| Name: | AT2026byb |
| Right ascension: | 15h19m59.25s |
| Declination: | 28d54m25.78s |
| Discovery Date: | Jan. 31, 2026, 2:52 p.m. |
| Classification: | None |
| Redshift: | None |
| MW E(B-V): | 0.022 |
| Name: | J151959.45+285430.75 |
| Right ascension: | 15h19m59.45s |
| Declination: | 28d54m30.75s |
| Redshift: | 0.082454 |
| 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_z |
DES_r DES_i DES_Y |
| Task Name | Status | Time (s) |
|---|---|---|
| Cutout download | processed | 16.78 |
| Transient MWEBV | processed | 0.03 |
| Host match | processed | 4.74 |
| Host information | processed | 0.08 |
| Host MWEBV | processed | 0.04 |
| Global aperture construction | processed | 0.65 |
| Global aperture photometry | processed | 5.99 |
| Validate global photometry | processed | 17.89 |
| Global host SED inference | processed | 416.19 |
| Local aperture photometry | processed | 5.67 |
| Validate local photometry | processed | 0.02 |
| Local host SED inference | processed | 447.89 |
| RA, DEC (J2000): | 15h19m59.25s, 28d54m25.78s |
| semi major axis, semi minor axis (arcsec): | 1.29, 1.29 |
| 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 | 8.42 | 0.17 | 21.586 | 0.022 | AB |
| PanSTARRS_r | 13.86 | 0.4 | 21.046 | 0.031 | AB |
| SDSS_i | 17.71 | 1.43 | 20.780 | 0.088 | AB |
| PanSTARRS_i | 16.41 | 0.45 | 20.862 | 0.030 | AB |
| PanSTARRS_z | 21.29 | 1.06 | 20.579 | 0.054 | AB |
| SDSS_z | 23.8 | 5.36 | 20.459 | 0.244 | AB |
| DES_z | 22.02 | 1.18 | 20.543 | 0.058 | AB |
| PanSTARRS_y | 26.27 | 2.57 | 20.351 | 0.106 | AB |
| RA, DEC (J2000): | 15h19m59.45s, 28d54m30.90s |
| semi major axis, semi minor axis (arcsec): | 14.06, 5.04 |
| angle (degrees, anti-clockwise from east): | -175.87 |
| Filter | Flux {\rm (\mu Jy)} | Flux error {\rm (\mu Jy)} | Mag | Mag error | Mag sys |
|---|---|---|---|---|---|
| GALEX_FUV | 27.65 | 4.2 | 20.296 | 0.165 | AB |
| GALEX_NUV | 34.41 | 3.06 | 20.058 | 0.097 | AB |
| SDSS_u | 52.46 | 8.42 | 19.600 | 0.174 | AB |
| SDSS_g | 318.21 | 5.18 | 17.643 | 0.018 | AB |
| DES_g | 329.36 | 1.07 | 17.606 | 0.004 | AB |
| PanSTARRS_g | 332.92 | 2.26 | 17.594 | 0.007 | AB |
| SDSS_r | 599.7 | 7.26 | 16.955 | 0.013 | AB |
| PanSTARRS_r | 588.95 | 2.56 | 16.975 | 0.005 | AB |
| SDSS_i | 822.87 | 9.66 | 16.612 | 0.013 | AB |
| PanSTARRS_i | 770.11 | 2.92 | 16.684 | 0.004 | AB |
| PanSTARRS_z | 943.16 | 6.71 | 16.464 | 0.008 | AB |
| SDSS_z | 1169.02 | 35.22 | 16.230 | 0.033 | AB |
| DES_z | 1073.53 | 8.18 | 16.323 | 0.008 | AB |
| PanSTARRS_y | 1251.86 | 16.37 | 16.156 | 0.014 | AB |
| 2MASS_J | 1641.04 | 185.62 | 14.967 | 0.123 | Vega |
| 2MASS_H | 1860.22 | 311.93 | 14.358 | 0.182 | Vega |
