2025xnd

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Information

Transient

Name: AT2025xnd
Right ascension: 21h40m40.99s
Declination: -9d28m26.04s
Discovery Date: Sept. 14, 2025, 5:20 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.034

Host

Name:
Right ascension: 21h40m41.24s
Declination: -9d28m24.50s
Redshift: None
Photometric Redshift: 0.190
 

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 6.26
Cutout download processed 6.34
Global aperture construction processed 0.65
Local aperture photometry processed 5.88
Global aperture photometry processed 5.41
Validate local photometry no valid phot 0.02
Validate global photometry processed 13.98
Host information processed 0.12
Global host SED inference processed 506.08
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.04
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) = 21h40m40.99s, -9d28m26.04s
semi major axis, semi minor axis (arcsec) = 0.63, 0.63
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) = 21h40m41.23s, -9d28m24.38s
semi major axis, semi minor axis (arcsec) = 5.98, 3.83
angle (degrees, anti-clockwise from east) = -5.51

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 1.34 0.91 23.584 0.738 AB
GALEX_NUV 3.63 1.56 22.502 0.467 AB
DES_g 71.08 0.43 19.271 0.007 AB
PanSTARRS_g 75.29 0.95 19.208 0.014 AB
PanSTARRS_r 182.31 1.24 18.248 0.007 AB
DES_r 205.62 1.36 18.117 0.007 AB
PanSTARRS_i 279.79 1.07 17.783 0.004 AB
PanSTARRS_z 343.61 3.31 17.560 0.010 AB
DES_z 388.04 3.68 17.428 0.010 AB
PanSTARRS_y 375.06 6.87 17.465 0.020 AB
2MASS_J 507.61 133.79 16.241 0.286 Vega
2MASS_H 766.1 227.5 15.322 0.322 Vega
2MASS_K 1430.75 241.01 14.173 0.183 Vega
WISE_W1 258.37 16.14 15.170 0.068 Vega
WISE_W2 193.07 18.75 14.847 0.105 Vega
WISE_W3 23.45 88.08 15.300 4.077 Vega
WISE_W4 614.62 551.57 10.308 0.974 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})\, 10.763 10.848 10.978
{\rm log}_{10}({\rm SFR}) -1.112 0.070 0.623
{\rm log}_{10}({\rm sSFR}) -12.109 -10.795 -10.195
{\rm stellar\ age} 6.299 7.194 10.697

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.358 -0.989 -0.729
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.332 -0.700 -0.119

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.259 0.415 0.570
\delta -0.931 -0.761 -0.495
\tau_1/\tau_2 0.626 1.035 1.510
Q_{PAH} 1.096 2.951 5.194
U_{min} 2.845 8.639 16.662
{\rm log}_{10}(\gamma_e)\, -2.863 -1.548 -0.520

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.692 -2.012 -1.320
{\rm log}_{10}(\tau_{AGN})\, 1.051 1.447 1.795

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.993 0.065 0.480
0.03-0.10 Gyr -2.611 0.001 0.688
0.10-0.32 Gyr -3.166 -0.190 0.616
0.32-1.01 Gyr -3.658 -0.384 0.493
1.01-3.23 Gyr -2.610 0.033 0.812
3.23-10.27 Gyr -0.576 0.973 1.174
10.27-11.41 Gyr 0.399 1.307 2.160