2025xlu

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Information

Transient

Name: AT2025xlu
Right ascension: 0h42m12.79s
Declination: -21d10m10.23s
Discovery Date: Sept. 13, 2025, 10:50 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.016

Host

Name:
Right ascension: 0h42m12.85s
Declination: -21d10m10.96s
Redshift: None
Photometric Redshift: 0.082
 

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
processed
 status
Local host SED inference
Local host SED inference
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 7.3
Cutout download processed 17.51
Global aperture construction processed 0.64
Local aperture photometry processed 6.34
Global aperture photometry processed 6.61
Validate local photometry processed 0.03
Validate global photometry processed 17.19
Host information processed 0.11
Global host SED inference processed 1052.81
Local host SED inference processed 430.79
Transient information processed 0.0
Transient MWEBV processed 0.04
Host MWEBV processed 0.04
Processing status completed 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) = 0h42m12.79s, -21d10m10.23s
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 18.39 0.17 20.739 0.010 AB
PanSTARRS_r 44.97 0.53 19.768 0.013 AB
DES_r 40.23 0.28 19.888 0.008 AB
SDSS_i 48.69 2.18 19.681 0.049 AB
PanSTARRS_i 60.86 0.6 19.439 0.011 AB
PanSTARRS_z 73.93 1.1 19.228 0.016 AB
SDSS_z 67.01 5.57 19.335 0.090 AB
DES_z 73.42 1.21 19.235 0.018 AB
PanSTARRS_y 86.87 2.92 19.053 0.037 AB

Aperture details

RA, DEC (J2000) = 0h42m12.83s, -21d10m10.66s
semi major axis, semi minor axis (arcsec) = 6.78, 2.93
angle (degrees, anti-clockwise from east) = -104.63

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 1.53 1.25 23.437 0.884 AB
GALEX_NUV 3.78 2.04 22.457 0.587 AB
SDSS_u 41.4 3.8 19.858 0.100 AB
SDSS_g 72.7 2.8 19.246 0.042 AB
DES_g 80.66 0.4 19.133 0.005 AB
PanSTARRS_g 78.57 1.41 19.162 0.020 AB
SDSS_r 150.13 4.05 18.459 0.029 AB
PanSTARRS_r 162.98 1.76 18.370 0.012 AB
DES_r 168.55 0.62 18.333 0.004 AB
SDSS_i 214.54 5.68 18.071 0.029 AB
PanSTARRS_i 213.66 1.99 18.076 0.010 AB
PanSTARRS_z 262.94 3.7 17.850 0.015 AB
SDSS_z 272.82 18.37 17.810 0.073 AB
DES_z 292.0 2.57 17.737 0.010 AB
PanSTARRS_y 260.35 9.86 17.861 0.041 AB
2MASS_J 404.77 112.43 16.487 0.302 Vega
2MASS_H 424.72 175.92 15.962 0.450 Vega
2MASS_K 276.57 184.27 15.958 0.723 Vega
WISE_W1 133.67 10.81 15.886 0.088 Vega
WISE_W2 70.79 15.56 15.936 0.239 Vega
WISE_W3 -100.69 74.22 Vega
WISE_W4 -406.08 394.96 Vega
 

Imaging data

 

Spectral Energy Distribution

 
 
 
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.402 9.506 9.619
{\rm log}_{10}({\rm SFR}) -1.649 -1.098 -0.622
{\rm log}_{10}({\rm sSFR}) -11.132 -10.590 -10.144
{\rm stellar\ age} 6.758 7.884 11.334

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.949 -0.476 -0.050
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.987 -0.685 -0.436

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.345 0.694 1.035
\delta -0.455 -0.176 0.125
\tau_1/\tau_2 0.524 0.873 1.238
Q_{PAH} 0.908 2.756 5.336
U_{min} 3.087 7.999 14.964
{\rm log}_{10}(\gamma_e)\, -2.921 -1.914 -0.759

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.523 -0.798 -0.242
{\rm log}_{10}(\tau_{AGN})\, 0.929 1.426 1.965

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.401 -0.877 -0.408
0.03-0.10 Gyr -2.346 -1.373 -0.730
0.10-0.33 Gyr -2.804 -1.495 -0.889
0.33-1.07 Gyr -2.806 -1.426 -0.796
1.07-3.49 Gyr -2.681 -1.050 -0.466
3.49-11.41 Gyr -1.145 -0.414 -0.230
11.41-12.67 Gyr -0.773 -0.107 0.688

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.030 10.104 10.157
{\rm log}_{10}({\rm SFR}) -2.622 -1.271 -0.386
{\rm log}_{10}({\rm sSFR}) -12.722 -11.366 -10.490
{\rm stellar\ age} 9.650 11.955 12.032

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.644 -1.307 -1.000
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.491 0.007 0.406

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.165 0.308 0.465
\delta -0.633 -0.261 0.076
\tau_1/\tau_2 0.473 0.950 1.453
Q_{PAH} 0.984 2.639 4.776
U_{min} 4.277 11.025 18.409
{\rm log}_{10}(\gamma_e)\, -2.194 -1.130 -0.378

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.078 -2.547 -1.409
{\rm log}_{10}(\tau_{AGN})\, 1.128 1.686 1.990

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -5.152 -3.107 -1.610
0.03-0.10 Gyr -2.796 -1.138 -0.228
0.10-0.33 Gyr -4.996 -2.854 -1.121
0.33-1.07 Gyr -7.605 -4.968 -2.104
1.07-3.49 Gyr -5.656 -3.581 -1.621
3.49-11.41 Gyr -3.016 -1.597 0.065
11.41-12.67 Gyr 0.887 1.247 1.307