2025hky results

2025hky results

Information

Transient

Name:	`AT2025hky`
Right ascension:	`23h32m46.24s`
Declination:	`-31d46m31.99s`
Discovery Date:	`April 15, 2025, 9:23 a.m.`
Classification:	`None`
Redshift:	`None`
MW E(B-V):	`0.015`

Host

Name:	`2025hky`
Right ascension:	`23h32m45.92s`
Declination:	`-31d46m34.88s`
Redshift:	`0.052303`
Photometric Redshift:	`None`

Cutout Download Report

Downloaded	Unavailable
2MASS_H 2MASS_J 2MASS_K WISE_W1 WISE_W2 WISE_W3 WISE_W4 GALEX_NUV GALEX_FUV PanSTARRS_i	PanSTARRS_g PanSTARRS_r 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	3.5
Transient MWEBV	processed	0.12
Host match	processed	0.98
Host information	processed	0.1
Host MWEBV	processed	0.04
Global aperture construction	processed	0.68
Global aperture photometry	processed	1.79
Validate global photometry	processed	6.04
Global host SED inference	processed	524.72
Local aperture photometry	processed	1.61
Validate local photometry	processed	0.01
Local host SED inference	processed	655.47

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	23h32m46.24s, -31d46m31.99s
semi major axis, semi minor axis (arcsec):	1.96, 1.96
angle (degrees, anti-clockwise from east):	0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
PanSTARRS_i	166.18	1.92	18.349	0.013	AB

Aperture details

RA, DEC (J2000):	23h32m45.90s, -31d46m34.96s
semi major axis, semi minor axis (arcsec):	21.81, 15.27
angle (degrees, anti-clockwise from east):	-50.07

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	356.02	13.81	17.521	0.042	AB
GALEX_NUV	482.49	7.57	17.191	0.017	AB
2MASS_J	9223.16	484.48	13.093	0.057	Vega
2MASS_H	8717.2	696.99	12.681	0.087	Vega
2MASS_K	9515.82	784.53	12.116	0.090	Vega
WISE_W1	5089.77	51.3	11.934	0.011	Vega
WISE_W2	3565.73	64.55	11.681	0.020	Vega
WISE_W3	15730.59	223.16	8.234	0.015	Vega
WISE_W4	18136.54	1378.05	6.634	0.082	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.947	9.281	9.492
{\rm log}_{10}({\rm SFR})	-1.115	-0.366	0.252
{\rm log}_{10}({\rm sSFR})	-10.465	-9.625	-8.709
{\rm stellar\ age}	2.945	6.858	8.911

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.483	-0.596	-0.097
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.411	-0.569	-0.047

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.440	0.868	1.289
\delta	-0.688	-0.300	0.043
\tau_1/\tau_2	0.610	1.040	1.485
Q_{PAH}	0.381	1.588	3.677
U_{min}	2.962	8.190	15.160
{\rm log}_{10}(\gamma_e)\,	-3.457	-2.067	-1.018

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.891	-1.745	-0.365
{\rm log}_{10}(\tau_{AGN})\,	1.038	1.492	1.947

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.913	-0.253	0.244
0.03-0.10 Gyr	-1.956	-0.656	0.235
0.10-0.33 Gyr	-2.511	-1.212	-0.457
0.33-1.08 Gyr	-2.690	-1.110	-0.432
1.08-3.57 Gyr	-2.748	-0.968	-0.499
3.57-11.75 Gyr	-2.185	-0.747	-0.414
11.75-13.06 Gyr	-2.085	-0.639	0.128

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.659	10.819	10.969
{\rm log}_{10}({\rm SFR})	0.585	0.897	1.224
{\rm log}_{10}({\rm sSFR})	-10.293	-9.898	-9.531
{\rm stellar\ age}	6.230	7.802	10.752

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.664	-0.152	0.085
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.457	-0.537	0.135

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.141	0.323	0.628
\delta	-0.564	-0.093	0.210
\tau_1/\tau_2	0.292	0.784	1.300
Q_{PAH}	0.352	1.116	3.115
U_{min}	2.365	6.694	13.096
{\rm log}_{10}(\gamma_e)\,	-3.616	-2.730	-1.716

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.520	-1.881	-1.212
{\rm log}_{10}(\tau_{AGN})\,	1.069	1.621	1.956

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.209	0.911	1.221
0.03-0.10 Gyr	-0.352	0.788	1.343
0.10-0.33 Gyr	-1.012	0.203	0.902
0.33-1.08 Gyr	-1.173	0.095	0.714
1.08-3.57 Gyr	-0.659	0.477	0.885
3.57-11.75 Gyr	0.301	0.849	1.062
11.75-13.06 Gyr	0.455	1.147	1.910