2025oyg

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Information

Transient

Name: AT2025oyg
Right ascension: 23h22m23.45s
Declination: -2d25m23.81s
Discovery Date: June 20, 2025, 11:01 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.040

Host

Name:
Right ascension: 23h22m23.45s
Declination: -2d25m22.77s
Redshift: None
Photometric Redshift: 0.118

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	6.44
Cutout download	processed	32.18
Global aperture construction	processed	0.66
Local aperture photometry	processed	6.05
Global aperture photometry	processed	5.38
Validate local photometry	processed	0.02
Validate global photometry	processed	16.03
Host information	processed	0.14
Global host SED inference	processed	420.38
Local host SED inference	not enough filters	23.84
Transient information	processed	0.0
Transient MWEBV	processed	0.04
Host MWEBV	processed	0.04
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) = 23h22m23.45s, -2d25m23.81s
semi major axis, semi minor axis (arcsec) = 0.94, 0.94
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	8.26	0.39	21.607	0.051	AB

Aperture details

RA, DEC (J2000) = 23h22m23.42s, -2d25m22.71s
semi major axis, semi minor axis (arcsec) = 2.95, 2.43
angle (degrees, anti-clockwise from east) = -139.83

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	2.78	0.39	22.790	0.154	AB
GALEX_NUV	3.98	0.35	22.400	0.095	AB
SDSS_u	8.53	2.84	21.573	0.362	AB
SDSS_g	19.47	1.41	20.677	0.079	AB
DES_g	16.51	0.41	20.855	0.027	AB
PanSTARRS_g	16.74	0.62	20.841	0.040	AB
SDSS_r	24.2	1.89	20.441	0.085	AB
PanSTARRS_r	26.72	0.87	20.333	0.036	AB
SDSS_i	34.33	2.78	20.061	0.088	AB
PanSTARRS_i	30.63	0.9	20.185	0.032	AB
PanSTARRS_z	32.81	1.59	20.110	0.053	AB
SDSS_z	49.17	10.88	19.671	0.240	AB
DES_z	34.49	0.85	20.056	0.027	AB
PanSTARRS_y	22.11	4.37	20.538	0.215	AB
2MASS_J	34.02	77.65	19.176	2.478	Vega
2MASS_H	37.37	126.67	18.601	3.680	Vega
2MASS_K	69.08	145.79	17.464	2.291	Vega
WISE_W1	12.67	6.89	18.444	0.591	Vega
WISE_W2	13.51	8.66	17.735	0.696	Vega
WISE_W3	-68.4	63.19			Vega
WISE_W4	-87.71	414.69			Vega

Imaging data

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.889	9.098	9.236
{\rm log}_{10}({\rm SFR})	-0.734	-0.312	0.087
{\rm log}_{10}({\rm sSFR})	-9.891	-9.424	-8.876
{\rm stellar\ age}	1.903	4.744	6.347

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.655	-1.105	-0.312
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.204	-0.713	-0.215

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.184	0.555	0.953
\delta	-0.149	0.159	0.314
\tau_1/\tau_2	0.788	1.160	1.532
Q_{PAH}	2.067	4.313	5.860
U_{min}	3.168	8.123	14.719
{\rm log}_{10}(\gamma_e)\,	-2.764	-1.638	-0.686

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.431	-1.220	-0.221
{\rm log}_{10}(\tau_{AGN})\,	0.985	1.430	1.865

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.880	-0.461	-0.123
0.03-0.10 Gyr	-0.757	-0.283	0.172
0.10-0.32 Gyr	-0.690	-0.208	0.228
0.32-1.05 Gyr	-1.107	-0.602	-0.238
1.05-3.40 Gyr	-1.434	-0.818	-0.557
3.40-11.01 Gyr	-1.842	-0.973	-0.686
11.01-12.23 Gyr	-2.039	-1.012	-0.495