Results 11 to 20 of about 41,542 (217)
Dynamics of a supernova envelope in a cloudy interstellar medium [PDF]
Astronomy Reports, 2015 The evolution of a supernova remnant in a cloudy medium as a function of the volume filling factor of the clouds is studied in a three-dimensional axially symmetrical model. The model includes the mixing of heavy elements (metals) ejected by the supernova and their contribution to radiative losses.
I. G. Kovalenko +3 more
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Grain Dynamics in Magnetized Interstellar Gas [PDF]
The Astrophysical Journal, 2002 11 pages, 1 figure, ApJL, in ...
Huirong Yan, Alex Lazarian
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Investigating the dynamical history of the interstellar object ’Oumuamua [PDF]
Astronomy & Astrophysics, 2018 Here we try to find the origin of 1I/2017 U1 ’Oumuamua, the first interstellar object recorded inside the solar system. To this aim, we searched for close encounters between ’Oumuamua and all nearby stars with known kinematic data during their past motion. We had checked over 200 thousand stars and found just a handful of candidates.
Piotr A. Dybczyński +1 more
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Aspects of the Mass Distribution of Interstellar Dust Grains in the Solar System from In-Situ Measurements [PDF]
, 1999 The in-situ detection of interstellar dust grains in the Solar System by the dust instruments on-board the Ulysses and Galileo spacecraft as well as the recent measurements of hyperbolic radar meteors give information on the properties of the ...
Baggaley +30 more
core +2 more sources
The dynamics of interstellar cloud complexes [PDF]
Monthly Notices of the Royal Astronomical Society, 1988 Description d'une simulation numerique de l'evolution d'un nuage moleculaire geant de 1,5×10 5 M ○. consistant initialement en 48 nuages de masses egales se deplacant avec des vitesses supersoniques aleatoires. Les resultats montrent que, si l'energie dans le mouvement chaotique est inferieure a la valeur du viriel, une grande fraction de la matiere ...
S. R. Varnas, Joseph J Monaghan
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Nature Communications, 2021 Polycyclic aromatic hydrocarbons play an important role in interstellar chemistry, where interaction with high energy photons can induce ionization and fragmentation reactions.
J. W. L. Lee +42 more
doaj +1 more source
DYNAMICALLY DRIVEN EVOLUTION OF THE INTERSTELLAR MEDIUM IN M51 [PDF]
The Astrophysical Journal, 2009 We report the highest-fidelity observations of the spiral galaxy M51 in CO emission, revealing the evolution of giant molecular clouds (GMCs) vis-a-vis the large-scale galactic structure and dynamics. The most massive GMCs (so-called GMAs) are first assembled and then broken up as the gas flow through the spiral arms.
Peter Teuben +23 more
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Mass-loading of bow shock pulsar wind nebulae [PDF]
, 2015 We investigate the dynamics of bow shock nebulae created by pulsars moving supersonically through a partially ionized interstellar medium. A fraction of interstellar neutral hydrogen atoms penetrating into the tail region of a pulsar wind will undergo ...
Lyutikov, M., Morlino, G., Vorster, M.
core +2 more sources
DYNAMIC SPECTRAL MAPPING OF INTERSTELLAR PLASMA LENSES [PDF]
The Astrophysical Journal, 2016 ABSTRACT Compact radio sources sometimes exhibit intervals of large, rapid changes in their flux density, due to lensing by interstellar plasma crossing the line of sight. A novel survey program has made it possible to discover these “Extreme Scattering Events” (ESEs) in real time, resulting in a high-quality dynamic spectrum of an ESE ...
Artem V. Tuntsov +7 more
openaire +5 more sources
Anomalous diffusion of cosmic rays: A geometric approach
AIP Advances, 2021 In this work, we analyze the process leading to the occurrence of anomalous transport phenomena associated with galactic cosmic rays propagating through the interstellar space.
Salvatore Buonocore, Mihir Sen
doaj +1 more source