2026iyb results

Information

Transient
Name:AT2026iyb
Right ascension: 8h02m45.46s
Declination:40d40m22.73s
Discovery Date:March 26, 2026, 4:19 a.m.
Classification:None
Redshift:None
MW E(B-V):0.044
Host
Name:UGC04176
Right ascension: 8h02m42.87s
Declination:40d40m42.73s
Redshift:0.009922
Photometric Redshift:None
 

Cutout Download Report

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
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 17.09
Transient MWEBV processed 0.04
Host match processed 3.81
Host information processed 0.09
Host MWEBV processed 0.04
Global aperture construction processed 0.61
Global aperture photometry processed 5.71
Validate global photometry processed 14.45
Global host SED inference processed 528.75
Local aperture photometry processed 5.5
Validate local photometry processed 0.02
Local host SED inference processed 438.98
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):8h02m45.46s, 40d40m22.73s
semi major axis, semi minor axis (arcsec):9.83, 9.83
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 43.38 1.76 19.807 0.044 AB
GALEX_NUV 59.38 1.26 19.466 0.023 AB
SDSS_u 76.89 6.5 19.185 0.092 AB
SDSS_g 240.47 5.68 17.947 0.026 AB
DES_g 281.45 1.1 17.776 0.004 AB
PanSTARRS_g 261.45 2.16 17.857 0.009 AB
SDSS_r 307.97 7.23 17.679 0.026 AB
PanSTARRS_r 364.58 2.64 17.496 0.008 AB
SDSS_i 312.71 9.35 17.662 0.032 AB
PanSTARRS_i 418.95 2.59 17.345 0.007 AB
PanSTARRS_z 416.38 6.68 17.351 0.017 AB
SDSS_z 393.97 23.29 17.411 0.064 AB
DES_z 355.96 3.72 17.522 0.011 AB
PanSTARRS_y 450.68 20.56 17.265 0.050 AB
2MASS_J 772.22 203.01 15.786 0.285 Vega
2MASS_H 1062.85 383.46 14.966 0.392 Vega
2MASS_K 949.59 339.86 14.618 0.389 Vega
WISE_W1 162.12 16.35 15.676 0.110 Vega
WISE_W2 98.67 17.33 15.576 0.191 Vega
WISE_W3 278.55 71.42 12.614 0.278 Vega

Aperture details

RA, DEC (J2000):8h02m42.82s, 40d40m42.45s
semi major axis, semi minor axis (arcsec):52.24, 21.28
angle (degrees, anti-clockwise from east):-70.99
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 545.05 6.23 17.059 0.012 AB
GALEX_NUV 740.39 4.41 16.726 0.006 AB
DES_g 4072.83 4.11 14.875 0.001 AB
PanSTARRS_g 3997.27 7.29 14.896 0.002 AB
SDSS_r 4688.1 27.2 14.723 0.006 AB
PanSTARRS_r 5750.29 8.83 14.501 0.002 AB
PanSTARRS_i 6912.93 8.92 14.301 0.001 AB
PanSTARRS_z 7018.25 21.77 14.284 0.003 AB
DES_z 6250.88 14.35 14.410 0.002 AB
PanSTARRS_y 6752.41 66.44 14.326 0.011 AB
2MASS_J 7004.15 691.62 13.392 0.107 Vega
2MASS_H 7881.75 1305.94 12.791 0.180 Vega
2MASS_K 7227.96 1157.9 12.415 0.174 Vega
WISE_W1 3638.44 70.7 12.299 0.021 Vega
WISE_W3 3444.88 363.42 9.883 0.115 Vega
WISE_W4 7033.29 1787.66 7.662 0.276 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 7.856 7.998 8.098
{\rm log}_{10}({\rm SFR}) -2.294 -1.951 -1.700
{\rm log}_{10}({\rm sSFR}) -10.276 -9.957 -9.689
{\rm stellar\ age} 4.543 6.216 7.458

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.803 -1.508 -1.141
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.819 -1.450 -0.242

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.054 0.125 0.238
\delta -0.443 -0.013 0.243
\tau_1/\tau_2 0.681 0.977 1.291
Q_{PAH} 0.826 1.988 3.653
U_{min} 3.434 8.656 15.682
{\rm log}_{10}(\gamma_e)\, -1.717 -0.897 -0.348

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.139 -2.619 -1.417
{\rm log}_{10}(\tau_{AGN})\, 1.079 1.563 1.967

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.745 -2.327 -2.068
0.03-0.10 Gyr -2.286 -1.862 -1.573
0.10-0.33 Gyr -1.864 -1.578 -1.296
0.33-1.10 Gyr -2.113 -1.800 -1.579
1.10-3.64 Gyr -2.188 -1.901 -1.707
3.64-12.08 Gyr -2.348 -1.989 -1.790
12.08-13.42 Gyr -2.621 -2.013 -1.562

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.195 9.289 9.373
{\rm log}_{10}({\rm SFR}) -1.353 -0.877 -0.559
{\rm log}_{10}({\rm sSFR}) -10.689 -10.176 -9.843
{\rm stellar\ age} 5.140 6.649 7.939

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.806 -1.578 -1.327
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.942 -1.802 -1.307

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.094 0.198 0.314
\delta -0.163 0.146 0.333
\tau_1/\tau_2 0.461 0.832 1.199
Q_{PAH} 0.676 1.857 3.762
U_{min} 3.372 8.281 15.710
{\rm log}_{10}(\gamma_e)\, -3.266 -2.040 -1.365

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.742 -2.233 -1.521
{\rm log}_{10}(\tau_{AGN})\, 0.903 1.187 1.671

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.460 -1.329 -0.912
0.03-0.10 Gyr -1.422 -0.812 -0.419
0.10-0.33 Gyr -0.983 -0.521 -0.172
0.33-1.10 Gyr -1.127 -0.648 -0.401
1.10-3.64 Gyr -0.932 -0.610 -0.375
3.64-12.08 Gyr -1.025 -0.664 -0.493
12.08-13.42 Gyr -1.248 -0.632 -0.167