数据截至Data as of
2026-10-19T06:10Z
S2Fitting：把 XMM-Newton RGS 的“空间”变成“光谱”S2Fitting: turning XMM-Newton RGS space into spectrum
这是一个可重复的 XMM-Newton RGS 空间到光谱前向拟合管线。SAS（Science Analysis System）负责仪器校准、事件、抽谱区域、光谱与响应矩阵；Python 负责配置、编排、验证、Sherpa 模型与结果发布。当前科学目标（PI 于 2026-10-19 设定，决策 D29）是：对超新星遗迹 N132D 的 O VII 与 O VIII 窄带建模，得到发射气体的空间分布与速度分布。本页是工作台：这个项目是什么、现在走到哪里、什么还没解决、下一步做什么。A reproducible XMM-Newton RGS spatial-to-spectral forward-fitting pipeline. SAS owns instrument calibration, events, extraction regions, spectra and response matrices; Python owns configuration, orchestration, validation, Sherpa model composition and result publication. The current science goal (set by the PI on 2026-10-19, decision D29) is to model the O VII and O VIII narrow bands of the supernova remnant N132D and obtain the spatial and velocity distributions of the emitting gas. This page is the workbench: what this is, where it stands, what is unsolved, and what comes next.
本次更新What's new
2026-10-19 首次构建2026-10-19, first build
在跑In flight
6 项与 handbook6 jobs and the handbook
本页目录On this page
管线骨架Pipeline skeleton
来源：docs/architecture.md（数据流与所有权边界）、cognition-os/experiments/E018_real-data-readiness.md（前向模型与讨厌参数组）。Source: docs/architecture.md (data flow and ownership boundaries), cognition-os/experiments/E018_real-data-readiness.md (forward model and nuisance set).
目标表Objectives
| 目标Objective | 状态Status | 当前最佳数值Best number now | 来源Source | 趋势Trend |
|---|---|---|---|---|
| O VII 窄带速度场（\(v_0\)、梯度、\(\sigma_v\)）O VII band velocity field (\(v_0\), gradient, \(\sigma_v\)) | Provisional | \(v_0 = 12 \pm 21\) km/s \(\sigma_v = 500 \pm 27\) km/s \(|g| = 68 \pm 31\) km/s/′\(v_0 = 12 \pm 21\) km/s \(\sigma_v = 500 \pm 27\) km/s \(|g| = 68 \pm 31\) km/s/arcmin |
I02903_TRUST_TABLE.md:134 |
\(\sigma_v\) 稳健，梯度不稳健\(\sigma_v\) robust, gradient not robust |
| \(\sigma_v\) 是内部弥散还是整体分裂？Is \(\sigma_v\) internal dispersion or a bulk split? | Provisional | \(\Delta C = -101\)（4 参数） \(\sigma_c = 438 \pm 28\) km/s \(v_s = -99 \pm 43\) km/s\(\Delta C = -101\) (4 parameters) \(\sigma_c = 438 \pm 28\) km/s \(v_s = -99 \pm 43\) km/s |
I02903_TRUST_TABLE.md:135（RT21 修订）(RT21 amendment) |
分裂改善拟合the split improves the fit |
| 窄带内全部谱线与连续谱Every line and the continuum in each band | 未解open | 目前只放了 O VII r/i/f 与连续谱so far only O VII r/i/f and continuum | 02_CURRENT_QUESTION.md:20 |
待定（E021 谱线清单）Pending (E021 line inventory) |
| O VIII 窄带O VIII band | 待定Pending | 尚未开始not started | 02_CURRENT_QUESTION.md:21 |
待定（E020 输入包）Pending (E020 input pack) |
| 可用数据Usable data | 未解open | 3 个 RGS1 观测在用3 RGS1 observations in use | 02_CURRENT_QUESTION.md:22 |
待定（E021 档案普查）Pending (E021 census) |
| 仪器系统误差Instrument systematics | 基本关闭largely closed | \(\le 0.1\) SD（典型） \(w \approx -3\,\%\) 未解释\(\le 0.1\) SD (typical) \(w \approx -3\,\%\) unexplained |
I028、I02502_CURRENT_QUESTION.md:23 |
讨厌参数组有效the nuisance set works |
来源：cognition-os/02_CURRENT_QUESTION.md（子问题表）、cognition-os/03_TRUST_TABLE.md（每条结论的当前信任标签）、cognition-os/04_DECISION_LOG.md（D29，PI 短期目标）。SD 指 Fisher 标准误（standard deviation）。Source: cognition-os/02_CURRENT_QUESTION.md (sub-question table), cognition-os/03_TRUST_TABLE.md (the current trust label of each claim), cognition-os/04_DECISION_LOG.md (D29, the PI's short-term goal). SD means Fisher standard deviation.
