2026cow results

Information

Transient
Name:AT2026cow
Right ascension: 8h56m11.04s
Declination:-5d50m39.89s
Discovery Date:Feb. 6, 2026, 8:22 a.m.
Classification:None
Redshift:None
MW E(B-V):0.022
Host
Name:J085611.29-055041.15
Right ascension: 8h56m11.29s
Declination:-5d50m41.15s
Redshift:None
Photometric Redshift:0.050
 

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
DES_g
DES_r
DES_z
SDSS_i
SDSS_r
SDSS_u
SDSS_z
SDSS_g
DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 5.99
Transient MWEBV processed 0.03
Host match processed 5.46
Host information processed 0.15
Host MWEBV processed 0.05
Global aperture construction processed 0.61
Global aperture photometry processed 4.73
Validate global photometry processed 15.39
Global host SED inference processed 567.13
Local aperture photometry processed 4.71
Validate local photometry processed 0.02
Local host SED inference processed 436.25
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):8h56m11.04s, -5d50m39.89s
semi major axis, semi minor axis (arcsec):2.04, 2.04
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 9.28 0.2 21.482 0.024 AB
PanSTARRS_g 10.16 0.48 21.383 0.051 AB
PanSTARRS_r 14.83 0.65 20.972 0.047 AB
DES_r 14.16 0.43 21.022 0.033 AB
PanSTARRS_i 16.14 0.63 20.880 0.042 AB
PanSTARRS_z 17.55 1.59 20.789 0.099 AB
DES_z 16.48 1.0 20.857 0.066 AB
PanSTARRS_y 23.05 3.82 20.493 0.180 AB

Aperture details

RA, DEC (J2000):8h56m11.29s, -5d50m40.77s
semi major axis, semi minor axis (arcsec):5.36, 4.01
angle (degrees, anti-clockwise from east):-169.67
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 9.42 0.82 21.465 0.094 AB
GALEX_NUV 12.2 0.62 21.184 0.055 AB
DES_g 80.11 0.55 19.141 0.007 AB
PanSTARRS_g 82.7 1.1 19.106 0.014 AB
PanSTARRS_r 121.45 1.45 18.689 0.013 AB
2MASS_H 148.34 193.98 17.104 1.420 Vega
WISE_W2 30.58 13.66 16.847 0.485 Vega
WISE_W4 -267.82 390.52 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 7.905 8.102 8.241
{\rm log}_{10}({\rm SFR}) -2.323 -1.666 -0.889
{\rm log}_{10}({\rm sSFR}) -10.462 -9.774 -8.865
{\rm stellar\ age} 2.021 5.525 7.260

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.724 -1.257 -0.645
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.727 -0.949 0.142

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.146 0.568 1.184
\delta -0.395 -0.003 0.267
\tau_1/\tau_2 0.693 1.064 1.428
Q_{PAH} 1.267 3.115 5.458
U_{min} 3.150 8.134 15.126
{\rm log}_{10}(\gamma_e)\, -2.781 -1.724 -0.712

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.068 -0.443 0.172
{\rm log}_{10}(\tau_{AGN})\, 1.119 1.493 1.906

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.508 -1.841 -1.255
0.03-0.10 Gyr -2.434 -1.668 -0.800
0.10-0.33 Gyr -2.293 -1.598 -0.944
0.33-1.09 Gyr -2.491 -1.770 -1.280
1.09-3.57 Gyr -2.801 -1.834 -1.541
3.57-11.78 Gyr -3.060 -1.938 -1.647
11.78-13.08 Gyr -3.159 -1.994 -1.450

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.982 9.197 9.343
{\rm log}_{10}({\rm SFR}) -0.857 -0.392 0.146
{\rm log}_{10}({\rm sSFR}) -10.092 -9.609 -9.018
{\rm stellar\ age} 1.975 6.161 8.205

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.519 -0.768 -0.160
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.596 -0.153 0.219

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.241 0.816 1.448
\delta -0.286 0.081 0.290
\tau_1/\tau_2 0.530 0.920 1.356
Q_{PAH} 0.395 1.554 3.998
U_{min} 2.873 8.350 15.499
{\rm log}_{10}(\gamma_e)\, -3.237 -1.886 -0.731

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.983 -1.887 -0.576
{\rm log}_{10}(\tau_{AGN})\, 1.035 1.471 1.904

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.625 -0.520 -0.072
0.03-0.10 Gyr -1.068 -0.398 0.243
0.10-0.33 Gyr -1.382 -0.545 0.169
0.33-1.09 Gyr -1.995 -0.907 -0.312
1.09-3.57 Gyr -2.370 -0.953 -0.566
3.57-11.78 Gyr -2.311 -0.877 -0.544
11.78-13.08 Gyr -2.360 -0.825 -0.162