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J/A+AS/119/153 La Silla Observatory sky brightness 1978-1988 (Mattila+ 1996)
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Sky brightness at the ESO La Silla Observatory 1978 to 1988.
Mattila K., Vaisaenen P., Appen-Schnur G.F.O.v.
<Astron. Astrophys. Suppl. Ser. 119, 153 (1996)>
=1996A&AS..119..153M (SIMBAD/NED BibCode)
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ADC_Keywords: Earth
Keywords: atmospheric effects - site testing - techniques: photometric -
interplanetary medium
Description:
We have measured the sky brightness at the European Southern
Observatory (ESO), La Silla, during 40 moonless nights in the years
1978-1988. Most of the measurements were performed in five
intermediate band filters between 3500 and 5470A, including the
Stroemgren u, b, and y bands. In addition we made measurements in the
uvgr and BVRI photometric systems. Typically 20 to 40 readings were
obtained each night at a fixed ({alpha}, {delta}) position, selected
to be free of stars down to a limiting magnitude of B=~20. The sky
brightnesses were calibrated using standard stars. We discuss the sky
brightness variations both during individual nights and from year to
year. We have found that the long-term variations are well correlated
with the solar activity, for which the 10.7cm radio flux is used as a
measure. We compare the sky brightnesses as observed at La Silla with
the published values for several other sites. Finally, based on the
tight correlation of the airglow variations in two pass bands near
4000A we propose a new method for the separation of airglow and
zodiacal light contributions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
fig3a1.ps 76 538 Intermediate-band filters night sky brightness
fig3a2.ps 76 582 Intermediate-band filters night sky brightness
fig3a3.ps 76 588 Intermediate-band filters night sky brightness
fig3a4.ps 76 446 Intermediate-band filters night sky brightness
fig3a5.ps 76 457 Intermediate-band filters night sky brightness
fig3a6.ps 76 498 Intermediate-band filters night sky brightness
fig3a7.ps 76 543 Intermediate-band filters night sky brightness
fig3a8.ps 76 496 Intermediate-band filters night sky brightness
fig3a9.ps 76 437 Intermediate-band filters night sky brightness
fig3a10.ps 76 474 Intermediate-band filters night sky brightness
fig3a11.ps 76 548 Intermediate-band filters night sky brightness
fig3a12.ps 76 547 Intermediate-band filters night sky brightness
fig3a13.ps 76 509 Intermediate-band filters night sky brightness
fig3a14.ps 76 525 Intermediate-band filters night sky brightness
fig3a15.ps 76 431 Intermediate-band filters night sky brightness
fig3a16.ps 76 649 Intermediate-band filters night sky brightness
fig3a17.ps 76 762 Intermediate-band filters night sky brightness
fig3a18.ps 76 536 Intermediate-band filters night sky brightness
fig3a19.ps 76 721 Intermediate-band filters night sky brightness
fig3a20.ps 76 754 Intermediate-band filters night sky brightness
fig3a21.ps 76 727 Intermediate-band filters night sky brightness
fig3a22.ps 76 741 Intermediate-band filters night sky brightness
fig3a23.ps 76 722 Intermediate-band filters night sky brightness
fig3a24.ps 76 691 Intermediate-band filters night sky brightness
fig3b1.ps 76 438 BVRI filters night sky brightness
fig3b2.ps 76 408 BVRI filters night sky brightness
fig3b3.ps 76 647 BVRI filters night sky brightness
fig3b4.ps 76 609 BVRI filters night sky brightness
fig3b5.ps 76 800 BVRI filters night sky brightness
fig3b6.ps 76 753 BVRI filters night sky brightness
fig3b7.ps 76 862 BVRI filters night sky brightness
fig3b8.ps 76 811 BVRI filters night sky brightness
fig3c1.ps 76 1562 uvgr filters night sky brightness
fig3c2.ps 76 453 uvgr filters night sky brightness
fig3c3.ps 76 2225 uvgr filters night sky brightness
fig3c4.ps 76 552 uvgr filters night sky brightness
fig3c5.ps 76 2181 uvgr filters night sky brightness
fig3c6.ps 76 549 uvgr filters night sky brightness
fig41-3.ps 76 1095 Correlations between intensities of different
bands with the y band
fig44-7.ps 76 1872 Correlations between intensities of different
bands with the y band
fig48-11.ps 76 2427 Correlations between intensities of different
bands with the y band
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Note on fig3a : The unit is 10^-9^ergs/cm^2^/s/sterad/0.1nm
Note on fig3b : The unit is S_10, the colour indices B-V, V-R, V-I and R-I
are shown as well
Note on fig3c : The unit is S_10, the colour indices u-v, v-g and g-r are
shown as well
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See also:
J/A+AS/112/99 : Calar Alto Observatory sky brightness measurements
Courtesy: Petri Vaisanen <pvaisane@mars.harvard.edu>
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(End) Patricia Bauer [CDS] 25-Mar-1996