2026gcn results

Information

Transient
Name:AT2026gcn
Right ascension: 8h48m36.90s
Declination:28d53m59.90s
Discovery Date:Feb. 7, 2026, 3:36 p.m.
Classification:None
Redshift:None
MW E(B-V):0.039
Host
Name:1849457
Right ascension: 8h48m36.78s
Declination:28d53m59.23s
Redshift:None
Photometric Redshift:0.152
 

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_i
DES_z
DES_Y
 

Processing Status: blocked

Task Name Status Time (s)
Cutout download processed 16.32
Transient MWEBV processed 0.04
Host match processed 4.73
Host information processed 0.15
Host MWEBV processed 0.04
Global aperture construction processed 0.6
Global aperture photometry processed 4.69
Validate global photometry processed 14.61
Global host SED inference processed 501.03
Local aperture photometry processed 4.94
Validate local photometry no valid phot 0.03
Local host SED inference not processed None
 

Imaging data


 

Spectral Energy Distribution


 

Aperture Photometry


Aperture details

Data not available


Aperture details

RA, DEC (J2000):8h48m36.80s, 28d53m58.97s
semi major axis, semi minor axis (arcsec):5.44, 5.11
angle (degrees, anti-clockwise from east):-36.6
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 1.03 0.42 23.872 0.443 AB
GALEX_NUV 3.28 0.53 22.612 0.177 AB
SDSS_u 31.65 3.92 20.149 0.134 AB
SDSS_g 207.71 4.01 18.106 0.021 AB
PanSTARRS_g 226.5 1.51 18.012 0.007 AB
SDSS_r 520.89 6.35 17.108 0.013 AB
PanSTARRS_r 539.15 1.77 17.071 0.004 AB
SDSS_i 768.63 7.92 16.686 0.011 AB
PanSTARRS_i 754.44 1.78 16.706 0.003 AB
PanSTARRS_z 961.85 3.62 16.442 0.004 AB
SDSS_z 1048.43 16.55 16.349 0.017 AB
PanSTARRS_y 1181.13 8.58 16.219 0.008 AB
2MASS_J 1480.87 102.22 15.079 0.075 Vega
2MASS_H 2155.28 153.8 14.199 0.077 Vega
2MASS_K 1749.02 182.17 13.955 0.113 Vega
WISE_W1 714.1 14.82 14.067 0.023 Vega
WISE_W2 480.84 25.83 13.856 0.058 Vega
WISE_W3 51.35 76.47 14.450 1.617 Vega
WISE_W4 496.05 472.13 10.541 1.033 Vega
 

Host SED inference


Local parameter details

Documentation

Data not available


Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.938 11.032 11.107
{\rm log}_{10}({\rm SFR}) -2.814 -0.601 0.233
{\rm log}_{10}({\rm sSFR}) -13.668 -11.594 -10.749
{\rm stellar\ age} 5.524 6.807 8.585

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.196 -0.954 -0.782
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.472 -0.710 -0.048

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.293 0.394 0.506
\delta -0.953 -0.835 -0.630
\tau_1/\tau_2 0.557 1.004 1.436
Q_{PAH} 0.649 2.177 4.616
U_{min} 3.278 9.542 17.508
{\rm log}_{10}(\gamma_e)\, -2.816 -1.611 -0.676

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.332 -3.230 -2.097
{\rm log}_{10}(\tau_{AGN})\, 1.069 1.554 1.939

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.622 -0.848 0.142
0.03-0.10 Gyr -3.909 -0.729 0.290
0.10-0.32 Gyr -3.069 -0.378 0.593
0.32-1.03 Gyr -2.151 0.156 0.893
1.03-3.32 Gyr -0.465 0.940 1.352
3.32-10.65 Gyr 0.399 1.208 1.387
10.65-11.84 Gyr -0.856 1.083 1.961