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{"receipt_id":"agent1-2","seq":2,"branch_id":"agent1","kind":"command","cmd":"mkdir -p skypy/galaxies && ls -la skypy/galaxies/","path":null,"exit_code":0,"stdout_tail":"total 56\ndrwxrwxrwx 1 root root   184 Apr 30 16:36 .\ndrwxrwxrwx 1 root root   168 Apr 30 16:36 ..\n-rw-r--r-- 1 root root   458 Feb 22  2026 __init__.py\n-rw-r--r-- 1 root root  5585 Feb 22  2026 _schechter.py\n-rw-r--r-- 1 root root  2100 Feb 22  2026 luminosity.py\n-rw-r--r-- 1 root root 10410 Feb 22  2026 morphology.py\n-rw-r--r-- 1 root root  9565 Feb 22  2026 redshift.py\n-rw-r--r-- 1 root root  8740 Feb 22  2026 spectrum.py\n-rw-r--r-- 1 root root  2365 Feb 22  2026 stellar_mass.py\ndrwxrwxrwx 1 root root   314 Oct  3 17:07 tests\n","stderr_tail":"","stdout_sha256":"b06bc2f493fe48eadcc8dca026b506f573a191b7abf65fdc4f925444a77f7a7f","log_path":"~/dev/nebius-hackathon/pilot/v2-P/skypyproject__skypy-573/runs/pilot-skypyproject__skypy-573-f0fbe60475/logs/agent1/agent1-2.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T17:07:49.380668Z","duration_s":0.0050880000000000005,"timed_out":false,"image_before":"ef6e43e9-7235-4757-bb84-f4fa6cadd560","image_after":"3ade6a5a-78b8-4bfc-9470-8354d6daa887","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
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{"receipt_id":"agent1-4","seq":4,"branch_id":"agent1","kind":"command","cmd":"/opt/receipts-bff7fc995a71421daa1cf4ae992b683c/bin/busybox mkdir -p /opt/receipts/reports && python -I /opt/receipts-bff7fc995a71421daa1cf4ae992b683c/receipts_pytest.py skypy/galaxies/tests/test_velocity_dispersion.py::test_schechter_vdf --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning -o junit_family=xunit1 -p no:cacheprovider -rA --continue-on-collection-errors --junitxml=/opt/receipts/reports/agent1-4.xml","path":null,"exit_code":0,"stdout_tail":"============================= test session starts ==============================\ncollected 1 item\n\nskypy/galaxies/tests/test_velocity_dispersion.py .                       [100%]\n\n=============================== warnings summary ===============================\nskypy/galaxies/spectrum.py:8\n  /skypy/skypy/galaxies/spectrum.py:8: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.\n    from pkg_resources import resource_filename\n\n-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html\n==================================== PASSES ====================================\n------------ generated xml file: /opt/receipts/reports/agent1-4.xml ------------\n=========================== short test summary info ============================\nPASSED skypy/galaxies/tests/test_velocity_dispersion.py::test_schechter_vdf\n========================= 1 passed, 1 warning in 0.53s =========================\n","stderr_tail":"","stdout_sha256":"6b8553abe80d9089009276f6467117401a30f4adb3f29f73f87365d9a6bf61ec","log_path":"~/dev/nebius-hackathon/pilot/v2-P/skypyproject__skypy-573/runs/pilot-skypyproject__skypy-573-f0fbe60475/logs/agent1/agent1-4.log","tree_digest":"b6f0763fcdf03ffcbe8991e82f70e98e02dc0a89e2b8c12f15bcda7f3010079f","tree_download_s":10.034311749972403,"started_at":"2026-10-03T17:08:01.370174Z","duration_s":3.625174,"timed_out":false,"image_before":"b3249a9b-91c6-4abc-bad7-01e3c08e017c","image_after":"a758a5d6-0ee3-4ce9-a41e-e2e4c5d5f087","junit":{"passed":["skypy/galaxies/tests/test_velocity_dispersion.py::test_schechter_vdf"],"failed":[],"errors":[],"skipped":[],"collection_errors":[],"failure_text":{}},"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
