منابع مشابه
Polarimetric observations of southern hemisphere young solar-type stars
A report is given on some linear and circular polarimetric observations of young solar-type stars. Despite a somewhat high level of instrumental polarization, the measurements were able to detect polarizations ∼ 0.0001 or 0.01%. Temporal variability has been discovered for 59 Vir with an indication that circular polarization is also present. A polarization at a level of p ∼ 1% was found associa...
متن کاملObservations of mesospheric gravity wave dynamics in the southern hemisphere
Observations of mesospheric OH rotational temperature by the Mesospheric Temperature Mapper located at Cerro Pachon, Chile (30.3°S, 70.7°S) show a large range of variation. Temperature variances reveal increased activity due to mountain waves. Comparative studies with the satellite carried SABER instrument show agreement on nightly, as well as seasonal, temperature measurements. Comparisons wit...
متن کاملRadio observations of IRAS selected southern hemisphere classical Be stars
We present the first radio observations of a sample of 13 optically and IR bright southern hemisphere classical Be stars made from the Australian Telescope Compact Array at 3.5cm and 6.3cm simultaneously. One star, δ Cen was detected at 3.5cm and a second, µ Cen was also thought to have been detected; further observations of this source are required to confirm this detection. No sources were de...
متن کاملWindSat polarimetric microwave observations improve southern hemisphere numerical weather prediction
WindSat was launched in 2003 and is the first satellite-borne fully polarimetric microwave radiometer (Gaiser et al. 2004). This is an early report indicating the potential benefit of polarimetric microwave observations from this instrument. Initial studies examining the impact of WindSat polarimetric microwave observations when assimilated into a version of the National Centers for Environment...
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ژورنال
عنوان ژورنال: Highlights of Astronomy
سال: 2002
ISSN: 1539-2996
DOI: 10.1017/s1539299600013654