Astronomy and the Chile earthquake

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Pretty Valaparaiso in 2005

I noticed a lot of traffic to the blog today from google searches for people looking for info on the fate of the telescopes in Chile after last weekend’s huge earthquake that has devastated the central part of the country. The bottom line is that they all seem to be fine – although let’s not forget that the damage to Chile’s infrastructure could easily pay for hundreds of VLTs. As for the lives lost, well, no hardware can replace those.

On a personal note, my only experience of earthquakes dates back to 2005, while observing at Gemini South at Cerro Pachon, near La Serena in Chile. In our week-long observing run we suffered 2 earthquakes of magnitudes 5.8 and 5.0 or so, if I remember correctly. Our telescope operator, recognising the distant rumble, gave us a few seconds’ warning that a quake was under way, giving me ample time to freak out completely. Having just escaped the London bombings a few weeks earlier, I guess my nerves were pretty shot, but it was still pretty scary. I can only imagine how terrifying a magnitude 8+ quake must be when you’re sound asleep in your home at 3 am and I truly hope I never get to find out.

Anyway, here’s a round-up of some of the statements released by the astronomy organisations with bases in the country.

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On Software in Astronomy

Importance of the Hubble archive. The number of archival papers has exceeded the number of PI-led papers since 2006 (from White et al., 2009)

ResearchBlogging.org
I’ve been giving some thought to software development in astronomy, which is a difficult topic. All astronomers agree that good data processing, and hence good software, is crucial to doing rigorous science. To interpret observational data, to translate electrons on a detector to scientific knowledge, requires a solid understanding of the instrument, the observing conditions, and of the exact process with which the data were treated. Many large ground- and space-based observatories, like those run by ESO, Gemini and NASA, strive to provide the community with “science-ready” data. This means that the data are processed to remove all instrumental signatures, allowing astronomers to dive straight into the analysis.

The rationale is that providing science-ready data essentially makes them usable by a much wider community than those involved in the observing campaign, or those used to working with a given instrument. Indeed, a big driver behind the global Virtual Observatory initiative is the “democratisation of astronomy” by providing anyone in the world with ready-to-use astronomical data, irrespective of their location or affiliation to large organisations.

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