2025yfq

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Information

Transient

Name: AT2025yfq
Right ascension: 21h30m07.27s
Declination: 0d24m15.62s
Discovery Date: Sept. 20, 2025, 10:56 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.037

Host

Name:
Right ascension: 21h30m06.98s
Declination: 0d24m17.45s
Redshift: None
Photometric Redshift: 0.034

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	6.15
Cutout download	processed	22.9
Global aperture construction	processed	0.61
Local aperture photometry	processed	8.91
Global aperture photometry	processed	8.6
Validate local photometry	processed	0.03
Validate global photometry	processed	16.45
Host information	processed	0.11
Global host SED inference	processed	3256.16
Local host SED inference	processed	549.25
Transient information	processed	0.0
Transient MWEBV	processed	0.09
Host MWEBV	processed	0.04
Processing status	completed	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) = 21h30m07.27s, 0d24m15.62s
semi major axis, semi minor axis (arcsec) = 2.95, 2.95
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	51.79	3.26	19.614	0.068	AB
SDSS_g	101.28	2.72	18.886	0.029	AB
DES_g	94.92	0.31	18.957	0.004	AB
PanSTARRS_g	95.39	0.61	18.951	0.007	AB
SDSS_r	141.43	3.35	18.524	0.026	AB
PanSTARRS_r	145.26	0.75	18.495	0.006	AB
DES_r	145.14	0.45	18.496	0.003	AB
SDSS_i	193.95	4.18	18.181	0.023	AB
PanSTARRS_i	184.38	0.86	18.236	0.005	AB
PanSTARRS_z	203.67	2.16	18.128	0.011	AB
SDSS_z	228.64	12.0	18.002	0.057	AB
DES_z	190.7	4.52	18.199	0.026	AB
PanSTARRS_y	240.5	5.3	17.947	0.024	AB
2MASS_J	427.25	69.3	16.428	0.176	Vega
2MASS_H	363.66	114.86	16.131	0.343	Vega
2MASS_K	-0.74	123.06			Vega

Aperture details

RA, DEC (J2000) = 21h30m07.01s, 0d24m14.19s
semi major axis, semi minor axis (arcsec) = 17.79, 8.99
angle (degrees, anti-clockwise from east) = -12.83

Warning: possible contaminating objects in the global aperture

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	102.22	0.38	18.876	0.004	AB
GALEX_NUV	143.71	0.3	18.506	0.002	AB
SDSS_u	503.49	13.12	17.145	0.028	AB
SDSS_g	1023.44	9.02	16.375	0.010	AB
DES_g	1022.73	1.07	16.376	0.001	AB
PanSTARRS_g	1037.61	2.56	16.360	0.003	AB
SDSS_r	1713.17	12.22	15.816	0.008	AB
PanSTARRS_r	1731.04	3.16	15.804	0.002	AB
DES_r	1830.94	1.68	15.743	0.001	AB
SDSS_i	2312.15	15.52	15.490	0.007	AB
PanSTARRS_i	2276.43	3.64	15.507	0.002	AB
PanSTARRS_z	2636.76	9.22	15.347	0.004	AB
SDSS_z	2968.21	50.95	15.219	0.019	AB
DES_z	2617.68	17.15	15.355	0.007	AB
PanSTARRS_y	2966.24	22.6	15.219	0.008	AB
2MASS_J	2825.87	303.95	14.377	0.117	Vega
2MASS_H	2312.8	503.87	14.122	0.237	Vega
2MASS_K	2842.56	541.78	13.428	0.207	Vega
WISE_W1	1362.93	30.55	13.365	0.024	Vega
WISE_W2	775.72	35.55	13.337	0.050	Vega
WISE_W3	1784.06	142.24	10.597	0.087	Vega
WISE_W4	1120.5	625.4	9.656	0.606	Vega

Imaging data

Spectral Energy Distribution

Warning: possible contaminating objects in the global aperture

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.901	9.025	9.145
{\rm log}_{10}({\rm SFR})	-0.984	-0.325	0.202
{\rm log}_{10}({\rm sSFR})	-9.986	-9.349	-8.795
{\rm stellar\ age}	6.145	7.855	11.442

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.811	-1.520	-1.135
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.464	0.006	0.384

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.270	0.698	1.082
\delta	-0.436	-0.102	0.180
\tau_1/\tau_2	0.574	1.029	1.460
Q_{PAH}	0.482	1.867	4.202
U_{min}	2.992	9.017	16.849
{\rm log}_{10}(\gamma_e)\,	-3.488	-2.377	-1.047

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.809	-1.697	-0.354
{\rm log}_{10}(\tau_{AGN})\,	0.908	1.361	1.850

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.440	-1.668	-1.107
0.03-0.10 Gyr	-0.851	-0.172	0.361
0.10-0.33 Gyr	-3.169	-1.296	-0.580
0.33-1.09 Gyr	-4.914	-1.922	-1.099
1.09-3.62 Gyr	-4.178	-1.665	-0.996
3.62-11.97 Gyr	-2.506	-1.002	-0.769
11.97-13.30 Gyr	-1.636	-0.603	0.206

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.212	10.288	10.324
{\rm log}_{10}({\rm SFR})	-0.059	0.486	0.995
{\rm log}_{10}({\rm sSFR})	-10.384	-9.811	-9.315
{\rm stellar\ age}	9.822	12.340	12.565

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.822	-1.608	-1.383
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.490	0.291	0.451

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.249	0.335	0.442
\delta	-0.712	-0.520	-0.344
\tau_1/\tau_2	0.519	1.056	1.575
Q_{PAH}	0.164	0.562	1.316
U_{min}	3.280	9.762	17.812
{\rm log}_{10}(\gamma_e)\,	-3.717	-3.208	-2.433

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.334	-3.393	-2.602
{\rm log}_{10}(\tau_{AGN})\,	1.046	1.542	1.952

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-4.057	-2.990	-1.656
0.03-0.10 Gyr	0.103	0.649	1.158
0.10-0.33 Gyr	-4.141	-3.194	-1.897
0.33-1.09 Gyr	-7.338	-5.424	-3.055
1.09-3.62 Gyr	-5.552	-3.842	-1.991
3.62-11.97 Gyr	-2.813	-1.400	0.200
11.97-13.30 Gyr	1.047	1.401	1.447