Active supermassive black holes revealed in merging galaxies
http://phys.org/news/2014-01-supermassive-black-holes-revealed-merging.html
"In this Universe, dark matter has a much higher mass than luminous matter, and it dominates the formation of galaxies and their large-scale structures. The widely accepted, cold-dark-matter based galaxy formation scenario posits that collisions and mergers of small gas-rich galaxies result in the formation of massive galaxies seen in the current Universe. Recent observations show that SMBHs with more than one-million solar masses ubiquitously exist in the center of galaxies. The merger of gas-rich galaxies with SMBHs in their centers not only causes active star formation but also stimulates mass accretion onto the existing SMBHs. When material accretes onto a supermassive black hole (SMBH), the accretion disk surrounding the black hole becomes very hot from the release of gravitational energy, and it becomes very luminous. This process is referred to as active galactic nucleus (AGN) activity; it is different from the energy generation activity by nuclear fusion reactions within stars. Understanding the difference between these kinds of activities is crucial for clarifying the physical processes of galaxy formation. However, observation of these processes is challenging, because dust and gas shroud both star-formation and AGN activities in merging galaxies. Infrared observations are indispensable for this type of research, because they substantially reduce the effects of dust extinction."
.
Galaksien keskusten supermassiivista kohteista ulos työntyvistä tihentymistä vain pieni osa kokee ulkoisen liikkeen takia voimakkaan laajenemisen ja näin vain pienestä osasta syntyy havaittavaa ainetta!
Kahdesta lähekkäin olevasta galaksin keskustan supermassiivisesta kohteesta ulos työntyvien tihentymien keskinäinen vuorovaikutus saa niiden sisäisen liikkeen / paineen voimistumaan matkan aikana ja näin havaittavaa vetyä jne!
Ei edes vaikea asia ymmärtää / hahmottaa!
:D
http://phys.org/news/2014-01-supermassive-black-holes-revealed-merging.html
"In this Universe, dark matter has a much higher mass than luminous matter, and it dominates the formation of galaxies and their large-scale structures. The widely accepted, cold-dark-matter based galaxy formation scenario posits that collisions and mergers of small gas-rich galaxies result in the formation of massive galaxies seen in the current Universe. Recent observations show that SMBHs with more than one-million solar masses ubiquitously exist in the center of galaxies. The merger of gas-rich galaxies with SMBHs in their centers not only causes active star formation but also stimulates mass accretion onto the existing SMBHs. When material accretes onto a supermassive black hole (SMBH), the accretion disk surrounding the black hole becomes very hot from the release of gravitational energy, and it becomes very luminous. This process is referred to as active galactic nucleus (AGN) activity; it is different from the energy generation activity by nuclear fusion reactions within stars. Understanding the difference between these kinds of activities is crucial for clarifying the physical processes of galaxy formation. However, observation of these processes is challenging, because dust and gas shroud both star-formation and AGN activities in merging galaxies. Infrared observations are indispensable for this type of research, because they substantially reduce the effects of dust extinction."
.
Galaksien keskusten supermassiivista kohteista ulos työntyvistä tihentymistä vain pieni osa kokee ulkoisen liikkeen takia voimakkaan laajenemisen ja näin vain pienestä osasta syntyy havaittavaa ainetta!
Kahdesta lähekkäin olevasta galaksin keskustan supermassiivisesta kohteesta ulos työntyvien tihentymien keskinäinen vuorovaikutus saa niiden sisäisen liikkeen / paineen voimistumaan matkan aikana ja näin havaittavaa vetyä jne!
Ei edes vaikea asia ymmärtää / hahmottaa!
:D
Vastaukset 1
Vanhimmat
Ihanko totta?
Mustista aukoista mitään työnny. Palstapelle.
Kuka on havainnut mustista aukoista tulevan vetyä? Ei kukaan.