2025yiy

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Information

Transient

Name: AT2025yiy
Right ascension: 1h25m19.19s
Declination: 21d07m23.58s
Discovery Date: Sept. 17, 2025, 10:12 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.046

Host

Name:
Right ascension: 1h25m19.07s
Declination: 21d07m22.95s
Redshift: None
Photometric Redshift: 0.115

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	18.02
Transient MWEBV	processed	0.07
Host match	processed	5.75
Host information	processed	0.16
Host MWEBV	processed	0.06
Global aperture construction	processed	2.72
Global aperture photometry	processed	5.88
Validate global photometry	processed	17.11
Global host SED inference	processed	485.68
Local aperture photometry	processed	6.23
Validate local photometry	processed	0.03
Local host SED inference	not enough filters	21.63

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) = 1h25m19.19s, 21d07m23.58s
semi major axis, semi minor axis (arcsec) = 0.96, 0.96
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	3.77	0.37	22.458	0.105	AB

Aperture details

RA, DEC (J2000) = 1h25m19.05s, 21d07m23.28s
semi major axis, semi minor axis (arcsec) = 5.02, 3.93
angle (degrees, anti-clockwise from east) = -88.73

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	6.87	1.74	21.808	0.275	AB
GALEX_NUV	6.21	1.42	21.918	0.249	AB
SDSS_u	-5.38	4.86			AB
SDSS_g	23.03	1.92	20.494	0.091	AB
DES_g	21.33	0.31	20.578	0.016	AB
PanSTARRS_g	21.22	1.13	20.583	0.058	AB
SDSS_r	24.73	2.52	20.417	0.111	AB
PanSTARRS_r	30.79	1.36	20.179	0.048	AB
DES_r	30.2	0.52	20.200	0.019	AB
SDSS_i	33.53	3.78	20.087	0.122	AB
PanSTARRS_i	34.5	1.73	20.055	0.054	AB
PanSTARRS_z	37.58	3.26	19.963	0.094	AB
SDSS_z	43.88	11.08	19.794	0.274	AB
DES_z	37.9	1.33	19.953	0.038	AB
PanSTARRS_y	20.21	6.99	20.636	0.375	AB
2MASS_J	-25.55	98.37			Vega
2MASS_H	237.68	165.11	16.592	0.754	Vega
2MASS_K	-34.32	171.8			Vega
WISE_W1	20.44	9.04	17.925	0.480	Vega
WISE_W2	13.72	12.94	17.717	1.024	Vega
WISE_W3	-48.01	48.19			Vega
WISE_W4	-162.92	378.75			Vega

Imaging data

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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})\,	8.799	9.103	9.272
{\rm log}_{10}({\rm SFR})	-0.537	0.022	0.526
{\rm log}_{10}({\rm sSFR})	-9.620	-9.053	-8.409
{\rm stellar\ age}	0.485	4.051	6.073

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.743	-1.255	-0.332
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.479	-0.681	0.065

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.190	0.676	1.187
\delta	0.009	0.242	0.351
\tau_1/\tau_2	0.663	1.139	1.598
Q_{PAH}	1.939	4.012	5.604
U_{min}	3.667	9.678	17.122
{\rm log}_{10}(\gamma_e)\,	-2.840	-1.740	-0.703

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.291	-1.090	-0.229
{\rm log}_{10}(\tau_{AGN})\,	1.066	1.538	1.883

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.751	-0.830	-0.334
0.03-0.10 Gyr	-0.454	0.141	0.674
0.10-0.32 Gyr	-0.949	-0.093	0.429
0.32-1.05 Gyr	-2.334	-0.749	-0.291
1.05-3.41 Gyr	-3.497	-1.042	-0.587
3.41-11.05 Gyr	-3.795	-1.215	-0.748
11.05-12.28 Gyr	-3.926	-1.160	-0.478