2025yyk results

2025yyk results

Information

Transient

Name:	`AT2025yyk`
Right ascension:	`7h16m24.11s`
Declination:	`44d46m12.04s`
Discovery Date:	`Sept. 30, 2025, 10:54 a.m.`
Classification:	`None`
Redshift:	`None`
MW E(B-V):	`0.069`

Host

Name:
Right ascension:	`7h16m24.67s`
Declination:	`44d46m15.12s`
Redshift:	`None`
Photometric Redshift:	`0.055`

Cutout Download Report

Downloaded	Unavailable
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

Processing Status: completed

Task Name	Status	Time (s)
Cutout download	processed	1.57
Transient MWEBV	processed	0.09
Host match	processed	5.32
Host information	processed	0.11
Host MWEBV	processed	0.04
Global aperture construction	processed	0.65
Global aperture photometry	processed	4.0
Validate global photometry	processed	10.67
Global host SED inference	processed	525.87
Local aperture photometry	processed	3.81
Validate local photometry	processed	0.02
Local host SED inference	processed	433.89

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	7h16m24.11s, 44d46m12.04s
semi major axis, semi minor axis (arcsec):	1.86, 1.86
angle (degrees, anti-clockwise from east):	0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
PanSTARRS_g	25.41	0.45	20.388	0.019	AB
PanSTARRS_r	37.84	0.64	19.955	0.018	AB
PanSTARRS_i	66.47	0.52	19.343	0.008	AB
PanSTARRS_z	80.0	1.71	19.142	0.023	AB
PanSTARRS_y	91.38	3.41	18.998	0.040	AB

Aperture details

RA, DEC (J2000):	7h16m24.66s, 44d46m15.57s
semi major axis, semi minor axis (arcsec):	21.02, 13.36
angle (degrees, anti-clockwise from east):	-124.67

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	56.43	5.34	19.521	0.103	AB
GALEX_NUV	63.28	4.46	19.397	0.076	AB
PanSTARRS_g	982.06	4.01	16.420	0.004	AB
PanSTARRS_r	1790.49	5.69	15.768	0.003	AB
PanSTARRS_i	2686.42	4.61	15.327	0.002	AB
PanSTARRS_z	3194.63	15.28	15.139	0.005	AB
2MASS_H	5406.48	618.11	13.200	0.124	Vega
WISE_W4	3549.54	969.4	8.405	0.297	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.839	9.091	9.265
{\rm log}_{10}({\rm SFR})	-0.938	-0.468	-0.065
{\rm log}_{10}({\rm sSFR})	-10.132	-9.593	-8.958
{\rm stellar\ age}	4.236	6.735	8.398

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.216	-0.546	-0.141
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.543	-1.012	-0.512

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.828	1.241	1.605
\delta	-0.257	-0.062	0.200
\tau_1/\tau_2	0.663	1.006	1.354
Q_{PAH}	0.466	1.842	4.331
U_{min}	2.862	7.555	14.807
{\rm log}_{10}(\gamma_e)\,	-3.354	-2.142	-1.016

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.057	-2.341	-0.598
{\rm log}_{10}(\tau_{AGN})\,	0.945	1.418	1.916

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.694	-0.324	-0.056
0.03-0.10 Gyr	-1.382	-0.605	-0.033
0.10-0.33 Gyr	-1.909	-1.001	-0.483
0.33-1.08 Gyr	-2.101	-1.124	-0.621
1.08-3.56 Gyr	-1.883	-1.042	-0.691
3.56-11.72 Gyr	-1.544	-0.885	-0.599
11.72-13.02 Gyr	-1.683	-0.860	-0.196

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.714	10.785	10.870
{\rm log}_{10}({\rm SFR})	-0.215	0.125	0.454
{\rm log}_{10}({\rm sSFR})	-10.988	-10.671	-10.362
{\rm stellar\ age}	7.258	8.099	11.123

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.788	-0.472	-0.062
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.661	-0.108	0.254

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.188	0.411	0.655
\delta	-0.117	0.192	0.345
\tau_1/\tau_2	0.459	0.883	1.311
Q_{PAH}	0.429	1.789	3.901
U_{min}	2.239	6.426	13.250
{\rm log}_{10}(\gamma_e)\,	-3.494	-2.736	-1.731

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.038	-1.813	-1.289
{\rm log}_{10}(\tau_{AGN})\,	0.920	1.215	1.779

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.154	0.171	0.393
0.03-0.10 Gyr	-0.629	0.036	0.537
0.10-0.33 Gyr	-1.152	-0.215	0.286
0.33-1.08 Gyr	-1.268	-0.163	0.303
1.08-3.56 Gyr	-1.198	0.195	0.725
3.56-11.72 Gyr	0.374	0.914	1.043
11.72-13.02 Gyr	0.560	1.135	1.887