2025xtk

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Information

Transient

Name: AT2025xtk
Right ascension: 2h22m15.95s
Declination: -18d17m22.77s
Discovery Date: Sept. 16, 2025, 12:23 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.030

Host

Name:
Right ascension: 2h22m15.91s
Declination: -18d17m24.32s
Redshift: None
Photometric Redshift: 0.150
 

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 6.91
Cutout download processed 17.12
Global aperture construction processed 0.64
Local aperture photometry processed 5.98
Global aperture photometry processed 5.47
Validate local photometry no valid phot 0.03
Validate global photometry processed 14.09
Host information processed 0.11
Global host SED inference processed 391.66
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.08
Host MWEBV processed 0.04
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) = 2h22m15.95s, -18d17m22.77s
semi major axis, semi minor axis (arcsec) = 0.77, 0.77
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) = 2h22m15.89s, -18d17m24.13s
semi major axis, semi minor axis (arcsec) = 6.36, 5.29
angle (degrees, anti-clockwise from east) = -50.75

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 20.14 3.79 20.640 0.204 AB
GALEX_NUV 26.17 2.75 20.356 0.114 AB
DES_g 171.92 0.47 18.312 0.003 AB
PanSTARRS_g 169.79 1.25 18.325 0.008 AB
PanSTARRS_r 288.47 1.67 17.750 0.006 AB
DES_r 310.33 0.65 17.670 0.002 AB
PanSTARRS_i 383.61 1.53 17.440 0.004 AB
PanSTARRS_z 455.06 4.39 17.255 0.010 AB
DES_z 478.66 2.65 17.200 0.006 AB
PanSTARRS_y 526.27 8.13 17.097 0.017 AB
2MASS_J 588.52 150.28 16.081 0.277 Vega
2MASS_H 1155.59 227.75 14.875 0.214 Vega
2MASS_K 743.54 297.19 14.884 0.434 Vega
WISE_W1 314.19 11.0 14.958 0.038 Vega
WISE_W2 228.71 13.88 14.663 0.066 Vega
WISE_W3 763.96 55.23 11.518 0.078 Vega
WISE_W4 70.28 302.91 12.663 4.679 Vega
 

Imaging data

 

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})\, 10.525 10.568 10.615
{\rm log}_{10}({\rm SFR}) 0.199 0.548 0.832
{\rm log}_{10}({\rm sSFR}) -10.374 -10.021 -9.735
{\rm stellar\ age} 5.741 6.423 7.397

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.778 -0.548 -0.383
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.603 -0.201 0.335

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.097 0.172 0.283
\delta -0.541 -0.145 0.161
\tau_1/\tau_2 0.695 1.065 1.427
Q_{PAH} 0.907 2.661 4.765
U_{min} 2.435 7.398 14.623
{\rm log}_{10}(\gamma_e)\, -2.317 -1.240 -0.417

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.805 -2.219 -1.392
{\rm log}_{10}(\tau_{AGN})\, 1.130 1.557 1.913

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.951 -0.236 0.072
0.03-0.10 Gyr 0.294 0.687 0.985
0.10-0.32 Gyr 0.473 0.735 0.945
0.32-1.03 Gyr 0.260 0.571 0.750
1.03-3.32 Gyr 0.243 0.567 0.764
3.32-10.68 Gyr 0.563 0.721 0.821
10.68-11.87 Gyr 0.383 0.813 1.253