2025zky

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Information

Transient

Name: AT2025zky
Right ascension: 8h45m39.58s
Declination: 25d00m17.79s
Discovery Date: Oct. 2, 2025, 10:35 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.028

Host

Name: 1722601
Right ascension: 8h45m39.74s
Declination: 25d00m17.50s
Redshift: None
Photometric Redshift: 0.043
 

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 3.71
Cutout download processed 14.68
Global aperture construction processed 0.61
Local aperture photometry processed 5.55
Global aperture photometry processed 5.24
Validate local photometry processed 0.02
Validate global photometry processed 14.61
Host information processed 0.04
Global host SED inference processed 411.84
Local host SED inference processed 519.58
Transient information processed 0.0
Transient MWEBV processed 0.06
Host MWEBV processed 0.05
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) = 8h45m39.58s, 25d00m17.79s
semi major axis, semi minor axis (arcsec) = 2.34, 2.34
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 64.15 2.59 19.382 0.044 AB
SDSS_g 151.78 3.27 18.447 0.023 AB
PanSTARRS_g 142.57 0.64 18.515 0.005 AB
SDSS_r 211.65 3.9 18.086 0.020 AB
PanSTARRS_r 222.58 0.54 18.031 0.003 AB
SDSS_i 280.2 4.63 17.781 0.018 AB
PanSTARRS_i 266.15 0.87 17.837 0.004 AB
PanSTARRS_z 312.81 1.61 17.662 0.006 AB
SDSS_z 306.59 6.78 17.684 0.024 AB
PanSTARRS_y 362.01 4.14 17.503 0.012 AB

Aperture details

RA, DEC (J2000) = 8h45m39.78s, 25d00m17.86s
semi major axis, semi minor axis (arcsec) = 9.83, 7.99
angle (degrees, anti-clockwise from east) = -68.68

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 124.23 9.95 18.664 0.087 AB
GALEX_NUV 161.16 6.62 18.382 0.045 AB
SDSS_u 290.69 7.58 17.741 0.028 AB
SDSS_g 657.24 7.16 16.856 0.012 AB
PanSTARRS_g 643.06 2.32 16.879 0.004 AB
SDSS_r 848.91 8.5 16.578 0.011 AB
PanSTARRS_r 905.46 1.92 16.508 0.002 AB
SDSS_i 1055.9 10.47 16.341 0.011 AB
PanSTARRS_i 1045.74 3.17 16.351 0.003 AB
PanSTARRS_z 1137.69 5.95 16.260 0.006 AB
SDSS_z 1115.6 21.2 16.281 0.021 AB
PanSTARRS_y 1288.07 15.56 16.125 0.013 AB
2MASS_J 1120.48 157.66 15.382 0.153 Vega
2MASS_H 1871.33 234.17 14.352 0.136 Vega
2MASS_K 1229.53 281.32 14.338 0.248 Vega
WISE_W1 709.53 21.99 14.074 0.034 Vega
WISE_W2 477.03 35.63 13.865 0.081 Vega
WISE_W3 1173.92 141.97 11.052 0.131 Vega
WISE_W4 2992.04 877.53 8.590 0.318 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})\, 9.117 9.268 9.417
{\rm log}_{10}({\rm SFR}) -0.686 -0.100 0.483
{\rm log}_{10}({\rm sSFR}) -9.988 -9.371 -8.751
{\rm stellar\ age} 3.276 6.405 8.137

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.633 -0.974 -0.447
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.603 0.165 0.386

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.222 0.649 1.228
\delta -0.536 -0.136 0.147
\tau_1/\tau_2 0.644 1.062 1.448
Q_{PAH} 0.718 2.060 4.086
U_{min} 3.089 9.032 16.505
{\rm log}_{10}(\gamma_e)\, -3.462 -2.135 -0.682

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.139 -2.184 -0.750
{\rm log}_{10}(\tau_{AGN})\, 0.970 1.424 1.865

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.245 -0.778 -0.317
0.03-0.10 Gyr -0.625 0.025 0.635
0.10-0.33 Gyr -1.521 -0.518 0.051
0.33-1.09 Gyr -2.510 -0.882 -0.391
1.09-3.59 Gyr -1.877 -0.789 -0.421
3.59-11.86 Gyr -1.929 -0.760 -0.496
11.86-13.17 Gyr -2.016 -0.724 -0.016

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.510 9.610 9.684
{\rm log}_{10}({\rm SFR}) 0.083 0.314 0.536
{\rm log}_{10}({\rm sSFR}) -9.548 -9.299 -9.000
{\rm stellar\ age} 4.409 5.934 7.084

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.696 -0.464 -0.307
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.120 0.293 0.428

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.091 0.173 0.325
\delta -0.694 -0.317 0.021
\tau_1/\tau_2 0.689 1.017 1.349
Q_{PAH} 0.391 1.126 2.421
U_{min} 2.718 7.074 13.784
{\rm log}_{10}(\gamma_e)\, -3.422 -2.480 -1.692

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.067 -2.136 -1.817
{\rm log}_{10}(\tau_{AGN})\, 0.858 1.169 1.563

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.816 -0.300 -0.106
0.03-0.10 Gyr 0.180 0.440 0.685
0.10-0.33 Gyr -0.156 0.200 0.458
0.33-1.09 Gyr -0.626 -0.235 0.004
1.09-3.59 Gyr -0.629 -0.333 -0.111
3.59-11.86 Gyr -0.716 -0.385 -0.212
11.86-13.17 Gyr -0.917 -0.364 0.036