Category Archives: poster

ASCL poster as IAU 2018 General Assembly

ASCL poster for IAU 2018 meeting

Abstract: Astrophysics research relies on software and all robust science requires transparency and reproducibility, yet the computational methods used in our discipline are often not shared or are difficult to find. In recent preliminary research, 40% of the software used in the 2015 papers we examined did not offer source code and restricting the reproducibility of this research. The Astrophysics Source Code Library (ASCL. ascl.net) registers astrophysics research source codes that have been used in refereed research, benefiting the field in numerous ways, including increasing the discoverability of software and making the published research record more robust. With over 1,700 codes, the ASCL is the largest indexed resource for astronomy research codes in existence. This free online registry was established in 1999 and is indexed by ADS and Web of Science. ASCL registration allows your software to be cited on its own merits and provides a citation method that is trackable and accepted by all astronomy journals and journals such as Science and Nature. This presentation covers the benefits of registering astronomy research software with the ASCL, upcoming changes that will enable greater software discovery initially for NASA software and potentially for software funded by other organizations, changes to the ASCL and ADS that benefit researchers, and our research into software use in astronomy.

Alice Allen, Astrophysics Source Code Library/University of Maryland
Robert J. Nemiroff, Michigan Technological University
Peter J. Teuben, University of Maryland

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ASCL research poster as AAS 231

Poster for Schroedinger's Code research paper showing results
Astronomers use software for their research, but how many of the codes they use are available as source code? We examined a sample of 166 papers from 2015 for clearly identified software use, then searched for source code for the software packages mentioned in these research papers. We categorized the software to indicate whether source code is available for download and whether there are restrictions to accessing it, and if source code was not available, whether some other form of the software, such as a binary, was. Over 40% of the source code for the software used in our sample was not available for download.

As URLs have often been used as proxy citations for software, we also extracted URLs from one journal’s 2015 research articles, removed those from certain long-term, reliable domains, and tested the remainder to determine what percentage of these URLs were still accessible in September and October, 2017.

P. Wesley Ryan, Astrophysics Source Code Library
Alice Allen, Astrophysics Source Code Library/University of Maryland
Peter Teuben, University of Maryland

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ASCL poster at AAS 231

ASCL poster showing various statistics for ASCL, including increase in citations and growth of resource
The Astrophysics Source Code Library (ASCL, ascl.net) was founded in 1999 by Robert Nemiroff and John Wallin. ASCL editors seek both new and old peer-reviewed papers that describe methods or experiments that involve the development or use of source code, and add entries for the found codes to the library. Software authors can submit their codes to the ASCL as well. This ensures a comprehensive listing covering a significant number of the astrophysics source codes used in peer-reviewed studies. The ASCL is indexed by both NASA’s Astrophysics Data System (ADS) and Web of Science, making software used in research more discoverable. This presentation covers the growth in the ASCL’s number of entries, the number of citations to its entries, and in which journals those citations appear.

Alice Allen, Astrophysics Source Code Library/University of Maryland
G. Bruce Berriman, Caltech/IPAC-NExScI
Kimberly DuPrie, Space Telescope Science Institute/Astrophysics Source Code Library
Jessica Mink, Smithsonian Astrophysical Observatory
Robert Nemiroff, Michigan Technological University
P.W. Ryan, Astrophysics Source Code Library
Judy Schmidt, Astrophysics Source Code Library
Lior Shamir, Lawrence Technological University
Keith Shortridge, Knave and Varlet
Peter Teuben, University of Maryland
John Wallin, Middle Tennessee State University
Rein H. Warmels, European Southern Observatory

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ASCL at AAS 231

It’s AAS meeting time, and that means a busy busy week! There are some of the ASCL’s activities at this meeting; we hope to see you at our posters and in the Special Session!


