| Name: | AT2026cow |
| Right ascension: | 8h56m11.04s |
| Declination: | -5d50m39.89s |
| Discovery Date: | Feb. 6, 2026, 8:22 a.m. |
| Classification: | None |
| Redshift: | None |
| MW E(B-V): | 0.022 |
| Name: | J085611.29-055041.15 |
| Right ascension: | 8h56m11.29s |
| Declination: | -5d50m41.15s |
| Redshift: | None |
| Photometric Redshift: | 0.050 |
| 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 DES_g DES_r DES_z |
SDSS_i SDSS_r SDSS_u SDSS_z SDSS_g DES_i DES_Y |
| Task Name | Status | Time (s) |
|---|---|---|
| Cutout download | processed | 5.99 |
| Transient MWEBV | processed | 0.03 |
| Host match | processed | 5.46 |
| Host information | processed | 0.15 |
| Host MWEBV | processed | 0.05 |
| Global aperture construction | processed | 0.61 |
| Global aperture photometry | processed | 4.73 |
| Validate global photometry | processed | 15.39 |
| Global host SED inference | processed | 567.13 |
| Local aperture photometry | processed | 4.71 |
| Validate local photometry | processed | 0.02 |
| Local host SED inference | processed | 436.25 |
| RA, DEC (J2000): | 8h56m11.04s, -5d50m39.89s |
| semi major axis, semi minor axis (arcsec): | 2.04, 2.04 |
| angle (degrees, anti-clockwise from east): | 0.0 |
| Filter | Flux {\rm (\mu Jy)} | Flux error {\rm (\mu Jy)} | Mag | Mag error | Mag sys |
|---|---|---|---|---|---|
| DES_g | 9.28 | 0.2 | 21.482 | 0.024 | AB |
| PanSTARRS_g | 10.16 | 0.48 | 21.383 | 0.051 | AB |
| PanSTARRS_r | 14.83 | 0.65 | 20.972 | 0.047 | AB |
| DES_r | 14.16 | 0.43 | 21.022 | 0.033 | AB |
| PanSTARRS_i | 16.14 | 0.63 | 20.880 | 0.042 | AB |
| PanSTARRS_z | 17.55 | 1.59 | 20.789 | 0.099 | AB |
| DES_z | 16.48 | 1.0 | 20.857 | 0.066 | AB |
| PanSTARRS_y | 23.05 | 3.82 | 20.493 | 0.180 | AB |
| RA, DEC (J2000): | 8h56m11.29s, -5d50m40.77s |
| semi major axis, semi minor axis (arcsec): | 5.36, 4.01 |
| angle (degrees, anti-clockwise from east): | -169.67 |
| Filter | Flux {\rm (\mu Jy)} | Flux error {\rm (\mu Jy)} | Mag | Mag error | Mag sys |
|---|---|---|---|---|---|
| GALEX_FUV | 9.42 | 0.82 | 21.465 | 0.094 | AB |
| GALEX_NUV | 12.2 | 0.62 | 21.184 | 0.055 | AB |
| DES_g | 80.11 | 0.55 | 19.141 | 0.007 | AB |
| PanSTARRS_g | 82.7 | 1.1 | 19.106 | 0.014 | AB |
| PanSTARRS_r | 121.45 | 1.45 | 18.689 | 0.013 | AB |
| 2MASS_H | 148.34 | 193.98 | 17.104 | 1.420 | Vega |
| WISE_W2 | 30.58 | 13.66 | 16.847 | 0.485 | Vega |
| WISE_W4 | -267.82 | 390.52 | Vega |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(M_{\ast}/M_{\odot})\, | 7.905 | 8.102 | 8.241 |
| {\rm log}_{10}({\rm SFR}) | -2.323 | -1.666 | -0.889 |
| {\rm log}_{10}({\rm sSFR}) | -10.462 | -9.774 | -8.865 |
| {\rm stellar\ age} | 2.021 | 5.525 | 7.260 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(Z_{\ast}/Z_{\odot}) | -1.724 | -1.257 | -0.645 |
| {\rm log}_{10}(Z_{gas}/Z_{\odot})\, | -1.727 | -0.949 | 0.142 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| \tau_2 | 0.146 | 0.568 | 1.184 |
| \delta | -0.395 | -0.003 | 0.267 |
| \tau_1/\tau_2 | 0.693 | 1.064 | 1.428 |
| Q_{PAH} | 1.267 | 3.115 | 5.458 |
| U_{min} | 3.150 | 8.134 | 15.126 |
| {\rm log}_{10}(\gamma_e)\, | -2.781 | -1.724 | -0.712 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(f_{AGN})\, | -3.068 | -0.443 | 0.172 |
| {\rm log}_{10}(\tau_{AGN})\, | 1.119 | 1.493 | 1.906 |
| Lookback time | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| 0.00-0.03 Gyr | -2.508 | -1.841 | -1.255 |
| 0.03-0.10 Gyr | -2.434 | -1.668 | -0.800 |
| 0.10-0.33 Gyr | -2.293 | -1.598 | -0.944 |
| 0.33-1.09 Gyr | -2.491 | -1.770 | -1.280 |
| 1.09-3.57 Gyr | -2.801 | -1.834 | -1.541 |
| 3.57-11.78 Gyr | -3.060 | -1.938 | -1.647 |
| 11.78-13.08 Gyr | -3.159 | -1.994 | -1.450 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(M_{\ast}/M_{\odot})\, | 8.982 | 9.197 | 9.343 |
| {\rm log}_{10}({\rm SFR}) | -0.857 | -0.392 | 0.146 |
| {\rm log}_{10}({\rm sSFR}) | -10.092 | -9.609 | -9.018 |
| {\rm stellar\ age} | 1.975 | 6.161 | 8.205 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(Z_{\ast}/Z_{\odot}) | -1.519 | -0.768 | -0.160 |
| {\rm log}_{10}(Z_{gas}/Z_{\odot})\, | -1.596 | -0.153 | 0.219 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| \tau_2 | 0.241 | 0.816 | 1.448 |
| \delta | -0.286 | 0.081 | 0.290 |
| \tau_1/\tau_2 | 0.530 | 0.920 | 1.356 |
| Q_{PAH} | 0.395 | 1.554 | 3.998 |
| U_{min} | 2.873 | 8.350 | 15.499 |
| {\rm log}_{10}(\gamma_e)\, | -3.237 | -1.886 | -0.731 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(f_{AGN})\, | -3.983 | -1.887 | -0.576 |
| {\rm log}_{10}(\tau_{AGN})\, | 1.035 | 1.471 | 1.904 |
| Lookback time | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| 0.00-0.03 Gyr | -1.625 | -0.520 | -0.072 |
| 0.03-0.10 Gyr | -1.068 | -0.398 | 0.243 |
| 0.10-0.33 Gyr | -1.382 | -0.545 | 0.169 |
| 0.33-1.09 Gyr | -1.995 | -0.907 | -0.312 |
| 1.09-3.57 Gyr | -2.370 | -0.953 | -0.566 |
| 3.57-11.78 Gyr | -2.311 | -0.877 | -0.544 |
| 11.78-13.08 Gyr | -2.360 | -0.825 | -0.162 |