Quasars and modern Astronomy

Quasars , what the heck are they ?

Quasistellar objects, or quasars, were defined originally as star-like objects of large redshift. Today,
quasars are considered to be the most luminous members of the general class of objects called active galactic nuclei, or AGNs. Quasars are the brightest objects in the universe

We know about quasars because of observations from telescopes.

They are highly luminous and active, from which grow into active galaxies.

There is a lot of activity going on these quasars, matter formation, star creation.

Quasars
Quasars

We google Quasars and get from Wiki

“Quasars or quasi-stellar radio sources are the most energetic of a class of objects called active galactic nuclei (AGN). Quasars are extremely luminous and were first identified as being high redshift sources of electromagnetic energy, including radio waves and visible light, that appeared to be similar to stars, rather than extended sources similar to galaxies. Their spectra contain very broad emission lines, unlike any known from stars, hence the name “quasi-stellar.” Their luminosity can be 100 times greater than that of the Milky Way.”

Which is basically telling us, these things pump out energy !!

Then it all turns pear shaped with the media and Astronomy, they go on to say, as if on the drive for research dollars. “Most quasars were formed approximately 12 billion years ago caused by collisions of galaxies and their central black holes merging to form a supermassive black hole.”

A classic example of this is microquasar IGR J17091-3624. Once again if we look the IGR number up we get, from Wiki a Black hole and you may find in a  number of science article they refer to this system as proof of a black hole !

Is there any rational discussion about this system going on ?

Well yes but I suppose it depends how far you want to venture down the rabbit hole. Well it didn’t take me long and I found.

“Microquasar IGR J17091-3624 exhibits faint, quasi-periodical outbursts of the period between 5 and 70 seconds and regular amplitudes, frequently referred to as the
’heartbeat state’. ”

From here

http://xmm.esac.esa.int/external/xmm_science/workshops/2014symposium//presentations/MGrzedzielski_p.pdf

Quasars what are they ?

The Astrophysical Journal, 553:L11–L13, 2001 May 20

X-RAY–EMITTING QSOs(Quasars)  EJECTED FROM ARP 220

G QSOs EJECTED FROM ARP 220
H. C. Arp
Max-Planck-Institut fu¨r Astrophysik, Karl-Schwarzschild-Strasse 1, 85741 Garching, Germany
E. M. Burbidge
University of California San Diego Center for Astrophysics and Space Sciences, La Jolla, CA 92093-0424
and
Y. Chu and X. Zhu
Center for Astrophysics, University of Science and Technology of China, Hefei, Anhui 230026, China
Received 2001 February 6; accepted 2001 April 11; published 2001 May 8

 All of the evidence suggests that these QSOs have been ejected from z p 1.25
Arp 220 and have large intrinsic redshifts.

http://iopscience.iop.org/1538-4357/553/1/L11/pdf/015086.web.pdf

Well they are not black holes.

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