chirp_mass_from_track — ONED matched op

• Data kinds: pairs → table

• Call: import fullseye as fs; fs.ledger.chirp_mass_from_track(track) -> 'dict' (to call the implementation directly, import gwsearch; gwsearch.chirp_mass_from_track(track) -> 'dict'; from the registry, ops1d.get("chirp_mass_from_track"))

Usage

Chirp mass and coalescence time from a gravitational-wave frequency track (t, f) by least squares.

> The detailed description below is the original text — the summary and the headings are translated.

Parameters

track : array_like

(N, 2) の pairs: 列 0 = 時刻 [s]、列 1 = 重力波周波数 [Hz] (正)。N ≥ 3。

Returns

dict

chirp_mass_msun、coalescence_time_s(t_c = a/b)、slope(b)、

residual_rms(f^{−8/3} の当てはめ残差)、n_points、rising(周波数が

時間とともに上がる軌跡か)。上がらない軌跡はインスパイラルではないので

rising = False とし、chirp_mass_msun と coalescence_time_s は None

(例外にはしない —— 「鳴いていない」は正しい答え)。

Notes

f^{−8/3} = a − b·t、b = (8/3)(96/5)π^{8/3}(GM_c/c³)^{5/3}。PRL 116, 061102 の式 (1) の積分形。

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• poc_gw_detector_pseudo_simulation — py -3.11 examples/poc_gw_detector_pseudo_simulation.py

Ops the type connects to (they accept table as input)

—

Same category (matched)

psd_welch · whiten_by_psd · chirp_newtonian · matched_filter_snr · optimal_snr · coincidence_delay


*Provenance: gwsearch.py — ONED operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.