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: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	25.98
Transient MWEBV	processed	0.11
Host match	processed	7.44
Host information	processed	0.14
Host MWEBV	processed	0.05
Global aperture construction	processed	0.65
Global aperture photometry	processed	5.28
Validate global photometry	processed	12.97
Global host SED inference	processed	432.41
Local aperture photometry	processed	5.83
Validate local photometry	no valid phot	0.02
Local host SED inference	not processed	None

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

Click the image to load the interactive plot.

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