Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998apj...493..494h&link_type=abstract
Astrophysical Journal v.493, p.494
Astronomy and Astrophysics
Astronomy
7
Sun: Activity, Sun: Chromosphere, Sun: Infrared, Sun: Uv Radiation
Scientific paper
We have monitored the Sun through a large portion of the near-IR, optical, and near-UV spectrum since late 1993 as part of our long-term observing program with the Solar-Stellar Spectrograph (SSS) at Lowell Observatory. In this paper we present our database through early 1997, which covers the end of solar cycle 22 and the first months of cycle 23. Our goals in this paper are fourfold: (1) to establish the absolute consistency of our data using an automated, completely objective reduction protocol, (2) to establish a calibration to physical flux across the entire SSS spectrum for our solar data, (3) to examine the record of the main chromospheric activity indicator, Ca II K, in our data, and (4) to search for the Sun's rotational signal in our data set, to the end that clear detection of the solar rotation at activity minimum would bode well for our ability to detect rotational signals in other, more active stars. Further analysis and modeling of these solar data will appear in forthcoming papers in this series.
Hall Jeffrey Clifton
Lockwood Wesley G.
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