2026exa results

Information

Transient
Name:AT2026exa
Right ascension: 8h31m40.41s
Declination:31d36m29.04s
Discovery Date:March 3, 2026, 4:09 a.m.
Classification:None
Redshift:None
MW E(B-V):0.042
Host
Name:SDSSJ083140.38+31362
Right ascension: 8h31m40.32s
Declination:31d36m29.45s
Redshift:None
Photometric Redshift:0.048
 

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_r
DES_z
 DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 18.6
Transient MWEBV processed 0.04
Host match processed 4.23
Host information processed 0.08
Host MWEBV processed 0.05
Global aperture construction processed 0.61
Global aperture photometry processed 5.78
Validate global photometry processed 17.61
Global host SED inference processed 498.39
Local aperture photometry processed 5.76
Validate local photometry processed 0.05
Local host SED inference processed 505.95
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):8h31m40.41s, 31d36m29.04s
semi major axis, semi minor axis (arcsec):2.11, 2.11
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 25.9 1.72 20.367 0.072 AB
SDSS_g 128.05 3.02 18.632 0.026 AB
DES_g 122.46 0.82 18.680 0.007 AB
PanSTARRS_g 121.75 0.55 18.686 0.005 AB
SDSS_r 283.97 4.46 17.767 0.017 AB
PanSTARRS_r 262.73 0.75 17.851 0.003 AB
DES_r 297.71 1.9 17.716 0.007 AB
SDSS_i 428.35 5.53 17.321 0.014 AB
PanSTARRS_i 386.47 0.83 17.432 0.002 AB
PanSTARRS_z 524.28 1.9 17.101 0.004 AB
SDSS_z 581.58 7.81 16.988 0.015 AB
DES_z 592.9 4.91 16.968 0.009 AB
PanSTARRS_y 612.5 3.92 16.932 0.007 AB

Aperture details

RA, DEC (J2000):8h31m40.37s, 31d36m29.46s
semi major axis, semi minor axis (arcsec):6.75, 3.49
angle (degrees, anti-clockwise from east):-168.36
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 3.36 0.46 22.585 0.150 AB
GALEX_NUV 5.04 0.47 22.145 0.102 AB
SDSS_u 46.23 3.22 19.738 0.076 AB
SDSS_g 190.4 3.95 18.201 0.023 AB
DES_g 190.47 1.04 18.200 0.006 AB
PanSTARRS_g 198.96 1.15 18.153 0.006 AB
SDSS_r 400.2 5.58 17.394 0.015 AB
PanSTARRS_r 402.87 1.55 17.387 0.004 AB
DES_r 437.65 2.32 17.297 0.006 AB
SDSS_i 597.9 7.02 16.958 0.013 AB
PanSTARRS_i 598.98 1.77 16.956 0.003 AB
PanSTARRS_z 750.98 4.14 16.711 0.006 AB
SDSS_z 772.48 13.01 16.680 0.018 AB
DES_z 830.58 5.96 16.602 0.008 AB
PanSTARRS_y 912.64 8.78 16.499 0.010 AB
2MASS_J 1079.96 129.49 15.422 0.130 Vega
2MASS_H 1657.1 202.05 14.484 0.132 Vega
2MASS_K 1382.02 215.49 14.211 0.169 Vega
WISE_W1 451.65 15.11 14.564 0.036 Vega
WISE_W2 249.69 16.95 14.567 0.074 Vega
WISE_W3 87.79 61.91 13.867 0.766 Vega
WISE_W4 420.54 413.23 10.720 1.067 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.820 9.939 10.062
{\rm log}_{10}({\rm SFR}) -1.927 -0.971 -0.343
{\rm log}_{10}({\rm sSFR}) -11.983 -10.905 -10.208
{\rm stellar\ age} 7.050 8.410 12.169

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.220 -0.767 -0.481
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.822 -0.902 0.291

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.460 0.860 1.246
\delta -0.502 -0.200 0.183
\tau_1/\tau_2 0.612 0.991 1.361
Q_{PAH} 0.938 2.750 4.946
U_{min} 3.059 8.445 15.594
{\rm log}_{10}(\gamma_e)\, -3.076 -1.612 -0.695

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.956 -1.910 -0.529
{\rm log}_{10}(\tau_{AGN})\, 0.953 1.440 1.939

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.092 -0.921 -0.343
0.03-0.10 Gyr -2.611 -1.120 -0.339
0.10-0.33 Gyr -3.133 -1.222 -0.401
0.33-1.09 Gyr -3.551 -1.212 -0.394
1.09-3.58 Gyr -3.291 -0.840 -0.091
3.58-11.80 Gyr -1.150 -0.036 0.181
11.80-13.11 Gyr -0.337 0.416 1.119

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.983 10.063 10.124
{\rm log}_{10}({\rm SFR}) -1.068 -0.591 -0.143
{\rm log}_{10}({\rm sSFR}) -11.138 -10.654 -10.205
{\rm stellar\ age} 8.131 11.386 12.377

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.176 -0.865 -0.647
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, 0.049 0.290 0.422

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.315 0.485 0.670
\delta -0.756 -0.549 -0.366
\tau_1/\tau_2 0.630 1.059 1.521
Q_{PAH} 0.336 1.200 2.757
U_{min} 2.832 8.268 15.788
{\rm log}_{10}(\gamma_e)\, -2.832 -1.854 -1.000

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.443 -3.561 -2.584
{\rm log}_{10}(\tau_{AGN})\, 1.100 1.591 1.953

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.708 -0.960 -0.643
0.03-0.10 Gyr -1.105 -0.511 -0.016
0.10-0.33 Gyr -3.368 -1.260 -0.591
0.33-1.09 Gyr -4.495 -1.651 -0.912
1.09-3.58 Gyr -3.825 -1.625 -0.769
3.58-11.80 Gyr -1.877 -0.310 0.230
11.80-13.11 Gyr 0.241 1.104 1.257