2026dtg results

Information

Transient
Name:AT2026dtg
Right ascension: 16h40m42.98s
Declination:35d23m36.12s
Discovery Date:Feb. 19, 2026, 5:47 a.m.
Classification:None
Redshift:None
MW E(B-V):0.027
Host
Name:SDSSJ164042.73+35233
Right ascension: 16h40m42.72s
Declination:35d23m36.78s
Redshift:None
Photometric Redshift:0.077
 

Cutout Download Report

Downloaded Unavailable
2MASS_H
2MASS_J
2MASS_K
WISE_W1
WISE_W2
WISE_W3
WISE_W4
GALEX_NUV
PanSTARRS_g
PanSTARRS_r
PanSTARRS_i
PanSTARRS_z
PanSTARRS_y
SDSS_i
SDSS_r
SDSS_u
SDSS_z
SDSS_g
DES_g
DES_z
GALEX_FUV
DES_r
DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 17.71
Transient MWEBV processed 0.07
Host match processed 4.18
Host information processed 0.04
Host MWEBV processed 0.18
Global aperture construction processed 0.63
Global aperture photometry processed 5.78
Validate global photometry processed 17.67
Global host SED inference processed 388.47
Local aperture photometry processed 5.76
Validate local photometry processed 0.02
Local host SED inference processed 462.27
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):16h40m42.98s, 35d23m36.12s
semi major axis, semi minor axis (arcsec):1.37, 1.37
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 11.52 0.33 21.246 0.031 AB
PanSTARRS_g 10.64 0.28 21.333 0.028 AB
SDSS_r 18.85 1.32 20.712 0.076 AB
PanSTARRS_r 16.44 0.37 20.860 0.024 AB
SDSS_i 26.66 1.75 20.335 0.071 AB
PanSTARRS_i 21.43 0.33 20.573 0.017 AB
PanSTARRS_z 23.14 0.77 20.489 0.036 AB
SDSS_z 31.26 4.74 20.163 0.165 AB
DES_z 30.06 0.97 20.205 0.035 AB
PanSTARRS_y 28.52 2.54 20.262 0.097 AB

Aperture details

RA, DEC (J2000):16h40m42.73s, 35d23m37.23s
semi major axis, semi minor axis (arcsec):12.25, 6.0
angle (degrees, anti-clockwise from east):-86.57
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 29.42 3.06 20.228 0.113 AB
SDSS_u 44.53 8.72 19.778 0.213 AB
SDSS_g 184.95 4.53 18.232 0.027 AB
DES_g 178.36 1.37 18.272 0.008 AB
PanSTARRS_g 187.25 1.72 18.219 0.010 AB
SDSS_r 296.31 6.32 17.721 0.023 AB
PanSTARRS_r 289.07 2.27 17.747 0.009 AB
SDSS_i 373.25 8.78 17.470 0.026 AB
PanSTARRS_i 364.96 2.04 17.494 0.006 AB
PanSTARRS_z 393.06 4.82 17.414 0.013 AB
SDSS_z 486.25 29.02 17.183 0.065 AB
DES_z 427.69 4.24 17.322 0.011 AB
PanSTARRS_y 508.81 15.77 17.134 0.034 AB
2MASS_J 459.02 185.45 16.351 0.439 Vega
2MASS_H 265.64 311.46 16.472 1.273 Vega
2MASS_K 831.85 346.09 14.762 0.452 Vega
WISE_W1 236.53 18.27 15.266 0.084 Vega
WISE_W2 157.1 20.63 15.071 0.143 Vega
WISE_W3 164.03 73.79 13.189 0.488 Vega
WISE_W4 334.61 440.59 10.969 1.430 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.345 8.633 8.791
{\rm log}_{10}({\rm SFR}) -2.146 -1.200 -0.188
{\rm log}_{10}({\rm sSFR}) -10.889 -9.866 -8.671
{\rm stellar\ age} 0.267 4.144 6.901

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.581 -0.914 -0.195
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.493 -0.678 0.110

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.306 0.804 1.450
\delta -0.436 -0.024 0.251
\tau_1/\tau_2 0.628 1.068 1.482
Q_{PAH} 1.009 2.663 5.165
U_{min} 3.061 8.931 16.731
{\rm log}_{10}(\gamma_e)\, -2.807 -1.628 -0.503

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.693 -0.349 0.175
{\rm log}_{10}(\tau_{AGN})\, 1.063 1.508 1.922

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.315 -1.928 -1.260
0.03-0.10 Gyr -2.318 -1.106 -0.030
0.10-0.33 Gyr -2.040 -0.963 -0.030
0.33-1.07 Gyr -3.194 -1.265 -0.641
1.07-3.50 Gyr -4.559 -1.528 -1.028
3.50-11.46 Gyr -5.428 -1.701 -1.129
11.46-12.74 Gyr -5.533 -1.722 -0.921

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.862 9.920 9.995
{\rm log}_{10}({\rm SFR}) -0.570 -0.312 -0.034
{\rm log}_{10}({\rm sSFR}) -10.482 -10.233 -9.951
{\rm stellar\ age} 6.074 6.907 8.076

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.036 -0.694 -0.453
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, 0.010 0.181 0.339

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.058 0.168 0.341
\delta -0.649 -0.197 0.147
\tau_1/\tau_2 0.808 1.153 1.508
Q_{PAH} 0.955 2.536 4.615
U_{min} 2.691 7.621 14.223
{\rm log}_{10}(\gamma_e)\, -2.613 -1.533 -0.595

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.009 -2.668 -1.591
{\rm log}_{10}(\tau_{AGN})\, 1.104 1.550 1.891

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.798 -0.548 -0.379
0.03-0.10 Gyr -0.569 -0.239 0.087
0.10-0.33 Gyr -0.263 0.010 0.254
0.33-1.07 Gyr -0.360 -0.094 0.104
1.07-3.50 Gyr -0.378 -0.109 0.084
3.50-11.46 Gyr -0.148 0.035 0.153
11.46-12.74 Gyr -0.335 0.134 0.605