Thursday, October 18, 2012

Talk in Vienna - Part 2


Unfortunately I could not comment on the visit to Vienna on a daily basis ... too tired at the end of the day to do anything!

The visit was great! On sunday Miguel picked me up and we walked around the town and then to his nice place. I was very happy, first that he's got this long term position, second that he's settling down good there in Vienna.

Monday was "hi folks, this is Cris" time. Met Paul, amazingly nice guy, it will be a pleasure to do this collaboration with him. Lunch with Bodo's group and talk in the afternoon.

Talk was good, I guess people liked it, there were some questions, nice ones good feedback. After the talk we already sat and started with wavelets. The whole theory on the topic, the math, the digital filtering and so on. Overflow of information to Paul, Miguel and Steffi and a nice review for me (man! it has been a while I haven't seen this topic). At the end, my goal was that they get the idea on what are and how wavelets work. Then we left for the post-talk dinner. Nice Wiener Schnitzel in a typical restaurant. Bad news was rainy evening. Hmmm ... walk in the city center got canceled.

Tuesday started soon, another talk at 9:30 (and rain). Now the idea was archive usage, I ended up doing what ESO should have done and advertised some of the new features, which were totally unknown to people. Also a proto talk on databases in astronomy. This is something I would like to pursue. People using databases puts some overhead in the start (there's a process and language learning), but it pays off in time when your work gets easier and more organized. Several questions and some feedback that showed me both topics were worthwhile.

After the morning talk me al Paul discussed our future observations, more on observational strategy, so that we maximize results on studying diffuse light. After lunch we started again the wavelets massacre. Now the code usage and data analysis. That was quite long, tiresome (for them) but I hope it was worth. They are good and understood the thing. It's basically "model-detect-reconstruct-assemble".

At night a nice dinner at Bodo's and chatting about the last 3 years :-) Afterwards I was too tired and it was already too late (and the weather was still to bad) for a night walk in the city ... next time.

Wednesday was quite a short day. It started with some early tourism (woke up at 6:30 so I would have time for it) and then a final discussion with Paul and with Steffi about her thesis. Too bad we didn't have more time to discuss it, but she's a bright young girl (and I'm the old guy saying this) and knows pretty well what to do, for the moment. Lunch brought some ideas. Let's see how it goes.

In summary. A nice and inspiring week.

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Sunday, October 14, 2012

Talk in Vienna


It's been a while that I don't do science on a daily basis ... life goes on, but some science is been made :-)

A collaboration paper came around, another one is submitted, assisting Stefi (Bodo Ziegler's student in Vienna), just not much on my beloved compact groups from my side.

A post-doc from Bodo (Paul Eigenthaler) got interested in our wavelet method (OV_WAV) and would like to use it on fossil groups. Nice follow up! We (mostly him) wrote some proposals, let's hope we get data. He's moving to Chile at the end of the month so Bodo invited me for a talk/collaboration meeting in Vienna.

It's been a while from my last science travelling, so it'll be fun. Also great to see old friends (Bodo, Miguel Verdugo, Steffi) and meet new people (like Paul). Also a great chance to walk around Vienna and take some nice pictures :-)

In addition to talk about compact groups, intragroup light and dynamical evolution, the idea is to teach Paul, Stefi and eventually Miguel, how to use the OV_WAV. Is a nice piece of code, but it's not the easiest thing to use and requires A LOT of human interaction. The results are TOTALLY worth.

I'll probably also talk about some tutorial on using ESO's archive, not any official thing, just my take and tips as advanced and long time user, on using the new features they have. Tell people that using databases is cool and good. My office mate, some months ago came with a comment that is killer on the topic "if I knew databases when I was doing my PhD, everything would have been easier and faster. And some of the math and theory on the wavelets method. It's not a must know, but it helps if you know what's being done.

I'll try to keep posting during the week.

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