Table B.1.
Log of our SPIRou observations of IRAS 04125+2902 in semesters 2024B and 2025A.
| BJD | UT date | c / ϕ | o / ψ | texp | SNR | σV | Bℓ | dT | RV (ato) | RV (CO) | RV (LBL) | Pa-β EW |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (2460000+) | (rotation) | (orbit) | (s) | (H) | (10−4Ic) | (G) | (K) | (km s−1) | (km s−1) | (km s−1) | (km s−1) | |
| 608.0143940 | 2024 Oct 24 | 0 / 0.001 | 202 / 0.172 | 2128.5 | 147 | 4.3 | 24.4±8.8 | 10.0±1.4 | 16.69±0.05 | 17.13±0.05 | 16.994±0.007 | -4.3±0.2 |
| 609.0920572 | 2024 Oct 25 | 0 / 0.096 | 202 / 0.294 | 2407.1 | 119 | 6.1 | 61.4±12.6 | 14.8±1.7 | 16.70±0.06 | 17.06±0.08 | 17.105±0.008 | -5.6±0.2 |
| 622.0988784 | 2024 Nov 07 | 1 / 0.242 | 203 / 0.767 | 2407.1 | 124 | 5.3 | 51.4±11.4 | -41.3±1.6 | 16.86±0.05 | 17.09±0.07 | 17.239±0.007 | -5.5±0.2 |
| 623.8468610 | 2024 Nov 09 | 1 / 0.396 | 203 / 0.964 | 2351.4 | 144 | 4.5 | 20.8±10.1 | -49.2±1.3 | 16.45±0.05 | 16.93±0.06 | 17.019±0.006 | -6.5±0.2 |
| 624.9390119 | 2024 Nov 10 | 1 / 0.492 | 204 / 0.088 | 2039.3 | 147 | 4.3 | 44.0±8.9 | -22.5±1.3 | 16.41±0.05 | 16.95±0.05 | 16.960±0.006 | -6.0±0.2 |
| 625.8439799 | 2024 Nov 11 | 1 / 0.572 | 204 / 0.191 | 2044.9 | 147 | 4.2 | 16.2±9.4 | -4.5±1.3 | 16.30±0.06 | 16.86±0.06 | 16.970±0.006 | -6.7±0.2 |
| 626.8787366 | 2024 Nov 12 | 1 / 0.663 | 204 / 0.308 | 2078.3 | 146 | 4.2 | 0.3±9.1 | 18.2±1.3 | 16.44±0.05 | 16.91±0.06 | 16.935±0.006 | -6.8±0.2 |
| 628.1004148 | 2024 Nov 13 | 1 / 0.771 | 204 / 0.446 | 2395.9 | 145 | 4.6 | 10.8±9.3 | 23.3±1.3 | 16.71±0.05 | 17.03±0.06 | 16.973±0.006 | -5.5±0.2 |
| 631.9550217 | 2024 Nov 17 | 2 / 0.111 | 204 / 0.882 | 2407.1 | 92 | 7.9 | 66.2±17.7 | -1.5±2.0 | 16.79±0.07 | 17.06±0.08 | 16.986±0.009 | -6.2±0.2 |
| 636.9760053 | 2024 Nov 22 | 2 / 0.553 | 205 / 0.451 | 2407.1 | 132 | 5.1 | 23.8±10.5 | -5.4±1.4 | 16.55±0.05 | 16.88±0.06 | 16.884±0.006 | -6.6±0.2 |
| 638.0567321 | 2024 Nov 23 | 2 / 0.648 | 205 / 0.573 | 2407.1 | 121 | 6.3 | 19.2±13.2 | 14.3±1.6 | 16.59±0.05 | 16.99±0.07 | 16.905±0.007 | -6.8±0.2 |
| 638.9277689 | 2024 Nov 24 | 2 / 0.725 | 205 / 0.671 | 2301.2 | 144 | 4.5 | 37.9±9.2 | 18.9±1.3 | 16.73±0.05 | 16.94±0.05 | 16.929±0.006 | -6.3±0.2 |
| 640.8493921 | 2024 Nov 26 | 2 / 0.894 | 205 / 0.889 | 2368.1 | 139 | 5.0 | 16.9±10.6 | 14.5±1.4 | 16.81±0.05 | 17.05±0.05 | 16.987±0.006 | -5.9±0.2 |
| 648.9055747 | 2024 Dec 04 | 3 / 0.604 | 206 / 0.801 | 2100.6 | 137 | 4.6 | 29.2±9.4 | 5.9±1.3 | 16.61±0.05 | 16.94±0.06 | 16.902±0.006 | -6.0±0.2 |
