2025koy

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Information

Transient

Name: AT2025koy
Right ascension: 20h39m33.02s
Declination: -17d36m24.94s
Discovery Date: May 15, 2025, 10:24 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.047

Host

Name: 2025koy
Right ascension: 20h39m32.96s
Declination: -17d36m24.30s
Redshift: None
Photometric Redshift: 0.115
 

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
no valid phot
 status
Local host SED inference
Local host SED inference
not 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 3.91
Cutout download processed 15.13
Global aperture construction processed 0.66
Local aperture photometry processed 4.26
Global aperture photometry processed 4.56
Validate local photometry no valid phot 0.02
Validate global photometry processed 11.94
Host information processed 0.09
Global host SED inference processed 420.68
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.11
Host MWEBV processed 0.12
Processing status blocked 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) = 20h39m33.02s, -17d36m24.94s
semi major axis, semi minor axis (arcsec) = 0.96, 0.96
angle (degrees, anti-clockwise from east) = 0.0

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

Aperture details

RA, DEC (J2000) = 20h39m32.94s, -17d36m24.24s
semi major axis, semi minor axis (arcsec) = 9.78, 7.27
angle (degrees, anti-clockwise from east) = -73.43

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 20.85 2.92 20.602 0.152 AB
GALEX_NUV 17.41 2.32 20.798 0.145 AB
PanSTARRS_g 212.68 2.16 18.081 0.011 AB
PanSTARRS_r 357.84 2.33 17.516 0.007 AB
PanSTARRS_i 505.47 1.89 17.141 0.004 AB
PanSTARRS_z 588.19 5.97 16.976 0.011 AB
PanSTARRS_y 623.76 14.0 16.912 0.024 AB
2MASS_J 926.23 233.37 15.588 0.274 Vega
2MASS_H 1073.19 339.75 14.956 0.344 Vega
2MASS_K 927.79 441.52 14.644 0.517 Vega
WISE_W1 372.84 18.96 14.772 0.055 Vega
WISE_W2 245.76 23.96 14.585 0.106 Vega
WISE_W3 479.13 124.35 12.025 0.282 Vega
WISE_W4 -588.7 550.24 Vega
 

Imaging data

 

Spectral Energy Distribution

 
 
 
 

Host SED inference


Local parameter details

Documentation

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.394 10.467 10.538
{\rm log}_{10}({\rm SFR}) -0.502 -0.227 0.061
{\rm log}_{10}({\rm sSFR}) -10.964 -10.669 -10.409
{\rm stellar\ age} 5.745 6.803 7.840

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.051 -0.827 -0.650
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.484 -0.047 0.336

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.060 0.123 0.221
\delta -0.591 -0.168 0.187
\tau_1/\tau_2 0.610 0.963 1.354
Q_{PAH} 0.897 2.285 4.325
U_{min} 2.416 7.540 14.867
{\rm log}_{10}(\gamma_e)\, -2.692 -1.705 -0.775

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.648 -2.158 -1.460
{\rm log}_{10}(\tau_{AGN})\, 1.074 1.478 1.895

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.421 -0.174 0.028
0.03-0.10 Gyr -0.757 -0.272 0.108
0.10-0.32 Gyr -0.809 -0.202 0.146
0.32-1.05 Gyr -0.524 0.047 0.377
1.05-3.41 Gyr -0.020 0.509 0.758
3.41-11.05 Gyr 0.363 0.630 0.770
11.05-12.28 Gyr -0.008 0.596 1.112