Poster 150.10: The Astrophysics Source Code Library by the numbers
Tuesday, January 09, Prince Georges Exhibit Hall

Abstract: The Astrophysics Source Code Library (ASCL, ascl.net) was founded in 1999 by Robert Nemiroff and John Wallin. ASCL editors seek both new and old peer-reviewed papers that describe methods or experiments that involve the development or use of source code, and add entries for the found codes to the library. Software authors can submit their codes to the ASCL as well. This ensures a comprehensive listing covering a significant number of the astrophysics source codes used in peer-reviewed studies. The ASCL is indexed by both NASA’s Astrophysics Data System (ADS) and Web of Science, making software used in research more discoverable. This presentation covers the growth in the ASCL’s number of entries, the number of citations to its entries, and in which journals those citations appear. It also discusses what changes have been made to the ASCL recently, and what its plans are for the future.


Poster 150.28: Schroedinger’s code: Source code availability and transparency in astrophysics
Tuesday, January 09, Prince Georges Exhibit Hall

Abstract: Astronomers use software for their research, but how many of the codes they use are available as source code? We examined a sample of 166 papers from 2015 for clearly identified software use, then searched for source code for the software packages mentioned in these research papers. We categorized the software to indicate whether source code is available for download and whether there are restrictions to accessing it, and if source code was not available, whether some other form of the software, such as a binary, was. Over 40% of the source code for the software used in our sample was not available for download.

As URLs have often been used as proxy citations for software, we also extracted URLs from one journal’s 2015 research articles, removed those from certain long-term, reliable domains, and tested the remainder to determine what percentage of these URLs were still accessible in September and October, 2017.


Special Session: Astronomy Software Publishing: Community Roles and Services
Thursday, January 11, 10:00 AM – 11:30 AM; National Harbor 2
Organizers: Astrophysics Source Code Library (ASCL)/Astronomical Data Group at the Flatiron Institute

The importance of software to astronomy research is well-established, and excellent arguments to reveal these computational methods to support the research record have been advanced and much discussed in recent years. But what avenues are open to software authors to publish their codes, and what roles and services exist in the community to support their efforts? This session, organized by the Astrophysics Source Code Library (ASCL) and Astronomical Data Group at the Flatiron Institute, answers that question. It builds on previous AAS special sessions and brings together a panel of experts to present on the various avenues for publishing codes and the pros and cons of these avenues, the roles of authors, data editors, and publication indexers in software publication, the benefits of publication to authors and the discipline, and efforts of related community projects to improve aspects of software publication. After the presentations, the floor will be open for discussion and questions.

The topics and panelists are:

Introductory remarks, Peter Teuben (University of Maryland)
The evolution of software publication in astronomy, Matteo Cantiello (Flatiron Institute, Center for Computational Astrophysics/Princeton University)
Software papers and citation in the AAS journals, Chris Lintott (AAS Journals/University of Oxford)
Software policies and guidelines at Nature, Leslie J. Sage (Physical Sciences, Nature)
SpringerNature data and software policies for astrophysics journals, Ramon Khanna (Astronomy, Springer)
Journal of Open Source Software (JOSS): design and first-year review, Arfon M. Smith (Space Telescope Science Institute)
Lessons learned through the development and publication of AstroImageJ, Karen Collins (Harvard-Smithsonian Center for Astrophysics)
The roles of the AAS Journals’ Data Editors, August Muench (Journals Division, AAS)
The role of the ADS in software discovery and citation, Alberto Accomazzi (Smithsonian Astrophysical Observatory)
The Astrophysics Source Code Library: Supporting software publication and citation, Alice Allen (ASCL/University of Maryland)
Open discussion and Q&A, Moderated by Peter Teuben (University of Maryland)
Summary and closing remarks, Robert J. Nemiroff (Michigan Technological University)

ASCL poster at ADASS XXVII

ASCL poster at ADASS XXII in Santiago, Chile

The Astrophysics Source Code Library (ASCL), established in 1999, is a citable online registry of source codes used in research that are available for download; the ASCL’s main purpose is to improve the transparency, reproducibility, and falsifiability of research. This presentation discusses the 2017 improvements to the resource, including real-time data backup for submissions and newly-published entries, improved cross-matching of research papers with software entries in ADS, and the expansion of preferred citation information for the software in the ASCL.

