| Name: | AT2026byi |
| Right ascension: | 8h52m51.01s |
| Declination: | 17d39m16.71s |
| Discovery Date: | Jan. 17, 2026, 9:20 a.m. |
| Classification: | None |
| Redshift: | None |
| MW E(B-V): | |
| Name: | 1538090 |
| Right ascension: | 8h52m50.66s |
| Declination: | 17d39m14.14s |
| Redshift: | 0.095143 |
| Photometric Redshift: | None |
| Downloaded | Unavailable |
|---|---|
|
2MASS_H 2MASS_J 2MASS_K WISE_W1 WISE_W2 WISE_W3 WISE_W4 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 |
GALEX_NUV GALEX_FUV DES_i DES_Y |
| Task Name | Status | Time (s) |
|---|---|---|
| Cutout download | processed | 16.33 |
| Transient MWEBV | processed | 0.04 |
| Host match | processed | 4.04 |
| Host information | processed | 0.09 |
| Host MWEBV | processed | 0.04 |
| Global aperture construction | processed | 0.63 |
| Global aperture photometry | processed | 6.03 |
| Validate global photometry | processed | 18.34 |
| Global host SED inference | processed | 539.63 |
| Local aperture photometry | processed | 6.06 |
| Validate local photometry | processed | 0.03 |
| Local host SED inference | processed | 448.12 |
| RA, DEC (J2000): | 8h52m51.01s, 17d39m16.71s |
| semi major axis, semi minor axis (arcsec): | 1.13, 1.13 |
| angle (degrees, anti-clockwise from east): | 0.0 |
| Filter | Flux {\rm (\mu Jy)} | Flux error {\rm (\mu Jy)} | Mag | Mag error | Mag sys |
|---|---|---|---|---|---|
| DES_r | 21.63 | 0.34 | 20.562 | 0.017 | AB |
| PanSTARRS_i | 27.98 | 0.46 | 20.283 | 0.018 | AB |
| PanSTARRS_z | 36.69 | 0.75 | 19.989 | 0.022 | AB |
| DES_z | 38.02 | 1.06 | 19.950 | 0.030 | AB |
| PanSTARRS_y | 37.58 | 1.93 | 19.963 | 0.056 | AB |
| RA, DEC (J2000): | 8h52m50.69s, 17d39m14.54s |
| semi major axis, semi minor axis (arcsec): | 9.95, 4.7 |
| angle (degrees, anti-clockwise from east): | -114.35 |
| Filter | Flux {\rm (\mu Jy)} | Flux error {\rm (\mu Jy)} | Mag | Mag error | Mag sys |
|---|---|---|---|---|---|
| SDSS_u | 69.13 | 5.68 | 19.301 | 0.089 | AB |
| SDSS_g | 250.46 | 4.55 | 17.903 | 0.020 | AB |
| DES_g | 248.4 | 0.83 | 17.912 | 0.004 | AB |
| PanSTARRS_g | 283.72 | 1.92 | 17.768 | 0.007 | AB |
| SDSS_r | 574.83 | 7.05 | 17.001 | 0.013 | AB |
| PanSTARRS_r | 587.4 | 1.73 | 16.978 | 0.003 | AB |
| DES_r | 564.61 | 1.81 | 17.021 | 0.003 | AB |
| SDSS_i | 852.89 | 9.76 | 16.573 | 0.012 | AB |
| PanSTARRS_i | 856.65 | 2.74 | 16.568 | 0.003 | AB |
| PanSTARRS_z | 1124.43 | 4.5 | 16.273 | 0.004 | AB |
| SDSS_z | 1189.94 | 26.18 | 16.211 | 0.024 | AB |
| DES_z | 1057.33 | 5.68 | 16.339 | 0.006 | AB |
| PanSTARRS_y | 1314.29 | 11.48 | 16.103 | 0.009 | AB |
| 2MASS_J | 1679.37 | 142.35 | 14.942 | 0.092 | Vega |
| 2MASS_H | 2055.33 | 221.55 | 14.250 | 0.117 | Vega |
| 2MASS_K | 2551.58 | 230.64 | 13.545 | 0.098 | Vega |
