Results 31 to 40 of about 5,588,447 (203)
Effects of Barnett Magnetic Dipole–Dipole Interaction on Grain Growth and Destruction
The Astrophysical Journal, 2023 Rapidly spinning magnetic grains can acquire large magnetic dipole moments due to the Barnett effect. Here we study the new effect of Barnett magnetic dipole–dipole interaction on grain–grain collisions and grain growth, assuming that grains are spun up ...
Thiem Hoang, Bao Truong
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Scaling relations and interstellar dust mass budget in galaxies
, 2020 Interstellar dust influences the spectral properties of galaxies across a wide wavelength range (from the UV to the FIR), as well as their chemical abundance pattern, as it contains large fractions of heavy elements.
Francesco Calura (8399016) +1 more
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Looking for the bricks of the life in the interstellar medium: The fascinating world of astrochemistry [PDF]
EPJ Web of Conferences, 2020 The discovery in the interstellar medium of molecules showing a certain degree of complexity, and in particular those with a prebiotic character, has attracted great interest.
Barone Vincenzo, Puzzarini Cristina
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The Astrophysical JournalInfrared spectra of hydrocarbon dust absorption bands toward the bright hypergiant Cygnus OB2-12 are compared to published spectra of the Quintuplet Cluster, a sightline to the Galactic center. The Cyg OB2-12 data include a new ground-based 2.86−3.70 μ m
Yvonne J. Pendleton +16 more
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A Framework for Modeling Polycyclic Aromatic Hydrocarbon Emission in Galaxy Evolution Simulations
The Astrophysical Journal, 2023 We present a new methodology for simulating mid-infrared emission from polycyclic aromatic hydrocarbons (PAHs) in galaxy evolution simulations. To do this, we combine theoretical models of PAH emission features as they respond to varying interstellar ...
Desika Narayanan +9 more
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Interstellar Dust Analogues: Structure, Survivability and Physical Processes [PDF]
, 2019 El principal objetivo de la tesis es establecer relaciones entre la estructura microscópica o atomı́stica de análogos de polvo cósmico con una serie de propiedades quimico-fı́sicas de interés astrofı́sico. En primer lugar, se ha estudiado la relación entre la estructura de diferentes arquetipos de carbono amorfo hidrogenado (HAC) y sus propiedades
openaire +2 more sources
Photochemistry and Photobiology, EarlyView.Thin solid films of pure glycine or alanine (thicknesses ranging from 10 to 700 nm) were prepared on MgF2 windows using a vacuum sublimation/recondensation method. VUV‐UV spectroscopy of these films enabled us to characterize new absorption cross sections for glycine and alanine for VUV‐UV radiations between 120 and 300 nm.
Juliette Pastore +6 more
wiley +1 more source
The formation of molecular hydrogen in the interstellar medium [PDF]
, 2010 H2 is the most abundant molecule in the interstellar medium and forms on the surface of interstellar dust grains. Laboratory studies have been conducted of HD formation on a dust grain analogue, which is a highly-oriented pyrolytic graphite surface ...
Islam, F.
core
Monitoring of the Interstellar Dust Stream in the Inner Solar System Using Data of Different Spacecraft [PDF]
, 2004 Interstellar dust plays a key role in many astrophysical processes. However, until recently, astronomers could infer some properties of interstellar dust only through observations of starlight extinction and infrared emission.
Altobelli, Nicolas, Altobelli, N.
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Thermodynamics of Giant Molecular Clouds: The Effects of Dust Grain Size
The Astrophysical JournalThe dust grain size distribution (GSD) likely varies significantly across star-forming environments in the Universe, but its impact on star formation remains unclear. This ambiguity arises because the GSD interacts nonlinearly with processes like heating,
Nadine H. Soliman +2 more
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