2025sdz

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Information

Transient

Name: AT2025sdz
Right ascension: 23h53m57.37s
Declination: 18d23m50.68s
Discovery Date: July 23, 2025, 12:40 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.033

Host

Name:
Right ascension: 23h53m57.38s
Declination: 18d23m49.68s
Redshift: 0.069664
Photometric Redshift: 0.080

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	6.18
Cutout download	processed	31.43
Global aperture construction	processed	0.64
Local aperture photometry	processed	6.74
Global aperture photometry	processed	5.9
Validate local photometry	processed	0.03
Validate global photometry	processed	16.7
Host information	processed	0.15
Global host SED inference	processed	420.92
Local host SED inference	processed	505.34
Transient information	processed	0.0
Transient MWEBV	processed	0.11
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) = 23h53m57.37s, 18d23m50.68s
semi major axis, semi minor axis (arcsec) = 1.5, 1.5
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_g	139.16	3.1	18.541	0.024	AB
DES_g	169.34	0.79	18.328	0.005	AB
PanSTARRS_g	166.43	0.42	18.347	0.003	AB
SDSS_r	331.02	4.78	17.600	0.016	AB
PanSTARRS_r	370.86	0.59	17.477	0.002	AB
DES_r	418.05	1.64	17.347	0.004	AB
SDSS_i	534.76	6.1	17.080	0.012	AB
PanSTARRS_i	576.87	0.77	16.997	0.001	AB
PanSTARRS_z	814.56	1.37	16.623	0.002	AB
SDSS_z	727.78	7.98	16.745	0.012	AB
DES_z	770.27	4.6	16.683	0.006	AB
PanSTARRS_y	906.77	2.11	16.506	0.003	AB

Aperture details

RA, DEC (J2000) = 23h53m57.35s, 18d23m49.87s
semi major axis, semi minor axis (arcsec) = 10.76, 8.75
angle (degrees, anti-clockwise from east) = -143.25

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	25.94	5.13	20.365	0.215	AB
GALEX_NUV	31.74	2.61	20.146	0.089	AB
SDSS_u	63.26	9.86	19.397	0.169	AB
SDSS_g	681.08	7.46	16.817	0.012	AB
DES_g	758.17	1.81	16.701	0.003	AB
PanSTARRS_g	780.09	2.17	16.670	0.003	AB
SDSS_r	1531.1	11.2	15.937	0.008	AB
PanSTARRS_r	1561.46	2.84	15.916	0.002	AB
DES_r	1725.5	3.52	15.808	0.002	AB
SDSS_i	2282.92	14.2	15.504	0.007	AB
PanSTARRS_i	2300.85	3.99	15.495	0.002	AB
PanSTARRS_z	2962.26	7.87	15.221	0.003	AB
SDSS_z	3074.05	28.7	15.181	0.010	AB
DES_z	3103.47	9.55	15.170	0.003	AB
PanSTARRS_y	3533.9	12.96	15.029	0.004	AB
2MASS_J	4620.25	192.59	13.843	0.045	Vega
2MASS_H	5583.72	290.35	13.165	0.056	Vega
2MASS_K	4796.0	375.06	12.860	0.085	Vega
WISE_W2	1356.39	33.44	12.730	0.027	Vega
WISE_W3	1738.06	106.32	10.626	0.066	Vega
WISE_W4	1154.44	563.39	9.624	0.530	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})\,	10.205	10.332	10.470
{\rm log}_{10}({\rm SFR})	-2.450	-0.884	-0.062
{\rm log}_{10}({\rm sSFR})	-12.805	-11.252	-10.309
{\rm stellar\ age}	5.879	7.727	11.286

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.513	-0.875	-0.502
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.797	-1.265	-0.232

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.419	0.892	1.279
\delta	-0.835	-0.528	-0.132
\tau_1/\tau_2	0.567	0.964	1.370
Q_{PAH}	0.487	2.162	5.123
U_{min}	3.018	8.512	15.694
{\rm log}_{10}(\gamma_e)\,	-3.445	-2.326	-0.650

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.764	-1.562	0.024
{\rm log}_{10}(\tau_{AGN})\,	1.014	1.428	1.924

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.912	-1.056	-0.365
0.03-0.10 Gyr	-3.238	-0.950	0.012
0.10-0.33 Gyr	-2.903	-0.790	0.306
0.33-1.07 Gyr	-2.890	-0.722	0.298
1.07-3.52 Gyr	-2.306	-0.278	0.460
3.52-11.55 Gyr	-0.877	0.363	0.610
11.55-12.83 Gyr	-0.425	0.637	1.511

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.970	11.040	11.084
{\rm log}_{10}({\rm SFR})	-0.671	-0.301	0.001
{\rm log}_{10}({\rm sSFR})	-11.700	-11.322	-10.997
{\rm stellar\ age}	8.696	11.666	12.158

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.578	-0.429	-0.293
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.592	-0.901	-0.058

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.200	0.313	0.447
\delta	-0.208	0.011	0.168
\tau_1/\tau_2	0.316	0.707	1.173
Q_{PAH}	0.841	2.230	4.393
U_{min}	3.098	8.276	15.950
{\rm log}_{10}(\gamma_e)\,	-3.014	-2.024	-1.436

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.654	-3.941	-3.083
{\rm log}_{10}(\tau_{AGN})\,	1.041	1.577	1.941

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.523	-0.236	0.006
0.03-0.10 Gyr	-1.719	-0.392	0.056
0.10-0.33 Gyr	-2.700	-0.601	-0.028
0.33-1.07 Gyr	-3.180	-0.788	-0.074
1.07-3.52 Gyr	-2.892	-0.826	-0.043
3.52-11.55 Gyr	-1.233	0.310	1.156
11.55-12.83 Gyr	1.528	2.147	2.218