2025aacd

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Information

Transient

Name: AT2025aacd
Right ascension: 3h23m04.30s
Declination: -28d45m29.72s
Discovery Date: Sept. 17, 2025, 1:37 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.014

Host

Name:
Right ascension: 3h23m04.15s
Declination: -28d45m31.45s
Redshift: None
Photometric Redshift: 0.085
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 7.22
Transient MWEBV processed 0.04
Host match processed 6.49
Host information processed 0.13
Host MWEBV processed 0.04
Global aperture construction processed 0.63
Global aperture photometry processed 6.1
Validate global photometry processed 15.09
Global host SED inference processed 422.05
Local aperture photometry processed 5.77
Validate local photometry processed 0.02
Local host SED inference processed 479.63
 

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) = 3h23m04.30s, -28d45m29.72s
semi major axis, semi minor axis (arcsec) = 1.26, 1.26
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 49.92 0.21 19.654 0.005 AB
PanSTARRS_r 81.28 0.51 19.125 0.007 AB
DES_r 96.5 0.35 18.939 0.004 AB
PanSTARRS_i 113.0 0.56 18.767 0.005 AB
PanSTARRS_z 140.2 0.99 18.533 0.008 AB
DES_z 161.79 1.27 18.378 0.009 AB
PanSTARRS_y 160.9 2.35 18.384 0.016 AB

Aperture details

RA, DEC (J2000) = 3h23m04.15s, -28d45m31.35s
semi major axis, semi minor axis (arcsec) = 9.66, 8.73
angle (degrees, anti-clockwise from east) = -154.34

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 36.13 4.29 20.005 0.129 AB
GALEX_NUV 62.35 3.4 19.413 0.059 AB
DES_g 820.02 0.94 16.615 0.001 AB
PanSTARRS_g 774.37 2.74 16.678 0.004 AB
PanSTARRS_r 1506.66 3.49 15.955 0.003 AB
DES_r 1669.9 1.52 15.843 0.001 AB
PanSTARRS_i 2099.78 3.98 15.595 0.002 AB
PanSTARRS_z 2651.42 7.04 15.341 0.003 AB
DES_z 2868.86 5.53 15.256 0.002 AB
PanSTARRS_y 3034.08 17.01 15.195 0.006 AB
2MASS_J 4198.22 222.95 13.947 0.058 Vega
2MASS_H 4548.13 355.29 13.388 0.085 Vega
2MASS_K 5226.47 468.64 12.767 0.097 Vega
WISE_W1 2115.05 20.43 12.888 0.010 Vega
WISE_W2 1333.77 22.6 12.748 0.018 Vega
WISE_W3 3179.3 66.17 9.970 0.023 Vega
WISE_W4 2787.56 457.42 8.667 0.178 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})\, 9.421 9.599 9.703
{\rm log}_{10}({\rm SFR}) -1.351 -0.658 -0.024
{\rm log}_{10}({\rm sSFR}) -10.954 -10.274 -9.566
{\rm stellar\ age} 2.322 5.789 7.377

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.180 -0.346 -0.026
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.720 -0.869 0.141

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.246 0.701 1.182
\delta -0.609 -0.193 0.153
\tau_1/\tau_2 0.690 1.048 1.389
Q_{PAH} 1.265 3.741 5.724
U_{min} 3.416 9.042 16.369
{\rm log}_{10}(\gamma_e)\, -3.045 -1.914 -0.449

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.318 -1.494 -0.397
{\rm log}_{10}(\tau_{AGN})\, 1.043 1.523 1.983

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.788 -0.978 -0.554
0.03-0.10 Gyr -1.551 -0.625 0.109
0.10-0.33 Gyr -1.028 -0.286 0.337
0.33-1.07 Gyr -1.040 -0.229 0.196
1.07-3.48 Gyr -1.299 -0.346 -0.060
3.48-11.38 Gyr -1.837 -0.423 -0.183
11.38-12.64 Gyr -1.905 -0.447 0.127

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.951 10.995 11.073
{\rm log}_{10}({\rm SFR}) 0.276 0.590 0.929
{\rm log}_{10}({\rm sSFR}) -10.747 -10.408 -10.058
{\rm stellar\ age} 7.442 8.556 11.213

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.482 -0.350 -0.244
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.467 0.096 0.406

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.148 0.217 0.317
\delta -0.718 -0.457 -0.199
\tau_1/\tau_2 0.700 1.096 1.503
Q_{PAH} 1.174 3.222 5.036
U_{min} 2.422 7.620 14.790
{\rm log}_{10}(\gamma_e)\, -2.126 -1.253 -0.500

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.949 -2.735 -1.760
{\rm log}_{10}(\tau_{AGN})\, 1.122 1.614 1.947

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.074 -0.135 0.183
0.03-0.10 Gyr 0.352 0.721 1.084
0.10-0.33 Gyr -0.020 0.512 0.815
0.33-1.07 Gyr -0.653 0.154 0.481
1.07-3.48 Gyr -0.860 0.169 0.627
3.48-11.38 Gyr 0.365 1.117 1.241
11.38-12.64 Gyr 0.978 1.617 2.159