2025aacb

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Information

Transient

Name: AT2025aacb
Right ascension: 0h55m28.24s
Declination: -9d09m42.17s
Discovery Date: Sept. 16, 2025, 10:15 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.040

Host

Name: 994452
Right ascension: 0h55m28.03s
Declination: -9d09m42.43s
Redshift: 0.101951
Photometric Redshift:
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 19.16
Transient MWEBV processed 0.05
Host match processed 4.34
Host information processed 0.05
Host MWEBV processed 0.05
Global aperture construction processed 0.68
Global aperture photometry processed 6.82
Validate global photometry processed 18.77
Global host SED inference processed 381.8
Local aperture photometry processed 6.99
Validate local photometry processed 0.02
Local host SED inference processed 574.8
 

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) = 0h55m28.24s, -9d09m42.17s
semi major axis, semi minor axis (arcsec) = 1.07, 1.07
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 31.58 1.08 20.152 0.037 AB
PanSTARRS_y 29.39 1.7 20.229 0.063 AB

Aperture details

RA, DEC (J2000) = 0h55m28.04s, -9d09m41.74s
semi major axis, semi minor axis (arcsec) = 10.49, 5.06
angle (degrees, anti-clockwise from east) = -13.51

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 12.01 0.98 21.201 0.088 AB
GALEX_NUV 24.02 0.92 20.449 0.042 AB
SDSS_u 81.07 7.16 19.128 0.096 AB
SDSS_g 336.88 5.41 17.581 0.017 AB
DES_g 360.43 0.81 17.508 0.002 AB
PanSTARRS_g 375.29 2.01 17.464 0.006 AB
SDSS_r 667.24 7.81 16.839 0.013 AB
PanSTARRS_r 683.64 1.6 16.813 0.003 AB
DES_r 739.43 1.68 16.728 0.002 AB
SDSS_i 1038.25 11.11 16.359 0.012 AB
PanSTARRS_i 1022.21 2.07 16.376 0.002 AB
PanSTARRS_z 1263.63 4.07 16.146 0.003 AB
SDSS_z 1343.72 28.58 16.079 0.023 AB
DES_z 1295.55 6.92 16.119 0.006 AB
PanSTARRS_y 1541.89 11.5 15.930 0.008 AB
2MASS_J 1963.32 174.72 14.773 0.097 Vega
2MASS_H 2323.94 296.96 14.117 0.139 Vega
2MASS_K 2765.27 326.0 13.458 0.128 Vega
WISE_W1 1151.64 24.37 13.548 0.023 Vega
WISE_W2 829.9 32.57 13.263 0.043 Vega
WISE_W3 2726.61 107.55 10.137 0.043 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})\, 8.654 9.001 9.312
{\rm log}_{10}({\rm SFR}) -0.966 -0.419 0.157
{\rm log}_{10}({\rm sSFR}) -10.156 -9.402 -8.639
{\rm stellar\ age} 1.686 5.947 8.275

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.621 -0.919 -0.102
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.359 -0.652 0.097

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.466 0.890 1.473
\delta -0.526 -0.115 0.234
\tau_1/\tau_2 0.454 0.875 1.324
Q_{PAH} 0.695 2.189 4.794
U_{min} 3.056 8.627 15.709
{\rm log}_{10}(\gamma_e)\, -3.013 -1.649 -0.589

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.475 -1.145 -0.063
{\rm log}_{10}(\tau_{AGN})\, 0.980 1.450 1.904

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.825 -0.252 0.264
0.03-0.10 Gyr -2.326 -0.799 0.110
0.10-0.33 Gyr -2.986 -1.169 -0.334
0.33-1.06 Gyr -3.433 -1.243 -0.550
1.06-3.44 Gyr -3.359 -1.229 -0.724
3.44-11.19 Gyr -2.884 -1.100 -0.596
11.19-12.43 Gyr -2.617 -1.020 -0.084

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.756 10.794 10.826
{\rm log}_{10}({\rm SFR}) 0.272 0.436 0.613
{\rm log}_{10}({\rm sSFR}) -10.533 -10.361 -10.179
{\rm stellar\ age} 6.538 7.148 7.994

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.331 -0.185 -0.073
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.331 0.194 0.376

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.212 0.288 0.396
\delta -0.816 -0.609 -0.394
\tau_1/\tau_2 0.777 1.109 1.428
Q_{PAH} 0.969 1.981 3.168
U_{min} 2.180 6.641 13.204
{\rm log}_{10}(\gamma_e)\, -2.410 -1.681 -1.169

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.455 -2.204 -1.534
{\rm log}_{10}(\tau_{AGN})\, 1.125 1.562 1.901

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.436 0.533 0.627
0.03-0.10 Gyr 0.116 0.394 0.644
0.10-0.33 Gyr 0.134 0.394 0.634
0.33-1.06 Gyr 0.219 0.455 0.643
1.06-3.44 Gyr 0.413 0.695 0.901
3.44-11.19 Gyr 0.847 0.970 1.049
11.19-12.43 Gyr 0.645 1.046 1.437