2026iwh results

Information

Transient
Name:AT2026iwh
Right ascension: 15h55m09.60s
Declination:28d34m46.86s
Discovery Date:March 22, 2026, 7:20 p.m.
Classification:None
Redshift:None
MW E(B-V):0.044
Host
Name:1839917
Right ascension: 15h55m09.59s
Declination:28d34m45.64s
Redshift:0.077553
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_r
DES_z
 DES_g
DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 19.54
Transient MWEBV processed 0.05
Host match processed 4.31
Host information processed 0.1
Host MWEBV processed 0.04
Global aperture construction processed 0.59
Global aperture photometry processed 5.81
Validate global photometry processed 17.48
Global host SED inference processed 486.46
Local aperture photometry processed 5.99
Validate local photometry processed 0.03
Local host SED inference processed 582.34
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):15h55m09.60s, 28d34m46.86s
semi major axis, semi minor axis (arcsec):1.36, 1.36
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 178.84 0.46 18.269 0.003 AB
SDSS_r 407.33 5.27 17.375 0.014 AB
PanSTARRS_r 437.12 0.64 17.298 0.002 AB
DES_r 451.01 1.52 17.265 0.004 AB
SDSS_i 617.07 6.5 16.924 0.011 AB
PanSTARRS_i 598.02 0.52 16.958 0.001 AB
PanSTARRS_z 804.02 1.2 16.637 0.002 AB
SDSS_z 884.74 8.98 16.533 0.011 AB
DES_z 830.05 5.12 16.602 0.007 AB
PanSTARRS_y 949.97 2.5 16.456 0.003 AB

Aperture details

RA, DEC (J2000):15h55m09.61s, 28d34m46.15s
semi major axis, semi minor axis (arcsec):16.36, 12.66
angle (degrees, anti-clockwise from east):-131.76
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 8.65 3.11 21.557 0.391 AB
GALEX_NUV 15.27 2.42 20.940 0.172 AB
SDSS_u 248.03 10.8 17.914 0.047 AB
SDSS_g 1409.79 10.33 16.027 0.008 AB
PanSTARRS_g 1564.64 4.03 15.914 0.003 AB
SDSS_r 3438.27 16.24 15.059 0.005 AB
PanSTARRS_r 3670.25 5.42 14.988 0.002 AB
DES_r 3900.22 4.78 14.922 0.001 AB
SDSS_i 5255.83 20.66 14.598 0.004 AB
PanSTARRS_i 5176.16 4.33 14.615 0.001 AB
PanSTARRS_z 6756.05 11.11 14.326 0.002 AB
SDSS_z 7068.47 53.27 14.277 0.008 AB
DES_z 7429.11 15.75 14.223 0.002 AB
PanSTARRS_y 8326.77 25.47 14.099 0.003 AB
2MASS_J 11326.83 348.53 12.870 0.033 Vega
2MASS_H 13665.85 504.77 12.193 0.040 Vega
2MASS_K 13269.8 638.5 11.755 0.052 Vega
WISE_W1 5416.36 44.94 11.867 0.009 Vega
WISE_W2 3172.09 44.26 11.808 0.015 Vega
WISE_W3 917.33 108.92 11.320 0.129 Vega
WISE_W4 156.36 333.86 11.795 2.318 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.353 10.471 10.599
{\rm log}_{10}({\rm SFR}) -2.452 -0.682 0.114
{\rm log}_{10}({\rm sSFR}) -12.926 -11.165 -10.292
{\rm stellar\ age} 6.377 7.847 11.865

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.486 -0.968 -0.609
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.599 -0.721 0.090

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.432 0.757 1.041
\delta -0.814 -0.530 -0.153
\tau_1/\tau_2 0.599 1.020 1.444
Q_{PAH} 1.146 3.231 5.648
U_{min} 3.335 9.066 16.945
{\rm log}_{10}(\gamma_e)\, -2.828 -1.008 -0.258

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.038 -2.412 -0.739
{\rm log}_{10}(\tau_{AGN})\, 0.989 1.497 1.993

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.751 -0.750 -0.069
0.03-0.10 Gyr -3.473 -0.821 0.182
0.10-0.33 Gyr -3.788 -0.828 0.271
0.33-1.07 Gyr -4.195 -0.769 0.292
1.07-3.50 Gyr -3.107 -0.351 0.545
3.50-11.46 Gyr -0.794 0.480 0.739
11.46-12.73 Gyr -0.080 0.842 1.707

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 11.366 11.420 11.511
{\rm log}_{10}({\rm SFR}) -1.484 -0.770 -0.297
{\rm log}_{10}({\rm sSFR}) -12.987 -12.171 -11.720
{\rm stellar\ age} 7.697 9.534 12.058

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.567 -0.431 -0.340
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.570 -0.711 0.138

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.159 0.245 0.346
\delta -0.901 -0.694 -0.446
\tau_1/\tau_2 0.543 0.952 1.367
Q_{PAH} 0.305 0.812 1.834
U_{min} 3.193 8.985 16.249
{\rm log}_{10}(\gamma_e)\, -2.906 -1.636 -1.002

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.587 -3.850 -2.905
{\rm log}_{10}(\tau_{AGN})\, 1.082 1.611 1.955

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.086 -0.917 -0.377
0.03-0.10 Gyr -1.930 -0.819 -0.237
0.10-0.33 Gyr -2.759 -0.983 -0.200
0.33-1.07 Gyr -2.988 -1.041 -0.200
1.07-3.50 Gyr -2.362 -0.531 0.660
3.50-11.46 Gyr -0.508 1.463 1.668
11.46-12.73 Gyr 1.368 2.214 2.652