Results 21 to 30 of about 1,113,005 (163)
Electronic spectroscopy of cold cations in a 22-pole trap by indirect methods [PDF]
, 2013 The confining capabilities of a 22-pole ion trap have been employed to mea- sure electronic spectra of cations of astrophysical relevance. The ion trap sits on the head of a closed cycle cryostat, enabling collisional cooling of the confined ions with
Chakrabarty, Satrajit
core +1 more source
Broadband VLA Spectral-line Survey of a Sample of Ionized Jet Candidates
The Astrophysical Journal Supplement Series, 2023 The study of the interaction between ionized jets, molecular outflows, and their environments is critical to understanding high-mass star formation, especially because jets and outflows are thought to be key in the transfer of angular momentum outward ...
E. Sanchez-Tovar +4 more
doaj +1 more source
Molecular Hydrogen and its Proxies HCO+ and CO in the Diffuse Interstellar Medium
The Astrophysical Journal, 2023 There is a robust polyatomic chemistry in diffuse, partially molecular interstellar gas that is readily accessible in absorption at radio/millimeter/submillimeter wavelengths.
Harvey Liszt, Maryvonne Gerin
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On the Spatial Distribution of 13CO Structures within 12CO Molecular Clouds
The Astrophysical Journal, 2023 We look into the 2851 ^12 CO molecular clouds harboring ^13 CO structures to reveal the distribution of the projected angular separations and radial velocity separations between their internal ^13 CO structures.
Lixia Yuan +10 more
doaj +1 more source
CHIMIA, 1977 The parameters of the interstellar chemistry have been discussed: the cosmic abundance of elements, the mass and density of the gaseous component in the interstellar space, the temperature, the source of free energy, the stability of the molecules in ...
M. Taube
doaj +1 more source
UMYU Scientifica JournalInterstellar molecular species, particularly isoelectronic diatomic molecules, exhibit distinct thermodynamic traits, setting them apart from other molecular species.
Enock O Oladimeji +6 more
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Interstellar processes: Ortho/para conversion, radiative association, and dissociative recombination
EPJ Web of Conferences, 2015 The study of the ortho-to-para ratio of assorted gas-phase interstellar molecules such as H2, H2O, NH3, and H2O+ has gained interest in recent years, based partially on new spectral observations of light hydrides by the Herschel Space Observatory ...
Herbst Eric
doaj +1 more source
Molecular Hydrogen Formation via Vibrational Excitation of Partially Superhydrogenated Pyrenes
The Astrophysical JournalWhile polycyclic aromatic hydrocarbons (PAHs) are now accepted to be abundant in interstellar space, the abundance and influence of superhydrogenated PAHs (HPAHs) in the interstellar medium (ISM) are still under investigation.
Frederik Doktor S. Simonsen +6 more
doaj +1 more source
The Astrophysical Journal, 2023 The formation of complex organic molecules by simulated secondary electrons generated in the track of galactic cosmic rays was investigated in interstellar ice analogs composed of methanol and carbon dioxide.
Joshua H. Marks +5 more
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Gas-phase Chemistry in the Interstellar Medium: The Role of Laboratory Astrochemistry
Frontiers in Astronomy and Space Sciences, 2022 “Who” and how? In this simple question the complexity of the interstellar chemistry is encapsulated. “Who” refers to what molecules are present in the interstellar medium (ISM) and “how” to the mechanisms that led to their formation.
Cristina Puzzarini
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