Results 111 to 120 of about 2,128 (220)
Dust Absorption toward Supernova Remnant W44
The Astronomical JournalSupernova remnants (SNRs) can strongly affect the chemical composition of the interstellar dust. In this paper, we investigate to what degree the dust and ices are modified by observing four stars expected to be absorbed by a giant molecular cloud ...
Tian-Yu Tu +3 more
doaj +1 more source
Rotational equilibrium of C2 in interstellar clouds
, 2009 In this work the understanding of the rotational equilibrium of C2 in interstellar clouds is updated. It is critical for this equilibrium to be well understood if C2 is to be used as a probe of the physical conditions in these clouds.
Ford, Kyle B.
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Magnetic seismology of interstellar gas clouds: Unveiling a hidden dimension
, 2018 A vibrating molecular cloud in three dimensions Molecular clouds are relatively dense assemblies of interstellar dust and gas (mostly molecular hydrogen) from which stars form.
Aris Tritsis, Konstantinos Tassis
core +1 more source
The Astrophysical JournalWe present some of the first infrared spectral maps acquired by SPHEREx. These maps, which to our knowledge are the largest of their type ever compiled in the near-infrared, reveal multiple strong lines due to interstellar ices and polycyclic aromatic ...
Joseph L. Hora +34 more
doaj +1 more source
Numerical studies of collapsing interstellar clouds
, 1986 Numerical simulation of the structure and evolution of interstellar clouds was initiated. Steps were taken toward an integrated treatment of the dynamical, thermal, and chemical processes entering model calculations.
Bodenheimer, P. H. +2 more
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The Magnetic Keys to Massive Star Formation: The Western η Carinae Giant Molecular Cloud
The Astrophysical JournalWe present SOFIA/HAWC+ continuum polarization data on the magnetic fields ( B fields) threading 17 pc-scale massive molecular clumps at the western end of the η Carinae giant molecular cloud (Region 9 of the Galactic Census of High- and Medium-mass ...
Peter J. Barnes +3 more
doaj +1 more source
Astronomy & AstrophysicsContext. Molecular clouds form stars from the interstellar medium via gravitational collapse, following a sequence from low-density gas to high-density cores and eventually the formation of stars. In classical density wave theory, gas clouds orbiting the
Greve Minou +19 more
doaj +1 more source
Non-equilibrium ionization around clouds evaporating in the interstellar medium
, 1986 It is of prime importance for global models of the interstellar medium to know whether dense clouds do or do not evaporate in the hot coronal gas. The rate of mass exchanges between phases depends very much on that.
Mora, P., Luciani, J. F., Ballet, J.
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Extinction Distributions in Nearby Star-resolved Galaxies. II. M33
The Astronomical JournalExtinction maps are essential for tracing interstellar dust and enabling accurate stellar population studies in galaxies. Here, a high-resolution extinction distribution of the nearby Triangulum galaxy (M33), is constructed by fitting multiband color ...
Yuxi Wang +4 more
doaj +1 more source
The Astrophysical JournalUsing high-resolution UV data obtained from the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope, we focus on eight sight lines along the Sun’s historical trajectory to reconstruct the morphology of our most recent interstellar ...
Hunter Vannier +5 more
doaj +1 more source