Gamma-Ray Astrophysics; a Symposium Held At Nasa Goddard Space Flight Center, April 30 to May 2, 1973
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256 THEORY I would also like to ask a question of Stecker that is related to all of this: The Copernicus results seem to indicate a large amount of molecular hydrogen in interstellar space, perhaps as much as the atomic hydrogen which is indicated by the 2 1 -centimeter observations. A factor of 2 or so increase in the gas density would seem to bring the results for the 7-ray production rate per hydrogen atom below what Cavallo and Gould have suggested and even below the rate Stecker suggested.... Does Stecker have any comments about that?
Stecker: Yes. I'm glad you asked that. A factor of 2 was exactly what Ted Stecher and I said was needed in order to explain the OSO-3 measurements, and therefore we did postulate a significant amount of molecular hydrogen and gave argu- ments for it a couple of years ago {Nature, 226, p. 1234, 1970; see also Nature, 222, p. 865, 1969).
With regard to the number of cosmic rays at the galactic center and the gas at the galactic center, let me add that in the same paper we estimated that we could only explain about half of the flux seen in the direction of the galactic center on the basis of an increased gas density.
What to read after Gamma-Ray Astrophysics; a Symposium Held At Nasa Goddard Space Flight Center, April 30 to May 2, 1973?
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To quickly assess the difficulty of the text, read a short excerpt:
256 THEORY I would also like to ask a question of Stecker that is related to all of this: The Copernicus results seem to indicate a large amount of molecular hydrogen in interstellar space, perhaps as much as the atomic hydrogen which is indicated by the 2 1 -centimeter observations. A factor of 2 or so increase in the gas density would seem to bring the results for the 7-ray production rate per hydrogen atom below what Cavallo and Gould have suggested and even below the rate Stecker suggested.... Does Stecker have any comments about that?
Stecker: Yes. I'm glad you asked that. A factor of 2 was exactly what Ted Stecher and I said was needed in order to explain the OSO-3 measurements, and therefore we did postulate a significant amount of molecular hydrogen and gave argu- ments for it a couple of years ago {Nature, 226, p. 1234, 1970; see also Nature, 222, p. 865, 1969).
With regard to the number of cosmic rays at the galactic center and the gas at the galactic center, let me add that in the same paper we estimated that we could only explain about half of the flux seen in the direction of the galactic center on the basis of an increased gas density.
What to read after Gamma-Ray Astrophysics; a Symposium Held At Nasa Goddard Space Flight Center, April 30 to May 2, 1973?
You can find similar books in the "Read Also" column, or choose other free books by American Physical Society to read onlineMoreLess
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