Results 21 to 30 of about 64,299 (208)

IAS/CEA Evolution of Dust in Nearby Galaxies (ICED): The spatially-resolved dust properties of NGC4254 [PDF]

EPJ Web of Conferences
We present the first preliminary results of the project ICED, focusing on the face-on galaxy NGC4254. We use the millimetre maps observed with NIKA2 at lRAM-30m. as part of the IMEGIN Guaranteed Time Large Program.
Pantoni L., Adam R., Ade P., Ajeddig H., André P., Artis E., Aussel H., Baes M., Beelen A., Benoît A., Berta S., Bing L., Bourrion O., Calvo M., Catalano A., De Petris M., Désert F.-X., Doyle S., Driessen E.F.C., Ejlali G., Galliano F., Gomez A., Goupy J., Jones A.P., Hanser C., Hughes A., Katsioli S., Kéruzoré F., Kramer C., Ladjelate B., Lagache G., Leclercq S., Lestrade J.-F., Macías-Pérez J.F., Madden S. C., Maury A., Mauskopf P., Mayet F., Monfardini A., Moyer-Anin A., Muñoz-Echeverría M., Nersesian A., Paradis D., Perotto L., Pisano G., Ponthieu N., Revéret V., Rigby A.J., Ritacco A., Romero C., Roussel H., Ruppin F., Schuster K., Sievers A., Smith M.W.S.L., Tabatabaei F.S., Tedros J., Tucker C., Xilouris E.M., Zylka R.   +59 more
doaj   +1 more source

Catalytic Role of Refractory Interstellar Grain Analogs on H2 Formation

Frontiers in Astronomy and Space Sciences, 2021
Refractory dust grains have an important role to play in the chemistry of star and planet-forming regions. Their surfaces interact with interstellar gas and act as a catalyst for the formation of simple and complex molecules in space.
Tushar Suhasaria, Vito Mennella
doaj   +1 more source

Techniques for Galactic Dust Measurements in the Heliosphere [PDF]

, 1999
Galactic interstellar dust (ISD) is the major ingredient in planetary formation. However, information on this important material has been extremely limited.
Auer, Auer, Baggaley, Baguhl, Brownlee, Dorschner, Eberhard Grün, Frisch, Frisch, Grün, Grün, Grün, Grün, Harald Krüger, Horányi, Håkan Svedhem, Jochen Kissel, Lallement, Landgraf, Markus Landgraf, Mathis, Mathis, Mihaly Horányi, Peter Withnell, Ralf Srama, Ratcliff, Sagdeev, Simpson, Simpson, Srama, Svedhem, Taylor, Tuzzolino, Witte, Zinner   +34 more
core   +2 more sources

Interstellar Dust Close to the Sun [PDF]

, 2012
The low density interstellar medium (ISM) close to the Sun and inside of the heliosphere provides a unique laboratory for studying interstellar dust grains.
AM Juett, AP Jones, AP Jones, BT Draine, DCB Whittet, DE Welty, DE Welty, DJ McComas, DJ McComas, EB Jenkins, H Kimura, H Kimura, H Krüger, I Mann, JC Howk, JD Slavin, JD Slavin, JD Slavin, JEG Peek, JS Mathis, L Pagani, M Asplund, M Wolleben, MP Fitzgerald, P Bochsler, PC Frisch, PC Frisch, PC Frisch, PC Frisch, PC Frisch, PC Frisch, PC Frisch, S Redfield, S Redfield, S Redfield, SIB Cartledge, UJ Sofia, V Zubko   +37 more
core   +2 more sources

Dust evolution, a global view: II. Top-down branching, nanoparticle fragmentation and the mystery of the diffuse interstellar band carriers [PDF]

Royal Society Open Science, 2016
The origin of the diffuse interstellar bands (DIBs), one of the longest-standing mysteries of the interstellar medium (ISM), is explored within the framework of The Heterogeneous dust Evolution Model for Interstellar Solids (THEMIS). The likely nature of
A. P. Jones
doaj   +1 more source

Dust Measurements in the Outer Solar System [PDF]

, 1999
Dust measurements in the outer solar system are reviewed. Only the plasma wave instrument on board Voyagers 1 and 2 recorded impacts in the Edgeworth-Kuiper belt (EKB).
Grün, Eberhard, Krüger, Harald, Landgraf, Markus   +2 more
core   +2 more sources

Chemical Kinetics Simulations of Ice Chemistry on Porous Versus Non-Porous Dust Grains

Frontiers in Astronomy and Space Sciences, 2021
The degree of porosity in interstellar dust-grain material is poorly defined, although recent work has suggested that the grains could be highly porous.
Drew A. Christianson, Robin T. Garrod, Robin T. Garrod   +2 more
doaj   +1 more source

Interstellar dust within the life cycle of the interstellar medium

EPJ Web of Conferences, 2012
Cosmic dust is omnipresent in the Universe. Its presence influences the evolution of the astronomical objects which in turn modify its physical and chemical properties.
Demyk K.
doaj   +1 more source

Prediction of the In-Situ Dust Measurements of the Stardust Mission to Comet 81P/Wild 2 [PDF]

, 1999
We predict the amount of cometary, interplanetary, and interstellar cosmic dust that is to be measured by the Cometary and Interstellar Dust Analyzer (CIDA) and the aerogel collector on-board the Stardust spacecraft during its fly-by of comet P/Wild 2 ...
Grün, Eberhard, Landgraf, Markus, Müller, Michael   +2 more
core   +3 more sources

INDUCING INTRINSIC γ-RAY EMISSION OF THE INTERSTELLAR MEDIUM BY INTENSE FLUXES OF PROTONS AND α-PARTICLES IN ACTIVE GALACTIC NUCLEI

Odessa Astronomical Publications, 2020
Cosmic-ray induced γ-ray emission in active galactic nuclei (AGN) has been examined in this study for the first time. Cross-sections for the formation of γ-quanta in such cosmic-ray collisions were selected in the 1-150 MeV energy range.
D. N. Doikov
doaj   +1 more source