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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[2.2.7] - 2024-05-31

Fixed

  • Now dynesty inputs can be given to juliet for both, the general properties (e.g., bound) and the sampler properties (e.g., nlive).

[2.2.6] - 2024-05-30

Fixed

  • New dynesty version not using all cores with how multiprocessing is incorporated in juliet. Now it works, but one has to add the pesky if __name__ == '__main__': to the start of scripts using this.
  • Fixed Gamma parameter on the Exp-sine-squared kernel, for which juliet was actually fitting log(Gamma) and not Gamma, as pointed out in #118.
  • Fixed bug on binning with given errorbars pointed out in #117.
  • Fixed bug that didn't let dynesty args to be passed with newest dynesty version (as noted in #109).

Added

  • Exception if user tries to fit a_p1 and rho (covering issue #116).

[2.2.5] - 2024-03-01

Fixed

  • Bug of multi-instrument fits not updating posteriors by @Jayshil (PR #112).
  • Bug of multi-planet TTV fits (issues #110 and #97) by @melissa-hobson (PR #111).
  • Bug on joint transit and eclipse models; now remove fp component to out-of-eclipse component --- joint transit and eclipse models have thus, by default, and out-of-eclipse and out-of-transit value equal to 1.
  • Bug on setup file that didn't install h5py by default (needed for radvel) (PR #113).

Added

  • Now get_all_TESS_lightcurves has an extra flag to save lightcurves (save_data = True; PR #106 by @melissa-hobson).
  • Tests for transit, eclipse and joint transit and eclipse fits in tests.
  • Implemented phase-curve toy model (simple sinusoid with phase-offset; amplitude set by secondary depth).
  • Added phase-curve test suite under tests.
  • Support for light-travel time delay in eclipse and transit+eclipse fits (PR #113 by Taylor Bell). Activate by dataset.fit(..., light_travel_delay = True, stellar_radius = your_value). Note this applies the correction in this PR only on the eclipses via comparing radial distances from the eclipses to the time-of-transit center, which generates time delays which are subtracted iteratively to the measured time-stamps. This means the transits (or, really, the time-of-transit t0) are used as the references for the correction. In general practice this has little impact, except for (a) distortions that might be injected in phase-curves and (b) for comparisons with codes that apply this to the entire orbit (e.g., starry). On this latter ones, the reference to measure times of the orbit is typically at the center of mass of the system (or the star); in juliet, the reference for the time-stamps is the mid-transit point. As a practical example: for Earth, starry would measure a transit 8 mins earlier and an eclipse 8 minutes late. With juliet, you would measure the transit at t0, and the eclipse 16 minutes late to the no-delay case. The impact on the orbital parameters is the same in both cases.

[2.2.4] - 2023-11-14

Fixed

  • Homogeneized instrument namings on code, which fixed a photometry-only fit bug (fixes #104).
  • Removed the posteriors.dat file printing out only omega values larger than 0 (fixes #90).

[2.2.3] - 2023-10-30

Added

  • Support to instrument-dependant fp, p, p1 and p2 thanks to @Jayshil (#85).
  • Matern+SHO kernel thanks to @Jayshil (#85).
  • Support to instrument-dependant mflux, sigma_w, and linear models (e.g., theta0_inst1_inst2).
  • Added method to utils.bin_data.
  • Upgraded list of contributors.

Fixed

  • Made changes in #85 back-compatible with non-instrument dependant fp, p, p1 and p2.
  • Issue with new version of dynesty thanks to @andres-jordan (#98).
  • Fixed bug when evaluating catwoman models thanks to @Jayshil (#96).
  • Fixed deprecated is comparisons with == on samplers thanks to @rosteen (#86).
  • Fixed issue #81 thanks to @ssagear (#82).

[2.2.1] - 2022-08-17

Fixed

  • Changed ac for t_secondary as the fitting parameter for time of eclipses.

[2.2.0] - 2022-08-02

Added

  • Upgraded list of contributors.
  • tests folder where code tests will be saved.
  • zeus sampler thanks to contribution from Rachel Cooper.
  • Secondary eclipse fitting thanks to contribution from Jayshil Patel.
  • Additional GP kernels thanks to contribution from Jonas Kemmer.
  • Added lowercase priors (thanks to @rosteen; #80).
  • Option to activate/deactivate HODLR solver when using george GP kernels.

Fixed

  • Bug when multiple planets using and not efficient_bp thanks to @tronsgaard.
  • Keywords that made juliet incompatible with dynesty 1.2.2 (this makes juliet incompatible with pervious dynesty versions)
  • exponential prior which was not working.
  • Problem with dynesty, whose newest version crashed with juliet.

Removed

  • Removed the juliet.py (and associated utils.py, FLAGS.md) which hosted the original version of the code, to not confuse contributors.

Fixed

  • Supersampling bug when evaluating models.

[2.1.2] - 2021-03-20

Removed

  • Files for pink noise in deference of building a new package.

Fixed

  • Error on importing __init__.py after new versioning file.
  • All np.int calls have been changed for int calls.

[2.1.1] - 2021-03-19

Added

  • Support for multithreading with emcee.
  • Added stepsampler_ultranest to use Ultranest's stepsampler (see https://johannesbuchner.github.io/UltraNest/example-sine-highd.html).
  • setup.py automatically installs ultranest and emcee now, as both are supported by juliet.
  • Added canonical _version.py file to store versions of the code, following user Zooko in stackoverflow question 458550. Modified __init__.py and setup.py accordingly.
  • Added test_juliet.py script to give juliet a test run with all the samplers.

Fixed

  • juliet.fit docstring parsing.
  • Bug when both input_folder and out_folder are given, introduced by the addition of support to emcee.

[2.1.0] - 2021-02-23

Added

  • PR #47, which adds function to juliet.utils to read AstroImageJ tables.
  • PR #22, which started a unit test script (test_utils.py); also added a .gitignore.
  • Created CHANGELOG.md (this file).
  • Deprecated the use of several flags (e.g., use_dynesty, use_ultranest, dynamic, etc.); now samplers can be selected using the sampler string via juliet.fit. Options for each sampler can be directly ingested to juliet.fit via **kwargs.
  • Outputs from multinest are kept in the output folder now (were removed in previous juliet versions).
  • Support for emcee.

Fixed

  • Fixed bug that was making juliet runs with dynesty always go to Dynamic Nested Sampling by default.
  • Bug that made the juliet.utils.get_all_TESS_data() call to download all files. Now by default only lightcurves are downloaded.
  • Refactored the juliet.fit class of the code; much easier to read, much easier to pass arguments around, much easier to implement new samplers.
  • Removed the delta_z_lim flag which didn't do anything; the delta_z limit can be inputted through the kwargs via juliet.fit.