dust grains

ASTRONOMY AT THE EPOCH OF MULTIMESSENGER STUDIES. Proceedings of the VAK-2021 conference, Aug 23–28, 2021, 2022
A.I. Vasyunin, G.S. Fedoseev, A.B. Ostrovskii, M.G. Medvedev   +3 more
openaire   +1 more source

Adsorption of Volatiles on Dust Grains in Protoplanetary Disks

The Astrophysical Journal
The adsorption of volatile molecules onto dust grain surfaces fundamentally influences dust-related processes, including condensation of gas-phase molecules, dust coagulation, and planet formation in protoplanetary disks. Using advanced ab initio density
Lile Wang, Feng Long, Haifeng Yang, Ruobing Dong, Shenzhen Xu   +4 more
doaj   +1 more source

Scylla. VI. Parsec-scale Dust Extinction Maps in the SMC and LMC

The Astrophysical Journal
We present a novel methodology for mapping dust extinction in nearby galaxies at parsec-scale resolution. We apply it to 68 Hubble Space Telescope (HST) fields within the Small and Large Magellanic Clouds (23 fields in the SMC and 45 fields in the LMC ...
Christina W. Lindberg, Claire E. Murray, Christopher J. R. Clark, Caroline Bot, Clare Burhenne, Yumi Choi, Roger E. Cohen, Steven R. Goldman, Karl D. Gordon, Kristen B. W. McQuinn, Julia Roman-Duval, Karin M. Sandstrom, Edward F. Schlafly, Elizabeth Tarantino, Benjamin F. Williams, Petia Yanchulova Merica-Jones, Catherine Zucker   +16 more
doaj   +1 more source

Supernova Remnants as a Probe of Dust Grains in the Interstellar Medium

, 2010
Interstellar dust grains play a crucial role in the evolution of the galactic interstellar medium (ISM). Despite its importance, however, dust remains poorly understood in terms of its origin, composition, and abundance throughout the universe. Supernova
Williams, Brian Jeffrey
core  

Methane Formation Efficiency on Icy Grains: Role of Adsorption States

The Astrophysical Journal
Methane (CH _4 ) is one of the major components of the icy mantle of cosmic dust prevalent in cold, dense regions of interstellar media, playing an important role in the synthesis of complex organic molecules and prebiotic molecules.
Masashi Tsuge, Germán Molpeceres, Yuri Aikawa, Naoki Watanabe   +3 more
doaj   +1 more source