... Introduction It may seem counterintuitive that X-ray astronomy should give any insights into planetary systems: planets, and their natal protoplanetary disks (PPDs), have temperatures which are far to o co ol (100 - 1500 K) to emit X-rays. ... The resulting X-ray emission gives unique insights into the solar activity, planetary atmospheres, cometary comae, charge exchange physics, and space weather across the Solar System (review by Bhardwa j et al. 2007). ... 2007; Gudel 2007). ... 2007, Planet. ...

... Solar X-rays: . ... http://sec.noaa.gov/Data/#reports . ... http://dxlc.com/solar/(!) -10cm and sunspots charts, latest flare reports . ... AP = alpha*p All the magnetic measures in the group are of the same polarity which is that corresponding to the preceding spots in that hemisphere for that cycle. ... Statements will be added to the above classification if the group is also of the "D = delta-configuration": spots of opposite polarity within 2 1/2 degrees of one another and in the same penumbra. ...

Subj: Non-detection of Fragment B We are observing at Palomar with the 200-inch Hale telescope, using a 7.9 micron imaging spectrometer in imaging mode and a 256x256 InSb at 2.35 microns. ... Subj: Negative observations of B impact from ESO La Silla Continuing observations with TIMMI at 9um on the 3.5m telescope and IRAC 2B at 2.2um on the 2.2m at ESO La Silla show that nothing was seen over the predicted impact site B up to 3:35UT, 17 July. ... The impact site has also been monitored at 2.20 microns. ...