Author Archives: Tom

SkyView v3.2.0: Some survey data removed from jar

SkyView-in-a-Jar users will note that the new v3.2.0 SkyView jar is much smaller than the earlier versions, under 4 megabytes compared to over 15 megabytes for v3.1.21. Part of the reason is that the way we access some older surveys … Continue reading

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SkyView v3.2.0 Preview: Summary

Next week we will be releasing version 3.2.0 of SkyView. You can play with it right now if you specify the version v3.2.0 in the SkyView URL, but it’s still being tested. There are several major changes in this release … Continue reading

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AKARI and TGSS ADR1 in SkyView: V3.1.20

Two new surveys sets have been added to the next release of SkyView (v3.1.20): Four new infrared all-sky surveys taken by the AKARI FIS (wavelengths between 60 and 160 microns) are now available. We have also added the TGSS ADR1 … Continue reading

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SkyView update to FIRST survey

We have just released V3.1.19 of SkyView. The only major change is an update to the FIRST survey which incorporates the latest data available at the MAST archive at the Space Telescope Science Institute. There is a bit more coverage … Continue reading

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Skyview V3.1.16: Effelsberg-Bonn HI Survey

We have just released a new version of SkyView which adds the Effelsberg-Bonn HI survey: measuring the HI column density for the entire sky north of -6 declination with unprecedented resolution and sensitivity.   Look for the EBHIS survey in the … Continue reading

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Lanczos Normalization Error

The Lanczos sampler is a truncated version of the optimal sampling function, sinc(x). The kernel of this sampler is given as f(x) = sinc(pi x) sinc(pi x/n)    |x| < n 0    |x| >= n Here x is given in … Continue reading

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Updated Fermi SkyView Surveys.

In the next few days we’ll be updating the Fermi survey datasets. The updates include data through week 379 of the mission (in October). This adds several years of data since we last updated Fermi early in 2012. Unlike the … Continue reading

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SkyView V3.1.13: SkyView-in-a-Jar bug fixes.

We’ve just released new version of SkyView that fixes a couple of bugs associated with using SkyView-in-a-Jar. Users of the web pages should not see any changes. There is a batch mode option in the jar which allows many requests … Continue reading

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V3.1.10: WISE now uses All-WISE data

We’re getting ready to release the next version of SkyView. The only significant change is an update to the WISE datasets which will now point to the All-WISE data release. This provides significantly deeper coverage in some areas and bands … Continue reading

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SkyView v3.1.8 with GALEX DR7 released.

A new version of SkyView, v3.1.8, has been installed as the default version. The significant change from the user perspective is that the GALEX DR7 is included. New data is mostly in the NUV. To access these data through SkyView-in-a-Jar … Continue reading

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