Results 71 to 80 of about 104,360 (261)

The effects of stellar winds of fast-rotating massive stars in the earliest phases of the chemical enrichment of the Galaxy

open access: yes, 2010
We use the growing data sets of very-metal-poor stars to study the impact of stellar winds of fast rotating massive stars on the chemical enrichment of the early Galaxy.
Beers   +36 more
core   +1 more source

Studying Magnetic Reconnection with Synchrotron Polarization Statistics

open access: yesThe Astrophysical Journal
Magnetic reconnection is a fundamental process for releasing magnetic energy in space physics and astrophysics. At present, the usual way to investigate the reconnection process is through analytical studies or first-principle numerical simulations. This
Jian-Fu Zhang   +2 more
doaj   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental 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

The interstellar medium of the Antennae galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2007
To study the properties of the interstellar medium in the prototypical merging system of the Antennae galaxies (NGC 4038 and NGC 4039), we have obtained CO(1-0), (2-1) and (3-2) line maps, as well as a map of the 870 micron continuum emission. Our results are analysed in conjunction with data from X-ray to radio wavelengths.
Carsten Henkel   +7 more
openaire   +3 more sources

Detection of the buckminsterfullerene cation (C60+) in space

open access: yes, 2013
In the early 90s, C60+ was proposed as the carrier of two diffuse interstellar bands (DIBs) at 957.7 and 963.2 nm, but a firm identification still awaits gas-phase spectroscopic data.
Berné   +10 more
core   +2 more sources

Canadian Investigations of the Interstellar Medium

open access: yesarXiv: Astrophysics of Galaxies, 2019
White paper identifier ...
Trey V. Wenger   +12 more
openaire   +3 more sources

Al2O Photochemistry

open access: yesThe Astrophysical Journal
The chemistry within the interstellar medium (ISM) is notably influenced by the interplay between kinetics and photochemical processes, which play significant roles in both the formation and destruction of molecular species.
Tarek Trabelsi, Joseph S. Francisco
doaj   +1 more source

Asymmetric mass-loss from the white dwarf WD 0253+209 : Secret revealed

open access: yesBibechana, 2012
Dust structures around the white dwarf WD 0253+209 is studied in 100 and 60 micron infrared image. These images are received from Infrared Astronomical Satellite Survey (IRAS Survey).
Binil Aryal
doaj   +3 more sources

Interstellar dust within the life cycle of the interstellar medium

open access: yesEPJ Web of Conferences, 2012
Cosmic dust is omnipresent in the Universe. Its presence influences the evolution of the astronomical objects which in turn modify its physical and chemical properties.
Demyk K.
doaj   +1 more source

Two Types of q‐Gaussian Distributions Used to Study the Diffusion in a Finite Region

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 13, Page 13192-13201, September 2025.
ABSTRACT In this work, we explore both the ordinary q$$ q $$‐Gaussian distribution and a new one defined here, determining both their mean and variance, and we use them to construct solutions of the q$$ q $$‐deformed diffusion differential equation. This approach allows us to realize that the standard deviation of the distribution must be a function of
Won Sang Chung   +3 more
wiley   +1 more source

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