Results 161 to 170 of about 102,546 (215)
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1998
This report summarizes the issues discussed in Working Group VI concerning the accuracy of measurements of D/H and 3He/H in the local interstellar medium, possible systematic errors, and emerging trends in the results.
Jeffrey L. Linsky +2 more
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This report summarizes the issues discussed in Working Group VI concerning the accuracy of measurements of D/H and 3He/H in the local interstellar medium, possible systematic errors, and emerging trends in the results.
Jeffrey L. Linsky +2 more
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1987
Although most of the mass of the Milky Way Galaxy is condensed into stars, interstellar space is not completely empty. It contains gas and dust, in the form both of individual clouds and of a diffuse medium. Interstellar space typically contains about one gas atom per cubic centimetre and 100 dust particles per cubic kilometre.
Hannu Karttunen +4 more
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Although most of the mass of the Milky Way Galaxy is condensed into stars, interstellar space is not completely empty. It contains gas and dust, in the form both of individual clouds and of a diffuse medium. Interstellar space typically contains about one gas atom per cubic centimetre and 100 dust particles per cubic kilometre.
Hannu Karttunen +4 more
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1990
Obwohl die meiste Masse im Milchstrasensystem in den Sternen enthalten ist, ist der interstellare Raum nicht vollkommen leer. Er enthalt Gas und Staub. Beide Bestandteile sind teilweise diffus verteilt, teilweise in einzelnen Wolken konzentriert. Typisch fur den interstellaren Raum ist eine mittlere Dichte von einem Gasatom pro Kubikzentimeter und ...
Hannu Karttunen +4 more
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Obwohl die meiste Masse im Milchstrasensystem in den Sternen enthalten ist, ist der interstellare Raum nicht vollkommen leer. Er enthalt Gas und Staub. Beide Bestandteile sind teilweise diffus verteilt, teilweise in einzelnen Wolken konzentriert. Typisch fur den interstellaren Raum ist eine mittlere Dichte von einem Gasatom pro Kubikzentimeter und ...
Hannu Karttunen +4 more
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Nature, 1975
NEUTRAL interstellar hydrogen can be prevented from penetrating freely into the heliosphere of solar plasma, because it is partially coupled to the subsonic flow of interstellar plasma. Results from modelling the backscattering of the diffuse Lyman-α radiation are therefore unreliable.
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NEUTRAL interstellar hydrogen can be prevented from penetrating freely into the heliosphere of solar plasma, because it is partially coupled to the subsonic flow of interstellar plasma. Results from modelling the backscattering of the diffuse Lyman-α radiation are therefore unreliable.
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Oxygen in the Interstellar Medium
Reviews in Mineralogy and Geochemistry, 2008The oxygen that is observed in the Solar System today is a remnant of the interstellar oxygen that was in the dense molecular cloud that collapsed to form the Solar System. While the chemical evolution of the Galaxy has progressed since then, processes in the interstellar medium (ISM) that involve oxygen are relevant to the origins of oxygen in the ...
Kemper, Ciska +3 more
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Small missions for energetic astrophysics, 1999
The study of the interstellar medium has been, and remains, a rich field for exploitation using small missions in the ultraviolet and X-ray spectral regions. I review the history of some such missions (of various sizes), and I also review the capabilities for study of the interstellar medium of “Hot Universe Background Explorer” (HUBE), as it was ...
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The study of the interstellar medium has been, and remains, a rich field for exploitation using small missions in the ultraviolet and X-ray spectral regions. I review the history of some such missions (of various sizes), and I also review the capabilities for study of the interstellar medium of “Hot Universe Background Explorer” (HUBE), as it was ...
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Astrophysics and Space Science, 1987
This paper reviews and analyses various observational data about the local interstellar medium (LISM)-a volume with a radius of about 200 pc near the Sun. There are collected radio, IR, optical, UV, and X-ray observations of the ISM and data on the Sco-Cen association.
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This paper reviews and analyses various observational data about the local interstellar medium (LISM)-a volume with a radius of about 200 pc near the Sun. There are collected radio, IR, optical, UV, and X-ray observations of the ISM and data on the Sco-Cen association.
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1986
Wir werden in diesem Buch keinen Versuch machen, die physikalischen Eigenschaften des interstellaren Mediums (Gas, Staub, kosmische Strahlung, Magnetfelder) in unserer eigenen oder anderen Galaxien im Detail zu beschreiben. Das erforderte ein ganzes Buch fur sich.
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Wir werden in diesem Buch keinen Versuch machen, die physikalischen Eigenschaften des interstellaren Mediums (Gas, Staub, kosmische Strahlung, Magnetfelder) in unserer eigenen oder anderen Galaxien im Detail zu beschreiben. Das erforderte ein ganzes Buch fur sich.
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Astrophysics of the Interstellar Medium
2021This book is based on a series of lectures for an Astrophysics of the Interstellar Medium (ISM) master’s degree in Astrophysics and Cosmology at Padova University. From the cold molecular phase in which stars and planetary systems form, to the very hot coronal gas that surrounds galaxies and galaxy clusters, the ISM is everywhere.
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