2025pac

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Information

Transient

Name: AT2025pac
Right ascension: 21h57m36.04s
Declination: 8d36m57.23s
Discovery Date: June 22, 2025, 10:07 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.037

Host

Name:
Right ascension: 21h57m36.35s
Declination: 8d36m57.14s
Redshift: None
Photometric Redshift: 0.074

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	34.38
Transient MWEBV	processed	0.06
Host match	processed	5.92
Host information	processed	0.14
Host MWEBV	processed	0.04
Global aperture construction	processed	0.71
Global aperture photometry	processed	5.15
Validate global photometry	processed	14.55
Global host SED inference	processed	412.55
Local aperture photometry	processed	6.41
Validate local photometry	processed	0.02
Local host SED inference	processed	436.86

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) = 21h57m36.04s, 8d36m57.23s
semi major axis, semi minor axis (arcsec) = 1.42, 1.42
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	15.83	0.23	20.901	0.016	AB
PanSTARRS_g	17.35	0.28	20.802	0.017	AB
SDSS_r	25.1	1.41	20.401	0.061	AB
PanSTARRS_r	27.69	0.37	20.294	0.015	AB
DES_r	25.45	0.55	20.386	0.024	AB
SDSS_i	30.65	1.72	20.184	0.061	AB
PanSTARRS_i	33.67	0.34	20.082	0.011	AB
PanSTARRS_z	38.76	0.94	19.929	0.026	AB
SDSS_z	33.88	3.54	20.075	0.113	AB
DES_z	37.79	1.15	19.957	0.033	AB
PanSTARRS_y	41.61	2.67	19.852	0.070	AB

Aperture details

RA, DEC (J2000) = 21h57m36.34s, 8d36m57.22s
semi major axis, semi minor axis (arcsec) = 11.58, 5.06
angle (degrees, anti-clockwise from east) = -71.22

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	16.49	3.11	20.857	0.205	AB
GALEX_NUV	37.8	2.94	19.956	0.084	AB
DES_g	238.99	0.93	17.954	0.004	AB
PanSTARRS_g	268.25	1.47	17.829	0.006	AB
PanSTARRS_r	454.04	1.96	17.257	0.005	AB
DES_r	441.5	2.41	17.288	0.006	AB
PanSTARRS_i	611.06	1.78	16.935	0.003	AB
PanSTARRS_z	710.41	5.01	16.771	0.008	AB
DES_z	730.62	5.21	16.741	0.008	AB
PanSTARRS_y	774.17	14.27	16.678	0.020	AB
2MASS_J	733.43	152.24	15.842	0.225	Vega
2MASS_H	1463.81	219.17	14.619	0.163	Vega
2MASS_K	1288.32	305.49	14.287	0.257	Vega
WISE_W1	555.68	19.07	14.339	0.037	Vega
WISE_W2	357.88	23.42	14.177	0.071	Vega
WISE_W3	828.83	113.25	11.430	0.148	Vega
WISE_W4	403.97	590.31	10.764	1.587	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})\,	8.743	8.870	8.975
{\rm log}_{10}({\rm SFR})	-1.985	-1.368	-0.645
{\rm log}_{10}({\rm sSFR})	-10.840	-10.211	-9.452
{\rm stellar\ age}	4.342	6.427	7.922

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.429	-0.854	-0.353
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.209	-0.784	-0.358

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.114	0.346	0.830
\delta	-0.596	-0.133	0.244
\tau_1/\tau_2	0.633	0.994	1.346
Q_{PAH}	1.217	3.091	5.319
U_{min}	3.220	8.345	15.066
{\rm log}_{10}(\gamma_e)\,	-2.869	-1.717	-0.650

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.439	-0.313	0.157
{\rm log}_{10}(\tau_{AGN})\,	1.100	1.519	2.002

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.068	-1.555	-1.109
0.03-0.10 Gyr	-2.150	-1.352	-0.509
0.10-0.33 Gyr	-1.992	-1.247	-0.625
0.33-1.07 Gyr	-1.874	-1.154	-0.682
1.07-3.51 Gyr	-1.694	-1.085	-0.818
3.51-11.50 Gyr	-1.545	-1.059	-0.868
11.50-12.77 Gyr	-1.761	-1.074	-0.524

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.238	10.295	10.379
{\rm log}_{10}({\rm SFR})	-0.148	0.113	0.398
{\rm log}_{10}({\rm sSFR})	-10.443	-10.195	-9.896
{\rm stellar\ age}	7.375	8.372	11.190

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.882	-0.594	-0.404
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.784	-1.066	0.160

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.150	0.274	0.468
\delta	-0.244	0.105	0.300
\tau_1/\tau_2	0.633	1.034	1.455
Q_{PAH}	0.646	1.790	3.726
U_{min}	3.012	7.898	15.329
{\rm log}_{10}(\gamma_e)\,	-2.834	-1.682	-0.796

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.854	-2.611	-1.778
{\rm log}_{10}(\tau_{AGN})\,	1.001	1.402	1.852

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.679	-0.261	-0.064
0.03-0.10 Gyr	-0.129	0.220	0.535
0.10-0.33 Gyr	-0.884	-0.192	0.174
0.33-1.07 Gyr	-1.509	-0.541	-0.153
1.07-3.51 Gyr	-1.402	-0.444	0.009
3.51-11.50 Gyr	-0.202	0.427	0.548
11.50-12.77 Gyr	0.209	0.842	1.448