2025zgd

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Information

Transient

Name: AT2025zgd
Right ascension: 14h56m47.07s
Declination: 20d11m38.18s
Discovery Date: Sept. 26, 2025, 2:37 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.030

Host

Name:
Right ascension: 14h56m46.84s
Declination: 20d11m39.40s
Redshift: 0.105983
Photometric Redshift:
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 19.42
Transient MWEBV processed 0.03
Host match processed 4.91
Host information processed 0.06
Host MWEBV processed 0.04
Global aperture construction processed 0.63
Global aperture photometry processed 7.41
Validate global photometry processed 18.95
Global host SED inference processed 373.21
Local aperture photometry processed 6.9
Validate local photometry processed 0.03
Local host SED inference processed 581.2
 

Cutout Download Report

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:
 

Aperture Photometry


Aperture details

RA, DEC (J2000) = 14h56m47.07s, 20d11m38.18s
semi major axis, semi minor axis (arcsec) = 1.03, 1.03
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_z 33.48 1.19 20.088 0.039 AB
PanSTARRS_y 32.4 1.56 20.124 0.052 AB

Aperture details

RA, DEC (J2000) = 14h56m46.82s, 20d11m39.19s
semi major axis, semi minor axis (arcsec) = 9.8, 9.65
angle (degrees, anti-clockwise from east) = -31.73

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 57.11 6.67 19.508 0.127 AB
GALEX_NUV 78.32 4.77 19.165 0.066 AB
SDSS_u 209.5 8.62 18.097 0.045 AB
SDSS_g 455.61 6.05 17.254 0.014 AB
DES_g 490.38 1.17 17.174 0.003 AB
PanSTARRS_g 475.84 2.34 17.206 0.005 AB
SDSS_r 742.32 7.98 16.724 0.012 AB
PanSTARRS_r 754.12 2.39 16.706 0.003 AB
DES_r 806.1 2.56 16.634 0.003 AB
SDSS_i 991.18 10.11 16.410 0.011 AB
PanSTARRS_i 1001.78 2.69 16.398 0.003 AB
PanSTARRS_z 1110.71 6.13 16.286 0.006 AB
SDSS_z 1190.7 33.57 16.210 0.031 AB
DES_z 1202.61 7.49 16.200 0.007 AB
PanSTARRS_y 1235.32 14.56 16.171 0.013 AB
2MASS_J 1166.04 229.46 15.338 0.214 Vega
2MASS_H 1593.22 363.14 14.527 0.247 Vega
2MASS_K 1609.18 407.03 14.046 0.275 Vega
WISE_W1 809.9 17.53 13.930 0.024 Vega
WISE_W2 515.1 22.21 13.781 0.047 Vega
WISE_W3 2430.9 80.82 10.262 0.036 Vega
WISE_W4 1911.97 434.81 9.076 0.247 Vega
 

Imaging data

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Spectral Energy Distribution

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Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.690 9.058 9.278
{\rm log}_{10}({\rm SFR}) -1.007 -0.395 0.032
{\rm log}_{10}({\rm sSFR}) -10.133 -9.490 -8.722
{\rm stellar\ age} 2.808 5.992 8.018

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.179 -0.357 -0.017
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.247 -0.650 -0.015

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.322 0.728 1.174
\delta -0.680 -0.189 0.166
\tau_1/\tau_2 0.392 0.817 1.252
Q_{PAH} 0.718 2.593 5.386
U_{min} 3.196 8.442 15.522
{\rm log}_{10}(\gamma_e)\, -3.126 -2.170 -0.856

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.028 -1.000 0.028
{\rm log}_{10}(\tau_{AGN})\, 0.964 1.463 1.928

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.753 -0.136 0.251
0.03-0.10 Gyr -2.157 -0.913 -0.071
0.10-0.32 Gyr -2.864 -1.213 -0.562
0.32-1.06 Gyr -3.010 -1.114 -0.441
1.06-3.43 Gyr -2.517 -1.075 -0.655
3.43-11.14 Gyr -2.253 -1.018 -0.609
11.14-12.38 Gyr -2.181 -0.967 -0.200

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.545 10.628 10.769
{\rm log}_{10}({\rm SFR}) 1.047 1.241 1.564
{\rm log}_{10}({\rm sSFR}) -9.602 -9.381 -9.084
{\rm stellar\ age} 6.373 7.298 10.759

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.957 -0.612 -0.430
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.242 0.106 0.378

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.137 0.198 0.322
\delta -0.893 -0.698 -0.435
\tau_1/\tau_2 0.433 0.875 1.328
Q_{PAH} 1.212 2.128 3.498
U_{min} 2.608 7.671 15.241
{\rm log}_{10}(\gamma_e)\, -3.045 -2.061 -1.355

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.900 -2.700 -1.856
{\rm log}_{10}(\tau_{AGN})\, 1.057 1.518 1.903

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.332 0.206 0.434
0.03-0.10 Gyr 1.192 1.393 1.719
0.10-0.32 Gyr -2.082 -0.038 0.658
0.32-1.06 Gyr -3.058 -0.085 0.407
1.06-3.43 Gyr -1.993 0.168 0.639
3.43-11.14 Gyr -0.134 0.711 0.885
11.14-12.38 Gyr 0.184 0.987 1.848