Alice Allen, Astrophysics Source Code Library/University of Maryland
Bruce Berriman, Caltech/IPAC-NExScI
Kimberly DuPrie, Space Telescope Science Institute/Astrophysics Source Code Library
Jessica Mink, Smithsonian Astrophysical Observatory
Robert Nemiroff, Michigan Technological University
P.W. Ryan, Astrophysics Source Code Library
Judy Schmidt, Astrophysics Source Code Library
Lior Shamir, Lawrence Technological University
Keith Shortridge, Knave and Varlet
Mark Taylor, University of Bristol
Peter Teuben, University of Maryland
John Wallin, Middle Tennessee State University
Rein H. Warmels, European Southern Observatory

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ASCL at the 2017 European Week of Astronomy and Space Science (EWASS) meeting

The European Week of Astronomy and Space Science (EWASS) was held June 26-30 in Prague and attended by over 1,100 people, and the ASCL was there! This post is an overview of the ASCL’s participation in the event; a subsequent post (or two) will provide more detailed information and links to slide decks for sessions the ASCL was involved in organizing.

Program page for software talks

Program page for software talks
Image by Amruta Jaodand

This was my first time attending EWASS, which was initially brought to my attention by Keith Smith (Science). It was also my first time in Prague. My activities since the meeting have included submitting proposals (with others) for EWASS 2018, which will be in Liverpool, and pricing short-term apartment rentals in Prague; clearly, I liked both the meeting and the city very much! My thanks to Keith for cluing me in to this fine meeting.

ASCL Advisory Committee member Rein Warmels (ESO) and I partnered with Abigail Stevens (U Amsterdam), Amruta Jaodand (ASTRON), and Matteo Bachetti (INAF-Osservatorio Astronomico di Cagliari) on software-related sessions for EWASS 2017; our collaboration resulted in a day of talks on Wednesday called Developments and Practices in Astronomy Research Software and a Hack Together Day on Thursday, this latter coordinated by Stevens, Jaodand, and Bachetti.

The ASCL was well represented, with ASCL co-founder Robert Nemiroff (MTU) giving a talk on short codes and Warmels and I each moderating 90-minute sessions on software, both with a discussion period; I also gave a presentation on the ASCL and participated in the Hack Together Day.

The Hack Together Day had numerous exciting projects; the ASCL’s projects were less glamorous than most others but yielded really useful information, some of which has already been added to ASCL entries.

Our collective efforts went very well, despite a few worrisome moments along the way. The room our Special Session presentations were in had 98 seats; perhaps 90% were filled for these sessions, and there were people also standing in the room. The presenters/presentations were great and the discussions were lively, and more information about these sessions will be posted soon.

There was of course much much more to EWASS than our efforts; notable for those software-inclined were the astrometry, big data, and astroinformatics sessions and associated posters for all of these sessions. In all, an excellent conference!

ASCL poster at AAS #229

With 1,400 codes, the Astrophysics Source Code Library (ASCL, ascl.net) is the largest indexed resource for codes used in astronomy research in existence. This free online registry was established in 1999, is indexed by Web of Science and ADS, and is citable, with citations to its entries tracked by ADS. Registering your code with the ASCL is easy with our online submissions system. Making your software available for examination shows confidence in your research and makes your research more transparent, reproducible, and falsifiable. ASCL registration allows your software to be cited on its own merits and provides a citation that is trackable and accepted by all astronomy journals and journals such as Science and Nature. Registration also allows others to find your code more easily. This presentation covers the benefits of registering astronomy research software with the ASCL.

