"We report the discovery of molecular gas
streams orbiting around an invisible massive object in the central region of our galaxy," the researchers stated in the (https://arxiv.org/pdf/1812.10733.pdf) abstract of their study.
First, cold molecular gas
falling towards the black hole forms a disk near the plane of rotation.
While cooling-off, they produce large amounts of molecular gas
Using ALMA to peer through the dust toward the galactic center, the team found 11 gaseous outflows tucked within a bigger ring of molecular gas
that surrounds the black hole (spanning 6 to 15-20 light-years out from it).
It is well known that stars are formed from molecular gas
, so studying the molecular gas
in galaxies provides important indications of the primary physical process of massive star formation in galaxies .
<BAn artistic impression of clouds of cold molecular gas
raining in on a galaxy and plunging toward the supermassive black hole at its centre NRAO/AUI/NSF/Dana Berry/SkyWorks/ALMA
They include discussion of heliosphere boundary measurements, interstellar grain alignments, molecular gas
, stars, star formation, planetary physics, exoplanetary systems, high-velocity stars, metal-poor stars, galactic archaeology, semianalytic vs.
ISLAMABAD -- Astronomers have discovered what may be the first known example of a globular cluster about to be born - an incredibly massive and extremely dense yet star-free cloud of molecular gas
It is extraordinary that the molecular gas
can survive being accelerated by jets of electrons moving at close to the speed of light." ( ANI )
About 110 papers discuss such aspects as the evolution of giant molecular clouds in nearby galaxies, from large scale surveys of the galaxy to high resolution observations with ALMA, molecular gas
properties and star formation in interacting galaxies, a study on the excitation mechanism of methyl formate in Orion KL using transitions in the vibrational excited states, and test observation of a new 100 GHz wave-band four-beam receiver system on the Nobeyama 45-meter telescope.
I will discuss radio observations of molecular gas
in two populations of starforming galaxies at high redshift (selected based on their rest-frame ultraviolet and far-infrared emission) and what we can learn from them.