2025sak results

2025sak results

Information

Transient

Name:	`AT2025sak`
Right ascension:	`3h39m07.11s`
Declination:	`-32d05m24.27s`
Discovery Date:	`July 24, 2025, 5:39 p.m.`
Classification:	`None`
Redshift:	`None`
MW E(B-V):	`0.010`

Host

Name:	`696978`
Right ascension:	`3h39m06.91s`
Declination:	`-32d05m34.30s`
Redshift:	`None`
Photometric Redshift:	`0.057`

Cutout Download Report

Downloaded	Unavailable
2MASS_H 2MASS_J 2MASS_K WISE_W1 WISE_W2 WISE_W3 WISE_W4 GALEX_NUV DES_g DES_r DES_z	GALEX_FUV PanSTARRS_g PanSTARRS_r PanSTARRS_i PanSTARRS_z PanSTARRS_y SDSS_i SDSS_r SDSS_u SDSS_z SDSS_g DES_i DES_Y

Processing Status: completed

Task Name	Status	Time (s)
Cutout download	processed	10.75
Transient MWEBV	processed	0.1
Host match	processed	4.28
Host information	processed	0.15
Host MWEBV	processed	0.04
Global aperture construction	processed	0.61
Global aperture photometry	processed	2.05
Validate global photometry	processed	5.71
Global host SED inference	processed	478.38
Local aperture photometry	processed	2.46
Validate local photometry	processed	0.02
Local host SED inference	processed	460.27

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	3h39m07.11s, -32d05m24.27s
semi major axis, semi minor axis (arcsec):	1.8, 1.8
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	5.89	0.1	21.974	0.019	AB
DES_r	7.45	0.13	21.719	0.019	AB
DES_z	7.36	0.43	21.732	0.063	AB

Aperture details

RA, DEC (J2000):	3h39m06.96s, -32d05m35.60s
semi major axis, semi minor axis (arcsec):	16.61, 15.29
angle (degrees, anti-clockwise from east):	83.53

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_NUV	74.78	6.1	19.215	0.089	AB
DES_g	378.57	0.86	17.455	0.002	AB
DES_r	608.62	1.19	16.939	0.002	AB
DES_z	947.01	4.27	16.459	0.005	AB
WISE_W1	539.04	22.17	14.372	0.045	Vega
WISE_W2	373.64	28.81	14.130	0.084	Vega
WISE_W3	382.77	104.01	12.269	0.295	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	7.388	7.673	7.890
{\rm log}_{10}({\rm SFR})	-1.947	-1.357	-0.650
{\rm log}_{10}({\rm sSFR})	-9.717	-9.009	-8.030
{\rm stellar\ age}	0.377	4.577	6.781

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.790	-1.369	-0.581
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.671	-1.073	0.017

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.209	0.596	1.146
\delta	-0.396	0.010	0.291
\tau_1/\tau_2	0.661	1.062	1.485
Q_{PAH}	0.848	2.489	4.681
U_{min}	2.798	8.236	15.539
{\rm log}_{10}(\gamma_e)\,	-3.034	-2.041	-0.973

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.095	-0.059	0.291
{\rm log}_{10}(\tau_{AGN})\,	1.093	1.433	1.900

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.089	-1.633	-1.089
0.03-0.10 Gyr	-2.127	-1.378	-0.533
0.10-0.33 Gyr	-3.179	-1.962	-1.371
0.33-1.08 Gyr	-4.294	-2.268	-1.789
1.08-3.56 Gyr	-4.848	-2.473	-2.000
3.56-11.69 Gyr	-5.089	-2.570	-2.059
11.69-12.99 Gyr	-4.919	-2.621	-1.931

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.995	10.061	10.149
{\rm log}_{10}({\rm SFR})	-0.306	0.009	0.352
{\rm log}_{10}({\rm sSFR})	-10.385	-10.046	-9.697
{\rm stellar\ age}	7.236	8.184	11.111

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.690	-0.439	-0.258
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.572	-0.204	0.293

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.041	0.098	0.221
\delta	-0.754	-0.283	0.145
\tau_1/\tau_2	0.658	1.065	1.488
Q_{PAH}	0.804	2.063	3.910
U_{min}	2.808	8.129	15.941
{\rm log}_{10}(\gamma_e)\,	-2.988	-1.955	-1.004

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.561	-2.301	-1.636
{\rm log}_{10}(\tau_{AGN})\,	1.130	1.541	1.899

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.620	-0.650	-0.292
0.03-0.10 Gyr	-0.262	0.134	0.504
0.10-0.33 Gyr	-1.047	-0.222	0.145
0.33-1.08 Gyr	-1.901	-0.645	-0.236
1.08-3.56 Gyr	-1.721	-0.530	-0.076
3.56-11.69 Gyr	-0.399	0.163	0.298
11.69-12.99 Gyr	-0.140	0.501	1.180