| Name: | AT2026si |
| Right ascension: | 11h40m11.82s |
| Declination: | 1d43m58.16s |
| Discovery Date: | Jan. 9, 2026, 8:42 p.m. |
| Classification: | None |
| Redshift: | None |
| MW E(B-V): | |
| Name: | |
| Right ascension: | 11h40m11.88s |
| Declination: | 1d43m59.50s |
| Redshift: | 0.102370 |
| Photometric Redshift: | None |
| Downloaded | Unavailable |
|---|---|
|
2MASS_H 2MASS_J 2MASS_K WISE_W1 WISE_W2 WISE_W3 WISE_W4 GALEX_NUV GALEX_FUV PanSTARRS_g PanSTARRS_r PanSTARRS_i PanSTARRS_z PanSTARRS_y SDSS_i SDSS_r SDSS_u SDSS_z SDSS_g DES_g DES_r DES_z |
DES_i DES_Y |
| Task Name | Status | Time (s) |
|---|---|---|
| Cutout download | processed | 20.34 |
| Transient MWEBV | processed | 0.04 |
| Host match | processed | 4.76 |
| Host information | processed | 0.15 |
| Host MWEBV | processed | 0.05 |
| Global aperture construction | processed | 0.65 |
| Global aperture photometry | processed | 6.73 |
| Validate global photometry | processed | 19.24 |
| Global host SED inference | processed | 410.03 |
| Local aperture photometry | processed | 8.14 |
| Validate local photometry | processed | 0.03 |
| Local host SED inference | processed | 546.22 |
| RA, DEC (J2000): | 11h40m11.82s, 1d43m58.16s |
| semi major axis, semi minor axis (arcsec): | 1.06, 1.06 |
| angle (degrees, anti-clockwise from east): | 0.0 |
| Filter | Flux {\rm (\mu Jy)} | Flux error {\rm (\mu Jy)} | Mag | Mag error | Mag sys |
|---|---|---|---|---|---|
| DES_z | 23.85 | 1.2 | 20.456 | 0.055 | AB |
| PanSTARRS_y | 21.01 | 1.45 | 20.594 | 0.075 | AB |
| RA, DEC (J2000): | 11h40m11.88s, 1d43m59.71s |
| semi major axis, semi minor axis (arcsec): | 4.38, 2.73 |
| angle (degrees, anti-clockwise from east): | -145.73 |
| Filter | Flux {\rm (\mu Jy)} | Flux error {\rm (\mu Jy)} | Mag | Mag error | Mag sys |
|---|---|---|---|---|---|
| GALEX_FUV | 9.43 | 3.05 | 21.464 | 0.351 | AB |
| GALEX_NUV | 14.41 | 0.66 | 21.004 | 0.050 | AB |
| SDSS_u | 33.32 | 3.17 | 20.093 | 0.103 | AB |
| SDSS_g | 57.27 | 2.29 | 19.505 | 0.043 | AB |
| DES_g | 61.25 | 0.69 | 19.432 | 0.012 | AB |
| PanSTARRS_g | 57.86 | 0.67 | 19.494 | 0.013 | AB |
| SDSS_r | 86.21 | 3.0 | 19.061 | 0.038 | AB |
| PanSTARRS_r | 81.58 | 0.91 | 19.121 | 0.012 | AB |
| DES_r | 83.3 | 0.78 | 19.098 | 0.010 | AB |
| SDSS_i | 112.3 | 4.06 | 18.774 | 0.039 | AB |
| PanSTARRS_i | 104.66 | 0.75 | 18.851 | 0.008 | AB |
| PanSTARRS_z | 115.67 | 1.87 | 18.742 | 0.018 | AB |
| SDSS_z | 150.75 | 12.22 | 18.454 | 0.088 | AB |
| DES_z | 114.76 | 2.82 | 18.751 | 0.027 | AB |
| PanSTARRS_y | 128.09 | 4.56 | 18.631 | 0.039 | AB |
| 2MASS_J | 36.85 | 121.01 | 19.089 | 3.566 | Vega |
| 2MASS_H | 14.29 | 165.95 | 19.645 | 12.611 | Vega |
| 2MASS_K | 123.66 | 209.92 | 16.832 | 1.843 | Vega |