Alice Allen, Astrophysics Source Code Library
Kimberly DuPrie, Space Telescope Science Institute
G. Bruce Berriman, IPAC, Caltech
Jessica D. Mink, Smithsonian Astrophysical Observatory
Robert J. Nemiroff, Michigan Technological University
Thomas Robitaille, Freelance
Judy Schmidt, Astrophysics Source Code Library
Lior Shamir, Lawrence Technological University
Keith Shortridge, Knave and Varlet
Peter J. Teuben, University of Maryland
John F. Wallin, Middle Tennessee State University
Rein Warmels, European Southern Observatory

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Software events at AAS 229, Grapevine

And here it is: the Big List o’ Software Stuff at next month’s AAS meeting. If I missed anything, please let me know in the comments below; thanks!


TUESDAY, 3 JANUARY 2017
Workshops
Introduction to Software Carpentry, 8:00 am ‐ 5:30 pm, Appaloosa 1
Using Python for Astronomical Data Analysis, 8:30 am ‐ 5:00 pm, Texas C


WEDNESDAY, 4 JANUARY 2017
Splinter meeting: Flexible Multi‐dimensional Modeling of Complex Data in Astronomy, 9:30 am ‐ 11:30 am, Grapevine 4

Poster presentations
146.04 Gemini Planet Imager Calibrations, Pipeline Updates, and Campaign Data Process
146.07 Reprocessing of Archival Direct Imaging Data of Herbig Ae/Be Stars
146.13 Finding Planets in K2: A New Method of Cleaning the Data
146.17. Searching for Wide, Planetary-Mass Companions in Archival Spitzer/IRAC Data
154.25 Automated Detection of Dwarf Galaxies and Star Clusters in SMASH through the NOAO Data Lab
154.27 On the Quantification of Incertitude in Astrophysical Simulation Codes
155.13 Spectro-spatial reconstruction of Wide Field Imaging Interferometry Testbed (WIIT) data

Oral presentations
Testing SMBH scaling relations using cosmological simulations and optical/near-IR imaging data, 10:00 am – 10:20 am, Grapevine C
An Empirical Examination of the NEOWISE Results and Data analysis, 10:50 am – 11:00 am, Texas 4
Data Simulation for 21 cm Cosmology Experiments, 2:40 pm – 2:50 pm, Grapevine C


THURSDAY, 5 JANUARY 2017
Poster presentations
Session 236: Computation, Data Handling, Image Analysis & Light Pollution (21 posters)

239.03, The era of synoptic galactic archeology: using HST and Chandra observations to constrain the evolution of elliptical galaxies through the spatial distribution of globular clusters and X-ray binaries
244.05, Three-Dimensional Simulations of the Convective Urca Process in Pre-Supernova White Dwarfs

Oral presentations
Mind the Gap when Data Mining the Ritter-Kolb Cataclysmic Variable Catalogue, 10:00 am – 10:10 am, Fort Worth 6
What drives the kinematic evolution of star-forming galaxies? 10:20 am – 10:30 am, Grapevine 2
Simulating Galactic Winds on Supercomputers, 2:50 pm – 3:10 pm, Grapevine A
Photometric Redshifts for High Resolution Radio Galaxies in the SuperCLASS Field, 3:10 pm – 3:20 PM, Grapevine A


FRIDAY, 6 JANUARY 2017
Special Session: Perspectives in Research Software: Education, Funding, Reproducibility, Citation, and Impact, 10:00 am – 11:30 am, Grapevine 2

Poster presentations
335.05, When Will It Be …?: U.S. Naval Observatory Religious Calendar Computers Expanded
336.09, Variable Stars as an Introduction to Computational Research
345.03, An ALMA Survey of Planet Forming Disks in Rho Ophiuchus
345.19, Chemistry of protostellar envelopes and disks: computational testing of 2D abundances
348.06, Computing Architecture for the ngVLA

