Astronomy and Astrophysics – Astronomy
Scientific paper
May 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...444..874c&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 444, no. 2, p. 874-878
Astronomy and Astrophysics
Astronomy
71
Astronomical Models, Displacement, Galactic Structure, Infrared Astronomy, Solar Position, Infrared Astronomy Satellite, Sky Surveys (Astronomy), Star Distribution, Stellar Systems
Scientific paper
I determine the displacement of the Sun from the Galactic plane by interpreting IRAS point-source counts at 12 and 25 microns in the Galactic polar caps using the latest version of the SKY model for the point-source sky (Cohen 1994). A value of solar zenith = 15.5 +/- 0.7 pc north of the plane provides the best match to the ensemble of useful IRAS data. Shallow K counts in the north Galactic pole are also best fitted by this offset, while limited FAUST far-ultraviolet counts at 1660 A near the same pole favor a value near 14 pc. Combining the many IRAS determinations with the few FAUST values suggests that a value of solar zenith = 15.0 +/- 0.5 pc (internal error only) would satisfy these high-latitude sets of data in both wavelength regimes, within the context of the SKY model.
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