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Mg II Spectra of Late Type Stars Used to Probe the LISMIUE spectra of Mg II h and k in late type dwarfs and giants were used to detect and measure absorption components due to the LISM. This technique gives a method of probing the awkward range from d = 3 pc to d = 80 pc from the Sun. In spite of interpretational uncertainties the HI component of the LISM can be plotted well enough to confirm it as a cloud some 20 to 30 pc in extent, peaking sharply in density towards l(II)-25 deg., moving towards the Sun from l(II)-25 deg, b(II) = + 10 deg., at 28 Km/sec. The hole towards l(II) = 150 deg is confirmed, suggesting a solar position close to the cloud's edge in this direction.
Document ID
19850007239
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Beckman, J. E.
(London Univ. Trieste, Italy)
Crivellari, L.
(Osservatorio Astronomico Trieste, Italy)
Franco, M.
(Inst. de Astronomia y Fisica de Espacio Trieste, Italy)
Molaro, P.
(Osservatorio Astronomico)
Vladilo, G.
(Osservatorio Astronomico)
Date Acquired
August 12, 2013
Publication Date
November 1, 1984
Publication Information
Publication: NASA. Goddard Space Flight Center Local Interstellar Medium, No. 81
Subject Category
Astrophysics
Accession Number
85N15548
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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