2025ykf

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Information

Transient

Name: AT2025ykf
Right ascension: 1h10m08.81s
Declination: -16d51m08.64s
Discovery Date: Aug. 25, 2025, 10:33 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.019

Host

Name: 4167
Right ascension: 1h10m08.98s
Declination: -16d51m09.69s
Redshift: 0.034588
Photometric Redshift:

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	6.59
Transient MWEBV	processed	0.04
Host match	processed	4.17
Host information	processed	0.08
Host MWEBV	processed	0.04
Global aperture construction	processed	0.66
Global aperture photometry	processed	4.9
Validate global photometry	processed	13.91
Global host SED inference	processed	386.09
Local aperture photometry	processed	5.38
Validate local photometry	processed	0.02
Local host SED inference	processed	564.26

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) = 1h10m08.81s, -16d51m08.64s
semi major axis, semi minor axis (arcsec) = 2.91, 2.91
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	1202.99	1.02	16.199	0.001	AB
PanSTARRS_g	1291.71	1.16	16.122	0.001	AB
PanSTARRS_r	2884.67	1.8	15.250	0.001	AB
DES_r	2868.05	1.87	15.256	0.001	AB
PanSTARRS_i	3898.17	1.75	14.923	0.000	AB
PanSTARRS_z	5321.53	2.83	14.585	0.001	AB
DES_z	5611.32	6.8	14.527	0.001	AB
PanSTARRS_y	6922.79	4.93	14.299	0.001	AB
2MASS_J	8299.51	88.19	13.207	0.012	Vega
2MASS_H	11523.92	132.13	12.378	0.012	Vega
2MASS_K	12035.21	150.45	11.861	0.014	Vega

Aperture details

RA, DEC (J2000) = 1h10m08.94s, -16d51m09.52s
semi major axis, semi minor axis (arcsec) = 15.19, 13.57
angle (degrees, anti-clockwise from east) = -28.43

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	215.58	2.74	18.066	0.014	AB
GALEX_NUV	470.12	2.31	17.219	0.005	AB
DES_g	5781.05	2.33	14.495	0.000	AB
PanSTARRS_g	5712.96	4.14	14.508	0.001	AB
PanSTARRS_r	10560.24	5.81	13.841	0.001	AB
DES_r	11205.98	3.85	13.776	0.000	AB
PanSTARRS_i	13487.94	6.56	13.575	0.001	AB
PanSTARRS_z	16766.53	10.21	13.339	0.001	AB
DES_z	18441.45	12.69	13.236	0.001	AB
PanSTARRS_y	21294.82	22.61	13.079	0.001	AB
2MASS_J	29409.9	416.85	11.834	0.015	Vega
2MASS_H	37801.27	639.65	11.089	0.018	Vega
2MASS_K	35631.31	733.15	10.683	0.022	Vega
WISE_W1	23831.55	93.4	10.258	0.004	Vega
WISE_W2	19178.41	110.55	9.854	0.006	Vega
WISE_W3	170253.66	436.6	5.648	0.003	Vega
WISE_W4	416857.34	5287.67	3.230	0.014	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})\,	10.311	10.458	10.569
{\rm log}_{10}({\rm SFR})	-0.060	0.543	1.076
{\rm log}_{10}({\rm sSFR})	-10.584	-9.868	-9.307
{\rm stellar\ age}	4.754	7.132	8.756

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.853	-0.287	-0.064
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.418	0.216	0.387

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.576	0.985	1.596
\delta	-0.869	-0.584	-0.198
\tau_1/\tau_2	0.615	1.007	1.424
Q_{PAH}	0.183	1.069	2.811
U_{min}	2.697	7.712	14.619
{\rm log}_{10}(\gamma_e)\,	-2.965	-1.874	-0.935

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.676	-0.349	0.114
{\rm log}_{10}(\tau_{AGN})\,	0.819	1.574	1.863

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.185	0.578	1.065
0.03-0.10 Gyr	-0.355	0.450	1.099
0.10-0.33 Gyr	-0.414	0.226	0.831
0.33-1.09 Gyr	-0.354	0.206	0.699
1.09-3.62 Gyr	-0.132	0.415	0.714
3.62-11.96 Gyr	-0.047	0.505	0.705
11.96-13.29 Gyr	-0.132	0.587	1.188

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.544	10.763	10.929
{\rm log}_{10}({\rm SFR})	1.227	1.583	1.857
{\rm log}_{10}({\rm sSFR})	-9.694	-9.183	-8.721
{\rm stellar\ age}	2.438	5.076	6.899

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.867	-0.408	-0.167
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.884	-1.669	0.193

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	1.034	1.309	1.540
\delta	-0.152	-0.071	0.076
\tau_1/\tau_2	0.599	0.910	1.215
Q_{PAH}	0.290	0.624	1.135
U_{min}	3.049	8.084	14.517
{\rm log}_{10}(\gamma_e)\,	-3.162	-2.322	-1.771

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.693	-1.874	-1.322
{\rm log}_{10}(\tau_{AGN})\,	1.303	1.776	2.029

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	1.346	1.663	1.873
0.03-0.10 Gyr	0.992	1.542	1.888
0.10-0.33 Gyr	0.696	1.213	1.597
0.33-1.09 Gyr	0.402	0.919	1.463
1.09-3.62 Gyr	0.310	0.839	1.213
3.62-11.96 Gyr	-0.164	0.589	0.944
11.96-13.29 Gyr	-0.355	0.567	1.152