| 650.8658794 | 2024 Dec 06 | 3 / 0.777 | 207 / 0.023 | 2407.1 | 116 | 5.8 | 55.5±12.2 | 23.5±1.6 | 16.63±0.06 | 17.01±0.07 | 16.961±0.007 | -6.0±0.2 |
| 652.0129438 | 2024 Dec 07 | 3 / 0.878 | 207 / 0.152 | 2407.1 | 135 | 4.8 | 27.1±10.2 | 15.8±1.3 | 16.78±0.05 | 17.06±0.05 | 16.979±0.006 | -6.3±0.2 |
| 652.8490028 | 2024 Dec 08 | 3 / 0.951 | 207 / 0.247 | 2234.3 | 146 | 4.4 | -4.1±8.9 | 11.0±1.3 | 16.78±0.05 | 17.06±0.05 | 16.979±0.006 | -5.5±0.2 |
| 653.8467623 | 2024 Dec 09 | 4 / 0.039 | 207 / 0.360 | 2245.5 | 130 | 4.9 | -0.8±10.6 | 3.7±1.4 | 16.83±0.06 | 17.05±0.06 | 16.985±0.007 | -6.2±0.2 |
| 654.9702164 | 2024 Dec 10 | 4 / 0.138 | 207 / 0.487 | 2407.1 | 124 | 5.4 | 58.7±11.3 | -20.1±1.5 | 16.94±0.05 | 17.12±0.07 | 17.057±0.007 | -5.7±0.2 |
| 656.9989921 | 2024 Dec 12 | 4 / 0.317 | 207 / 0.717 | 2407.1 | 125 | 5.2 | 16.7±11.5 | -62.6±1.6 | 16.66±0.06 | 17.05±0.06 | 16.991±0.007 | -6.8±0.2 |
| 657.8461617 | 2024 Dec 13 | 4 / 0.392 | 207 / 0.813 | 2245.5 | 138 | 4.6 | 38.1±9.9 | -47.5±1.3 | 16.44±0.05 | 16.89±0.04 | 16.904±0.006 | -6.9±0.2 |
| 659.8565597 | 2024 Dec 15 | 4 / 0.569 | 208 / 0.040 | 2295.6 | 130 | 5.2 | 50.0±11.0 | -4.5±1.4 | 16.57±0.05 | 16.93±0.07 | 16.924±0.006 | -6.2±0.2 |
| 660.9820562 | 2024 Dec 16 | 4 / 0.668 | 208 / 0.168 | 2373.6 | 128 | 5.2 | 29.6±10.7 | 10.8±1.4 | 16.61±0.05 | 16.94±0.05 | 16.947±0.007 | -6.9±0.2 |
| 661.8967913 | 2024 Dec 17 | 4 / 0.749 | 208 / 0.271 | 2407.1 | 89 | 8.2 | 59.4±18.1 | 24.1±2.1 | 16.71±0.11 | 16.94±0.08 | 16.993±0.009 | -7.0±0.2 |
| 662.9070342 | 2024 Dec 18 | 4 / 0.838 | 208 / 0.386 | 2401.5 | 141 | 4.6 | 39.8±9.3 | 28.9±1.3 | 16.73±0.05 | 16.97±0.06 | 16.987±0.006 | -5.5±0.2 |
| 664.8320040 | 2024 Dec 20 | 5 / 0.007 | 208 / 0.603 | 2395.9 | 139 | 4.7 | 0.2±9.7 | 9.5±1.3 | 16.82±0.05 | 17.02±0.04 | 17.021±0.006 | -6.3±0.2 |
| 665.8295021 | 2024 Dec 21 | 5 / 0.095 | 208 / 0.716 | 1978.0 | 134 | 4.7 | 26.4±9.7 | -8.6±1.4 | 16.90±0.05 | 17.13±0.05 | 17.072±0.006 | -6.3±0.2 |
| 666.7968469 | 2024 Dec 22 | 5 / 0.180 | 208 / 0.826 | 2111.8 | 141 | 4.4 | 58.7±9.2 | -29.8±1.3 | 17.00±0.05 | 17.12±0.04 | 17.064±0.006 | -6.2±0.2 |
| 667.9460719 | 2024 Dec 23 | 5 / 0.282 | 208 / 0.956 | 2384.8 | 138 | 4.6 | 30.9±9.8 | -55.9±1.4 | 16.82±0.06 | 17.03±0.06 | 17.034±0.006 | -5.9±0.2 |
| 712.7557814 | 2025 Feb 06 | 9 / 0.230 | 214 / 0.028 | 2407.1 | 144 | 4.4 | 33.8±9.2 | -42.7±1.4 | 16.91±0.06 | 17.08±0.06 | 17.043±0.006 | -6.0±0.2 |