| WISE_W1 | 51.76 | 1.54 | 16.916 | 0.032 | Vega |
| WISE_W2 | 39.09 | 1.93 | 16.581 | 0.054 | Vega |
| WISE_W3 | 62.65 | 8.04 | 14.234 | 0.139 | Vega |
| WISE_W4 | 476.98 | 36.4 | 10.584 | 0.083 | Vega |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(M_{\ast}/M_{\odot})\, | 8.400 | 8.904 | 9.155 |
| {\rm log}_{10}({\rm SFR}) | -0.995 | -0.485 | -0.076 |
| {\rm log}_{10}({\rm sSFR}) | -9.979 | -9.350 | -8.551 |
| {\rm stellar\ age} | 1.833 | 5.716 | 8.048 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(Z_{\ast}/Z_{\odot}) | -1.606 | -0.824 | -0.092 |
| {\rm log}_{10}(Z_{gas}/Z_{\odot})\, | -1.253 | -0.641 | 0.064 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| \tau_2 | 0.508 | 0.928 | 1.415 |
| \delta | -0.551 | -0.105 | 0.239 |
| \tau_1/\tau_2 | 0.460 | 0.850 | 1.275 |
| Q_{PAH} | 0.712 | 2.344 | 4.952 |
| U_{min} | 3.182 | 8.551 | 16.211 |
| {\rm log}_{10}(\gamma_e)\, | -3.088 | -1.951 | -0.648 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(f_{AGN})\, | -2.991 | -1.035 | -0.167 |
| {\rm log}_{10}(\tau_{AGN})\, | 0.932 | 1.390 | 1.906 |
| Lookback time | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| 0.00-0.03 Gyr | -0.869 | -0.265 | 0.088 |
| 0.03-0.10 Gyr | -2.243 | -0.830 | -0.135 |
| 0.10-0.33 Gyr | -3.460 | -1.336 | -0.594 |
| 0.33-1.06 Gyr | -3.712 | -1.385 | -0.651 |
| 1.06-3.44 Gyr | -3.287 | -1.390 | -0.819 |
| 3.44-11.18 Gyr | -2.816 | -1.291 | -0.740 |
| 11.18-12.42 Gyr | -2.819 | -1.225 | -0.274 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(M_{\ast}/M_{\odot})\, | 9.404 | 9.509 | 9.621 |
| {\rm log}_{10}({\rm SFR}) | -0.391 | -0.064 | 0.227 |
| {\rm log}_{10}({\rm sSFR}) | -9.942 | -9.599 | -9.253 |
| {\rm stellar\ age} | 5.420 | 6.509 | 7.701 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(Z_{\ast}/Z_{\odot}) | -1.326 | -0.898 | -0.544 |
| {\rm log}_{10}(Z_{gas}/Z_{\odot})\, | -1.533 | -0.105 | 0.329 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| \tau_2 | 0.098 | 0.175 | 0.320 |
| \delta | -0.777 | -0.372 | 0.009 |
| \tau_1/\tau_2 | 0.624 | 0.983 | 1.359 |
| Q_{PAH} | 0.297 | 0.938 | 1.986 |
| U_{min} | 2.814 | 7.777 | 14.697 |
| {\rm log}_{10}(\gamma_e)\, | -2.741 | -1.966 | -1.285 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(f_{AGN})\, | -4.400 | -3.459 | -2.274 |
| {\rm log}_{10}(\tau_{AGN})\, | 1.014 | 1.477 | 1.915 |
| Lookback time | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| 0.00-0.03 Gyr | -1.222 | -0.812 | -0.599 |
| 0.03-0.10 Gyr | -0.292 | 0.076 | 0.377 |
| 0.10-0.33 Gyr | -0.481 | -0.073 | 0.204 |
| 0.33-1.06 Gyr | -1.088 | -0.566 | -0.275 |
| 1.06-3.44 Gyr | -0.947 | -0.552 | -0.320 |
| 3.44-11.18 Gyr | -0.651 | -0.394 | -0.214 |
| 11.18-12.42 Gyr | -0.842 | -0.314 | 0.195 |