2025altw results

Information

Transient
Name:AT2025altw
Right ascension: 0h57m23.81s
Declination:3d30m48.11s
Discovery Date:Nov. 10, 2025, 7:23 a.m.
Classification:None
Redshift:None
MW E(B-V):0.020
Host
Name:
Right ascension: 0h57m23.79s
Declination:3d30m49.11s
Redshift:None
Photometric Redshift:0.105
 

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_z
DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 18.9
Transient MWEBV processed 0.04
Host match processed 6.38
Host information processed 0.17
Host MWEBV processed 0.05
Global aperture construction processed 0.64
Global aperture photometry processed 6.31
Validate global photometry processed 18.56
Global host SED inference processed 435.16
Local aperture photometry processed 6.18
Validate local photometry processed 0.03
Local host SED inference processed 746.96
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):0h57m23.81s, 3d30m48.11s
semi major axis, semi minor axis (arcsec):1.04, 1.04
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 43.89 0.76 19.794 0.019 AB
PanSTARRS_y 31.93 1.68 20.139 0.057 AB

Aperture details

RA, DEC (J2000):0h57m23.78s, 3d30m49.35s
semi major axis, semi minor axis (arcsec):2.91, 2.37
angle (degrees, anti-clockwise from east):-4.73
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 8.81 0.78 21.538 0.096 AB
GALEX_NUV 14.55 0.64 20.993 0.048 AB
SDSS_u 24.8 3.06 20.414 0.134 AB
SDSS_g 62.55 2.2 19.409 0.038 AB
DES_g 66.03 0.31 19.351 0.005 AB
PanSTARRS_g 66.37 0.83 19.345 0.014 AB
SDSS_r 88.71 2.74 19.030 0.033 AB
PanSTARRS_r 86.9 0.57 19.052 0.007 AB
DES_r 92.47 0.4 18.985 0.005 AB
SDSS_i 122.76 3.6 18.677 0.032 AB
PanSTARRS_i 102.92 0.77 18.869 0.008 AB
PanSTARRS_z 117.64 1.9 18.724 0.018 AB
SDSS_z 138.58 8.56 18.546 0.067 AB
DES_z 124.26 1.32 18.664 0.012 AB
PanSTARRS_y 131.78 4.03 18.600 0.033 AB
2MASS_J 125.0 83.01 17.763 0.721 Vega
2MASS_H 182.21 133.41 16.881 0.795 Vega
2MASS_K 17.3 146.99 18.967 9.227 Vega
WISE_W1 47.12 8.17 17.018 0.188 Vega
WISE_W2 18.71 10.71 17.381 0.621 Vega
WISE_W3 -157.29 71.96 Vega
WISE_W4 2399.23 755.83 8.830 0.342 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.599 8.954 9.325
{\rm log}_{10}({\rm SFR}) -0.916 -0.313 0.245
{\rm log}_{10}({\rm sSFR}) -10.090 -9.285 -8.447
{\rm stellar\ age} 1.209 5.255 8.165

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.773 -1.205 -0.300
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.498 -0.786 0.085

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.129 0.384 0.735
\delta -0.782 -0.274 0.130
\tau_1/\tau_2 0.550 0.968 1.425
Q_{PAH} 0.866 2.506 5.023
U_{min} 2.955 8.217 15.548
{\rm log}_{10}(\gamma_e)\, -3.395 -2.466 -0.857

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.786 -0.802 -0.053
{\rm log}_{10}(\tau_{AGN})\, 1.090 1.468 1.992

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.808 -0.135 0.269
0.03-0.10 Gyr -1.966 -0.674 0.267
0.10-0.32 Gyr -2.873 -1.231 -0.317
0.32-1.06 Gyr -3.145 -1.283 -0.456
1.06-3.43 Gyr -3.278 -1.269 -0.686
3.43-11.16 Gyr -3.147 -1.253 -0.621
11.16-12.40 Gyr -3.030 -1.184 -0.096

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.234 9.439 9.585
{\rm log}_{10}({\rm SFR}) -0.725 0.026 0.564
{\rm log}_{10}({\rm sSFR}) -10.267 -9.477 -8.786
{\rm stellar\ age} 1.694 4.941 6.689

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.414 -0.795 -0.272
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.580 -0.593 0.193

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.142 0.334 0.587
\delta -0.583 -0.190 0.087
\tau_1/\tau_2 0.543 0.968 1.403
Q_{PAH} 0.586 1.936 3.953
U_{min} 3.175 9.147 16.779
{\rm log}_{10}(\gamma_e)\, -2.209 -1.192 -0.329

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.158 -1.520 -0.853
{\rm log}_{10}(\tau_{AGN})\, 1.284 1.652 1.907

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.624 -1.120 -0.553
0.03-0.10 Gyr -0.646 0.170 0.722
0.10-0.32 Gyr -0.375 0.229 0.631
0.32-1.06 Gyr -1.995 -0.407 -0.016
1.06-3.43 Gyr -2.400 -0.612 -0.267
3.43-11.16 Gyr -2.184 -0.677 -0.353
11.16-12.40 Gyr -2.408 -0.653 -0.001