AboutPhilip A. Stahl Expertise I specialize in stellar and solar astrophysics. Can answer any questions pertaining to these areas, the spectroscopic analysis of stars – as well as the magneto-hydrodynamics of sunspots and solar flares. Sorry – No homework problems done or research projects! I will provide hints on solutions.
Experience Have published papers on the relationship between sunspot morphology and solar flares; discovery of SID flares related to this, constructed computerized stellar models; MHD research.
Organizations American Astronomical Society (Solar physics and Dynamical astronomy divisions), American Geophysical Union, American Mathematical Society, Intertel.
Publications Solar Physics, Journal of the Royal Astronomical Society of Canada, Journal of the Barbados Astronomical Society, Meudon Solar Flare Proceedings (Meudon, France)
Education/Credentials B.A. degree in Astronomy; M.Phil. degree in Physics - specializing in solar physics.
Awards and Honors Postgraduate research award- Barbados government; Studentship Award in Solar Physics - American Astronomical Society
Question sir,
what does latest research guide on the subject i mentioned above?
is there any boundry of universe?
Answer Hello,
There is no firm answer yet to whether the universe has a "boundary". This is because more cosmological tests need to be made. It also means that different quantum gravity models need to be examined in more detail.
These issues are far more complex than a simple answer would allow, so I suggest trying to get hold of the following to read and learn more:
1) Stephen Hawking's book, 'A Brief History of Time', chapter 8, 'The Origin and Fate of the Universe', in which he goes into his "no boundary" proposal for the cosmos.
2)ASTRONOMY magazine, April 2009, with feature article 'Why the Universe had no Beginning' (p. 28)
3) ASTRONOMY magazine, June 2009, with feature article 'HOW we could see Another Universe', p. 24
4) ASTRONOMY magazine, May 2007, feature article, 'Cosmology's 5 Big Things You Need to Know'.
I believe if you consult all these you will get a much better idea of the boundary concept (as it applies to the universe) and how it might be approached than anything I could give you in even 1 mb.
