2025zhk

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Information

Transient

Name: AT2025zhk
Right ascension: 18h55m23.55s
Declination: 50d44m20.82s
Discovery Date: Sept. 25, 2025, 4:23 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.042

Host

Name:
Right ascension: 18h55m23.37s
Declination: 50d44m17.35s
Redshift: None
Photometric Redshift: 0.140
 

Processing Status: blocked

Task Name Status Time taken (s) Warning Flag
Cutout download processed 4.57
Transient MWEBV processed 0.03
Host match processed 4.8
Host information processed 0.13
Host MWEBV processed 0.07
Global aperture construction processed 0.64
Global aperture photometry processed 4.96
Validate global photometry processed 12.28
Global host SED inference processed 408.83
Local aperture photometry processed 4.89
Validate local photometry no valid phot 0.02
Local host SED inference not processed None
 

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) = 18h55m23.55s, 50d44m20.82s
semi major axis, semi minor axis (arcsec) = 0.81, 0.81
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys

Data not available


Aperture details

RA, DEC (J2000) = 18h55m23.36s, 50d44m17.48s
semi major axis, semi minor axis (arcsec) = 9.54, 6.49
angle (degrees, anti-clockwise from east) = -125.98

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_g 157.18 0.8 18.409 0.006 AB
PanSTARRS_g 172.05 1.73 18.311 0.011 AB
PanSTARRS_r 259.42 2.35 17.865 0.010 AB
PanSTARRS_i 344.67 2.21 17.556 0.007 AB
PanSTARRS_z 369.77 4.73 17.480 0.014 AB
DES_z 383.48 5.56 17.441 0.016 AB
PanSTARRS_y 415.77 14.5 17.353 0.038 AB
2MASS_J 673.02 179.62 15.935 0.290 Vega
2MASS_H 671.97 239.72 15.464 0.387 Vega
2MASS_K 1008.97 355.14 14.553 0.382 Vega
WISE_W1 227.18 30.94 15.310 0.148 Vega
WISE_W2 164.61 24.18 15.020 0.159 Vega
WISE_W3 466.73 54.23 12.053 0.126 Vega
WISE_W4 286.01 277.42 11.139 1.053 Vega
 

Imaging data

Click the image to load the interactive plot.


 

Spectral Energy Distribution

 

Host SED inference


Local parameter details

Documentation

Data not available


Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.113 10.224 10.333
{\rm log}_{10}({\rm SFR}) -0.237 0.259 0.652
{\rm log}_{10}({\rm sSFR}) -10.439 -9.975 -9.537
{\rm stellar\ age} 2.200 4.470 6.036

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.082 -0.725 -0.467
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.642 -0.109 0.280

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.112 0.218 0.353
\delta -0.895 -0.659 -0.226
\tau_1/\tau_2 0.690 1.084 1.427
Q_{PAH} 0.444 1.272 2.853
U_{min} 2.391 7.046 13.467
{\rm log}_{10}(\gamma_e)\, -3.106 -2.292 -1.145

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.081 -2.688 -1.696
{\rm log}_{10}(\tau_{AGN})\, 0.997 1.442 1.859

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.100 0.191 0.387
0.03-0.10 Gyr -0.494 0.272 0.745
0.10-0.32 Gyr -0.166 0.637 1.004
0.32-1.04 Gyr 0.395 0.784 1.061
1.04-3.34 Gyr 0.010 0.426 0.704
3.34-10.78 Gyr -0.799 0.142 0.440
10.78-11.97 Gyr -1.080 0.083 0.625