View source for Astronomy:Laser star model of quasars

The '''laser star hypothesis''' is a [[Hypothesis|hypothesis]] put forward by the physicist Y. P. Varshni in 1973 in response to several developments in astrophysical and earth-based research, and his belief that the existing body of work on [[Astronomy:Quasar|quasar]]s, or "quasi stellar objects," suffered fundamental difficulties.  It states that quasars are hot stars with strong stellar winds which are producing natural [[Physics:Laser|las]]ing. This model is contradicted by the current [[Physics:Astrophysics|astrophysical]] [[Philosophy:Scientific community|science community]] understanding that quasars are distant [[Active galactic nucleus|active galactic nuclei]].
==Publications==

* "Redshifts in quasi-stellar objects", Varshni, Y.P., Phys. Can., vol. 29, no. 24, pp.&nbsp;23–24, 1973
* "[http://adsabs.harvard.edu/abs/1975Ap%26SS..37L...1V Alternative explanation for the spectral lines observed in quasars]", Varshni, Y.P., Astrophys. Space Sci., vol. 37, no. 1, pp.&nbsp;L1-L6, 1975
* "[http://adsabs.harvard.edu/abs/1976Ap%26SS..45...87V Laser action in stellar envelopes]", Varshni, Y.P. and Lam, C.S., Astrophys. Space Sci., vol. 45, no. 1, pp.&nbsp;87–97, 1976
* "[http://adsabs.harvard.edu/abs/1976Ap%26SS..43....3V The red shift hypothesis for quasars: is the Earth the center of the universe? Part I]", Varshni, Y.P., Astrophys. Space Sci., vol. 43, no. 1, pp.&nbsp;3–8, 1976
* "[http://adsabs.harvard.edu/abs/1977Ap%26SS..51..121V The red-shift hypothesis for quasars: is the Earth the center of the Universe? Part II]", Varshni, Y.P., Astrophys. Space Sci., vol. 51, no. 1, pp.&nbsp;121–124, 1977

==External links==
* [http://laserstars.org/ Plasma Laser Astrophysics], ''John Talbot et al.'' - Plasma recombination lasers in rapidly cooled stellar atmospheres.
* [http://laserstars.org/history/index.html Timeline of History of Lasers], ''John Talbot'' - Noted are discoveries of laser action in quasars (1973), CO<sub>2</sub> lasers in the atmospheres of [[Astronomy:Mars|Mars]] and [[Astronomy:Venus|Venus]] (1981), far-infrared laser star by [[Astronomy:Kuiper Airborne Observatory|Kuiper Airborne Observatory]] (1995) and ultraviolet laser star by [[Astronomy:Hubble Space Telescope|Hubble Space Telescope]] (1996).
* [https://web.archive.org/web/20031210151559/http://www.phylab.mtu.edu/~rolewis/seminarbib.html#banbar Plasma laser star model of QSOs], ''Banerji, S. and Bhar, G.C.'' - Highlights striking corroboration between laser-star predicted emissions and observed spectra of quasars (QSO's).
* [http://laserstars.org/pdf/index.html Plasma Laser Stars], ''Varshni, Y. P.'' - Comprehensive outline of laser star hypotheses and numerous abstracts. Beginners to the laser star hypothesis might find this to be a complete source in itself for learning about laser stars.
* [http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1985Ap&SS.117..337V The quasar 0805 + 046 as a helium-rich shell star], ''Varshni, Y. P.'' - Abstract describing correlation between predictions of laser star hypotheses and observable reality.

[[Category:Obsolete theories in physics]]
[[Category:Quasars|*]]

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