2025afcg results

Information

Transient
Name:AT2025afcg
Right ascension: 23h45m18.00s
Declination:-4d01m43.03s
Discovery Date:Nov. 26, 2025, 4:17 a.m.
Classification:None
Redshift:None
MW E(B-V):0.034
Host
Name:
Right ascension: 23h45m18.54s
Declination:-4d01m46.75s
Redshift:None
Photometric Redshift:0.053
 

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 21.41
Transient MWEBV processed 0.11
Host match processed 5.29
Host information processed 0.16
Host MWEBV processed 0.11
Global aperture construction processed 0.64
Global aperture photometry processed 7.27
Validate global photometry processed 18.73
Global host SED inference processed 1164.78
Local aperture photometry processed 7.13
Validate local photometry processed 0.03
Local host SED inference processed 432.22
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):23h45m18.00s, -4d01m43.03s
semi major axis, semi minor axis (arcsec):1.93, 1.93
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 18.71 2.51 20.720 0.146 AB
SDSS_g 18.49 1.27 20.733 0.075 AB
DES_g 21.13 0.23 20.588 0.012 AB
PanSTARRS_g 21.0 0.53 20.595 0.027 AB
SDSS_r 25.91 1.66 20.366 0.070 AB
PanSTARRS_r 26.1 0.4 20.358 0.016 AB
DES_r 31.41 0.59 20.157 0.020 AB
SDSS_i 36.41 2.32 19.997 0.069 AB
PanSTARRS_i 38.48 0.63 19.937 0.018 AB
PanSTARRS_z 41.51 1.59 19.855 0.042 AB
SDSS_z 40.54 6.77 19.880 0.181 AB
DES_z 37.75 1.72 19.958 0.050 AB
PanSTARRS_y 45.99 3.12 19.743 0.074 AB

Aperture details

RA, DEC (J2000):23h45m18.53s, -4d01m46.35s
semi major axis, semi minor axis (arcsec):16.23, 5.0
angle (degrees, anti-clockwise from east):-62.79
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 25.2 1.41 20.397 0.061 AB
GALEX_NUV 40.1 1.13 19.892 0.031 AB
SDSS_u 252.88 11.52 17.893 0.049 AB
DES_g 211.75 0.85 18.085 0.004 AB
PanSTARRS_g 281.02 2.53 17.778 0.010 AB
SDSS_r 474.69 7.45 17.209 0.017 AB
PanSTARRS_r 419.84 1.83 17.342 0.005 AB
DES_r 378.54 2.24 17.455 0.006 AB
SDSS_i 666.11 10.54 16.841 0.017 AB
PanSTARRS_i 618.78 2.93 16.921 0.005 AB
PanSTARRS_z 776.8 7.45 16.674 0.010 AB
SDSS_z 654.41 31.57 16.860 0.052 AB
DES_z 602.2 7.2 16.951 0.013 AB
PanSTARRS_y 838.04 14.57 16.592 0.019 AB
2MASS_J 1032.18 237.75 15.471 0.250 Vega
2MASS_H 1323.82 382.24 14.728 0.313 Vega
2MASS_K 372.05 454.81 15.636 1.327 Vega
WISE_W1 478.38 19.22 14.502 0.044 Vega
WISE_W2 296.2 25.4 14.382 0.093 Vega
WISE_W3 848.55 130.39 11.404 0.167 Vega
WISE_W4 599.36 593.98 10.336 1.076 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.097 8.449 8.672
{\rm log}_{10}({\rm SFR}) -1.041 -0.562 -0.180
{\rm log}_{10}({\rm sSFR}) -9.623 -9.000 -8.253
{\rm stellar\ age} 1.260 5.423 7.464

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.567 -0.903 -0.270
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.764 -1.450 -0.125

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.439 0.832 1.231
\delta -0.257 0.024 0.240
\tau_1/\tau_2 0.788 1.163 1.555
Q_{PAH} 0.658 2.145 4.745
U_{min} 3.299 8.991 16.599
{\rm log}_{10}(\gamma_e)\, -3.036 -1.895 -0.805

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.437 -1.484 -0.462
{\rm log}_{10}(\tau_{AGN})\, 1.004 1.468 1.927

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.190 -0.848 -0.537
0.03-0.10 Gyr -1.057 -0.499 -0.061
0.10-0.33 Gyr -2.177 -1.146 -0.593
0.33-1.08 Gyr -2.981 -1.611 -1.124
1.08-3.57 Gyr -3.053 -1.654 -1.265
3.57-11.74 Gyr -3.266 -1.656 -1.237
11.74-13.04 Gyr -3.282 -1.652 -0.967

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.031 10.154 10.224
{\rm log}_{10}({\rm SFR}) -0.205 0.342 0.849
{\rm log}_{10}({\rm sSFR}) -10.343 -9.797 -9.285
{\rm stellar\ age} 7.753 11.856 12.312

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.682 -1.310 -0.874
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.096 0.326 0.449

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.359 0.562 0.741
\delta -0.341 -0.155 -0.004
\tau_1/\tau_2 0.340 0.775 1.311
Q_{PAH} 0.306 0.896 1.837
U_{min} 3.956 10.511 18.009
{\rm log}_{10}(\gamma_e)\, -3.358 -2.300 -1.441

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.068 -2.953 -2.122
{\rm log}_{10}(\tau_{AGN})\, 1.086 1.574 1.959

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.320 -1.705 -0.601
0.03-0.10 Gyr -0.057 0.496 1.004
0.10-0.33 Gyr -4.094 -3.026 -1.527
0.33-1.08 Gyr -7.409 -5.561 -3.189
1.08-3.57 Gyr -5.248 -3.491 -1.697
3.57-11.74 Gyr -2.451 -0.791 0.284
11.74-13.04 Gyr -0.010 1.249 1.352