Results 91 to 100 of about 52,443 (248)
Magnetic Braking of Interstellar Clouds [PDF]
Symposium - International Astronomical Union, 1990 We summarize the results of 3-D MHD calculations for a rotating and self-gravitating interstellar cloud. The angle between the axis of rotation and the magnetic field direction varies between π/2 and 0, the corresponding braking time-scales differ by roughly a factor of 3.
openaire +2 more sources
Natural Sciences, Volume 4, Issue 4, October 2024.Large free aromatic species, with up to 61 carbon atoms, were detected in grains of the Ryugu carbonaceous asteroid using ultra‐sensitive two‐step laser mass spectrometry. This discovery confirms the presence of large polycyclic aromatic hydrocarbons in the interstellar medium and provides new information on the formation and evolution of organic ...
Hassan Sabbah +3 more
wiley +1 more source
The Local Leo Cold Cloud and New Limits on a Local Hot Bubble
, 2011 We present a multi-wavelength study of the local Leo cold cloud (LLCC), a very nearby, very cold cloud in the interstellar medium. Through stellar absorption studies we find that the LLCC is between 11.3 pc and 24.3 pc away, making it the closest known ...
Carl Heiles +28 more
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Meteoritics &Planetary Science, Volume 59, Issue 10, Page 2831-2850, October 2024.Abstract Samples of B‐type asteroid (101955) Bennu returned by the Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS‐REx) spacecraft will provide unique insight into the nature of carbonaceous asteroidal matter without the atmospheric entry heating or terrestrial weathering effects associated with ...
A. N. Nguyen +7 more
wiley +1 more source
Cosmic-Ray Induced Diffusion in Interstellar Ices
Open Astronomy, 2014 Cosmic rays are able to heat interstellar dust grains. This may enhance molecule mobility in icy mantles that have accumulated on the grains in dark cloud cores.
Kalvāns Juris
doaj +1 more source
Aditional Ultra-High-Resolution Observations of Ca+ Ions in the Local Insterstellar Medium [PDF]
, 1998 We present ultra-high-resolution (0.35 km s−1 FWHM) observations of the interstellar Ca K line towards seven nearby stars. The spectral resolution was sufficient to resolve the line profiles fully, thereby enabling us to detect hitherto unresolved ...
Crawford, IA, Lallement, R, Welsh, BY
core
A study of X-ray point sources in Heiles Clouds 1 and 2
Acta PolytechnicaStar formation takes place in the coldest parts of molecular clouds, beginning in the densest, collapsing regions of filaments. As pre-main sequence stars are luminous X-ray emitters, X-ray point sources can serve as effective tracers of YSOs.
Nóra Varga +2 more
doaj +1 more source
A study of C3HD in cold interstellar clouds
The Astrophysical Journal, 1988 The published version is located at http://adsabs.harvard.edu/doi/10.1086 ...
BELL, MB +6 more
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Exotic Clouds in the Local Interstellar Medium [PDF]
Space Science Reviews, 2008 10 pages, refereed, accepted for publication in the proceedings of the "From the Outer Heliosphere to the Local Bubble: Comparisons of New Observations with Theory" conference, Space Science ...
openaire +4 more sources
Analysis of ultraviolet spectrophotometric data from Copernicus [PDF]
Ultraviolet spectral data from the OAO 3 satellite are being used to study interstellar absorption lines and stellar and circumstellar lines in hot stars.
Snow, T. P., Jr.
core +1 more source