未解问题Open problems
| 问题Problem | 为何重要Why it matters | 最佳假设Best hypothesis | 下一个检验Next test | 状态Status |
|---|---|---|---|---|
| 亮条带谱线顶部平坦或双峰，单高斯速度分布拟合不好（\(p < 0.004\)）Bright-strip line tops are flat or double-peaked; one Gaussian velocity distribution fits poorly (\(p < 0.004\)) | 这是 \(\sigma_v \approx 500\) km/s 的读法能否成立的前提，也决定梯度方向It is the precondition for reading \(\sigma_v \approx 500\) km/s as gas motion, and it decides the gradient direction | 接近与远离的两个壳层成分，分界自由Two shell components, approaching and receding, with a free split boundary | E018c 第 3 步E018c step 3 | 在跑running |
| 交叉色散尺度 \(w \approx -3\,\%\) 无法用任何已测响应误差解释The cross-dispersion scale \(w\) of about \(-3\,\%\) is explained by no measured response error | \(w\) 与模板宽度简并，直接影响 \(\sigma_v\) 的物理读法\(w\) is degenerate with the template width, which directly affects the physical reading of \(\sigma_v\) | 条带边 \(0.5′\) 内的接受度误差，或模板底座A near-edge acceptance error within \(0.5′\) of the strip edge, or a template pedestal | RT22 / E019d 第 2 阶段（stage 2）RT22 / E019d stage 2 | 在跑running |
| 一个 Chandra 模板能否服务窄带内全部成分Can one Chandra template serve every component of the band | 连续谱、f/i 线与 O VIII 污染可能各有形态Continuum, f/i lines and O VIII contamination may follow different morphologies | 偏差 \(< 0.3\) SD（I023 的 Provisional 推论）Bias below \(0.3\) SD (the Provisional implication of I023) | RT22RT22 | 在跑running |
| \(\delta X_o\) 是仪器偏移还是天区配准误差Are the per-observation offsets \(\delta X_o\) an instrument offset or a sky registration error | 配准误差会带色散分量，从而偏置梯度A registration error would carry a dispersion component and bias the gradient | 主要是仪器项（I021，范围已收窄）Mainly the instrument term (I021, scope narrowed) | RT23RT23 | 在跑running |
| O VIII 与 Fe XVII 谱线需要各自波段的模板O VIII and Fe XVII lines need templates of their own bands | D29 要求整条窄带一起建模D29 requires the whole narrow band modelled together | O VII 用 0.50–0.62 keV，O VIII 用 0.62–0.70 keVO VII from 0.50-0.62 keV, O VIII from 0.62-0.70 keV | E020 输入包 + E018c 第 3 阶段E020 input pack + E018c stage 3 | 待定Pending |
来源：cognition-os/02_CURRENT_QUESTION.md（第 16–23 行）、cognition-os/08_RUNNING.md（在飞的 E018c/E020/E021/RT22/RT23）、cognition-os/REDTEAM_QUEUE.md（RT22、RT23 行）、cognition-os/insights/I029_n132d-ovii-velocity-stage1.md（模型不足与下一步）。Source: cognition-os/02_CURRENT_QUESTION.md (lines 16-23), cognition-os/08_RUNNING.md (the in-flight E018c/E020/E021/RT22/RT23), cognition-os/REDTEAM_QUEUE.md (the RT22 and RT23 rows), cognition-os/insights/I029_n132d-ovii-velocity-stage1.md (model inadequacy and next steps).
接下来 1–4 周Next 1-4 weeks
- 核查 E018c（O VII 第二阶段：细网格响应加分界自由的双成分速度分布，Opus 与 codexnim 双臂）。验收：细模型在节点上与第 1 阶段一致到 \(10^{-10}\)；Asimov 恢复 \(|\Delta v_0| < 1\) km/s、\(|\Delta g| < 1\) km/s/′、\(|\Delta \sigma_v| < 1\) km/s。Triage E018c (O VII stage 2: fine-grid responses plus a two-component velocity distribution with a free split boundary, Opus and codexnim arms). Acceptance: the fine model equals the stage-1 model at the nodes to \(10^{-10}\); Asimov recovery \(|\Delta v_0| < 1\) km/s, \(|\Delta g| < 1\) km/s per arcmin, \(|\Delta \sigma_v| < 1\) km/s.
- 核查 E020（O VIII 窄带输入包）与 E021（RGS 档案普查与两个窄带的谱线清单），然后冻结 O VIII 拟合用的模型族。Triage E020 (the O VIII narrow-band input pack) and E021 (the RGS archive census and the line inventory of both bands), then freeze the model family for the O VIII fits.
- O VII 第 3 阶段：用 E021 的全谱线清单扩展窄带模型，检验新增谱线是否改变 \(\sigma_v\) 与分裂。O VII stage 3: extend the narrow-band model with the full line list from E021 and test whether the extra lines change \(\sigma_v\) and the split.
- O VIII 拟合（与 E018c 同一模型族），给出 O VIII 速度场与 O VII/O VIII 对比。O VIII fits (the same model family as E018c), giving the O VIII velocity field and an O VII/O VIII comparison.
- 按 E021 普查结果下载并约简更多 RGS 观测（SAS 20 或 22；硬件允许时默认获准，D29）。Download and reduce further RGS observations from the E021 census (SAS 20 or 22; allowed by default when hardware permits, D29).
来源：cognition-os/08_RUNNING.md 第 3、7 节（在飞任务、验收标准与建议方向）与 cognition-os/04_DECISION_LOG.md D29。第 5 条是 CoPI 的建议方向，尚未派发。Source: cognition-os/08_RUNNING.md sections 3 and 7 (in-flight tasks, acceptance criteria and proposed directions) and cognition-os/04_DECISION_LOG.md D29. Item 5 is a CoPI proposal, not yet dispatched.
本次更新（2026-10-19）What's new (2026-10-19)
handbook 首次构建。所有数字取自 2026-10-19T06:10Z 的 cognition-os 记录；在飞的 E018c、E020、E021、RT22、RT23 尚无结果，本页一律写“待定”。First handbook build. Every number is taken from the cognition-os records of 2026-10-19T06:10Z; the in-flight E018c, E020, E021, RT22 and RT23 have no results yet, so this page marks them Pending.