2025affu

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Information

Transient

Name: AT2025affu
Right ascension: 11h23m42.32s
Declination: 17d09m16.76s
Discovery Date: Nov. 19, 2025, 5:39 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.019

Host

Name:
Right ascension: 11h23m42.21s
Declination: 17d09m16.28s
Redshift: None
Photometric Redshift: 0.079

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	19.42
Transient MWEBV	processed	0.04
Host match	processed	5.69
Host information	processed	0.14
Host MWEBV	processed	0.04
Global aperture construction	processed	1.4
Global aperture photometry	processed	6.78
Validate global photometry	processed	72.69
Global host SED inference	processed	492.89
Local aperture photometry	processed	6.75
Validate local photometry	processed	0.03
Local host SED inference	processed	441.73

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) = 11h23m42.32s, 17d09m16.76s
semi major axis, semi minor axis (arcsec) = 1.34, 1.34
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
DES_g	12.91	0.23	21.123	0.020	AB
PanSTARRS_g	12.15	0.34	21.189	0.031	AB
SDSS_r	23.12	1.44	20.490	0.067	AB
PanSTARRS_r	22.24	0.4	20.532	0.019	AB
DES_r	25.68	0.49	20.376	0.021	AB
SDSS_i	32.14	1.89	20.133	0.064	AB
PanSTARRS_i	29.36	0.53	20.231	0.020	AB
PanSTARRS_z	35.59	0.83	20.022	0.025	AB
SDSS_z	37.28	6.08	19.971	0.177	AB
DES_z	41.26	1.61	19.861	0.042	AB
PanSTARRS_y	38.28	2.33	19.942	0.066	AB

Aperture details

RA, DEC (J2000) = 11h23m42.21s, 17d09m16.38s
semi major axis, semi minor axis (arcsec) = 5.64, 3.58
angle (degrees, anti-clockwise from east) = -148.02

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	11.15	3.37	21.282	0.328	AB
GALEX_NUV	23.05	3.03	20.494	0.143	AB
SDSS_u	29.88	4.88	20.211	0.177	AB
SDSS_g	72.58	2.84	19.248	0.042	AB
DES_g	71.25	0.62	19.268	0.009	AB
PanSTARRS_g	79.01	1.15	19.156	0.016	AB
SDSS_r	125.21	3.8	18.656	0.033	AB
PanSTARRS_r	131.79	1.32	18.600	0.011	AB
DES_r	133.52	1.24	18.586	0.010	AB
SDSS_i	176.65	5.3	18.282	0.033	AB
PanSTARRS_i	157.61	1.77	18.406	0.012	AB
PanSTARRS_z	187.07	2.73	18.220	0.016	AB
SDSS_z	179.15	20.11	18.267	0.122	AB
DES_z	200.1	3.85	18.147	0.021	AB
PanSTARRS_y	218.41	7.73	18.052	0.038	AB
2MASS_J	127.77	94.99	17.739	0.807	Vega
2MASS_H	183.19	184.28	16.875	1.092	Vega
2MASS_K	489.81	162.26	15.337	0.360	Vega
WISE_W1	99.16	12.19	16.210	0.134	Vega
WISE_W2	54.43	14.63	16.221	0.292	Vega
WISE_W3	108.98	69.66	13.633	0.694	Vega
WISE_W4	342.72	488.04	10.943	1.546	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

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.886	8.991	9.095
{\rm log}_{10}({\rm SFR})	-2.280	-1.653	-0.831
{\rm log}_{10}({\rm sSFR})	-11.346	-10.658	-9.770
{\rm stellar\ age}	5.305	6.889	8.106

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.314	-0.701	-0.314
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.626	-0.470	0.299

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.146	0.439	1.001
\delta	-0.483	-0.060	0.256
\tau_1/\tau_2	0.670	1.033	1.377
Q_{PAH}	1.184	3.134	5.565
U_{min}	2.908	7.927	15.021
{\rm log}_{10}(\gamma_e)\,	-2.739	-1.651	-0.544

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.394	-0.107	0.226
{\rm log}_{10}(\tau_{AGN})\,	1.107	1.509	1.933

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.652	-1.882	-1.263
0.03-0.10 Gyr	-2.403	-1.627	-0.742
0.10-0.33 Gyr	-2.186	-1.443	-0.740
0.33-1.07 Gyr	-2.132	-1.355	-0.854
1.07-3.50 Gyr	-1.751	-1.041	-0.773
3.50-11.44 Gyr	-1.281	-0.883	-0.714
11.44-12.71 Gyr	-1.570	-0.910	-0.356

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.691	9.745	9.836
{\rm log}_{10}({\rm SFR})	-0.459	-0.236	0.038
{\rm log}_{10}({\rm sSFR})	-10.223	-9.980	-9.726
{\rm stellar\ age}	7.477	8.836	11.558

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.715	-0.380	-0.212
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	0.053	0.194	0.323

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.040	0.107	0.265
\delta	-0.517	-0.059	0.251
\tau_1/\tau_2	0.661	1.113	1.573
Q_{PAH}	1.515	3.285	5.155
U_{min}	2.978	8.650	15.891
{\rm log}_{10}(\gamma_e)\,	-2.162	-1.002	-0.247

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.286	-3.248	-1.987
{\rm log}_{10}(\tau_{AGN})\,	1.051	1.594	1.953

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.810	-0.588	-0.412
0.03-0.10 Gyr	-0.402	-0.132	0.168
0.10-0.33 Gyr	-1.710	-0.821	-0.464
0.33-1.07 Gyr	-2.427	-1.286	-0.836
1.07-3.50 Gyr	-2.283	-1.180	-0.658
3.50-11.44 Gyr	-1.129	-0.178	-0.030
11.44-12.71 Gyr	-0.250	0.435	0.948