2025zrk

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Information

Transient

Name: AT2025zrk
Right ascension: 8h33m50.59s
Declination: -4d22m05.70s
Discovery Date: Oct. 3, 2025, 2:36 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.032

Host

Name:
Right ascension: 8h33m50.43s
Declination: -4d22m11.54s
Redshift: None
Photometric Redshift: 0.027
 

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 5.87
Cutout download processed 17.74
Global aperture construction processed 0.64
Local aperture photometry processed 5.3
Global aperture photometry processed 5.01
Validate local photometry processed 0.02
Validate global photometry processed 15.17
Host information processed 0.12
Global host SED inference processed 395.73
Local host SED inference processed 439.35
Transient information processed 0.0
Transient MWEBV processed 0.17
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) = 8h33m50.59s, -4d22m05.70s
semi major axis, semi minor axis (arcsec) = 3.68, 3.68
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 21.63 3.49 20.562 0.175 AB
SDSS_g 54.77 2.17 19.554 0.043 AB
PanSTARRS_g 58.67 0.8 19.479 0.015 AB
SDSS_r 72.37 2.95 19.251 0.044 AB
PanSTARRS_r 89.02 1.07 19.026 0.013 AB
SDSS_i 90.92 4.12 19.003 0.049 AB
PanSTARRS_i 97.72 1.26 18.925 0.014 AB
PanSTARRS_z 108.95 2.58 18.807 0.026 AB
SDSS_z 110.69 14.03 18.790 0.138 AB
PanSTARRS_y 108.19 7.79 18.815 0.078 AB
2MASS_J 23.33 93.07 19.585 4.332 Vega
2MASS_H 341.99 137.76 16.197 0.437 Vega
2MASS_K 294.57 167.84 15.889 0.619 Vega

Aperture details

RA, DEC (J2000) = 8h33m50.42s, -4d22m11.17s
semi major axis, semi minor axis (arcsec) = 11.64, 6.99
angle (degrees, anti-clockwise from east) = -17.29

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 54.91 4.23 19.551 0.084 AB
GALEX_NUV 82.8 1.46 19.105 0.019 AB
SDSS_u 206.24 8.87 18.114 0.047 AB
SDSS_g 582.73 6.72 16.986 0.013 AB
PanSTARRS_g 598.14 1.98 16.958 0.004 AB
SDSS_r 819.14 8.81 16.617 0.012 AB
PanSTARRS_r 856.92 2.63 16.568 0.003 AB
SDSS_i 999.86 11.46 16.400 0.012 AB
PanSTARRS_i 1020.96 3.11 16.377 0.003 AB
PanSTARRS_z 1114.16 6.32 16.283 0.006 AB
SDSS_z 1302.15 34.89 16.113 0.029 AB
PanSTARRS_y 1260.47 18.68 16.149 0.016 AB
2MASS_J 1045.44 238.76 15.457 0.248 Vega
2MASS_H 1536.26 351.66 14.566 0.249 Vega
2MASS_K 1080.8 430.01 14.478 0.432 Vega
WISE_W1 556.95 26.96 14.336 0.053 Vega
WISE_W2 302.26 26.39 14.360 0.095 Vega
WISE_W3 709.6 108.12 11.598 0.165 Vega
WISE_W4 924.81 660.46 9.865 0.775 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})\, 8.215 8.373 8.508
{\rm log}_{10}({\rm SFR}) -1.953 -1.428 -1.023
{\rm log}_{10}({\rm sSFR}) -10.394 -9.822 -9.286
{\rm stellar\ age} 4.639 6.656 8.122

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.551 -1.102 -0.698
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.901 -1.716 -1.328

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.137 0.385 0.680
\delta -0.647 -0.231 0.167
\tau_1/\tau_2 0.827 1.170 1.487
Q_{PAH} 0.690 2.418 5.145
U_{min} 2.765 7.915 14.930
{\rm log}_{10}(\gamma_e)\, -2.999 -1.974 -0.753

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.220 -1.186 -0.397
{\rm log}_{10}(\tau_{AGN})\, 1.046 1.455 1.985

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.902 -1.524 -1.223
0.03-0.10 Gyr -2.057 -1.405 -0.948
0.10-0.33 Gyr -2.185 -1.537 -1.073
0.33-1.10 Gyr -2.151 -1.612 -1.277
1.10-3.64 Gyr -2.012 -1.597 -1.368
3.64-12.05 Gyr -2.005 -1.581 -1.360
12.05-13.39 Gyr -2.204 -1.562 -1.049

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.275 9.348 9.422
{\rm log}_{10}({\rm SFR}) -1.044 -0.697 -0.416
{\rm log}_{10}({\rm sSFR}) -10.396 -10.053 -9.759
{\rm stellar\ age} 5.742 6.799 7.716

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.177 -0.937 -0.765
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.832 0.035 0.320

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.103 0.178 0.294
\delta -0.760 -0.464 -0.120
\tau_1/\tau_2 0.721 1.033 1.354
Q_{PAH} 0.265 0.831 2.308
U_{min} 2.937 7.562 14.137
{\rm log}_{10}(\gamma_e)\, -3.061 -1.948 -1.391

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.488 -3.714 -2.855
{\rm log}_{10}(\tau_{AGN})\, 1.064 1.601 1.958

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.398 -1.086 -0.879
0.03-0.10 Gyr -1.015 -0.598 -0.284
0.10-0.33 Gyr -0.626 -0.372 -0.136
0.33-1.10 Gyr -0.846 -0.567 -0.358
1.10-3.64 Gyr -0.868 -0.615 -0.417
3.64-12.05 Gyr -0.757 -0.572 -0.441
12.05-13.39 Gyr -0.962 -0.537 -0.163