2025xtj

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Information

Transient

Name: AT2025xtj
Right ascension: 23h31m54.14s
Declination: 23d19m48.42s
Discovery Date: Sept. 16, 2025, 8:41 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.054

Host

Name:
Right ascension: 23h31m54.15s
Declination: 23d19m48.62s
Redshift: None
Photometric Redshift: 0.144
 

Processing Status: blocked

Task Name Status Time taken (s) Warning Flag
Cutout download processed 17.39
Transient MWEBV processed 0.09
Host match processed 5.36
Host information processed 0.11
Host MWEBV processed 0.04
Global aperture construction processed 0.63
Global aperture photometry processed 6.27
Validate global photometry processed 17.78
Global host SED inference processed 402.95
Local aperture photometry processed 6.74
Validate local photometry no valid phot 0.03
Local host SED inference not processed None
 

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) = 23h31m54.14s, 23d19m48.42s
semi major axis, semi minor axis (arcsec) = 0.79, 0.79
angle (degrees, anti-clockwise from east) = 0.0

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

Data not available


Aperture details

RA, DEC (J2000) = 23h31m54.14s, 23d19m48.71s
semi major axis, semi minor axis (arcsec) = 4.67, 3.99
angle (degrees, anti-clockwise from east) = -149.87

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 2.38 1.09 22.958 0.498 AB
GALEX_NUV 6.2 1.35 21.919 0.236 AB
SDSS_u 7.24 3.01 21.750 0.451 AB
SDSS_g 35.09 2.24 20.037 0.069 AB
DES_g 42.42 0.56 19.831 0.014 AB
PanSTARRS_g 41.72 0.8 19.849 0.021 AB
SDSS_r 58.05 2.73 19.491 0.051 AB
PanSTARRS_r 67.91 1.1 19.320 0.018 AB
DES_r 73.02 1.1 19.241 0.016 AB
SDSS_i 84.42 3.51 19.084 0.045 AB
PanSTARRS_i 88.56 1.47 19.032 0.018 AB
PanSTARRS_z 106.04 2.9 18.836 0.030 AB
SDSS_z 154.56 10.39 18.427 0.073 AB
DES_z 103.7 2.94 18.861 0.031 AB
PanSTARRS_y 115.04 6.33 18.748 0.060 AB
2MASS_J 145.3 112.73 17.599 0.842 Vega
2MASS_H 175.53 176.61 16.921 1.092 Vega
2MASS_K 80.01 213.46 17.304 2.897 Vega
WISE_W1 56.05 9.33 16.830 0.181 Vega
WISE_W2 13.07 12.49 17.771 1.038 Vega
WISE_W3 27.93 60.96 15.111 2.370 Vega
WISE_W4 456.75 444.83 10.631 1.057 Vega
 

Imaging data

Click the image to load the interactive plot.


 

Spectral Energy Distribution

 

Host SED inference


Local parameter details

Documentation

Data not available


Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.701 9.857 9.977
{\rm log}_{10}({\rm SFR}) -0.961 0.051 0.582
{\rm log}_{10}({\rm sSFR}) -10.717 -9.844 -9.193
{\rm stellar\ age} 3.708 5.869 7.361

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.550 -1.014 -0.419
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.626 -0.720 0.188

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.193 0.398 0.637
\delta -0.543 -0.184 0.117
\tau_1/\tau_2 0.546 0.962 1.388
Q_{PAH} 0.885 2.596 4.767
U_{min} 3.120 8.656 16.147
{\rm log}_{10}(\gamma_e)\, -2.556 -1.554 -0.559

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.690 -1.705 -0.730
{\rm log}_{10}(\tau_{AGN})\, 1.147 1.574 1.890

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.133 -1.424 -0.716
0.03-0.10 Gyr -0.865 0.201 0.743
0.10-0.32 Gyr -0.189 0.357 0.745
0.32-1.04 Gyr -1.122 -0.066 0.270
1.04-3.34 Gyr -1.393 -0.158 0.121
3.34-10.74 Gyr -0.899 -0.112 0.122
10.74-11.93 Gyr -1.101 -0.050 0.572