Genau darum dreht es sich ja, da steht das es sich nicht um eine Supernova handelt,smokingun schrieb:die du nicht gelesen hast sonst wüsstest du dass mein oberes Zitat aus deren stammt.
Neutronensterne sind Pulsare oder Magnetare, keine Quasare...
Quelle Wikimaxtron schrieb:Die Emission der aufgeheizten Akkretionsscheibe ist das, was man als typische Strahlung des Quasars beobachtet.
Da Du keine Ahnung hast findest Du den Fehler nicht im Artikel bei heise, nicht das
Zitat aus DEINEM link:
Ausserdem gibts mehr als nur diesen Zeitungsartikel darüber zu lesen!
A microquasar consists of a binary system in which a normal star orbits around, and loses matter to, a nearby compact object, either ablack hole or a neutron star
Ja genau und du darfst wenn ich dich anspucke vor Gericht aussagen es war die Spucke und nicht smokingun...
A microquasar consists of a binary system in which a normal star orbits around, and loses matter to, a nearby compact object, either ablack hole or a neutron starJa genau, deswegen ist aber ein Schwarzes Loch oder ein Neutronenstern kein
Alleine das zeigt mir das Du nur viele Phrasen drischt, aber nichts verstehst...
Nicht nur Lesen, verstehen ist wichtiger @smokingun .... ;) da reicht auch
Mit Hilfe des europäischen Röntgenteleskops XMM Newton konnten europäische Astronomen nachweisen, dass sich wohl tatsächlich ein Schwarzes Loch im Inneren eines Mikroquasars verbirgt.
oder ein Neutronenstern kein Quasar,
Wobei? Beim verwirrung stiften?
Die Astrophysiker sind noch immer verblüfft. Zu einer herkömmlichen Supernova will das Phänomen nicht so Recht passen. Denn während die Emission aus M82 seit einem Jahr konstant ist, werden bisher beobachtete Supernova-Wellen über die Zeit immer schwächer. Auch die Ausbreitungsgeschwindigkeit, die das Vierfache der Lichtgeschwindigkeit beträgt, macht die Wissenschaftler stutzig. So lag schnell die Vermutung nahe, dass es sich bei der Erscheinung um ein schwarzes Loch bzw. einen Microquasar, einen Neutronenstern, handeln könnte.Sonst noch fragen?
Na, nicht immer von Dir auf andere schliessen.... ;)
Na, was is denn nun mit dem Artikel von Grenzwissen....wo ist denn
Wir warten auf Deinen Kommentar, was ist jetzt falsch an dem Artikel?
Dann schauen wir doch mal den Original Artikel an:
There is something strange in the cosmic neighbourhood. An unknown object in the nearby galaxy M82 has started sending out radio waves, and the emission does not look like anything seen anywhere in the universe before.Also ich lese hier nichts von einem Neutronenstern, oder neutron-star..... ;)
"We don't know what it is," says co-discoverer Tom Muxlow of Jodrell Bank Centre for Astrophysics near Macclesfield, UK.
The thing appeared in May last year, while Muxlow and his colleagues were monitoring an unrelated stellar explosion in M82 using the MERLIN network of radio telescopes in the UK. A bright spot of radio emission emerged over only a few days, quite rapidly in astronomical terms. Since then it has done very little except baffle astrophysicists.
It certainly does not fit the pattern of radio emissions from supernovae: they usually get brighter over a few weeks and then fade away over months, with the spectrum of the radiation changing all the while. The new source has hardly changed in brightness over the course of a year, and its spectrum is steady.
Warp speed
Yet it does seem to be moving – and fast: its apparent sideways velocity is four times the speed of light. Such apparent "superluminal" motion has been seen before in high-speed jets of material squirted out by some black holes. The stuff in these jets is moving towards us at a slight angle and travelling at a fair fraction of the speed of light, and the effects of relativity produce a kind of optical illusion that makes the motion appear superluminal.
Could the object be a black hole? It is not quite in the middle of M82, where astronomers would expect to find the kind of supermassive central black hole that most other galaxies have. Which leaves the possibility that it could be a smaller-scale "microquasar".
A microquasar is formed after a very massive star explodes, leaving behind a black hole around 10 to 20 times the mass of the sun, which then starts feeding on gas from a surviving companion star. Microquasars do emit radio waves – but none seen in our galaxy is as bright as the new source in M82. Microquasars also produce plenty of X-rays, whereas no X-rays have been seen from the mystery object. "So that's not right either", Muxlow told New Scientist.
His best guess is still that the radio source is some kind of dense object accreting surrounding material, perhaps a large black hole or a black hole in an unusual environment. Perhaps the phenomenon also happens occasionally in our galaxy, but is more common in M82 because it is a "starburst" galaxy – a cosmic cauldron where massive stars are forming and exploding at a much higher rate than in the Milky Way, creating a lot of new black holes.
The new source could be the first radio detection of an extragalactic ‘micro-quasar’. Examples of such systems within the Milky Way are found as X-ray binaries with relativistic jets ejected from an accretion disk around a collapsed star fuelled with material dragged from a close binary companion. However, this object would be brighter than any Galactic example yet detected, has lasted months longer than any known X-ray binary, and lies at a position in M82 where no variable X-ray source has been yet been detected.Aha...eine Akkretionsscheibe um einen Kollabierten Stern, also ein Pulsar speist
M82Schön das du herausgefunden hast dass ein Neutronenstern kein Quasar ist
The nearby starburst galaxy M82 is a fascinating and spectacular example of a galaxy in which stars are being created. This burst of star-formation has been triggered by a near collision with its massive neighbouring spiral galaxy M81 and has been continuing for the past few millions of years. The central region of M82 is a very violent place with newly-formed high mass stars exploding in spectacular supernovae – a new explosion occurring every 20 to 30 years. For over 20 years astronomers at the University of Manchester observatory at Jodrell Bank have used the high-angular resolution imaging array MERLIN and the more widely-spaced European network of radio telescopes(EVN) to monitor the development and expansion of many recent supernova remnants in the nuclear region of M82. These were formed by supernova explosions within the last few hundreds of years. The ejected material is found to be expanding outward from the site of the explosion with velocities typically in excess of 10,000 km/s.
THE NEW OBJECT
As part of the monitoring programme, MERLIN observations detected a new faint point-like source of radio waves which appeared at the beginning of May 2009. The new object is 100 times fainter in the radio than the previous supernova explosions seen in M82 and, if it is a new supernova, it is clearly not of the same type. It is about the correct brightness to be a faint (type II) radio supernova, some nearby examples of which have been detected in the radio, however the very rapid turn on, its spectral characteristics, and lack of any significant decay in its flux density over the first 150 days of monitoring make this such a strange type II supernova, that this explanation is unlikely to be true.
Ich schreibe das schon die ganze Zeit, wärend Dir die Fehler in den Artikeln nicht
Ach ja, Du meintest es wäre eine Sonne die um ein Schwarzes Loch kreist.... ROFL
Wo zweifel ich denn was an, das soll also ein Micro Quasar sein.... ;)
Das ist Deine Meinung, wir warten aber immer noch darauf wie Du aufzeigst