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Refrain from using this package or pin to Setuptools<81.\n    from pkg_resources import resource_filename\n\n-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html\n==================================== PASSES ====================================\n=========================== short test summary info ============================\nPASSED skypy/galaxies/tests/test_import.py::test_import\nPASSED skypy/galaxies/tests/test_luminosity.py::test_schechter_lf_magnitude\nPASSED skypy/galaxies/tests/test_morphology.py::test_angular_size\nPASSED skypy/galaxies/tests/test_morphology.py::test_beta_ellipticity\nPASSED skypy/galaxies/tests/test_morphology.py::test_late_type_lognormal_size\nPASSED skypy/galaxies/tests/test_morphology.py::test_early_type_lognormal_size\nPASSED skypy/galaxies/tests/test_morphology.py::test_linear_lognormal_size\nPASSED skypy/galaxies/tests/test_morphology.py::test_ryden04_ellipticity\nPASSED skypy/galaxies/tests/test_redshift.py::test_schechter_lf_redshift\nPASSED skypy/galaxies/tests/test_redshift.py::test_schechter_smf_redshift\nPASSED skypy/galaxies/tests/test_redshift.py::test_redshifts_from_comoving_density\nPASSED skypy/galaxies/tests/test_redshift.py::test_smail\nPASSED skypy/galaxies/tests/test_schechter.py::test_schechter_lf\nPASSED skypy/galaxies/tests/test_schechter.py::test_schechter_smf\nPASSED skypy/galaxies/tests/test_spectrum.py::test_sampling_coefficients\nPASSED skypy/galaxies/tests/test_spectrum.py::test_kcorrect_magnitudes\nPASSED skypy/galaxies/tests/test_spectrum.py::test_kcorrect_stellar_mass\nPASSED skypy/galaxies/tests/test_spectrum.py::test_kcorrect_stellar_mass_remain\nPASSED skypy/galaxies/tests/test_spectrum.py::test_kcorrect_metallicity\nPASSED skypy/galaxies/tests/test_spectrum.py::test_kcorrect_star_formation_rates\nPASSED skypy/galaxies/tests/test_stellar_mass.py::test_exponential_distribution\nPASSED skypy/galaxies/tests/test_stellar_mass.py::test_stellar_masses\nPASSED skypy/galaxies/tests/test_velocity_dispersion.py::test_schechter_vdf\n23 passed, 1 warning in 2.11s\n","stderr_tail":"","stdout_sha256":"209a75ba54590aed80e41103a247ee29d80753d1526fffe63ff1df585847eb64","log_path":"~/dev/nebius-hackathon/pilot/v2-P/skypyproject__skypy-573/runs/pilot-skypyproject__skypy-573-f0fbe60475/logs/agent1/agent1-5.log","tree_digest":"b6f0763fcdf03ffcbe8991e82f70e98e02dc0a89e2b8c12f15bcda7f3010079f","tree_download_s":7.241156250005588,"started_at":"2026-10-03T17:08:17.991249Z","duration_s":5.109343,"timed_out":false,"image_before":"a758a5d6-0ee3-4ce9-a41e-e2e4c5d5f087","image_after":"11939a2e-2a60-4484-b8fe-7248bb279b88","junit":{"passed":["skypy/galaxies/tests/test_import.py::test_import","skypy/galaxies/tests/test_luminosity.py::test_schechter_lf_magnitude","skypy/galaxies/tests/test_morphology.py::test_angular_size","skypy/galaxies/tests/test_morphology.py::test_beta_ellipticity","skypy/galaxies/tests/test_morphology.py::test_late_type_lognormal_size","skypy/galaxies/tests/test_morphology.py::test_early_type_lognormal_size","skypy/galaxies/tests/test_morphology.py::test_linear_lognormal_size","skypy/galaxies/tests/test_morphology.py::test_ryden04_ellipticity","skypy/galaxies/tests/test_redshift.py::test_schechter_lf_redshift","skypy/galaxies/tests/test_redshift.py::test_schechter_smf_redshift","skypy/galaxies/tests/test_redshift.py::test_redshifts_from_comoving_density","skypy/galaxies/tests/test_redshift.py::test_smail","skypy/galaxies/tests/test_schechter.py::test_schechter_lf","skypy/galaxies/tests/test_schechter.py::test_schechter_smf","skypy/galaxies/tests/test_spectrum.py::test_sampling_coefficients","skypy/galaxies/tests/test_spectrum.py::test_kcorrect_magnitudes","skypy/galaxies/tests/test_spectrum.py::test_kcorrect_stellar_mass","skypy/galaxies/tests/test_spectrum.py::test_kcorrect_stellar_mass_remain","skypy/galaxies/tests/test_spectrum.py::test_kcorrect_metallicity","skypy/galaxies/tests/test_spectrum.py::test_kcorrect_star_formation_rates","skypy/galaxies/tests/test_stellar_mass.py::test_exponential_distribution","skypy/galaxies/tests/test_stellar_mass.py::test_stellar_masses","skypy/galaxies/tests/test_velocity_dispersion.py::test_schechter_vdf"],"failed":[],"errors":[],"skipped":[],"collection_errors":[],"failure_text":{}},"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-6","seq":6,"branch_id":"agent1","kind":"diff","cmd":"compute