2025alwd results

Information

Transient
Name:AT2025alwd
Right ascension: 8h23m38.74s
Declination:21d14m36.53s
Discovery Date:Oct. 24, 2025, 10:01 p.m.
Classification:None
Redshift:None
MW E(B-V):0.038
Host
Name:
Right ascension: 8h23m38.72s
Declination:21d14m35.93s
Redshift:None
Photometric Redshift:0.134
 

Cutout Download Report

Downloaded Unavailable
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
 

Processing Status: blocked

Task Name Status Time (s)
Cutout download processed 15.35
Transient MWEBV processed 0.05
Host match processed 5.14
Host information processed 0.21
Host MWEBV processed 0.05
Global aperture construction processed 0.64
Global aperture photometry processed 5.12
Validate global photometry processed 17.39
Global host SED inference processed 436.65
Local aperture photometry processed 4.77
Validate local photometry no valid phot 0.02
Local host SED inference not processed None
 

Imaging data


 

Spectral Energy Distribution


 

Aperture Photometry


Aperture details

Data not available


Aperture details

RA, DEC (J2000):8h23m38.71s, 21d14m36.07s
semi major axis, semi minor axis (arcsec):2.9, 2.64
angle (degrees, anti-clockwise from east):-127.22
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 1.3 0.86 23.618 0.720 AB
GALEX_NUV -1.09 0.77 AB
SDSS_u 14.61 2.37 20.988 0.176 AB
SDSS_g 45.06 1.93 19.766 0.046 AB
PanSTARRS_g 50.69 0.69 19.638 0.015 AB
SDSS_r 112.74 3.06 18.770 0.029 AB
PanSTARRS_r 109.85 0.62 18.798 0.006 AB
SDSS_i 161.28 3.74 18.381 0.025 AB
PanSTARRS_i 155.95 0.79 18.418 0.006 AB
PanSTARRS_z 209.47 1.72 18.097 0.009 AB
SDSS_z 216.0 7.83 18.064 0.039 AB
PanSTARRS_y 231.62 4.49 17.988 0.021 AB
2MASS_J 206.08 73.8 17.220 0.389 Vega
2MASS_H 321.02 119.55 16.266 0.404 Vega
2MASS_K 431.56 113.9 15.475 0.287 Vega
WISE_W1 124.08 11.68 15.967 0.102 Vega
WISE_W2 77.2 13.34 15.842 0.188 Vega
WISE_W3 40.36 63.26 14.711 1.702 Vega
WISE_W4 -50.77 402.21 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})\, 10.183 10.271 10.394
{\rm log}_{10}({\rm SFR}) -1.866 -0.695 0.073
{\rm log}_{10}({\rm sSFR}) -12.169 -11.004 -10.158
{\rm stellar\ age} 6.282 7.294 10.745

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.175 -0.827 -0.602
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.538 -0.729 0.052

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.236 0.384 0.538
\delta -0.864 -0.641 -0.307
\tau_1/\tau_2 0.553 0.940 1.344
Q_{PAH} 0.670 2.055 4.204
U_{min} 2.943 8.354 15.823
{\rm log}_{10}(\gamma_e)\, -2.014 -0.960 -0.276

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.284 -3.082 -1.785
{\rm log}_{10}(\tau_{AGN})\, 1.051 1.566 1.932

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.105 -1.195 -0.558
0.03-0.10 Gyr -1.957 -0.634 0.211
0.10-0.32 Gyr -2.206 -0.553 0.109
0.32-1.04 Gyr -2.872 -0.644 -0.001
1.04-3.36 Gyr -1.988 -0.140 0.345
3.36-10.84 Gyr -0.557 0.408 0.574
10.84-12.05 Gyr -0.152 0.604 1.503