2025sai

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Information

Transient

Name: AT2025sai
Right ascension: 3h45m07.26s
Declination: -23d04m25.84s
Discovery Date: July 24, 2025, 6:06 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.016

Host

Name:
Right ascension: 3h45m06.82s
Declination: -23d04m28.43s
Redshift: None
Photometric Redshift: 0.158
 

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 7.44
Cutout download processed 25.98
Global aperture construction processed 0.65
Local aperture photometry processed 5.83
Global aperture photometry processed 5.28
Validate local photometry no valid phot 0.02
Validate global photometry processed 12.97
Host information processed 0.14
Global host SED inference processed 432.41
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.11
Host MWEBV processed 0.05
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) = 3h45m07.26s, -23d04m25.84s
semi major axis, semi minor axis (arcsec) = 0.74, 0.74
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) = 3h45m06.79s, -23d04m28.23s
semi major axis, semi minor axis (arcsec) = 9.58, 7.06
angle (degrees, anti-clockwise from east) = -11.78

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_g 213.89 0.55 18.075 0.003 AB
PanSTARRS_g 209.97 1.84 18.095 0.009 AB
PanSTARRS_r 367.25 2.79 17.488 0.008 AB
DES_r 404.18 0.86 17.384 0.002 AB
PanSTARRS_i 519.01 3.99 17.112 0.008 AB
PanSTARRS_z 611.65 5.46 16.934 0.010 AB
DES_z 643.9 3.25 16.878 0.005 AB
PanSTARRS_y 769.72 13.55 16.684 0.019 AB
2MASS_J 822.73 209.24 15.717 0.276 Vega
2MASS_H 1219.35 294.53 14.817 0.262 Vega
2MASS_K 1257.03 378.44 14.314 0.327 Vega
WISE_W1 447.2 14.15 14.575 0.034 Vega
WISE_W2 312.2 19.0 14.325 0.066 Vega
WISE_W3 431.18 90.82 12.139 0.229 Vega
WISE_W4 140.58 479.09 11.910 3.700 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})\, 10.548 10.660 10.757
{\rm log}_{10}({\rm SFR}) -0.846 -0.087 0.780
{\rm log}_{10}({\rm sSFR}) -11.537 -10.774 -9.888
{\rm stellar\ age} 2.723 4.880 6.388

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.858 -0.547 -0.364
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.937 0.060 0.369

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.135 0.280 0.504
\delta -0.878 -0.644 -0.268
\tau_1/\tau_2 0.588 0.957 1.329
Q_{PAH} 0.452 1.422 3.382
U_{min} 2.317 7.161 14.459
{\rm log}_{10}(\gamma_e)\, -3.144 -2.225 -1.185

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.313 -3.162 -2.019
{\rm log}_{10}(\tau_{AGN})\, 1.106 1.575 1.930

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.374 -0.225 0.216
0.03-0.10 Gyr -1.252 -0.120 0.903
0.10-0.32 Gyr -0.833 0.502 1.292
0.32-1.03 Gyr 0.279 0.937 1.253
1.03-3.30 Gyr 0.474 0.944 1.256
3.30-10.60 Gyr -0.213 0.648 0.918
10.60-11.77 Gyr -0.574 0.514 1.091