patch in executor staging agent1-6ed06b8f23d84a3abd731cadc3221d8f: /opt/homebrew/Cellar/git/2.53.0/bin/git -c core.hooksPath=/dev/null -c core.attributesFile=/dev/null -c diff.external= -c core.quotePath=false add -A && /opt/homebrew/Cellar/git/2.53.0/bin/git -c core.hooksPath=/dev/null -c core.attributesFile=/dev/null -c diff.external= -c core.quotePath=false diff --cached --binary --no-ext-diff --no-textconv --no-renames af01b066cc4d5cbc8c1d38df657fa88df573a8c3","path":null,"exit_code":0,"stdout_tail":"diff --git a/skypy/galaxies/velocity_dispersion.py b/skypy/galaxies/velocity_dispersion.py\nnew file mode 100644\nindex 0000000..7f1cd4d\n--- /dev/null\n+++ b/skypy/galaxies/velocity_dispersion.py\n@@ -0,0 +1,49 @@\n+\"\"\"\n+Velocity dispersion function samplers.\n+\"\"\"\n+import numpy as np\n+\n+\n+def schechter_vdf(alpha, beta, vd_star, vd_min, vd_max, size, resolution):\n+    \"\"\"\n+    Draw random samples from the velocity dispersion function described\n+    by a Schechter-like form (Choi et al. 2017).\n+\n+    Parameters\n+    ----------\n+    alpha : float\n+        Power-law slope of the VDF.\n+    beta : float\n+        Exponential cutoff slope of the VDF.\n+    vd_star : float\n+        Characteristic velocity dispersion (km/s).\n+    vd_min : float\n+        Minimum velocity dispersion for sampling (km/s).\n+    vd_max : float\n+        Maximum velocity dispersion for sampling (km/s).\n+    size : int\n+        Number of samples to draw.\n+    resolution : int\n+        Number of grid points used to construct the CDF.\n+\n+    Returns\n+    -------\n+    samples : ndarray, shape (size,)\n+        Random draws from the VDF.\n+    \"\"\"\n+    # Grid in velocity dispersion\n+    vd_grid = np.linspace(vd_min, vd_max, resolution)\n+    # Un-normalised Schechter-like VDF (matching test calc_pdf up to norm)\n+    # Following equation 1 in Choi et al. (2017) ApJ 837 102 (converted to sigma_v)\n+    pdf = (vd_grid / vd_star) ** alpha * np.exp(-(vd_grid / vd_star) ** beta)\n+    pdf /= vd_grid  # extra 1/sigma_v factor as in test calc_pdf\n+\n+    # Normalise to obtain probability distribution\n+    cdf = np.cumsum(pdf)\n+    cdf /= cdf[-1]  # normalise to 1\n+\n+    # Inverse transform sampling\n+    u = np.random.uniform(0, 1, size)\n+    samples = np.interp(u, cdf, vd_grid)\n+\n+    return samples\n\\ No newline at end of file\n","stderr_tail":"","stdout_sha256":"6da9c7445771c4fc56a5529af32f42cf3538c8f156bf10262205987d7647ad5f","log_path":null,"tree_digest":"b6f0763fcdf03ffcbe8991e82f70e98e02dc0a89e2b8c12f15bcda7f3010079f","tree_download_s":2.174192334059626,"started_at":"2026-10-03T17:08:43.447772Z","duration_s":0.04518187511712313,"timed_out":false,"image_before":"11939a2e-2a60-4484-b8fe-7248bb279b88","image_after":"11939a2e-2a60-4484-b8fe-7248bb279b88","junit":null,"diff":{"files":[{"path":"skypy/galaxies/velocity_dispersion.py","added":49,"deleted":0,"category":"source","status":"added"}],"patch_sha256":"6da9c7445771c4fc56a5529af32f42cf3538c8f156bf10262205987d7647ad5f","patch_path":"~/dev/nebius-hackathon/pilot/v2-P/skypyproject__skypy-573/runs/pilot-skypyproject__skypy-573-f0fbe60475/artifacts/agent1/agent1-6.patch"},"patch_sha256":"6da9c7445771c4fc56a5529af32f42cf3538c8f156bf10262205987d7647ad5f","dropped_paths":[],"snapshot_sha":"af01b066cc4d5cbc8c1d38df657fa88df573a8c3"}