2025ktj

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Information

Transient

Name: AT2025ktj
Right ascension: 15h20m57.12s
Declination: 47d12m40.64s
Discovery Date: May 19, 2025, 7:51 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.022

Host

Name: 2025ktj
Right ascension: 15h20m56.43s
Declination: 47d12m38.06s
Redshift: 0.074301
Photometric Redshift: 0.065
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 2.29
Transient MWEBV processed 0.1
Host match processed 2.14
Host information processed 0.1
Host MWEBV processed 0.05
Global aperture construction processed 0.6
Global aperture photometry processed 6.72
Validate global photometry processed 16.51
Global host SED inference processed 594.22
Local aperture photometry processed 6.45
Validate local photometry processed 0.03
Local host SED inference processed 419.61
 

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) = 15h20m57.12s, 47d12m40.64s
semi major axis, semi minor axis (arcsec) = 1.42, 1.42
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 6.78 0.23 21.821 0.037 AB
PanSTARRS_g 8.66 0.33 21.556 0.041 AB
SDSS_r 12.64 1.1 21.146 0.094 AB
PanSTARRS_r 14.59 0.39 20.990 0.029 AB
SDSS_i 17.63 1.46 20.784 0.090 AB
PanSTARRS_i 21.55 0.47 20.567 0.024 AB
PanSTARRS_z 25.8 0.87 20.371 0.036 AB
SDSS_z 21.14 3.91 20.587 0.201 AB
DES_z 20.22 0.95 20.635 0.051 AB
PanSTARRS_y 29.81 2.3 20.214 0.084 AB

Aperture details

RA, DEC (J2000) = 15h20m56.43s, 47d12m38.23s
semi major axis, semi minor axis (arcsec) = 11.41, 5.72
angle (degrees, anti-clockwise from east) = -98.07

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 117.53 6.31 18.725 0.058 AB
SDSS_g 572.49 6.59 17.006 0.013 AB
DES_g 593.13 2.11 16.967 0.004 AB
PanSTARRS_g 653.76 1.96 16.861 0.003 AB
SDSS_r 1191.63 9.58 16.210 0.009 AB
PanSTARRS_r 1204.27 2.32 16.198 0.002 AB
SDSS_i 1743.68 12.24 15.796 0.008 AB
PanSTARRS_i 1781.38 2.75 15.773 0.002 AB
PanSTARRS_z 2114.38 4.96 15.587 0.003 AB
SDSS_z 2320.53 24.57 15.486 0.011 AB
DES_z 2286.43 9.26 15.502 0.004 AB
PanSTARRS_y 2701.76 13.13 15.321 0.005 AB
2MASS_J 3267.55 156.99 14.220 0.052 Vega
2MASS_H 4267.53 204.12 13.457 0.052 Vega
2MASS_K 3694.7 325.67 13.143 0.096 Vega
WISE_W1 1634.94 17.07 13.167 0.011 Vega
WISE_W2 995.19 18.43 13.066 0.020 Vega
WISE_W3 1164.64 53.37 11.061 0.050 Vega
WISE_W4 749.78 307.44 10.093 0.445 Vega
 

Imaging data

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Spectral Energy Distribution

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Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.718 8.867 8.997
{\rm log}_{10}({\rm SFR}) -1.713 -1.145 -0.657
{\rm log}_{10}({\rm sSFR}) -10.659 -10.033 -9.484
{\rm stellar\ age} 4.919 6.899 8.443

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.685 -1.183 -0.590
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.493 -0.711 0.077

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.618 1.007 1.471
\delta -0.256 -0.013 0.242
\tau_1/\tau_2 0.712 1.051 1.402
Q_{PAH} 0.928 2.813 5.284
U_{min} 2.993 7.982 14.796
{\rm log}_{10}(\gamma_e)\, -2.685 -1.698 -0.748

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.786 -0.659 -0.076
{\rm log}_{10}(\tau_{AGN})\, 1.057 1.526 1.950

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.622 -1.075 -0.638
0.03-0.10 Gyr -2.023 -1.241 -0.660
0.10-0.33 Gyr -2.328 -1.437 -0.838
0.33-1.07 Gyr -2.418 -1.446 -0.851
1.07-3.51 Gyr -2.000 -1.197 -0.880
3.51-11.50 Gyr -1.524 -1.034 -0.827
11.50-12.77 Gyr -1.720 -1.020 -0.436

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.689 10.770 10.832
{\rm log}_{10}({\rm SFR}) -1.659 -0.675 0.130
{\rm log}_{10}({\rm sSFR}) -12.465 -11.360 -10.595
{\rm stellar\ age} 6.793 7.719 9.759

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.561 -0.437 -0.340
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.098 -0.205 0.247

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.132 0.256 0.389
\delta -0.953 -0.798 -0.455
\tau_1/\tau_2 0.510 0.875 1.256
Q_{PAH} 0.417 1.439 4.049
U_{min} 2.150 6.586 13.835
{\rm log}_{10}(\gamma_e)\, -3.297 -2.207 -1.129

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.359 -3.435 -2.485
{\rm log}_{10}(\tau_{AGN})\, 1.012 1.476 1.898

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.289 -0.468 0.072
0.03-0.10 Gyr -3.040 -0.872 0.151
0.10-0.33 Gyr -2.797 -0.734 0.302
0.33-1.07 Gyr -2.141 -0.443 0.368
1.07-3.51 Gyr -1.009 0.346 0.823
3.51-11.50 Gyr 0.628 0.914 1.072
11.50-12.77 Gyr 0.408 1.018 1.702