2025zlr

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Information

Transient

Name: AT2025zlr
Right ascension: 21h23m55.75s
Declination: 17d55m56.19s
Discovery Date: Sept. 30, 2025, 5:12 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.052

Host

Name:
Right ascension: 21h23m55.35s
Declination: 17d56m01.38s
Redshift: None
Photometric Redshift: 0.037
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 3.98
Transient MWEBV processed 0.06
Host match processed 6.21
Host information processed 0.13
Host MWEBV processed 0.08
Global aperture construction processed 0.64
Global aperture photometry processed 4.61
Validate global photometry processed 12.75
Global host SED inference processed 423.75
Local aperture photometry processed 4.4
Validate local photometry processed 0.02
Local host SED inference processed 531.93
 

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) = 21h23m55.75s, 17d55m56.19s
semi major axis, semi minor axis (arcsec) = 2.7, 2.7
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 127.37 0.63 18.637 0.005 AB
PanSTARRS_r 141.98 0.75 18.519 0.006 AB
PanSTARRS_i 169.61 0.86 18.326 0.006 AB
PanSTARRS_z 154.87 1.92 18.425 0.013 AB
SDSS_z 186.31 10.38 18.224 0.060 AB
PanSTARRS_y 170.96 4.98 18.318 0.032 AB

Aperture details

RA, DEC (J2000) = 21h23m55.38s, 17d56m00.35s
semi major axis, semi minor axis (arcsec) = 16.06, 10.22
angle (degrees, anti-clockwise from east) = -21.85

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 260.48 8.92 17.861 0.037 AB
PanSTARRS_g 1351.16 2.92 16.073 0.002 AB
PanSTARRS_r 1726.88 3.48 15.807 0.002 AB
PanSTARRS_i 2118.3 4.02 15.585 0.002 AB
PanSTARRS_z 2135.16 9.13 15.576 0.005 AB
PanSTARRS_y 2392.03 24.31 15.453 0.011 AB
2MASS_J 2838.13 320.03 14.373 0.122 Vega
2MASS_H 2276.24 495.15 14.139 0.236 Vega
2MASS_K 2807.87 497.15 13.441 0.192 Vega
WISE_W1 1367.97 29.17 13.361 0.023 Vega
WISE_W3 4123.34 146.46 9.688 0.039 Vega
WISE_W4 6994.55 954.54 7.668 0.148 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})\, 8.370 8.642 8.814
{\rm log}_{10}({\rm SFR}) -1.272 -0.584 0.234
{\rm log}_{10}({\rm sSFR}) -10.029 -9.205 -8.204
{\rm stellar\ age} 0.323 4.290 6.730

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.826 -1.532 -1.053
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.562 -1.112 -0.144

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.079 0.349 0.749
\delta -0.664 -0.175 0.240
\tau_1/\tau_2 0.626 0.994 1.369
Q_{PAH} 0.414 1.596 3.789
U_{min} 3.028 8.617 16.588
{\rm log}_{10}(\gamma_e)\, -3.268 -1.904 -0.931

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.794 -1.575 -0.426
{\rm log}_{10}(\tau_{AGN})\, 1.032 1.422 1.898

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.632 -1.190 -0.783
0.03-0.10 Gyr -1.266 -0.474 0.392
0.10-0.33 Gyr -1.717 -0.769 -0.201
0.33-1.09 Gyr -3.329 -1.192 -0.742
1.09-3.61 Gyr -4.239 -1.420 -0.998
3.61-11.93 Gyr -4.787 -1.662 -1.124
11.93-13.26 Gyr -4.714 -1.692 -1.005

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.475 9.801 9.984
{\rm log}_{10}({\rm SFR}) -0.232 0.165 0.807
{\rm log}_{10}({\rm sSFR}) -10.156 -9.700 -8.775
{\rm stellar\ age} 1.302 5.696 7.451

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.347 -0.950 -0.565
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.796 -1.507 -0.098

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.150 0.270 0.448
\delta -0.508 0.078 0.308
\tau_1/\tau_2 0.561 0.953 1.338
Q_{PAH} 0.683 1.572 2.930
U_{min} 2.808 7.799 15.026
{\rm log}_{10}(\gamma_e)\, -3.417 -2.656 -1.907

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.286 -3.064 -1.687
{\rm log}_{10}(\tau_{AGN})\, 0.984 1.412 1.867

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.434 -0.240 0.114
0.03-0.10 Gyr -0.333 0.250 0.960
0.10-0.33 Gyr -0.384 0.235 0.851
0.33-1.09 Gyr -0.983 -0.047 0.327
1.09-3.61 Gyr -1.878 -0.215 0.136
3.61-11.93 Gyr -2.228 -0.268 0.087
11.93-13.26 Gyr -2.255 -0.271 0.318