2025usd

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Information

Transient

Name: AT2025usd
Right ascension: 15h50m33.79s
Declination: 15d40m01.97s
Discovery Date: Aug. 18, 2025, 6:35 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.030

Host

Name:
Right ascension: 15h50m33.80s
Declination: 15d40m00.23s
Redshift: 0.163485
Photometric Redshift:
 

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 5.9
Cutout download processed 38.89
Global aperture construction processed 0.66
Local aperture photometry processed 7.03
Global aperture photometry processed 6.28
Validate local photometry no valid phot 0.02
Validate global photometry processed 17.03
Host information processed 0.15
Global host SED inference processed 478.13
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.08
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) = 15h50m33.79s, 15d40m01.97s
semi major axis, semi minor axis (arcsec) = 0.71, 0.71
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) = 15h50m33.79s, 15d40m00.49s
semi major axis, semi minor axis (arcsec) = 6.89, 5.34
angle (degrees, anti-clockwise from east) = -173.19

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 76.34 4.91 19.193 0.070 AB
PanSTARRS_r 493.99 1.75 17.166 0.004 AB
SDSS_i 774.26 8.15 16.678 0.011 AB
PanSTARRS_i 757.13 1.64 16.702 0.002 AB
WISE_W1 725.56 16.31 14.049 0.024 Vega
WISE_W4 26.37 380.71 13.727 15.672 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})\, 10.484 10.678 10.870
{\rm log}_{10}({\rm SFR}) 0.774 1.169 1.508
{\rm log}_{10}({\rm sSFR}) -9.947 -9.513 -9.064
{\rm stellar\ age} 0.851 3.388 5.802

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.174 -0.522 -0.148
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.125 0.120 0.339

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.429 0.602 0.819
\delta -0.737 -0.479 -0.188
\tau_1/\tau_2 0.389 0.775 1.142
Q_{PAH} 0.356 1.118 2.510
U_{min} 2.656 7.816 15.234
{\rm log}_{10}(\gamma_e)\, -3.254 -2.338 -1.473

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.505 -3.517 -2.210
{\rm log}_{10}(\tau_{AGN})\, 1.051 1.563 1.951

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.947 1.182 1.404
0.03-0.10 Gyr 0.222 1.130 1.582
0.10-0.32 Gyr 0.685 1.384 1.837
0.32-1.03 Gyr 0.373 1.263 1.632
1.03-3.29 Gyr -0.860 0.728 1.192
3.29-10.54 Gyr -1.512 0.355 0.936
10.54-11.71 Gyr -1.787 0.275 1.112