interstellar medium


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Related to interstellar medium: Intergalactic medium

interstellar medium

n.
Material, mostly hydrogen gas, other gases, and dust, occupying the space between the stars and providing the raw material for the formation of new stars.

interstellar medium

n
(Astronomy) the matter occurring between the stars of our Galaxy, largely in the spiral arms, and consisting mainly of huge clouds of ionized, neutral, or molecular hydrogen. Abbreviation: ISM
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Noun1.interstellar medium - interstellar space including streams of protons moving from the stars
interstellar space - the space between stars
References in periodicals archive ?
Or it could have been a result of HR 4796A interacting with the interstellar medium.
The interstellar medium, the vast space between the stars, is composed mainly of hydrogen and helium.
Once in the interstellar medium, they can lose that electron again, making them gyrate around the interstellar magnetic field.
Dr Yates gave a fascinating talk on the topic of 'New insights on the interstellar medium from new observations and computational models'.
We think these molecules eventually flow from the star into the interstellar medium, which is the diffuse gas between stars.
Conceptually, the interstellar medium increasingly looks like Earth's atmosphere, binding together the galaxy and ensuring that an event in one place will have an impact in another.
The study of two gases, Deuterium and Hydrogen, that lie within the interstellar medium, will give us the answer we're looking for.
High spectral resolution is required to address topics in modem astronomy ranging from questions about planetary atmospheres and the interstellar medium to investigations about the early universe.
According to the scientists, the dust has lost its individuality because it was homogenised in the cosmic "witch's cauldron" of the interstellar medium.
Principal investigator Bob Gehrz of the University of Minnesota Twin Cities, and collaborators have been using SOFIA to study novae as part of an ongoing research program to understand the role these objects play in creating and injecting elements into the material between the stars called the interstellar medium.
The first four chapters detail THz light in astrophysical sources: the interstellar medium at THz frequencies, THz radiative transfer, THz continuum emission, and a simple radiative transfer model.
Collectively, these papers represent a huge step forward in our understanding of the interstellar medium in the heliophysics community," said McComas.