2025zsy

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Information

Transient

Name: AT2025zsy
Right ascension: 16h37m19.37s
Declination: 34d20m57.85s
Discovery Date: Oct. 10, 2025, 5:14 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.019

Host

Name: J163718.90+342058.5
Right ascension: 16h37m18.91s
Declination: 34d20m58.53s
Redshift: None
Photometric Redshift: 0.097

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	4.17
Cutout download	processed	17.01
Global aperture construction	processed	0.64
Local aperture photometry	processed	5.85
Global aperture photometry	processed	5.91
Validate local photometry	processed	0.02
Validate global photometry	processed	16.74
Host information	processed	0.04
Global host SED inference	processed	480.3
Local host SED inference	failed	769.13
Transient information	processed	0.0
Transient MWEBV	processed	0.09
Host MWEBV	processed	0.06
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) = 16h37m19.37s, 34d20m57.85s
semi major axis, semi minor axis (arcsec) = 1.11, 1.11
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
PanSTARRS_i	1.4	0.27	23.538	0.209	AB
PanSTARRS_z	1.06	0.81	23.832	0.827	AB
DES_z	1.38	0.36	23.550	0.282	AB
PanSTARRS_y	6.39	2.03	21.886	0.345	AB

Aperture details

RA, DEC (J2000) = 16h37m18.90s, 34d20m58.78s
semi major axis, semi minor axis (arcsec) = 5.96, 4.39
angle (degrees, anti-clockwise from east) = -160.33

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	1.25	0.44	23.654	0.384	AB
GALEX_NUV	3.0	0.44	22.707	0.159	AB
SDSS_u	29.4	3.94	20.229	0.146	AB
SDSS_g	142.89	3.33	18.512	0.025	AB
DES_g	139.03	0.76	18.542	0.006	AB
PanSTARRS_g	152.36	1.03	18.443	0.007	AB
SDSS_r	315.94	5.06	17.651	0.017	AB
PanSTARRS_r	310.43	1.38	17.670	0.005	AB
SDSS_i	447.43	6.61	17.273	0.016	AB
PanSTARRS_i	445.04	1.26	17.279	0.003	AB
PanSTARRS_z	569.15	3.73	17.012	0.007	AB
SDSS_z	636.57	18.24	16.890	0.031	AB
DES_z	591.88	3.94	16.969	0.007	AB
PanSTARRS_y	653.52	9.24	16.862	0.015	AB
2MASS_J	936.0	123.33	15.577	0.143	Vega
2MASS_H	1022.99	203.79	15.008	0.216	Vega
2MASS_K	1427.62	219.87	14.176	0.167	Vega
WISE_W1	364.34	9.98	14.797	0.030	Vega
WISE_W2	212.15	10.93	14.744	0.056	Vega
WISE_W3	161.26	52.19	13.207	0.351	Vega
WISE_W4	144.11	370.04	11.883	2.788	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})\,	10.431	10.502	10.603
{\rm log}_{10}({\rm SFR})	-2.521	-0.997	-0.288
{\rm log}_{10}({\rm sSFR})	-12.964	-11.518	-10.820
{\rm stellar\ age}	7.379	9.642	11.831

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.254	-0.968	-0.761
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.526	-0.641	0.160

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.235	0.371	0.512
\delta	-0.857	-0.617	-0.288
\tau_1/\tau_2	0.561	0.989	1.476
Q_{PAH}	0.611	1.658	3.336
U_{min}	3.297	9.284	17.063
{\rm log}_{10}(\gamma_e)\,	-2.736	-1.917	-0.926

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.338	-3.153	-2.136
{\rm log}_{10}(\tau_{AGN})\,	1.020	1.495	1.890

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-4.377	-1.817	-0.894
0.03-0.10 Gyr	-3.055	-0.953	-0.151
0.10-0.33 Gyr	-4.035	-1.383	-0.264
0.33-1.06 Gyr	-5.242	-2.008	-0.556
1.06-3.45 Gyr	-3.804	-1.441	-0.108
3.45-11.24 Gyr	-1.727	0.478	0.755
11.24-12.49 Gyr	0.262	1.372	1.755