Results 61 to 70 of about 793,175 (240)

New Interstellar Dust Models Consistent with Extinction, Emission, and Abundance Constraints

, 2003
We present new interstellar dust models which have been derived by simultaneously fitting the far-ultraviolet to near-infrared extinction, the diffuse infrared (IR) emission and, unlike previous models, the elemental abundance constraints on the dust for
Backus G. E., Colangeli L., Desert F. X., Eli Dwek, Leger A., Lehtinen K., Li A., Lutz D., Mathis J. S., Morgan D. H., Narayan R., Ossenkopf V., Richard G. Arendt, Schutte W. A., Stognienko R., Viktor Zubko, Warren S. G., Zubko V. G., Zubko V. G., Zubko V. G.   +19 more
core   +2 more sources

Unusually Weak Diffuse Interstellar Bands toward HD 62542 [PDF]

, 2001
As part of an extensive survey of diffuse interstellar bands (DIBs), we have obtained optical spectra of the moderately reddened B5V star HD 62542, which is known to have an unusual UV extinction curve of the type usually identified with dark clouds. The
Adamson A. J., Benjamin J. McCall, Cami J., Daniel E. Welty, Donald G. York, Ehrenfreund P., Gredel R., Gredel R., Gredel R., Heger M. L., Jenniskens P., Jenniskens P., Jenniskens P., Julie Thorburn, Kerr T. H., Krelowski J., L. M. Hobbs, Leger A., Paule Sonnentrucker, Sarre P. J., Snow T. P., Snow T. P., Sonnentrucker P., Sonnentrucker P., Theodore P. Snow, van der Zwet G. P., Walker D. D.   +26 more
core   +3 more sources

Interstellar Deuterium, Nitrogen, and Oxygen Abundances toward GD 246, WD 2331–475, HZ 21, and Lanning 23: Results from the FUSE Mission [PDF]

, 2002
The interstellar abundances of D I, N I, and O I in the local ISM are studied using high-resolution spectra of four hot white dwarfs. The spectra of GD 246, WD 2331-475, HZ 21, and Lan 23 were obtained with the Far Ultraviolet Spectroscopic Explorer ...
C. Oliveira, G. Hébrard, J. Howk, J. Howk, J. Kruk, P. Chayer, P. Chayer, H. Moos   +7 more
semanticscholar   +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

Is the Sun Embedded in a Typical Interstellar Cloud?

, 2008
The physical properties and kinematics of the partially ionized interstellar material near the Sun are typical of warm diffuse clouds in the solar vicinity.
A. Czechowski, A.C. Cummings, A.C. Cummings, B. Flynn, B.D. Savage, B.E. Wood, B.E. Wood, C. Heiles, C.S. Bowyer, C.S. Weller, D.E. Welty, E. Gruen, E. Möbius, E. Salerno, E.B. Jenkins, J. Tinbergen, J. Vallerga, J.D. Slavin, J.L. Han, J.L. Linsky, J.M. Ajello, J.P. Simpson, K. Cheng, L.A. Marschall, L.M. Haffner, L.M. Haffner, M. MacLow, M. Witte, M. Wolleben, N. Lehner, N.V. Pogorelov, P. Frisch, P. Routly Jr., P.B. Lucke, P.C. Frisch, P.C. Frisch, P.C. Frisch, P.C. Frisch, P.C. Frisch, P.C. Frisch, P.M. Gondhalekar, Priscilla C. Frisch, R. Crutcher, R. Lallement, R. Lallement, R. Ratkiewicz, R. Shetty, R.J. Rand, R.J. Reynolds, R.J. Reynolds, S. Redfield, S. Redfield, S. Redfield, S.M. Kahn, T.F. Adams, T.J. Linde, V. Piirola, V.V. Izmodenov   +57 more
core   +1 more source

The galactic environment of the Sun [PDF]

, 1999
The interstellar cloud surrounding the solar system regulates the galactic environment of the Sun and constrains the physical characteristics of the interplanetary medium.
Frisch, P. C.
core   +3 more sources

Combustion and Pyrolysis EA‐IRMS Techniques to Determine the δ2H of Diamonds

Rapid Communications in Mass Spectrometry, Volume 40, Issue 10, 30 May 2026.
ABSTRACT Rationale Diamonds are generally considered to be metasomatic minerals originating from the Earth's mantle. They formed through the interaction of carbon‐bearing fluids or melts with the surrounding deep lithology. Most knowledge about the formation of diamonds comes from studying their mineral inclusions or stable isotopes.
François Fourel, Christophe Lécuyer, Emilie Thomassot, Etienne Deloule, Charles Ojeimi   +4 more
wiley   +1 more source

Strongly Depleted Methanol and Hypervolatiles in Comet C/2021 A1 (Leonard): Signatures of Interstellar Chemistry?

The Planetary Science Journal, 2023
We measured the chemical composition of comet C/2021 A1 (Leonard) using the long-slit echelle grating spectrograph iSHELL/IRTF on 2021 December 20 and on 2022 January 8 and 9.
Sara Faggi, Manuela Lippi, Michael J. Mumma, Geronimo L. Villanueva   +3 more
doaj   +1 more source

Interstellar Atomic Abundances

, 2003
A broad array of interstellar absorption features that appear in the ultraviolet spectra of bright sources allows us to measure the abundances and ionization states of many important heavy elements that exist as free atoms in the interstellar medium.
openaire   +2 more sources

Beyond Sight: Neuromorphic Synapses Triggered by Invisible Light

Small, Volume 22, Issue 10, 17 February 2026.
This review collects advancements in neuromorphic and optoelectronic devices, offering a structured analysis based on stimulus energy levels and architectural designs within the invisible spectrum. By categorizing recent research according to utilized wavelengths, specifically X‐ray, UV, and IR ranges, the study highlights diverse synaptic properties ...
Jisoo Park, Kyounghoon Kim, Eun Kwang Lee, Young‐Joon Kim, Hocheon Yoo   +4 more
wiley   +1 more source