orbitize!: A Comprehensive Orbit-fitting Software Package for the High-contrast Imaging Community
Abstract
orbitize! is an open-source, object-oriented software package for fitting the orbits of directly imaged objects. It packages the Orbits for the Impatient (OFTI) algorithm and a parallel-tempered Markov Chain Monte Carlo (MCMC) algorithm into a consistent and intuitive Python API. orbitize! makes it easy to run standard astrometric orbit fits; in less than 10 lines of code, users can read in data, perform one fit using OFTI and another using MCMC, and make two publication-ready figures. Extensive pedagogical tutorials, intended to be navigable by both orbit-fitting novices and seasoned experts, are available on our documentation page. We have designed the orbitize! API to be flexible and easy to use/modify for unique cases. orbitize! was designed by members of the exoplanet imaging community to be a central repository for algorithms, techniques, and know-how developed by this community. We intend for it to continue to expand and change as the field progresses and new techniques are developed, and call for community involvement in this process. Complete and up-to-date documentation is available at orbitize.info, and the source code is available at github.com/sblunt/orbitize.
Additional Information
© 2020 The American Astronomical Society. Received 2019 October 1; revised 2019 November 17; accepted 2019 November 18; published 2020 February 5. The authors thank those at academic and telescope facilities whose labor maintains spaces for scientific inquiry, particularly those whose communities are excluded from the academic system. This package was born and developed at the winter 2018 and 2019 AAS Hack Days, and the authors wish to thank the organizers of these events. S.B. would like to thank Logan Cody for superb video editing. The authors would also like to thank Dillon Dong, Jasmine Garani, Melisa Tallis, and Daniel Yahalomi for their time and initial work on orbitize!, and Junellie Gonzalez, Kelly Kosmo O'Neil, Ryan Rubenzahl, and Jean-Baptiste Ruffio for participating in our hackathons and for their anticipated future contributions to orbitize! S.B. would like to thank Andrew Howard, B.J. Fulton, and Erik Petigura for helpful conversations. Finally, we thank the anonymous individual who unknowingly named orbitize! at the 2018 AAS Hack Day.Attached Files
Published - Blunt_2020_AJ_159_89.pdf
Submitted - 1910.01756.pdf
Files
| Name | Size | Download all |
|---|---|---|
|
md5:bd5cedf99f7341206be67e4193a5d958
|
3.3 MB | Preview Download |
|
md5:c0d7c93e64c4a092d1ecfc070c22f38b
|
1.1 MB | Preview Download |
Additional details
- Eprint ID
- 99958
- Resolver ID
- CaltechAUTHORS:20191120-112746352
- NSF Graduate Research Fellowship
- Heising-Simons Foundation
- 51 Pegasi b Fellowship
- Created
-
2019-11-20Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field