2025osy

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Information

Transient

Name: AT2025osy
Right ascension: 15h43m41.51s
Declination: 13d04m38.47s
Discovery Date: June 18, 2025, 9:41 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.044

Host

Name:
Right ascension: 15h43m41.69s
Declination: 13d04m40.51s
Redshift: 0.110712
Photometric Redshift:

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	26.15
Transient MWEBV	processed	0.11
Host match	processed	6.95
Host information	processed	0.13
Host MWEBV	processed	0.05
Global aperture construction	processed	0.23
Global aperture photometry	processed	2.83
Validate global photometry	processed	4.6
Global host SED inference	processed	427.99
Local aperture photometry	processed	3.27
Validate local photometry	processed	0.02
Local host SED inference	not enough filters	17.65

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) = 15h43m41.51s, 13d04m38.47s
semi major axis, semi minor axis (arcsec) = 0.99, 0.99
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
DES_z	21.55	0.98	20.566	0.049	AB

Aperture details

RA, DEC (J2000) = 15h43m41.68s, 13d04m40.42s
semi major axis, semi minor axis (arcsec) = 5.34, 5.24
angle (degrees, anti-clockwise from east) = -71.3

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	112.84	5.55	18.769	0.053	AB
SDSS_g	306.36	4.77	17.684	0.017	AB
DES_g	321.3	1.0	17.633	0.003	AB
SDSS_r	492.92	6.23	17.168	0.014	AB
DES_r	538.99	2.19	17.071	0.004	AB
SDSS_i	685.85	7.92	16.809	0.013	AB
SDSS_z	834.43	23.16	16.597	0.030	AB
DES_z	830.17	6.01	16.602	0.008	AB
2MASS_J	946.84	107.21	15.564	0.123	Vega
2MASS_H	1176.44	181.92	14.856	0.168	Vega
2MASS_K	1035.9	211.33	14.524	0.221	Vega
WISE_W1	561.11	15.88	14.328	0.031	Vega
WISE_W2	419.61	17.48	14.004	0.045	Vega
WISE_W3	1731.05	69.32	10.630	0.043	Vega
WISE_W4	1944.69	498.9	9.058	0.279	Vega

Imaging data

Click the image to load the interactive plot.

Spectral Energy Distribution

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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})\,	10.316	10.438	10.542
{\rm log}_{10}({\rm SFR})	0.223	0.919	1.345
{\rm log}_{10}({\rm sSFR})	-10.190	-9.553	-9.033
{\rm stellar\ age}	4.351	6.107	7.651

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.766	-0.392	-0.141
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.443	-0.257	0.223

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.137	0.236	0.407
\delta	-0.912	-0.701	-0.352
\tau_1/\tau_2	0.588	0.965	1.384
Q_{PAH}	0.418	1.344	3.221
U_{min}	2.141	6.689	13.830
{\rm log}_{10}(\gamma_e)\,	-3.376	-2.131	-0.961

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.278	-1.967	-1.353
{\rm log}_{10}(\tau_{AGN})\,	1.152	1.573	1.920

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.489	0.196	0.538
0.03-0.10 Gyr	0.235	1.046	1.492
0.10-0.32 Gyr	-0.066	0.698	1.044
0.32-1.05 Gyr	-0.476	0.392	0.772
1.05-3.42 Gyr	-0.204	0.435	0.771
3.42-11.09 Gyr	-0.061	0.470	0.674
11.09-12.32 Gyr	-0.280	0.499	1.116