Results 31 to 40 of about 1,217 (186)
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
The interstellar absorption-line spectrum of MU Ophiuchi
The Astrophysical Journal, 1982 UV interstellar lines have been measured on high-resolution, long- and short-wavelength IUE spectra of the B8 V star Mu Oph. Column densities for the observed atoms and ions have been determined as well as turbulent velocities. The interstellar spectrum of Mu Oph is similar to the ones for Rho Oph and Zeta Oph.
J. Cardelli, E. Boehm-Vitense
openaire +1 more source
Meteoritics &Planetary Science, EarlyView.Abstract Amorphous carbon (αC) is found in various extraterrestrial particles, including those thought to originate from the outer Solar System. αC can form through two main processes involving C‐rich materials: exposure to energetic charged particles and thermal processing.
M. Germanà +10 more
wiley +1 more source
A Definitive Determination of the Interstellar Carbon Abundance toward ρ Ophiuchi A and B
The Astrophysical Journal LettersWe present the results of an effort to derive interstellar gas-phase C ii abundances along the lines of sight toward ρ Oph A and B. Our analysis is based on high-resolution near-ultraviolet and far-ultraviolet archival spectra acquired with the Space ...
Adam M. Ritchey +3 more
doaj +1 more source
Interstellar Absorption Lines in the Spectrum of the Starburst Galaxy NGC 1705 [PDF]
The Astronomical Journal, 1998 21 pages, AASTeX, 8 separate Postscript figure files, To appear in Astronomical Journal, September 1998 ...
openaire +2 more sources
Distance Determinations from 21 cm Interstellar Absorption-line Measurements [PDF]
Symposium - International Astronomical Union, 1983 HI observations at 21 cm have been made with the Westerbork Synthesis Radio Telescope in the direction of six planetary nebulae located in or near the galactic plane (N 7027, 2440, 6537, 6572, 7026, 7354).
S. R. Pottasch, R. Gathier, W. M. Goss
openaire +1 more source
Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight
Experimental Physiology, EarlyView.Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley +1 more source
Chemistry–Methods, Volume 6, Issue 8, August 2026.Disentangling spectral congestion of a mixture of isomers in gas‐phase spectroscopy is critical. We present an instrument combining ion mobility, mass spectrometry, and spectroscopy in a cryogenic 3D Paul trap to investigate the isomer‐specific charged clusters and illustrate its performance with the electronic spectra of C14+ and Ca@C60+. Interpreting
Corentin Rossi +13 more
wiley +1 more source
H i Kinematics and the E(B − V)/N(H i) Ratio
The Astrophysical JournalThe λ 21 cm H i emission that is used to trace the gas-to-dust ratio at high Galactic latitudes has contributions from material beyond the Milky Way disk, with uncertain and likely subsolar metallicity and dust content.
Harvey Liszt
doaj +1 more source
Latitude Survey of Neutrons and Muons to Determine Cosmic Ray Neutron Sensing Yield Functions
Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.Abstract Cosmic Ray Neutron Sensing (CRNS) is a ground‐based technique that utilizes epithermal neutron measurements as a proxy for environmental hydrogen content. Similarly to other ground‐based cosmic ray detectors (e.g., neutron monitors), CRNS detectors are affected by the solar cycle and space weather events.
Lasse Hertle +16 more
wiley +1 more source