2026hht results

Information

Transient
Name:AT2026hht
Right ascension: 8h06m39.12s
Declination:39d05m39.12s
Discovery Date:March 25, 2026, 3:07 a.m.
Classification:None
Redshift:None
MW E(B-V):0.046
Host
Name:UGC04219
Right ascension: 8h06m42.80s
Declination:39d05m24.77s
Redshift:0.041749
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_g
DES_z
 DES_r
DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 21.22
Transient MWEBV processed 0.13
Host match processed 3.85
Host information processed 0.06
Host MWEBV processed 0.06
Global aperture construction processed 0.65
Global aperture photometry processed 6.14
Validate global photometry processed 19.24
Global host SED inference processed 442.96
Local aperture photometry processed 5.77
Validate local photometry processed 0.03
Local host SED inference processed 455.32
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):8h06m39.12s, 39d05m39.12s
semi major axis, semi minor axis (arcsec):2.43, 2.43
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 0.78 1.58 24.165 2.197 AB
SDSS_g 5.01 0.94 22.151 0.205 AB
DES_g 4.43 0.22 22.284 0.053 AB
PanSTARRS_g 4.4 0.71 22.291 0.174 AB
SDSS_r 4.12 1.27 22.363 0.336 AB
PanSTARRS_r 5.98 0.73 21.958 0.132 AB
SDSS_i 8.25 2.0 21.609 0.263 AB
PanSTARRS_i 6.19 0.66 21.921 0.116 AB
PanSTARRS_z 7.58 1.59 21.701 0.228 AB
SDSS_z 14.63 6.23 20.987 0.463 AB
DES_z -0.11 0.65 AB
PanSTARRS_y 21.75 5.3 20.556 0.264 AB

Aperture details

RA, DEC (J2000):8h06m42.76s, 39d05m24.95s
semi major axis, semi minor axis (arcsec):17.6, 14.33
angle (degrees, anti-clockwise from east):-26.09
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 65.56 2.89 19.358 0.048 AB
GALEX_NUV 120.44 2.26 18.698 0.020 AB
SDSS_u 491.25 11.57 17.172 0.026 AB
SDSS_g 2328.37 13.5 15.482 0.006 AB
DES_g 2357.16 3.8 15.469 0.002 AB
PanSTARRS_g 2476.46 4.71 15.415 0.002 AB
SDSS_r 4795.89 19.63 14.698 0.004 AB
PanSTARRS_r 4972.17 5.25 14.659 0.001 AB
SDSS_i 7262.18 25.47 14.247 0.004 AB
PanSTARRS_i 7189.44 4.79 14.258 0.001 AB
PanSTARRS_z 8673.31 10.37 14.055 0.001 AB
SDSS_z 9290.11 47.36 13.980 0.006 AB
DES_z 8151.5 13.6 14.122 0.002 AB
PanSTARRS_y 10777.75 31.09 13.819 0.003 AB
2MASS_J 14123.68 480.53 12.630 0.037 Vega
2MASS_H 15841.77 697.91 12.033 0.048 Vega
2MASS_K 14002.08 613.44 11.697 0.048 Vega
WISE_W1 6454.01 72.33 11.676 0.012 Vega
WISE_W2 3781.83 73.07 11.617 0.021 Vega
WISE_W3 9300.8 282.75 8.805 0.033 Vega
WISE_W4 8939.09 1379.08 7.402 0.167 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 6.769 7.352 7.776
{\rm log}_{10}({\rm SFR}) -1.576 -1.304 -1.050
{\rm log}_{10}({\rm sSFR}) -9.179 -8.598 -7.972
{\rm stellar\ age} 0.129 4.330 7.243

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.171 -0.542 -0.031
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.491 -0.257 -0.071

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.956 1.351 1.753
\delta -0.094 0.146 0.305
\tau_1/\tau_2 0.725 1.114 1.529
Q_{PAH} 0.442 1.687 4.073
U_{min} 2.900 8.271 15.725
{\rm log}_{10}(\gamma_e)\, -3.048 -2.069 -1.240

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.262 -1.267 -0.568
{\rm log}_{10}(\tau_{AGN})\, 1.022 1.429 1.820

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.281 -0.950 -0.662
0.03-0.10 Gyr -3.881 -1.959 -1.253
0.10-0.33 Gyr -5.509 -2.747 -1.885
0.33-1.09 Gyr -6.292 -3.018 -2.161
1.09-3.60 Gyr -6.259 -3.060 -2.203
3.60-11.88 Gyr -6.413 -3.029 -2.200
11.88-13.20 Gyr -6.433 -3.001 -2.005

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.928 11.003 11.090
{\rm log}_{10}({\rm SFR}) 0.104 0.438 0.812
{\rm log}_{10}({\rm sSFR}) -10.877 -10.533 -10.173
{\rm stellar\ age} 7.965 10.569 12.386

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.351 -0.982 -0.742
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.667 0.227 0.392

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.457 0.603 0.765
\delta -0.298 -0.174 -0.070
\tau_1/\tau_2 0.402 0.840 1.317
Q_{PAH} 0.298 0.730 1.341
U_{min} 3.039 8.238 15.410
{\rm log}_{10}(\gamma_e)\, -3.536 -2.908 -2.251

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.523 -3.729 -2.859
{\rm log}_{10}(\tau_{AGN})\, 1.113 1.644 1.977

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.304 0.288 0.591
0.03-0.10 Gyr -0.102 0.459 0.910
0.10-0.33 Gyr -2.000 -0.095 0.488
0.33-1.09 Gyr -3.384 -0.521 0.195
1.09-3.60 Gyr -3.221 -0.678 0.274
3.60-11.88 Gyr -0.769 0.873 1.203
11.88-13.20 Gyr 1.014 1.924 2.211