2025zhc

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Information

Transient

Name: AT2025zhc
Right ascension: 7h46m03.91s
Declination: 44d45m40.49s
Discovery Date: Oct. 1, 2025, 4:38 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.035

Host

Name:
Right ascension: 7h46m04.02s
Declination: 44d45m38.55s
Redshift: None
Photometric Redshift: 0.066
 

Processing Status

Cutout download
 Cutout download
processed
 status
Transient information
Transient information
processed
 status
Transient MWEBV
Transient MWEBV
processed
 status
Host match
 Host match
processed
 status
Host information
Host information
processed
 status
Local aperture photometry
 Local aperture photometry
processed
 status
Validate local photometry
 Validate local photometry
processed
 status
Local host SED inference
Local host SED inference
processed
 status
Host MWEBV
Host MWEBV
processed
 status
Global host SED inference
Global host SED inference
processed
 status
Validate global photometry
Validate global photometr...
processed
 status
Global aperture construction
 Global aperture construct...
processed
 status
Global aperture photometry
 Global aperture photometr...
processed
 status
Task Name Status Time taken (s) Warning Flag
Host match processed 4.5
Cutout download processed 16.97
Global aperture construction processed 0.64
Local aperture photometry processed 4.86
Global aperture photometry processed 5.13
Validate local photometry processed 0.02
Validate global photometry processed 14.2
Host information processed 0.13
Global host SED inference processed 485.76
Local host SED inference processed 455.21
Transient information processed 0.0
Transient MWEBV processed 0.06
Host MWEBV processed 0.04
Processing status completed N/A N/A
 

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) = 7h46m03.91s, 44d45m40.49s
semi major axis, semi minor axis (arcsec) = 1.59, 1.59
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 7.37 1.38 21.732 0.204 AB
SDSS_g 16.67 1.14 20.845 0.074 AB
PanSTARRS_g 20.44 0.41 20.624 0.022 AB
SDSS_r 23.44 1.52 20.475 0.070 AB
PanSTARRS_r 31.62 0.53 20.150 0.018 AB
SDSS_i 30.61 1.93 20.185 0.069 AB
PanSTARRS_i 37.1 0.43 19.977 0.013 AB
PanSTARRS_z 40.02 1.06 19.894 0.029 AB
SDSS_z 53.21 5.75 19.585 0.117 AB
PanSTARRS_y 36.26 2.71 20.001 0.081 AB

Aperture details

RA, DEC (J2000) = 7h46m04.01s, 44d45m38.70s
semi major axis, semi minor axis (arcsec) = 5.32, 3.11
angle (degrees, anti-clockwise from east) = -35.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 9.24 2.17 21.486 0.255 AB
GALEX_NUV 14.21 0.64 21.018 0.049 AB
SDSS_u 32.3 3.5 20.127 0.118 AB
SDSS_g 70.33 2.47 19.282 0.038 AB
PanSTARRS_g 73.12 1.04 19.240 0.015 AB
SDSS_r 102.96 3.47 18.868 0.037 AB
PanSTARRS_r 112.9 1.34 18.768 0.013 AB
SDSS_i 135.98 4.52 18.566 0.036 AB
PanSTARRS_i 136.67 1.07 18.561 0.009 AB
PanSTARRS_z 149.37 2.66 18.464 0.019 AB
SDSS_z 201.3 14.41 18.140 0.078 AB
PanSTARRS_y 155.56 6.79 18.420 0.047 AB
2MASS_J 244.38 108.25 17.035 0.481 Vega
2MASS_H 334.69 161.71 16.221 0.525 Vega
2MASS_K 180.6 175.48 16.420 1.055 Vega
WISE_W1 63.39 9.39 16.696 0.161 Vega
WISE_W2 37.07 13.76 16.638 0.403 Vega
WISE_W3 61.29 54.95 14.258 0.973 Vega
WISE_W4 -235.33 352.79 Vega
 

Imaging data

 

Spectral Energy Distribution

 
 
 
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.586 8.753 8.872
{\rm log}_{10}({\rm SFR}) -1.835 -1.039 -0.441
{\rm log}_{10}({\rm sSFR}) -10.636 -9.823 -9.131
{\rm stellar\ age} 3.613 6.361 7.822

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.661 -1.225 -0.638
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.754 -1.173 -0.202

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.143 0.455 0.918
\delta -0.544 -0.134 0.229
\tau_1/\tau_2 0.689 1.056 1.414
Q_{PAH} 1.297 3.394 5.661
U_{min} 3.078 8.526 15.938
{\rm log}_{10}(\gamma_e)\, -2.934 -1.915 -0.851

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.865 -0.507 0.058
{\rm log}_{10}(\tau_{AGN})\, 1.002 1.535 1.984

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.140 -1.555 -0.994
0.03-0.10 Gyr -1.890 -0.956 -0.304
0.10-0.33 Gyr -1.943 -1.073 -0.435
0.33-1.08 Gyr -2.164 -1.308 -0.863
1.08-3.53 Gyr -2.076 -1.292 -0.998
3.53-11.60 Gyr -1.944 -1.226 -0.976
11.60-12.88 Gyr -2.148 -1.243 -0.653

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.240 9.339 9.466
{\rm log}_{10}({\rm SFR}) -0.718 -0.357 -0.017
{\rm log}_{10}({\rm sSFR}) -10.042 -9.682 -9.364
{\rm stellar\ age} 6.176 7.313 9.861

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.391 -0.974 -0.613
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.246 0.179 0.410

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.071 0.190 0.376
\delta -0.725 -0.307 0.063
\tau_1/\tau_2 0.592 1.010 1.423
Q_{PAH} 0.660 1.990 4.077
U_{min} 2.712 7.999 15.998
{\rm log}_{10}(\gamma_e)\, -2.653 -1.622 -0.680

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.343 -1.317 -0.870
{\rm log}_{10}(\tau_{AGN})\, 1.290 1.638 1.929

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.750 -1.426 -0.955
0.03-0.10 Gyr -0.611 -0.210 0.140
0.10-0.33 Gyr -1.408 -0.529 -0.200
0.33-1.08 Gyr -2.113 -0.962 -0.603
1.08-3.53 Gyr -2.105 -0.901 -0.590
3.53-11.60 Gyr -0.997 -0.583 -0.413
11.60-12.88 Gyr -0.980 -0.392 0.356