2025tgn results

Information

Transient
Name:AT2025tgn
Right ascension: 23h47m53.61s
Declination:6d02m09.24s
Discovery Date:Aug. 4, 2025, 9 a.m.
Classification:None
Redshift:None
MW E(B-V):0.084
Host
Name:
Right ascension: 23h47m53.80s
Declination:6d02m15.61s
Redshift:None
Photometric Redshift:0.070
 

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_z
 DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 31.88
Transient MWEBV processed 0.05
Host match processed 6.51
Host information processed 0.15
Host MWEBV processed 0.05
Global aperture construction processed 0.68
Global aperture photometry processed 6.08
Validate global photometry processed 17.42
Global host SED inference processed 448.88
Local aperture photometry processed 6.92
Validate local photometry processed 0.03
Local host SED inference processed 443.85
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):23h47m53.61s, 6d02m09.24s
semi major axis, semi minor axis (arcsec):1.5, 1.5
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 6.86 0.78 21.810 0.124 AB
DES_g 6.44 0.17 21.878 0.029 AB
PanSTARRS_g 5.26 0.36 22.097 0.074 AB
SDSS_r 8.05 1.03 21.635 0.139 AB
PanSTARRS_r 7.37 0.32 21.732 0.047 AB
DES_r 9.5 0.37 21.456 0.042 AB
SDSS_i 10.63 1.49 21.334 0.152 AB
PanSTARRS_i 10.72 0.46 21.324 0.046 AB
PanSTARRS_z 9.74 1.2 21.428 0.134 AB
SDSS_z 13.9 4.52 21.043 0.354 AB
DES_z 12.89 1.24 21.124 0.104 AB
PanSTARRS_y 6.0 2.56 21.955 0.464 AB

Aperture details

RA, DEC (J2000):23h47m53.80s, 6d02m15.95s
semi major axis, semi minor axis (arcsec):12.27, 10.13
angle (degrees, anti-clockwise from east):-97.11
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 45.47 6.76 19.756 0.161 AB
GALEX_NUV 47.4 4.96 19.710 0.114 AB
SDSS_u 168.17 10.39 18.336 0.067 AB
SDSS_g 420.51 6.09 17.341 0.016 AB
DES_g 433.17 1.37 17.308 0.003 AB
PanSTARRS_g 444.18 2.66 17.281 0.007 AB
SDSS_r 697.53 8.66 16.791 0.013 AB
PanSTARRS_r 618.56 2.4 16.922 0.004 AB
DES_r 783.97 3.21 16.664 0.004 AB
SDSS_i 972.85 12.15 16.430 0.014 AB
PanSTARRS_i 973.27 3.34 16.429 0.004 AB
PanSTARRS_z 1104.21 8.89 16.292 0.009 AB
SDSS_z 1220.31 34.04 16.184 0.030 AB
DES_z 1209.17 11.73 16.194 0.011 AB
PanSTARRS_y 1233.41 18.74 16.172 0.016 AB
2MASS_J 1552.74 301.73 15.027 0.211 Vega
2MASS_H 1909.84 470.82 14.330 0.268 Vega
2MASS_K 1321.11 502.23 14.260 0.413 Vega
WISE_W1 741.93 23.32 14.025 0.034 Vega
WISE_W2 419.52 33.41 14.004 0.086 Vega
WISE_W3 1032.98 179.98 11.191 0.189 Vega
WISE_W4 1348.5 897.19 9.455 0.722 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 7.834 8.076 8.262
{\rm log}_{10}({\rm SFR}) -1.851 -1.232 -0.485
{\rm log}_{10}({\rm sSFR}) -10.070 -9.342 -8.295
{\rm stellar\ age} 0.455 3.955 6.088

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.582 -0.811 -0.073
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.530 -0.434 0.116

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.183 0.552 1.164
\delta -0.442 -0.028 0.245
\tau_1/\tau_2 0.675 1.052 1.467
Q_{PAH} 1.054 2.674 4.973
U_{min} 2.747 7.726 14.924
{\rm log}_{10}(\gamma_e)\, -2.832 -1.825 -0.795

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.333 -0.276 0.205
{\rm log}_{10}(\tau_{AGN})\, 1.131 1.537 1.919

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.812 -1.398 -0.964
0.03-0.10 Gyr -2.016 -1.217 -0.361
0.10-0.33 Gyr -2.146 -1.361 -0.767
0.33-1.07 Gyr -3.179 -1.557 -1.176
1.07-3.52 Gyr -4.056 -1.965 -1.545
3.52-11.55 Gyr -4.612 -2.187 -1.711
11.55-12.83 Gyr -4.163 -2.256 -1.613

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.263 10.322 10.404
{\rm log}_{10}({\rm SFR}) 0.489 0.707 0.964
{\rm log}_{10}({\rm sSFR}) -9.855 -9.616 -9.376
{\rm stellar\ age} 7.060 7.866 10.045

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.807 -0.565 -0.432
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.686 -0.110 0.274

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.113 0.178 0.331
\delta -0.882 -0.633 -0.328
\tau_1/\tau_2 0.549 1.006 1.478
Q_{PAH} 0.216 0.736 2.013
U_{min} 2.306 6.720 14.262
{\rm log}_{10}(\gamma_e)\, -3.286 -2.111 -1.523

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.550 -3.826 -2.956
{\rm log}_{10}(\tau_{AGN})\, 1.089 1.605 1.961

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.148 0.035 0.183
0.03-0.10 Gyr 0.609 0.844 1.111
0.10-0.33 Gyr -1.652 -0.317 0.154
0.33-1.07 Gyr -1.771 -0.418 0.005
1.07-3.52 Gyr -1.303 -0.207 0.223
3.52-11.55 Gyr 0.148 0.464 0.584
11.55-12.83 Gyr 0.162 0.712 1.317