2025zkg

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Information

Transient

Name: AT2025zkg
Right ascension: 3h58m24.44s
Declination: -17d08m18.70s
Discovery Date: Oct. 2, 2025, 3:15 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.027

Host

Name: 888205
Right ascension: 3h58m24.71s
Declination: -17d08m24.93s
Redshift: 0.084255
Photometric Redshift:
 

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 3.66
Cutout download processed 7.39
Global aperture construction processed 0.65
Local aperture photometry processed 4.92
Global aperture photometry processed 5.76
Validate local photometry processed 0.02
Validate global photometry processed 13.56
Host information processed 0.1
Global host SED inference processed 426.66
Local host SED inference processed 427.93
Transient information processed 0.0
Transient MWEBV processed 0.14
Host MWEBV processed 0.07
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) = 3h58m24.44s, -17d08m18.70s
semi major axis, semi minor axis (arcsec) = 1.27, 1.27
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 5.38 0.08 22.074 0.017 AB
PanSTARRS_r 13.24 0.41 21.095 0.034 AB
DES_r 12.32 0.14 21.174 0.012 AB
PanSTARRS_i 17.2 0.41 20.811 0.026 AB
PanSTARRS_z 21.94 0.95 20.547 0.047 AB
DES_z 22.26 0.52 20.531 0.026 AB
PanSTARRS_y 26.43 2.28 20.345 0.094 AB

Aperture details

RA, DEC (J2000) = 3h58m24.69s, -17d08m24.88s
semi major axis, semi minor axis (arcsec) = 8.34, 7.62
angle (degrees, anti-clockwise from east) = -70.67

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 5.76 2.54 21.999 0.479 AB
GALEX_NUV 13.87 3.44 21.045 0.270 AB
DES_g 608.11 0.74 16.940 0.001 AB
PanSTARRS_g 639.65 2.45 16.885 0.004 AB
PanSTARRS_r 1285.94 2.62 16.127 0.002 AB
DES_r 1430.51 1.32 16.011 0.001 AB
PanSTARRS_i 1884.58 2.61 15.712 0.002 AB
PanSTARRS_z 2431.94 6.01 15.435 0.003 AB
DES_z 2621.96 5.25 15.353 0.002 AB
PanSTARRS_y 2922.13 14.17 15.236 0.005 AB
2MASS_J 3629.14 197.93 14.106 0.059 Vega
2MASS_H 4928.5 270.06 13.301 0.059 Vega
2MASS_K 4220.12 340.73 12.999 0.088 Vega
WISE_W1 1762.04 24.96 13.086 0.015 Vega
WISE_W2 1040.28 28.36 13.018 0.030 Vega
WISE_W3 347.43 93.7 12.374 0.293 Vega
WISE_W4 267.88 480.87 11.210 1.949 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})\, 8.885 9.018 9.145
{\rm log}_{10}({\rm SFR}) -2.142 -1.473 -0.893
{\rm log}_{10}({\rm sSFR}) -11.158 -10.511 -9.912
{\rm stellar\ age} 5.977 7.516 10.440

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.409 -0.791 -0.254
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.359 -0.771 -0.186

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.464 0.884 1.419
\delta -0.341 0.008 0.256
\tau_1/\tau_2 0.590 0.933 1.270
Q_{PAH} 1.204 3.194 5.476
U_{min} 2.875 8.122 14.727
{\rm log}_{10}(\gamma_e)\, -2.756 -1.709 -0.648

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.939 -0.240 0.170
{\rm log}_{10}(\tau_{AGN})\, 1.130 1.595 1.919

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.249 -1.515 -0.896
0.03-0.10 Gyr -2.399 -1.548 -0.910
0.10-0.33 Gyr -2.779 -1.686 -1.009
0.33-1.07 Gyr -3.164 -1.681 -0.983
1.07-3.49 Gyr -2.818 -1.346 -0.868
3.49-11.38 Gyr -1.473 -0.902 -0.698
11.38-12.65 Gyr -1.424 -0.716 0.070

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.928 10.984 11.086
{\rm log}_{10}({\rm SFR}) -1.268 -0.343 0.257
{\rm log}_{10}({\rm sSFR}) -12.351 -11.378 -10.712
{\rm stellar\ age} 7.368 8.375 11.732

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.822 -0.610 -0.483
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.575 -0.715 0.113

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.223 0.342 0.495
\delta -0.891 -0.664 -0.342
\tau_1/\tau_2 0.596 1.007 1.396
Q_{PAH} 0.274 0.844 1.897
U_{min} 3.199 8.702 16.465
{\rm log}_{10}(\gamma_e)\, -3.012 -1.970 -1.258

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.510 -3.684 -2.725
{\rm log}_{10}(\tau_{AGN})\, 1.056 1.567 1.925

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.898 -1.094 -0.368
0.03-0.10 Gyr -1.326 -0.265 0.397
0.10-0.33 Gyr -1.981 -0.251 0.480
0.33-1.07 Gyr -2.853 -0.505 0.294
1.07-3.49 Gyr -1.962 -0.121 0.707
3.49-11.38 Gyr -0.204 1.109 1.262
11.38-12.65 Gyr 0.613 1.517 2.209