2025ktn

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Information

Transient

Name: AT2025ktn
Right ascension: 17h06m10.24s
Declination: 33d36m15.63s
Discovery Date: May 19, 2025, 10:23 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.023

Host

Name: 2025ktn
Right ascension: 17h06m09.99s
Declination: 33d36m14.89s
Redshift: 0.082621
Photometric Redshift: 0.080
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 15.88
Transient MWEBV processed 0.05
Host match processed 3.41
Host information processed 0.09
Host MWEBV processed 0.1
Global aperture construction processed 0.65
Global aperture photometry processed 5.98
Validate global photometry processed 17.09
Global host SED inference processed 458.03
Local aperture photometry processed 6.09
Validate local photometry processed 0.02
Local host SED inference processed 480.84
 

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) = 17h06m10.24s, 33d36m15.63s
semi major axis, semi minor axis (arcsec) = 1.29, 1.29
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 28.19 0.46 20.275 0.018 AB
PanSTARRS_r 63.52 0.38 19.393 0.006 AB
SDSS_i 83.74 2.5 19.093 0.032 AB
PanSTARRS_i 93.35 0.4 18.975 0.005 AB
PanSTARRS_z 115.53 0.81 18.743 0.008 AB
DES_z 118.05 1.78 18.720 0.016 AB
PanSTARRS_y 140.2 2.29 18.533 0.018 AB

Aperture details

RA, DEC (J2000) = 17h06m09.93s, 33d36m15.24s
semi major axis, semi minor axis (arcsec) = 22.02, 7.08
angle (degrees, anti-clockwise from east) = -67.15

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 46.96 5.49 19.721 0.127 AB
GALEX_NUV 57.79 1.69 19.495 0.032 AB
SDSS_u 239.79 9.81 17.950 0.044 AB
PanSTARRS_g 1062.52 2.6 16.334 0.003 AB
PanSTARRS_r 2149.18 3.45 15.569 0.002 AB
SDSS_i 3014.79 16.17 15.202 0.006 AB
PanSTARRS_i 3047.71 3.7 15.190 0.001 AB
SDSS_z 3907.96 35.1 14.920 0.010 AB
DES_z 3910.46 10.54 14.919 0.003 AB
PanSTARRS_y 4316.81 21.87 14.812 0.006 AB
2MASS_H 7491.98 382.86 12.846 0.055 Vega
WISE_W1 3009.27 33.89 12.505 0.012 Vega
WISE_W3 2414.84 120.89 10.269 0.054 Vega
WISE_W4 1660.41 550.62 9.229 0.360 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})\, 9.630 9.728 9.828
{\rm log}_{10}({\rm SFR}) -1.907 -1.163 -0.597
{\rm log}_{10}({\rm sSFR}) -11.645 -10.910 -10.306
{\rm stellar\ age} 7.109 8.385 11.822

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.113 -0.599 -0.301
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.404 -0.576 0.104

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.315 0.622 1.020
\delta -0.515 -0.109 0.184
\tau_1/\tau_2 0.611 0.997 1.364
Q_{PAH} 1.099 2.978 5.349
U_{min} 3.157 8.221 15.215
{\rm log}_{10}(\gamma_e)\, -3.302 -2.303 -0.894

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.767 -0.612 -0.100
{\rm log}_{10}(\tau_{AGN})\, 1.167 1.493 1.946

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.930 -1.182 -0.646
0.03-0.10 Gyr -2.298 -1.243 -0.575
0.10-0.33 Gyr -2.809 -1.456 -0.720
0.33-1.07 Gyr -3.397 -1.486 -0.719
1.07-3.49 Gyr -3.231 -1.183 -0.383
3.49-11.40 Gyr -1.390 -0.218 -0.023
11.40-12.67 Gyr -0.457 0.293 0.927

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 11.107 11.155 11.246
{\rm log}_{10}({\rm SFR}) -0.311 -0.047 0.254
{\rm log}_{10}({\rm sSFR}) -11.492 -11.198 -10.924
{\rm stellar\ age} 7.637 8.962 11.809

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.602 -0.435 -0.314
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.621 0.015 0.358

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.074 0.143 0.261
\delta -0.732 -0.320 0.038
\tau_1/\tau_2 0.505 0.947 1.413
Q_{PAH} 0.441 1.199 2.767
U_{min} 2.300 7.083 13.954
{\rm log}_{10}(\gamma_e)\, -3.334 -2.524 -1.619

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.650 -1.589 -1.304
{\rm log}_{10}(\tau_{AGN})\, 0.942 1.173 1.610

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.092 0.174 0.360
0.03-0.10 Gyr -1.250 -0.294 0.256
0.10-0.33 Gyr -2.048 -0.550 0.067
0.33-1.07 Gyr -2.205 -0.562 0.046
1.07-3.49 Gyr -1.749 -0.201 0.603
3.49-11.40 Gyr 0.086 1.260 1.405
11.40-12.67 Gyr 1.158 1.837 2.375