Results 31 to 40 of about 2,707,906 (194)
Technology requirements of exploration beyond Neptune by solar sail propulsion [PDF]
, 2010 This paper provides a set of requirements for the technology development of a solar sail propelled Interstellar Heliopause Probe mission. The mission is placed in the context of other outer solar systems missions, ranging from a Kuiper Belt mission ...
Hughes, G.W. +2 more
core +3 more sources
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
Probing the Conditions for the H i-to-H2 Transition in the Interstellar Medium
The Astrophysical Journal, 2023 We investigate the conditions for the H i -to-H _2 transition in the solar neighborhood by analyzing H i emission and absorption measurements toward 58 Galactic lines of sight (LOSs) along with ^12 CO(1–0) (CO) and dust data. Based on the accurate column
Gyueun Park +11 more
doaj +1 more source
On the structure of the interstellar atomic gas
, 2007 to be published in the proceedings of the meeting on "Small Ionized and Neutral Structures in the Diffuse Interstellar Medium" (ASP Conference Series)
Hennebelle, P., Audit, E.
openaire +2 more sources
H i Self-absorption toward the Cygnus X North: From Atomic Filament to Molecular Filament
The Astrophysical Journal Letters, 2023 Using the H i self-absorption data from the Five-hundred-meter Aperture Spherical radio Telescope, we perform a study of the cold atomic gas in the Cygnus X North region.
Chong Li +7 more
doaj +1 more source
Evidence for the Heating of Atomic Interstellar Gas by PAHs
, 2000 We report a strong correlation between the [CII] 158 micron cooling line and the mid-infrared flux in the 5-10 micron range in a wide variety of star-forming galaxies. The mid-infrared flux is dominated by Aromatic Feature Emission (AFE), which is thought to arise from large polycyclic aromatic hydrocarbon molecules or `PAHs' and generally associated ...
Helou, George +4 more
openaire +2 more sources
Interstellar Gas Flow Vector and Temperature Determination over 5 Years of IBEX Observations [PDF]
, 2015 The Interstellar Boundary Explorer (IBEX) observes the interstellar neutral gas flow trajectories at their perihelion in Earth’s orbit every year from December through early April, when the Earth’s orbital motion is into the oncoming flow.
Fuselier, S. +11 more
core +2 more sources
ASTROCHEMISTRY OF STAR FORMATION
Odessa Astronomical Publications, 2013 Star formation is one of the key processes governing the evolution of the Universe. It is accompanied by significant transformations in the chemical composition and the physical state of the interstellar medium. Combining observations in infrared and
D. S. Wiebe, O. V. Kochina
doaj +1 more source
Electronic spectroscopy of open-chain and aromatic hydrocarbon cations in neon matrices [PDF]
, 2012 Considerable scientific interest has been devoted to the so-called diffuse interstellar bands (DIBs)—hundreds of absorption features of different strength and width, located in the visible and near infrared, and arising from the interstellar medium ...
Nagy, Adam
core +1 more source
[C ii] Spectral Mapping of the Galactic Wind and Starbursting Disk of M82 with SOFIA
The Astrophysical Journal, 2023 M82 is an archetypal starburst galaxy in the local Universe. The central burst of star formation, thought to be triggered by M82's interaction with other members in the M81 group, is driving a multiphase galaxy-scale wind away from the plane of the disk ...
Rebecca C. Levy +12 more
doaj +1 more source