2025urn results

Information

Transient
Name:AT2025urn
Right ascension: 21h36m35.56s
Declination:19d52m06.66s
Discovery Date:Aug. 20, 2025, 9:04 a.m.
Classification:None
Redshift:None
MW E(B-V):0.103
Host
Name:
Right ascension: 21h36m35.55s
Declination:19d52m05.58s
Redshift:None
Photometric Redshift:0.115
 

Cutout Download Report

Downloaded Unavailable
2MASS_H
2MASS_J
2MASS_K
WISE_W1
WISE_W2
WISE_W3
WISE_W4
GALEX_NUV
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_z
 GALEX_FUV
DES_i
DES_Y
 

Processing Status: blocked

Task Name Status Time (s)
Cutout download processed 29.89
Transient MWEBV processed 0.11
Host match processed 7.38
Host information processed 0.14
Host MWEBV processed 0.04
Global aperture construction processed 0.68
Global aperture photometry processed 5.48
Validate global photometry processed 17.28
Global host SED inference processed 391.64
Local aperture photometry processed 6.45
Validate local photometry processed 0.02
Local host SED inference not enough filters 16.68
 

Imaging data


 

Spectral Energy Distribution


 

Aperture Photometry


Aperture details

RA, DEC (J2000):21h36m35.56s, 19d52m06.66s
semi major axis, semi minor axis (arcsec):0.96, 0.96
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_z 25.16 1.03 20.398 0.044 AB

Aperture details

RA, DEC (J2000):21h36m35.53s, 19d52m05.77s
semi major axis, semi minor axis (arcsec):3.33, 2.86
angle (degrees, anti-clockwise from east):-119.36
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 8.84 2.14 21.534 0.263 AB
SDSS_u 15.0 2.21 20.960 0.160 AB
SDSS_g 44.16 1.93 19.787 0.048 AB
DES_g 46.71 0.32 19.726 0.007 AB
PanSTARRS_g 49.23 0.7 19.669 0.015 AB
SDSS_r 69.13 2.47 19.301 0.039 AB
PanSTARRS_r 71.93 0.83 19.258 0.013 AB
DES_r 73.98 0.84 19.227 0.012 AB
SDSS_i 94.93 3.3 18.956 0.038 AB
PanSTARRS_i 93.69 0.88 18.971 0.010 AB
PanSTARRS_z 99.53 1.9 18.905 0.021 AB
SDSS_z 94.54 7.03 18.961 0.081 AB
DES_z 106.81 2.2 18.828 0.022 AB
PanSTARRS_y 106.2 4.37 18.835 0.045 AB
2MASS_J -35.54 116.02 Vega
2MASS_H -4.95 166.65 Vega
2MASS_K 43.69 150.75 17.961 3.746 Vega
WISE_W1 65.14 15.82 16.666 0.264 Vega
WISE_W2 30.51 16.6 16.850 0.591 Vega
WISE_W3 172.18 49.68 13.136 0.313 Vega
WISE_W4 343.75 480.77 10.939 1.518 Vega
 

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})\, 9.421 9.528 9.647
{\rm log}_{10}({\rm SFR}) -0.481 -0.199 0.091
{\rm log}_{10}({\rm sSFR}) -10.040 -9.742 -9.428
{\rm stellar\ age} 3.744 5.228 6.368

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.322 -0.865 -0.378
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.729 -1.247 -0.103

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.093 0.185 0.319
\delta -0.582 -0.144 0.197
\tau_1/\tau_2 0.786 1.100 1.430
Q_{PAH} 0.757 1.883 3.458
U_{min} 2.897 7.610 14.781
{\rm log}_{10}(\gamma_e)\, -2.892 -2.073 -1.239

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.841 -2.089 -1.357
{\rm log}_{10}(\tau_{AGN})\, 0.954 1.327 1.781

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.647 -0.459 -0.263
0.03-0.10 Gyr -0.468 -0.121 0.209
0.10-0.32 Gyr -0.116 0.134 0.346
0.32-1.05 Gyr -0.324 -0.050 0.171
1.05-3.41 Gyr -0.603 -0.326 -0.127
3.41-11.04 Gyr -0.805 -0.464 -0.255
11.04-12.27 Gyr -1.045 -0.469 -0.018