2025aggb

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Information

Transient

Name: AT2025aggb
Right ascension: 23h10m44.99s
Declination: 21d06m11.72s
Discovery Date: Dec. 7, 2025, 8:38 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.206

Host

Name:
Right ascension: 23h10m44.94s
Declination: 21d06m15.81s
Redshift: None
Photometric Redshift: 0.074
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 18.41
Transient MWEBV processed 0.04
Host match processed 7.26
Host information processed 0.16
Host MWEBV processed 0.07
Global aperture construction processed 2.71
Global aperture photometry processed 6.21
Validate global photometry processed 17.41
Global host SED inference processed 1655.94
Local aperture photometry processed 6.07
Validate local photometry processed 0.03
Local host SED inference processed 515.11
 

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) = 23h10m44.99s, 21d06m11.72s
semi major axis, semi minor axis (arcsec) = 1.42, 1.42
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 2.54 0.09 22.886 0.038 AB
PanSTARRS_g 1.73 0.33 23.305 0.205 AB
SDSS_r 3.16 0.92 22.649 0.316 AB
PanSTARRS_r 2.14 0.38 23.076 0.195 AB
DES_r 3.13 0.15 22.660 0.052 AB
SDSS_i 1.67 1.34 23.344 0.875 AB
PanSTARRS_i 4.12 0.53 22.363 0.139 AB
PanSTARRS_z 4.51 1.07 22.264 0.257 AB
SDSS_z 12.93 4.85 21.121 0.407 AB
DES_z 4.53 0.67 22.259 0.160 AB
PanSTARRS_y 1.65 2.22 23.359 1.464 AB

Aperture details

RA, DEC (J2000) = 23h10m44.93s, 21d06m16.36s
semi major axis, semi minor axis (arcsec) = 7.06, 4.86
angle (degrees, anti-clockwise from east) = -26.24

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 2.56 1.17 22.877 0.495 AB
GALEX_NUV 3.68 0.49 22.487 0.145 AB
SDSS_u 45.14 5.33 19.764 0.128 AB
SDSS_g 30.07 2.61 20.205 0.094 AB
DES_g 38.58 0.36 19.934 0.010 AB
PanSTARRS_g 37.97 1.34 19.952 0.038 AB
SDSS_r 51.32 3.76 19.624 0.079 AB
PanSTARRS_r 59.01 1.56 19.473 0.029 AB
DES_r 65.01 0.65 19.368 0.011 AB
SDSS_i 84.52 5.87 19.083 0.075 AB
PanSTARRS_z 123.07 4.34 18.675 0.038 AB
SDSS_z 142.0 19.83 18.519 0.152 AB
PanSTARRS_y 148.68 9.03 18.469 0.066 AB
2MASS_J 242.63 146.59 17.043 0.656 Vega
2MASS_H 101.26 207.59 17.519 2.226 Vega
2MASS_K -160.86 282.1 Vega
WISE_W1 55.29 12.58 16.844 0.247 Vega
WISE_W2 28.77 16.75 16.914 0.632 Vega
WISE_W3 27.18 83.96 15.140 3.353 Vega
WISE_W4 823.98 521.59 9.990 0.687 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})\, 7.251 7.627 7.974
{\rm log}_{10}({\rm SFR}) -1.528 -1.124 -0.821
{\rm log}_{10}({\rm sSFR}) -9.431 -8.724 -8.047
{\rm stellar\ age} 0.268 3.871 6.510

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.682 -0.197 0.061
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.103 -0.762 -0.364

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.424 0.694 1.032
\delta -0.094 0.200 0.347
\tau_1/\tau_2 0.730 1.124 1.552
Q_{PAH} 1.066 2.894 5.442
U_{min} 2.788 7.676 14.909
{\rm log}_{10}(\gamma_e)\, -2.945 -1.919 -0.768

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -0.548 0.057 0.299
{\rm log}_{10}(\tau_{AGN})\, 1.013 1.462 1.827

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.464 -1.168 -0.862
0.03-0.10 Gyr -1.692 -1.167 -0.757
0.10-0.33 Gyr -2.845 -1.759 -1.267
0.33-1.07 Gyr -4.035 -2.197 -1.746
1.07-3.51 Gyr -4.827 -2.555 -1.958
3.51-11.50 Gyr -5.088 -2.671 -1.958
11.50-12.78 Gyr -4.915 -2.670 -1.821

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.621 9.141 9.466
{\rm log}_{10}({\rm SFR}) 0.232 0.627 0.930
{\rm log}_{10}({\rm sSFR}) -9.139 -8.413 -7.912
{\rm stellar\ age} 0.065 5.527 9.497

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.056 -0.367 -0.131
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.564 -0.006 0.252

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.263 0.518 0.799
\delta -0.509 -0.212 -0.010
\tau_1/\tau_2 0.573 1.173 1.678
Q_{PAH} 0.301 0.960 2.186
U_{min} 3.084 9.163 17.071
{\rm log}_{10}(\gamma_e)\, -3.216 -2.157 -1.166

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.457 -2.017 -1.167
{\rm log}_{10}(\tau_{AGN})\, 1.321 1.686 1.948

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.215 -1.007 -0.349
0.03-0.10 Gyr 0.379 0.786 1.085
0.10-0.33 Gyr -3.863 -3.077 -1.810
0.33-1.07 Gyr -7.752 -5.953 -2.514
1.07-3.51 Gyr -7.933 -3.775 -1.315
3.51-11.50 Gyr -6.986 -1.783 -0.533
11.50-12.78 Gyr -6.976 -1.146 0.263