2025sgt

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Information

Transient

Name: AT2025sgt
Right ascension: 23h21m34.04s
Declination: 22d26m05.22s
Discovery Date: July 26, 2025, 8:42 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.049

Host

Name:
Right ascension: 23h21m34.14s
Declination: 22d26m04.75s
Redshift: None
Photometric Redshift: 0.045

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	6.71
Cutout download	processed	38.94
Global aperture construction	processed	0.65
Local aperture photometry	processed	7.29
Global aperture photometry	processed	6.93
Validate local photometry	processed	0.03
Validate global photometry	processed	18.08
Host information	processed	0.14
Global host SED inference	processed	455.07
Local host SED inference	processed	449.79
Transient information	processed	0.0
Transient MWEBV	processed	0.1
Host MWEBV	processed	0.04
Processing status	completed	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) = 23h21m34.04s, 22d26m05.22s
semi major axis, semi minor axis (arcsec) = 2.24, 2.24
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	16.35	2.14	20.866	0.142	AB
SDSS_g	55.59	2.01	19.537	0.039	AB
DES_g	58.75	0.33	19.477	0.006	AB
PanSTARRS_g	61.63	0.51	19.426	0.009	AB
SDSS_r	93.55	2.7	18.972	0.031	AB
PanSTARRS_r	93.74	0.68	18.970	0.008	AB
DES_r	96.11	0.65	18.943	0.007	AB
SDSS_i	118.48	3.4	18.716	0.031	AB
PanSTARRS_i	118.21	0.88	18.718	0.008	AB
PanSTARRS_z	133.24	1.75	18.588	0.014	AB
SDSS_z	123.12	6.99	18.674	0.062	AB
DES_z	137.84	1.85	18.552	0.015	AB
PanSTARRS_y	156.82	3.48	18.411	0.024	AB

Aperture details

RA, DEC (J2000) = 23h21m34.13s, 22d26m05.08s
semi major axis, semi minor axis (arcsec) = 10.66, 6.9
angle (degrees, anti-clockwise from east) = -164.11

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	27.64	3.39	20.296	0.133	AB
GALEX_NUV	31.69	2.33	20.148	0.080	AB
SDSS_u	46.45	7.65	19.733	0.179	AB
SDSS_g	206.93	4.39	18.110	0.023	AB
DES_g	238.74	0.76	17.955	0.003	AB
PanSTARRS_g	229.31	1.88	17.999	0.009	AB
SDSS_r	355.77	6.31	17.522	0.019	AB
PanSTARRS_r	343.18	2.47	17.561	0.008	AB
DES_r	382.22	1.41	17.444	0.004	AB
SDSS_i	449.97	9.25	17.267	0.022	AB
PanSTARRS_i	423.22	3.26	17.334	0.008	AB
PanSTARRS_z	495.2	6.58	17.163	0.014	AB
SDSS_z	552.42	25.3	17.044	0.050	AB
DES_z	536.07	3.93	17.077	0.008	AB
PanSTARRS_y	589.08	13.18	16.975	0.024	AB
2MASS_J	659.24	177.0	15.957	0.292	Vega
2MASS_H	280.52	263.08	16.412	1.018	Vega
2MASS_K	338.5	353.93	15.738	1.135	Vega
WISE_W1	228.83	15.8	15.302	0.075	Vega
WISE_W2	104.47	20.7	15.514	0.215	Vega
WISE_W3	203.4	97.36	12.955	0.520	Vega
WISE_W4	1217.19	626.77	9.567	0.559	Vega

Imaging data

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.857	8.999	9.118
{\rm log}_{10}({\rm SFR})	-2.239	-1.461	-0.782
{\rm log}_{10}({\rm sSFR})	-11.257	-10.498	-9.782
{\rm stellar\ age}	3.702	6.311	7.866

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.760	-1.312	-0.739
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.554	-0.618	0.147

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.197	0.492	0.823
\delta	-0.488	-0.067	0.254
\tau_1/\tau_2	0.696	1.040	1.385
Q_{PAH}	1.200	3.586	5.629
U_{min}	3.057	8.232	15.004
{\rm log}_{10}(\gamma_e)\,	-3.031	-1.737	-0.564

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.119	-1.278	-0.412
{\rm log}_{10}(\tau_{AGN})\,	0.880	1.404	1.860

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.222	-1.581	-1.076
0.03-0.10 Gyr	-2.565	-1.470	-0.700
0.10-0.33 Gyr	-2.037	-1.040	-0.405
0.33-1.09 Gyr	-1.604	-0.960	-0.520
1.09-3.59 Gyr	-1.426	-0.916	-0.656
3.59-11.83 Gyr	-1.579	-0.979	-0.750
11.83-13.15 Gyr	-1.814	-0.982	-0.462

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.631	9.705	9.792
{\rm log}_{10}({\rm SFR})	-0.932	-0.693	-0.463
{\rm log}_{10}({\rm sSFR})	-10.646	-10.388	-10.153
{\rm stellar\ age}	7.972	9.670	12.132

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.197	-0.949	-0.782
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.309	-0.091	0.011

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.039	0.090	0.184
\delta	-0.672	-0.246	0.097
\tau_1/\tau_2	0.819	1.241	1.648
Q_{PAH}	0.656	2.396	4.375
U_{min}	3.019	8.153	15.455
{\rm log}_{10}(\gamma_e)\,	-2.125	-1.229	-0.452

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.431	-3.600	-2.598
{\rm log}_{10}(\tau_{AGN})\,	1.026	1.563	1.959

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.995	-0.813	-0.668
0.03-0.10 Gyr	-0.995	-0.643	-0.363
0.10-0.33 Gyr	-1.542	-0.953	-0.618
0.33-1.09 Gyr	-2.193	-1.311	-0.865
1.09-3.59 Gyr	-2.316	-1.333	-0.820
3.59-11.83 Gyr	-1.325	-0.290	-0.110
11.83-13.15 Gyr	-0.153	0.493	0.901