| WISE_W1 | 882.68 | 21.36 | 13.836 | 0.026 | Vega |
| WISE_W2 | 538.77 | 24.35 | 13.732 | 0.049 | Vega |
| WISE_W3 | 930.42 | 114.8 | 11.304 | 0.134 | Vega |
| WISE_W4 | 287.14 | 687.0 | 11.135 | 2.598 | Vega |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(M_{\ast}/M_{\odot})\, | 8.973 | 9.172 | 9.305 |
| {\rm log}_{10}({\rm SFR}) | -2.224 | -1.391 | -0.270 |
| {\rm log}_{10}({\rm sSFR}) | -11.407 | -10.604 | -9.408 |
| {\rm stellar\ age} | 1.417 | 6.050 | 7.762 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(Z_{\ast}/Z_{\odot}) | -1.372 | -0.641 | -0.141 |
| {\rm log}_{10}(Z_{gas}/Z_{\odot})\, | -1.458 | -0.802 | -0.074 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| \tau_2 | 0.304 | 0.830 | 1.657 |
| \delta | -0.308 | 0.010 | 0.235 |
| \tau_1/\tau_2 | 0.578 | 0.973 | 1.381 |
| Q_{PAH} | 1.095 | 3.054 | 5.606 |
| U_{min} | 3.109 | 8.406 | 15.532 |
| {\rm log}_{10}(\gamma_e)\, | -3.074 | -2.046 | -0.861 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(f_{AGN})\, | -2.838 | -0.370 | 0.164 |
| {\rm log}_{10}(\tau_{AGN})\, | 1.110 | 1.433 | 1.911 |
| Lookback time | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| 0.00-0.03 Gyr | -2.910 | -1.667 | -0.975 |
| 0.03-0.10 Gyr | -2.523 | -1.413 | -0.178 |
| 0.10-0.33 Gyr | -2.194 | -1.228 | -0.227 |
| 0.33-1.06 Gyr | -2.305 | -0.997 | -0.232 |
| 1.06-3.46 Gyr | -2.931 | -0.855 | -0.510 |
| 3.46-11.26 Gyr | -3.162 | -0.843 | -0.554 |
| 11.26-12.51 Gyr | -2.947 | -0.864 | -0.181 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(M_{\ast}/M_{\odot})\, | 10.739 | 10.836 | 10.912 |
| {\rm log}_{10}({\rm SFR}) | -3.148 | -1.239 | -0.056 |
| {\rm log}_{10}({\rm sSFR}) | -14.086 | -12.079 | -10.920 |
| {\rm stellar\ age} | 7.686 | 11.117 | 11.880 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(Z_{\ast}/Z_{\odot}) | -0.905 | -0.648 | -0.474 |
| {\rm log}_{10}(Z_{gas}/Z_{\odot})\, | -1.383 | -0.564 | 0.080 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| \tau_2 | 0.238 | 0.345 | 0.486 |
| \delta | -0.797 | -0.371 | -0.029 |
| \tau_1/\tau_2 | 0.363 | 0.791 | 1.249 |
| Q_{PAH} | 0.788 | 2.400 | 4.857 |
| U_{min} | 2.867 | 8.729 | 17.287 |
| {\rm log}_{10}(\gamma_e)\, | -2.900 | -1.674 | -0.712 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(f_{AGN})\, | -4.375 | -3.397 | -2.346 |
| {\rm log}_{10}(\tau_{AGN})\, | 1.019 | 1.514 | 1.929 |
| Lookback time | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| 0.00-0.03 Gyr | -3.505 | -1.035 | -0.037 |
| 0.03-0.10 Gyr | -4.930 | -1.831 | -0.061 |
| 0.10-0.33 Gyr | -6.371 | -2.632 | -0.621 |
| 0.33-1.06 Gyr | -6.479 | -2.925 | -0.894 |
| 1.06-3.46 Gyr | -4.166 | -1.941 | -0.364 |
| 3.46-11.26 Gyr | -1.795 | 0.377 | 1.033 |
| 11.26-12.51 Gyr | 0.830 | 1.922 | 2.066 |