2025zzk

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Information

Transient

Name: AT2025zzk
Right ascension: 2h27m19.09s
Declination: -26d05m27.15s
Discovery Date: Aug. 27, 2025, 2:05 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.009

Host

Name:
Right ascension: 2h27m19.07s
Declination: -26d05m27.22s
Redshift: None
Photometric Redshift: 0.096
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 6.77
Transient MWEBV processed 0.04
Host match processed 5.78
Host information processed 0.12
Host MWEBV processed 0.05
Global aperture construction processed 2.7
Global aperture photometry processed 5.73
Validate global photometry processed 14.74
Global host SED inference processed 468.32
Local aperture photometry processed 5.71
Validate local photometry processed 0.02
Local host SED inference processed 583.98
 

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) = 2h27m19.09s, -26d05m27.15s
semi major axis, semi minor axis (arcsec) = 1.12, 1.12
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_r 7.68 0.15 21.686 0.022 AB
PanSTARRS_i 6.31 0.36 21.901 0.062 AB
PanSTARRS_z 6.07 0.81 21.942 0.144 AB
DES_z 9.12 0.51 21.500 0.061 AB
PanSTARRS_y 5.45 1.95 22.059 0.389 AB

Aperture details

RA, DEC (J2000) = 2h27m19.06s, -26d05m26.80s
semi major axis, semi minor axis (arcsec) = 2.79, 2.29
angle (degrees, anti-clockwise from east) = -150.87

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 1.19 0.76 23.712 0.690 AB
GALEX_NUV 3.42 0.99 22.565 0.314 AB
DES_g 9.99 0.18 21.401 0.019 AB
PanSTARRS_g 6.64 0.68 21.845 0.111 AB
PanSTARRS_r 11.94 0.85 21.207 0.078 AB
DES_r 13.56 0.24 21.069 0.019 AB
PanSTARRS_i 13.88 0.78 21.044 0.061 AB
PanSTARRS_z 16.63 1.73 20.848 0.113 AB
DES_z 16.06 0.82 20.886 0.056 AB
PanSTARRS_y 2.58 4.16 22.873 1.753 AB
2MASS_J -39.67 102.95 Vega
2MASS_H -219.56 132.82 Vega
2MASS_K -143.71 170.59 Vega
WISE_W1 1.59 5.93 20.700 4.058 Vega
WISE_W2 -7.39 10.24 Vega
WISE_W3 -8.8 40.28 Vega
WISE_W4 463.84 306.82 10.614 0.718 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})\, 7.741 8.032 8.324
{\rm log}_{10}({\rm SFR}) -1.445 -1.006 -0.506
{\rm log}_{10}({\rm sSFR}) -9.647 -9.048 -8.352
{\rm stellar\ age} 0.314 2.537 5.680

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.339 -0.491 -0.029
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.519 -0.691 0.091

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.287 0.529 1.087
\delta -0.611 -0.163 0.208
\tau_1/\tau_2 0.644 1.059 1.460
Q_{PAH} 1.203 3.227 5.454
U_{min} 3.249 8.330 15.953
{\rm log}_{10}(\gamma_e)\, -2.723 -1.619 -0.623

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.163 -0.064 0.311
{\rm log}_{10}(\tau_{AGN})\, 0.967 1.385 1.838

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.410 -1.014 -0.575
0.03-0.10 Gyr -1.730 -1.069 -0.475
0.10-0.33 Gyr -1.873 -1.138 -0.660
0.33-1.06 Gyr -3.014 -1.503 -1.047
1.06-3.45 Gyr -4.417 -2.221 -1.499
3.45-11.25 Gyr -5.139 -2.503 -1.681
11.25-12.50 Gyr -4.960 -2.510 -1.606

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.424 8.657 8.820
{\rm log}_{10}({\rm SFR}) -1.157 -0.476 0.315
{\rm log}_{10}({\rm sSFR}) -9.824 -9.128 -8.164
{\rm stellar\ age} 0.324 4.224 6.819

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.747 -1.249 -0.443
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.640 -0.574 0.274

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.240 0.926 1.664
\delta 0.007 0.229 0.352
\tau_1/\tau_2 0.710 1.129 1.497
Q_{PAH} 0.989 2.772 4.846
U_{min} 3.458 10.144 18.040
{\rm log}_{10}(\gamma_e)\, -2.908 -1.791 -0.841

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.043 -0.751 -0.071
{\rm log}_{10}(\tau_{AGN})\, 1.074 1.438 1.780

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.781 -1.351 -0.663
0.03-0.10 Gyr -1.108 -0.367 0.464
0.10-0.33 Gyr -1.902 -0.765 -0.049
0.33-1.06 Gyr -3.300 -1.391 -0.804
1.06-3.45 Gyr -4.236 -1.588 -1.096
3.45-11.25 Gyr -4.663 -1.682 -1.166
11.25-12.50 Gyr -4.920 -1.703 -0.825