2025acaj

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Information

Transient

Name: AT2025acaj
Right ascension: 1h44m56.76s
Declination: -23d59m03.13s
Discovery Date: Oct. 29, 2025, 6:31 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.013

Host

Name:
Right ascension: 1h44m56.79s
Declination: -23d59m03.62s
Redshift: None
Photometric Redshift: 0.085
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 6.02
Transient MWEBV processed 0.04
Host match processed 6.24
Host information processed 0.17
Host MWEBV processed 0.04
Global aperture construction processed 0.64
Global aperture photometry processed 4.17
Validate global photometry processed 11.92
Global host SED inference processed 403.68
Local aperture photometry processed 4.2
Validate local photometry processed 0.02
Local host SED inference processed 410.47
 

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) = 1h44m56.76s, -23d59m03.13s
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 16.61 0.13 20.849 0.009 AB
PanSTARRS_r 20.64 0.51 20.613 0.027 AB
PanSTARRS_i 27.47 0.54 20.303 0.021 AB
PanSTARRS_z 25.4 0.91 20.388 0.039 AB
PanSTARRS_y 24.13 2.36 20.444 0.106 AB

Aperture details

RA, DEC (J2000) = 1h44m56.76s, -23d59m03.53s
semi major axis, semi minor axis (arcsec) = 3.52, 2.91
angle (degrees, anti-clockwise from east) = -149.95

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 8.8 2.51 21.538 0.310 AB
GALEX_NUV 10.54 1.87 21.343 0.193 AB
DES_g 33.89 0.21 20.075 0.007 AB
PanSTARRS_g 33.29 0.76 20.094 0.025 AB
PanSTARRS_r 36.51 1.28 19.994 0.038 AB
PanSTARRS_i 51.99 1.32 19.610 0.028 AB
PanSTARRS_z 48.59 2.24 19.684 0.050 AB
PanSTARRS_y 46.99 5.8 19.720 0.134 AB
2MASS_J 94.06 82.11 18.072 0.948 Vega
2MASS_H 89.61 124.86 17.652 1.513 Vega
2MASS_K 131.5 146.39 16.765 1.209 Vega
WISE_W1 19.62 5.86 17.969 0.324 Vega
WISE_W2 9.08 9.68 18.166 1.158 Vega
WISE_W3 72.04 47.51 14.082 0.716 Vega
WISE_W4 -336.33 334.54 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})\, 8.364 8.616 8.782
{\rm log}_{10}({\rm SFR}) -1.413 -0.755 -0.078
{\rm log}_{10}({\rm sSFR}) -10.126 -9.361 -8.560
{\rm stellar\ age} 1.079 4.611 6.592

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.767 -1.357 -0.554
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.682 -1.133 -0.025

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.137 0.428 0.910
\delta -0.607 -0.189 0.132
\tau_1/\tau_2 0.758 1.112 1.489
Q_{PAH} 0.909 2.631 5.073
U_{min} 2.928 8.133 14.845
{\rm log}_{10}(\gamma_e)\, -2.854 -1.643 -0.612

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.187 -0.539 0.029
{\rm log}_{10}(\tau_{AGN})\, 1.118 1.509 1.973

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.426 -1.059 -0.660
0.03-0.10 Gyr -1.517 -0.697 0.054
0.10-0.33 Gyr -1.696 -0.904 -0.332
0.33-1.07 Gyr -2.066 -1.130 -0.743
1.07-3.48 Gyr -2.679 -1.377 -1.002
3.48-11.38 Gyr -3.199 -1.549 -1.122
11.38-12.64 Gyr -3.041 -1.580 -0.963

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.648 8.871 9.042
{\rm log}_{10}({\rm SFR}) -0.757 -0.460 -0.151
{\rm log}_{10}({\rm sSFR}) -9.684 -9.323 -8.950
{\rm stellar\ age} 3.242 5.412 7.018

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.377 -0.779 -0.304
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.718 -0.855 0.216

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.097 0.262 0.511
\delta -0.365 0.062 0.279
\tau_1/\tau_2 0.733 1.128 1.476
Q_{PAH} 0.790 2.111 3.990
U_{min} 2.684 7.643 15.190
{\rm log}_{10}(\gamma_e)\, -2.773 -1.583 -0.626

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.683 -1.544 -0.615
{\rm log}_{10}(\tau_{AGN})\, 1.174 1.539 1.893

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.978 -0.745 -0.527
0.03-0.10 Gyr -0.744 -0.379 -0.029
0.10-0.33 Gyr -0.884 -0.492 -0.158
0.33-1.07 Gyr -1.471 -0.945 -0.597
1.07-3.48 Gyr -1.593 -1.102 -0.831
3.48-11.38 Gyr -1.738 -1.172 -0.866
11.38-12.64 Gyr -1.898 -1.137 -0.592