| 2MASS_K | 1954.59 | 269.37 | 13.835 | 0.150 | Vega |
| WISE_W2 | 463.19 | 20.13 | 13.897 | 0.047 | Vega |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(M_{\ast}/M_{\odot})\, | 8.428 | 8.652 | 8.776 |
| {\rm log}_{10}({\rm SFR}) | -2.488 | -1.390 | -0.298 |
| {\rm log}_{10}({\rm sSFR}) | -11.172 | -10.103 | -8.857 |
| {\rm stellar\ age} | 0.794 | 5.180 | 6.912 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(Z_{\ast}/Z_{\odot}) | -1.349 | -0.505 | -0.083 |
| {\rm log}_{10}(Z_{gas}/Z_{\odot})\, | -1.536 | -0.763 | 0.060 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| \tau_2 | 0.219 | 0.747 | 1.254 |
| \delta | -0.359 | -0.009 | 0.261 |
| \tau_1/\tau_2 | 0.651 | 1.064 | 1.472 |
| Q_{PAH} | 1.333 | 3.328 | 5.548 |
| U_{min} | 3.253 | 8.765 | 16.466 |
| {\rm log}_{10}(\gamma_e)\, | -2.859 | -1.697 | -0.617 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(f_{AGN})\, | -1.771 | -0.283 | 0.156 |
| {\rm log}_{10}(\tau_{AGN})\, | 1.127 | 1.554 | 1.963 |
| Lookback time | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| 0.00-0.03 Gyr | -3.777 | -2.134 | -1.379 |
| 0.03-0.10 Gyr | -2.558 | -1.318 | -0.142 |
| 0.10-0.33 Gyr | -2.192 | -1.177 | -0.428 |
| 0.33-1.07 Gyr | -2.775 | -1.165 | -0.659 |
| 1.07-3.49 Gyr | -3.548 | -1.282 | -0.982 |
| 3.49-11.40 Gyr | -4.275 | -1.440 | -1.127 |
| 11.40-12.67 Gyr | -4.370 | -1.512 | -0.890 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(M_{\ast}/M_{\odot})\, | 10.523 | 10.561 | 10.610 |
| {\rm log}_{10}({\rm SFR}) | -0.295 | -0.047 | 0.231 |
| {\rm log}_{10}({\rm sSFR}) | -10.891 | -10.618 | -10.347 |
| {\rm stellar\ age} | 7.283 | 8.027 | 10.061 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(Z_{\ast}/Z_{\odot}) | -0.408 | -0.156 | -0.019 |
| {\rm log}_{10}(Z_{gas}/Z_{\odot})\, | -1.276 | -0.109 | 0.213 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| \tau_2 | 0.063 | 0.161 | 0.335 |
| \delta | -0.265 | 0.091 | 0.286 |
| \tau_1/\tau_2 | 0.740 | 1.158 | 1.569 |
| Q_{PAH} | 1.437 | 3.821 | 5.798 |
| U_{min} | 2.682 | 7.482 | 14.569 |
| {\rm log}_{10}(\gamma_e)\, | -2.428 | -1.036 | -0.270 |
| Parameter | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| {\rm log}_{10}(f_{AGN})\, | -4.537 | -3.760 | -2.669 |
| {\rm log}_{10}(\tau_{AGN})\, | 1.048 | 1.549 | 1.912 |
| Lookback time | Lower (16%) | Median (50%) | Upper (84%) |
|---|---|---|---|
| 0.00-0.03 Gyr | -0.476 | -0.228 | -0.055 |
| 0.03-0.10 Gyr | -0.351 | 0.012 | 0.349 |
| 0.10-0.33 Gyr | -0.233 | 0.076 | 0.344 |
| 0.33-1.07 Gyr | -0.388 | -0.032 | 0.210 |
| 1.07-3.49 Gyr | -0.395 | 0.079 | 0.408 |
| 3.49-11.40 Gyr | 0.406 | 0.712 | 0.803 |
| 11.40-12.67 Gyr | 0.550 | 1.027 | 1.551 |