2026vch results

Information

Transient
Name:AT2026vch
Right ascension: 21h33m09.37s
Declination:-0d40m22.97s
Discovery Date:July 14, 2026, 2:06 a.m.
Classification:None
Redshift:None
MW E(B-V):0.038
Host
Name:J213309.36-004022.42
Object ID:9906621218882908
Catalog Name:decals
Catalog Release:dr9
Right ascension: 21h33m09.36s
Declination:-0d40m22.42s
Redshift:None
Photometric Redshift:0.072
 

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: completed

Task Name Status Time (s)
Cutout download processed 22.71
Transient MWEBV processed 0.1
Host match processed 7.55
Host information processed 0.2
Host MWEBV processed 0.06
Global aperture construction processed 2.93
Global aperture photometry processed 7.74
Validate global photometry processed 20.93
Global host SED inference processed 490.73
Local aperture photometry processed 7.64
Validate local photometry processed 0.03
Local host SED inference processed 517.27
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):21h33m09.37s, -0d40m22.97s
semi major axis, semi minor axis (arcsec):1.46, 1.46
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_g 6.77 0.8 21.824 0.128 AB
DES_g 8.09 0.06 21.630 0.008 AB
PanSTARRS_g 6.78 0.34 21.822 0.054 AB
SDSS_r 7.6 1.05 21.699 0.150 AB
PanSTARRS_r 8.79 0.38 21.541 0.047 AB
DES_r 10.76 0.1 21.321 0.010 AB
SDSS_i 10.72 1.52 21.324 0.154 AB
PanSTARRS_i 8.42 0.45 21.587 0.058 AB
DES_i 11.24 0.31 21.273 0.029 AB
PanSTARRS_z 13.3 1.14 21.090 0.093 AB
SDSS_z 2.08 5.2 23.104 2.711 AB
DES_z 12.29 0.4 21.176 0.035 AB
PanSTARRS_y 9.01 2.91 21.513 0.351 AB

Aperture details

RA, DEC (J2000):21h33m09.35s, -0d40m22.20s
semi major axis, semi minor axis (arcsec):5.37, 2.83
angle (degrees, anti-clockwise from east):207.44
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 3.26 0.39 22.618 0.131 AB
GALEX_NUV 3.94 0.31 22.411 0.085 AB
SDSS_u 15.02 3.06 20.959 0.222 AB
SDSS_g 15.31 1.64 20.938 0.116 AB
DES_g 17.96 0.13 20.764 0.008 AB
PanSTARRS_g 15.42 0.9 20.930 0.063 AB
SDSS_r 18.83 2.43 20.713 0.140 AB
PanSTARRS_r 20.76 1.0 20.607 0.052 AB
DES_r 24.15 0.23 20.443 0.010 AB
SDSS_i 26.66 3.69 20.336 0.150 AB
PanSTARRS_i 22.73 1.18 20.508 0.057 AB
DES_i 25.29 0.61 20.392 0.026 AB
PanSTARRS_z 30.06 2.97 20.205 0.107 AB
SDSS_z 8.07 13.85 21.633 1.864 AB
DES_z 27.73 0.83 20.293 0.032 AB
PanSTARRS_y 33.62 7.57 20.084 0.244 AB
2MASS_J -79.63 113.84 Vega
2MASS_H 2.47 206.62 21.549 90.648 Vega
2MASS_K 291.76 204.76 15.900 0.762 Vega
WISE_W1 4.09 7.93 19.673 2.108 Vega
WISE_W2 2.68 12.15 19.493 4.930 Vega
WISE_W3 21.24 67.64 15.408 3.457 Vega
WISE_W4 -296.0 492.58 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 7.592 7.907 8.106
{\rm log}_{10}({\rm SFR}) -1.594 -0.996 -0.493
{\rm log}_{10}({\rm sSFR}) -9.655 -8.895 -7.963
{\rm stellar\ age} 0.211 2.983 5.520

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.085 -0.313 0.003
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.635 -1.299 -0.550

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.136 0.311 0.883
\delta -0.727 -0.243 0.169
\tau_1/\tau_2 0.705 1.145 1.569
Q_{PAH} 1.370 3.381 5.655
U_{min} 3.022 8.527 15.652
{\rm log}_{10}(\gamma_e)\, -2.822 -1.621 -0.609

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.416 -0.176 0.199
{\rm log}_{10}(\tau_{AGN})\, 1.249 1.658 1.976

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.792 -1.463 -1.126
0.03-0.10 Gyr -1.613 -0.896 -0.353
0.10-0.33 Gyr -2.825 -1.297 -0.836
0.33-1.07 Gyr -4.415 -1.864 -1.311
1.07-3.52 Gyr -5.105 -2.392 -1.752
3.52-11.52 Gyr -5.420 -2.590 -1.960
11.52-12.80 Gyr -5.299 -2.606 -1.820

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.027 8.398 8.637
{\rm log}_{10}({\rm SFR}) -0.810 -0.186 0.318
{\rm log}_{10}({\rm sSFR}) -9.250 -8.476 -7.921
{\rm stellar\ age} 0.121 2.987 6.454

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.632 -1.066 -0.254
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.598 -0.444 0.270

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.238 0.659 1.339
\delta -0.341 0.034 0.214
\tau_1/\tau_2 0.605 1.126 1.605
Q_{PAH} 1.219 3.058 4.996
U_{min} 3.803 10.390 18.034
{\rm log}_{10}(\gamma_e)\, -2.948 -1.650 -0.678

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.457 -1.363 -0.426
{\rm log}_{10}(\tau_{AGN})\, 0.981 1.391 1.851

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.869 -1.451 -0.856
0.03-0.10 Gyr -0.696 -0.042 0.476
0.10-0.33 Gyr -3.401 -1.209 -0.378
0.33-1.07 Gyr -5.236 -2.189 -1.187
1.07-3.52 Gyr -6.082 -2.377 -1.356
3.52-11.52 Gyr -6.358 -2.353 -1.413
11.52-12.80 Gyr -6.454 -2.283 -1.098