| 713.7517826 | 2025 Feb 07 | 9 / 0.317 | 214 / 0.140 | 2407.1 | 140 | 4.5 | 30.9±10.1 | -54.5±1.4 | 16.51±0.07 | 17.01±0.05 | 17.018±0.006 | -5.7±0.2 |
| 714.7552796 | 2025 Feb 08 | 9 / 0.406 | 214 / 0.254 | 2407.1 | 147 | 4.3 | 46.0±9.2 | -36.6±1.4 | 16.42±0.06 | 16.94±0.05 | 16.912±0.006 | -5.3±0.2 |
| 716.7313956 | 2025 Feb 10 | 9 / 0.580 | 214 / 0.478 | 2407.1 | 150 | 4.2 | 55.1±8.8 | -3.4±1.4 | 16.58±0.05 | 17.05±0.04 | 17.005±0.006 | -6.1±0.2 |
| 717.7468824 | 2025 Feb 11 | 9 / 0.669 | 214 / 0.593 | 2407.1 | 143 | 4.4 | 82.3±9.7 | 5.4±1.4 | 16.52±0.08 | 17.01±0.06 | 16.940±0.006 | -6.9±0.2 |
| 718.7253109 | 2025 Feb 12 | 9 / 0.756 | 214 / 0.703 | 2407.1 | 147 | 4.2 | 100.9±8.8 | 18.8±1.4 | 16.54±0.05 | 16.99±0.05 | 16.946±0.006 | -6.7±0.2 |
| 719.7597841 | 2025 Feb 13 | 9 / 0.847 | 214 / 0.821 | 2407.1 | 140 | 4.5 | 62.9±9.9 | 23.4±1.4 | 16.61±0.08 | 17.02±0.05 | 16.971±0.006 | -6.1±0.2 |
| 720.7188669 | 2025 Feb 14 | 9 / 0.931 | 214 / 0.929 | 2407.1 | 99 | 6.5 | -17.6±15.2 | 15.7±2.4 | 16.87±0.08 | 17.07±0.08 | 17.034±0.010 | -5.8±0.2 |
| 721.8351858 | 2025 Feb 15 | 10 / 0.030 | 215 / 0.055 | 2407.1 | 128 | 5.0 | -47.0±10.2 | -2.4±1.5 | 16.89±0.05 | 17.12±0.06 | 17.038±0.007 | -5.5±0.2 |
| 724.7468078 | 2025 Feb 18 | 10 / 0.286 | 215 / 0.385 | 2407.1 | 145 | 4.2 | 14.7±9.2 | -58.7±1.5 | 16.78±0.05 | 17.06±0.06 | 16.998±0.006 | -5.3±0.2 |
| 725.8192773 | 2025 Feb 19 | 10 / 0.381 | 215 / 0.506 | 2407.1 | 135 | 4.7 | 53.9±10.4 | -45.3±1.6 | 16.62±0.06 | 16.98±0.08 | 16.951±0.007 | -5.7±0.2 |
Notes. For each visit, we list the barycentric Julian date BJD, the UT date, the rotation cycle c and phase ϕ (assuming Prot = 11.35 d, see Sect. 3, and counting from BJD 2460608, i.e., prior to our first SPIRou observation), the orbital cycle o and phase ψ (using the ephemeris of Barber et al. 2024b, i.e., Porb = 8.834976 d and BJD0 = 2458821.8257), the total observing time texp, the peak SNR in the spectrum (in the H band) per 2.3 km s−1 pixel, the noise level in the LSD Stokes V profile, the estimated Bℓ with error bars, the differential temperature dT with error bars, the nightly averaged RVs and corresponding error bars derived from Stokes I LSD profiles of atomic and CO lines, the RVs and corresponding error bars from the LBL analysis, and the measured Pa-β EWs (the negative sign indicating absorption).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.