Oral presentations
K2 red giant asteroseismology using Bayesian Asteroseismology data Modeling (BAM), 10:24 am – 10:36 am, Grapevine B
Upgrades to MINERVA control software, 2:00 pm – 2:10 pm, Texas D


SATURDAY, 7 JANUARY 2017
Special Session: Statistical, Mathematical and Computational Methods for Astronomy (ASTRO): SAMSI 2016-17, 10:00 am – 11:30 am, Grapevine 2

Workshop: Hack Together Day, 10:00 am ‐ 7:00 pm, Grapevine 4 (Info and registration)

Also of likely interest is the Special Session on The Value of Astronomical Data and Long Term Preservation that will take place on Thursday, 4 January from 10:00 am – 11:30 am in Texas 3.

 

ADASS XXVI poster: Decoupling the Archive

Decoupling the archive posterThe James Webb Space Telescope (JWST) archive will store numerous metadata for the various files that it contains: at the time of this writing a single FITS file can have up to 250 different metadata fields in the archive, most of which map to keywords in the primary header or header extensions. One of the goals of the archive design is to allow for changes to the fields stored in the database without having to change the ingest code. We have found this to be very helpful during the code development phase of the mission when the FITS file definitions are frequently changing. We also anticipate it will be advantageous during the lifetime of the mission as changes to processing will likely result in changes to the keywords but should not require changes to the ingest code. This poster describes the methods we use to decouple the archive from the ingest process.

Kimberly DuPrie, Space Telescope Science Institute
Lisa Gardner, Space Telescope Science Institute
Michael Gough, Space Telescope Science Institute
Richard C. Kidwell Jr., Space Telescope Science Institute

Montage poster at ADASS 2016

We want to share some of the posters that are appearing at ADASS this week (with permission of their authors). Montage is in the ASCL; we love this poster for several reasons, but especially because it makes clear that sustainability of the software is important!
Image of paper on the software Montagle

Abstract: The Montage toolkit is finding exceptional breadth of usage, far beyond its intended application as a mosaic engine for astronomy. New uses include:
– Visualization of complex images with data overlays: e.g. as a re-projection engine integrated into the server-side architecture of a Gbit visualization system supporting investigations of 3D printing with the X3D protocol creation of sky coverage maps for missions and projects bulk creation of sub-images of multiband photometry data creation of plots in the APLPy library.
– Creation of new data products at scale: mosaics of Gemini AO images from the Gemini Multi-Conjugate Adaptive Optics System/Gemini South Adaptive Optics Imager (GEMS/GSAOI) instrument, from the VISTA VIDEO and the UKIDSS DXS surveys welding the Herschel infrared Galactic plane (Hi-GAL) far-infrared Survey into a set of large-scale mosaics, for planetarium shows at a digital as well as for research
– As a re-projection engine to support discovery of 86 Near Earth Asteroids (a U.S. congressional mandate) in the Lincoln Near-Earth Asteroid Research Program (LINEAR).
– Integration into data processing environments: integration of the 4D image cutout tool into the VO-compliant CSIRO ASKAP Science Data Archive (CASDA) as a re-projection engine for the Dark Energy Survey (DES) pipeline.
– Discovery of imaging data at scale: use of memory mapped R-tree indices to support searches for spatially extended data, in use in Spitzer and WISE image searches and in spatial and temporal searches for WISE and KOA.
It has been cited as an exemplar application for development of next generation cyber-infrastructure in 238 papers between 2014 and 2016 to date. What has enabled this broad take-up is that Montage has been built and managed as a scalable toolkit, written in C and portable across all common *nix platforms, with minimal dependencies on third-party software, such that it can be built with a simple “make” command. All the components have proven powerful general-purpose tools in their own right, even those first developed to support mosaic creation, such as discovery of images for input to the engine and for management of mosaics. We describe how Montage is managed to assure that the benefits of the architecture are retained, and how we ensure that new development is driven by the needs of the community.