2025ssk results

2025ssk results

Information

Transient

Name:	`AT2025ssk`
Right ascension:	`5h27m47.47s`
Declination:	`19d56m58.18s`
Discovery Date:	`July 31, 2025, 11:43 a.m.`
Classification:	`None`
Redshift:	`None`
MW E(B-V):	`0.576`

Host

Name:	`86277`
Right ascension:	`5h27m47.14s`
Declination:	`19d56m59.21s`
Redshift:	`0.027299`
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_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	31.32
Transient MWEBV	processed	0.09
Host match	processed	4.6
Host information	processed	0.16
Host MWEBV	processed	0.04
Global aperture construction	processed	0.71
Global aperture photometry	processed	3.84
Validate global photometry	processed	11.55
Global host SED inference	processed	600.0
Local aperture photometry	processed	4.42
Validate local photometry	processed	0.02
Local host SED inference	processed	472.48

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	5h27m47.47s, 19d56m58.18s
semi major axis, semi minor axis (arcsec):	3.65, 3.65
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	87.21	0.98	19.049	0.012	AB
PanSTARRS_r	320.82	1.09	17.634	0.004	AB
PanSTARRS_i	623.92	1.84	16.912	0.003	AB
PanSTARRS_z	949.69	3.85	16.456	0.004	AB
PanSTARRS_y	1376.52	6.12	16.053	0.005	AB
2MASS_J	2490.57	83.55	14.514	0.036	Vega
2MASS_H	3545.03	114.78	13.658	0.035	Vega
2MASS_K	3395.32	150.74	13.235	0.048	Vega

Aperture details

RA, DEC (J2000):	5h27m47.18s, 19d56m59.03s
semi major axis, semi minor axis (arcsec):	11.85, 7.79
angle (degrees, anti-clockwise from east):	-179.14

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
PanSTARRS_g	486.87	2.57	17.181	0.006	AB
PanSTARRS_z	5690.54	10.02	14.512	0.002	AB
PanSTARRS_y	8402.02	15.99	14.089	0.002	AB
WISE_W1	8879.69	145.34	11.330	0.018	Vega
WISE_W4	22032.9	1563.86	6.422	0.077	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.701	9.882	10.037
{\rm log}_{10}({\rm SFR})	-0.404	0.073	0.451
{\rm log}_{10}({\rm sSFR})	-10.463	-9.819	-9.397
{\rm stellar\ age}	3.227	6.302	8.404

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.716	-1.080	-0.456
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.752	-0.397	0.233

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	1.062	1.417	1.698
\delta	-0.443	-0.257	0.004
\tau_1/\tau_2	0.614	0.998	1.401
Q_{PAH}	1.106	2.998	4.666
U_{min}	2.799	7.697	14.864
{\rm log}_{10}(\gamma_e)\,	-3.498	-2.495	-1.254

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.617	-3.718	-1.816
{\rm log}_{10}(\tau_{AGN})\,	1.027	1.618	2.012

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.195	0.163	0.405
0.03-0.10 Gyr	-0.902	-0.015	0.485
0.10-0.33 Gyr	-0.969	0.013	0.455
0.33-1.10 Gyr	-0.999	-0.013	0.338
1.10-3.64 Gyr	-0.820	-0.071	0.275
3.64-12.05 Gyr	-1.136	-0.192	0.118
12.05-13.39 Gyr	-1.066	-0.097	0.598

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.612	10.717	10.843
{\rm log}_{10}({\rm SFR})	-2.335	-0.639	0.488
{\rm log}_{10}({\rm sSFR})	-13.009	-11.271	-10.137
{\rm stellar\ age}	7.352	8.510	12.474

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.716	-0.437	-0.255
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.900	-0.187	0.247

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.320	0.568	0.803
\delta	-0.903	-0.653	-0.327
\tau_1/\tau_2	0.493	0.912	1.325
Q_{PAH}	0.244	0.737	2.300
U_{min}	2.457	7.331	15.295
{\rm log}_{10}(\gamma_e)\,	-3.644	-2.525	-1.177

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.184	-2.546	-1.624
{\rm log}_{10}(\tau_{AGN})\,	1.090	1.469	1.887

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.836	-0.841	0.244
0.03-0.10 Gyr	-3.109	-0.696	0.561
0.10-0.33 Gyr	-3.352	-0.820	0.364
0.33-1.10 Gyr	-3.163	-0.758	0.203
1.10-3.64 Gyr	-2.238	-0.104	0.603
3.64-12.05 Gyr	-0.543	0.753	0.955
12.05-13.39 Gyr	0.382	1.141	1.955