ExoVis, the winner of the 2013 Open Exoplanet Catalogue visualization contest, is an exosystem visualizer programmed by Tom Hands, a PdD student at the University of Leicester. It’s quite elegant. ExoVis has been added to our list of Web Resources and Tools.
Streams Going Notts: The tidal debris finder comparison project popped up on arXiv recently. This paper, which has been added to our thread for papers of possible interest, discusses testing four codes, S-Tracker, VELOCIraptor (formerly known as the STructure Finder, STF), ROCKSTAR, and HOT6D, to determine how well they find tidal debris in a fully cosmological Milky Way type simulation. The paper compares the algorithms used by the codes and quantifies the findings.
As those familiar with the ASCL know, those working on it take an active approach to sharing astrophysical source code, ferreting out codes, looking for their download sites, and creating entries for them in the ASCL. We welcome and indeed (enthusiastically!) encourage code authors to create entries for their codes, but most of the indexing of codes is currently done by ASCL associate editor Kim DuPrie and me.
I regularly read through pre-prints looking for mention of codes not yet indexed by the ASCL; Advisory Committee Chairman Peter Teuben does the same. He has access to publications I cannot get to, such as MNRAS, and looks there for codes as well. A paper may yield a code new to the ASCL, and sometimes, a paper will reveal what Peter and I refer to as Russian dolls: the deeper we get into a paper, the more codes it reveals. One paper he sent to me recently revealed 37 (!) codes, only 5 of which the ASCL had indexed. Thirty-two new codes to try to find!
Other times, a paper will mention two or three or more codes which lead us to other papers which mention yet more codes, which lead us to papers which mention even more codes… and though the ASCL indexes over 600 codes, there are still hundreds, probably thousands, out there it hasn’t indexed, so some of these more more MORE codes that we come across also need to be found. Like Russian nesting dolls, the codes go on and on and on.
It’s times like that — finding 32 new codes in just one paper! peeling back layers and layers of new codes! — I wish I could work on the ASCL full-time. Well, also the times I look at the list we’d already compiled (a list I stopped adding to over a year ago) of ~ 200 codes to find. Also the times I look at the list of things still to be done for/on/about the ASCL beyond indexing new codes.
So many codes, so little time to spend on them, alas!
Idly browsing through Google Analytics statistics on the ASCL, I pulled out pageviews by country, these just of the ASCL forum on Asterisk for this month so far. Of the 4,843 pageviews, 1,939 (40%) are from the US, which means of course that 60% are not. People from eighty-three countries have accessed the code entries forum; I’ve tagged the pie slices below of the ten countries with at least 2% of the total pageviews. Click on the pie to see the chart at full size.
March pageviews by Country, as of 3/25/2013
Posted in codes, news, stats
Advisory Committee member Bruce Berriman has a nice post about the ASCL on his excellent Astronomy Computing Today blog.
Gyula Józsa has been updating TiRiFiC and fixing minor bugs, and has added features and made the code standalone software, no longer requiring GIPSY; instead, input files are in FITS format now. You can be alerted to updates by subscribing to the TiRiFiC thread on the ASCL.
Peter Teuben reported on the ASCL that an updated version of ZEUS-MP (V1.5) has been made public by the U.Maryland group. Please find the updated version here: http://www.netpurgatory.com/zeusmp.html
He also provided an additional download site for new code GRID-core.
If you would like to receive an email whenever a new post is made on the ASCL forum which houses the code entries, instructions for subscribing to the forum are available.
The ASCL has a new home page! ascl.net continues to be the permalink but now redirects to the index page of this site, which provides easy navigation and access to information. Code entries remain on the Asterisk phpbb, which offers full-text searching capability and subscription service.
Suggestions for improving the resource are always welcome! They can be made here or emailed to email@example.com.