2025xsk

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Information

Transient

Name: AT2025xsk
Right ascension: 13h52m18.64s
Declination: 28d37m14.21s
Discovery Date: Sept. 7, 2025, 3 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.014

Host

Name: 1841093
Right ascension: 13h52m18.72s
Declination: 28d37m14.66s
Redshift: None
Photometric Redshift: 0.062
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 8.97
Transient MWEBV processed 0.04
Host match processed 6.81
Host information processed 0.11
Host MWEBV processed 0.04
Global aperture construction processed 0.61
Global aperture photometry processed 4.67
Validate global photometry processed 13.55
Global host SED inference processed 501.04
Local aperture photometry processed 5.08
Validate local photometry processed 0.02
Local host SED inference processed 423.92
 

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) = 13h52m18.64s, 28d37m14.21s
semi major axis, semi minor axis (arcsec) = 1.67, 1.67
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 97.72 0.55 18.925 0.006 AB
PanSTARRS_g 87.48 0.45 19.045 0.006 AB
SDSS_r 132.34 3.06 18.596 0.025 AB
PanSTARRS_r 119.33 0.4 18.708 0.004 AB
DES_r 144.71 1.13 18.499 0.008 AB
PanSTARRS_i 161.97 0.69 18.376 0.005 AB
PanSTARRS_z 175.23 1.11 18.291 0.007 AB
SDSS_z 185.81 5.75 18.227 0.034 AB
DES_z 189.73 2.6 18.205 0.015 AB
PanSTARRS_y 171.08 2.65 18.317 0.017 AB

Aperture details

RA, DEC (J2000) = 13h52m18.62s, 28d37m15.25s
semi major axis, semi minor axis (arcsec) = 12.66, 6.72
angle (degrees, anti-clockwise from east) = -25.91

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_g 441.03 1.35 17.289 0.003 AB
PanSTARRS_g 423.19 2.24 17.334 0.006 AB
SDSS_r 605.35 7.42 16.945 0.013 AB
PanSTARRS_r 602.05 2.03 16.951 0.004 AB
DES_r 655.34 2.66 16.859 0.004 AB
PanSTARRS_i 750.11 3.57 16.712 0.005 AB
PanSTARRS_z 836.84 5.93 16.593 0.008 AB
SDSS_z 741.17 26.19 16.725 0.038 AB
DES_z 838.92 6.17 16.591 0.008 AB
PanSTARRS_y 861.27 14.49 16.562 0.018 AB
2MASS_J 999.46 260.35 15.506 0.283 Vega
2MASS_H 1343.5 366.83 14.712 0.296 Vega
2MASS_K 1029.88 422.99 14.530 0.446 Vega
WISE_W1 466.54 14.59 14.529 0.034 Vega
WISE_W2 290.39 17.69 14.404 0.066 Vega
WISE_W3 859.27 77.58 11.391 0.098 Vega
WISE_W4 1683.07 501.02 9.215 0.323 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})\, 9.107 9.253 9.389
{\rm log}_{10}({\rm SFR}) -1.097 -0.672 -0.238
{\rm log}_{10}({\rm sSFR}) -10.376 -9.926 -9.402
{\rm stellar\ age} 3.561 5.853 7.360

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.533 -0.993 -0.514
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.822 -1.564 -1.020

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.148 0.355 0.613
\delta -0.689 -0.299 0.096
\tau_1/\tau_2 0.713 1.062 1.405
Q_{PAH} 1.135 3.227 5.414
U_{min} 3.302 8.463 15.632
{\rm log}_{10}(\gamma_e)\, -3.007 -1.935 -0.596

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.453 -1.573 -0.659
{\rm log}_{10}(\tau_{AGN})\, 1.036 1.567 1.964

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.993 -0.794 -0.564
0.03-0.10 Gyr -1.244 -0.644 -0.135
0.10-0.33 Gyr -1.073 -0.497 -0.048
0.33-1.08 Gyr -0.982 -0.512 -0.198
1.08-3.54 Gyr -1.072 -0.625 -0.400
3.54-11.64 Gyr -1.280 -0.742 -0.495
11.64-12.93 Gyr -1.485 -0.767 -0.254

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.841 9.955 10.063
{\rm log}_{10}({\rm SFR}) -1.453 -0.800 -0.285
{\rm log}_{10}({\rm sSFR}) -11.309 -10.748 -10.196
{\rm stellar\ age} 3.591 6.157 7.556

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.600 -1.279 -0.984
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.807 -1.265 0.014

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.074 0.164 0.290
\delta -0.514 0.008 0.289
\tau_1/\tau_2 0.573 0.948 1.320
Q_{PAH} 1.565 3.207 5.306
U_{min} 2.756 7.701 15.095
{\rm log}_{10}(\gamma_e)\, -2.856 -1.700 -0.771

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.146 -1.929 -1.464
{\rm log}_{10}(\tau_{AGN})\, 0.994 1.392 1.808

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.490 -0.751 -0.492
0.03-0.10 Gyr -2.324 -0.879 -0.190
0.10-0.33 Gyr -1.824 -0.528 0.200
0.33-1.08 Gyr -0.938 -0.066 0.350
1.08-3.54 Gyr -0.144 0.187 0.487
3.54-11.64 Gyr -0.817 -0.006 0.218
11.64-12.93 Gyr -1.323 -0.089 0.481