This structure effectively prevents feed line radiation
from distorting the radiation pattern.
As a consequence, this radiation is called 21-cm line radiation
. (16) As most of the Universe is made of hydrogen, the spectrum of hydrogen is particularly important in astronomy for interstellar astro-cartography.
"We therefore proposed a search for line radiation
from methanol in the distant universe in order to compare the structure of the molecules thus found with the structure of today's methanol in laboratory experiments," Ubachs said.
The contraction towards dense cores, which must get rid of their increasing thermal energy through molecular line radiation
, is treated, discussing also how development appears on a Hertzsprung-Russell diagram (in the case of low-mass stars)-e.g., the Hayashi and Henyey tracks which are followed before long-term evolution commences along the Main Sequence.
In the past year, new observations of the annihilation line radiation
from the vicinity of the galactic center have revolutionized thinking about its source.
However, one must consider circuit losses, transmission line radiation
and coupling between lines for a dual polarized antenna.
By examining the galaxy through different filters, the astronomers find that the nuclear component emits strong line radiation
from hot, ionized gas, and that this gas is quite dusty.