2025yfj

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Information

Transient

Name: AT2025yfj
Right ascension: 9h03m55.86s
Declination: 18d29m41.63s
Discovery Date: Sept. 20, 2025, 12:23 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.031

Host

Name:
Right ascension: 9h03m55.86s
Declination: 18d29m41.40s
Redshift: None
Photometric Redshift: 0.092

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	20.31
Transient MWEBV	processed	0.11
Host match	processed	5.68
Host information	processed	0.05
Host MWEBV	processed	0.04
Global aperture construction	processed	0.65
Global aperture photometry	processed	7.27
Validate global photometry	processed	18.36
Global host SED inference	processed	424.11
Local aperture photometry	processed	7.09
Validate local photometry	processed	0.03
Local host SED inference	processed	517.62

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) = 9h03m55.86s, 18d29m41.63s
semi major axis, semi minor axis (arcsec) = 1.16, 1.16
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	149.1	0.82	18.466	0.006	AB
DES_r	195.01	1.32	18.175	0.007	AB
PanSTARRS_i	273.31	0.44	17.808	0.002	AB
PanSTARRS_z	331.63	0.84	17.598	0.003	AB
DES_z	325.61	3.53	17.618	0.012	AB
PanSTARRS_y	384.6	2.12	17.437	0.006	AB

Aperture details

RA, DEC (J2000) = 9h03m55.86s, 18d29m41.53s
semi major axis, semi minor axis (arcsec) = 6.46, 3.84
angle (degrees, anti-clockwise from east) = -50.62

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	43.94	1.7	19.793	0.042	AB
GALEX_NUV	86.12	1.38	19.062	0.017	AB
SDSS_u	248.65	5.16	17.911	0.023	AB
SDSS_g	357.48	5.07	17.517	0.015	AB
DES_g	279.9	1.18	17.782	0.005	AB
PanSTARRS_g	286.69	1.08	17.756	0.004	AB
SDSS_r	569.5	6.53	17.011	0.012	AB
PanSTARRS_r	480.27	1.41	17.196	0.003	AB
DES_r	474.47	2.15	17.209	0.005	AB
SDSS_i	838.37	8.27	16.591	0.011	AB
PanSTARRS_i	753.09	1.47	16.708	0.002	AB
PanSTARRS_z	873.45	3.09	16.547	0.004	AB
SDSS_z	1012.94	15.05	16.386	0.016	AB
DES_z	803.49	5.77	16.638	0.008	AB
PanSTARRS_y	1056.07	8.74	16.341	0.009	AB
2MASS_J	1336.08	116.13	15.191	0.094	Vega
2MASS_H	1656.88	161.76	14.484	0.106	Vega
2MASS_K	1905.34	185.96	13.862	0.106	Vega
WISE_W1	1275.34	21.63	13.437	0.018	Vega
WISE_W2	1345.1	29.96	12.739	0.024	Vega
WISE_W3	1772.0	92.92	10.605	0.057	Vega
WISE_W4	2326.84	628.15	8.863	0.293	Vega

Imaging data

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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})\,	9.721	9.928	10.026
{\rm log}_{10}({\rm SFR})	-0.145	0.417	0.920
{\rm log}_{10}({\rm sSFR})	-10.119	-9.533	-8.858
{\rm stellar\ age}	1.970	5.745	7.289

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.340	-0.065	0.101
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.984	-0.666	-0.397

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.183	0.517	0.962
\delta	-0.686	-0.193	0.202
\tau_1/\tau_2	0.548	0.941	1.383
Q_{PAH}	0.655	2.168	4.512
U_{min}	2.966	8.104	15.472
{\rm log}_{10}(\gamma_e)\,	-3.123	-1.815	-0.695

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.990	-1.889	-0.247
{\rm log}_{10}(\tau_{AGN})\,	0.995	1.548	1.958

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.169	0.128	0.545
0.03-0.10 Gyr	-0.268	0.463	1.039
0.10-0.33 Gyr	-0.478	0.177	0.740
0.33-1.06 Gyr	-0.671	0.048	0.492
1.06-3.46 Gyr	-1.089	-0.097	0.239
3.46-11.29 Gyr	-1.357	-0.108	0.145
11.29-12.55 Gyr	-1.336	-0.047	0.469

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.513	10.578	10.658
{\rm log}_{10}({\rm SFR})	0.893	1.128	1.383
{\rm log}_{10}({\rm sSFR})	-9.721	-9.458	-9.188
{\rm stellar\ age}	7.183	8.312	11.178

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.395	-0.200	-0.049
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	0.272	0.396	0.470

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.342	0.516	0.718
\delta	-0.089	0.081	0.197
\tau_1/\tau_2	0.507	0.838	1.285
Q_{PAH}	0.178	0.524	1.061
U_{min}	3.100	7.565	14.262
{\rm log}_{10}(\gamma_e)\,	-3.601	-3.020	-2.343

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.312	-1.181	-1.066
{\rm log}_{10}(\tau_{AGN})\,	0.778	0.869	0.997

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.380	0.643	0.885
0.03-0.10 Gyr	0.999	1.241	1.505
0.10-0.33 Gyr	-1.788	-0.328	0.295
0.33-1.06 Gyr	-4.029	-1.173	-0.329
1.06-3.46 Gyr	-2.107	-0.421	0.229
3.46-11.29 Gyr	-0.279	0.669	0.817
11.29-12.55 Gyr	0.410	1.184	1.748