2025aiiv results

2025aiiv results

Information

Transient

Name:	`AT2025aiiv`
Right ascension:	`23h01m26.51s`
Declination:	`1d12m25.94s`
Discovery Date:	`Dec. 24, 2025, 1:35 p.m.`
Classification:	`None`
Redshift:	`None`
MW E(B-V):	`0.047`

Host

Name:	`1187736`
Right ascension:	`23h01m26.16s`
Declination:	`1d12m21.24s`
Redshift:	`None`
Photometric Redshift:	`0.065`

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_z	DES_i DES_Y

Processing Status: blocked

Task Name	Status	Time (s)
Cutout download	processed	18.33
Transient MWEBV	processed	0.04
Host match	processed	3.71
Host information	processed	0.09
Host MWEBV	processed	0.06
Global aperture construction	processed	0.62
Global aperture photometry	processed	2.27
Validate global photometry	processed	3.31
Global host SED inference	processed	482.83
Local aperture photometry	processed	7.12
Validate local photometry	processed	0.03
Local host SED inference	processed	464.77

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	23h01m26.51s, 1d12m25.94s
semi major axis, semi minor axis (arcsec):	1.6, 1.6
angle (degrees, anti-clockwise from east):	0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	4.48	1.51	22.271	0.365	AB
SDSS_g	8.25	0.89	21.609	0.117	AB
DES_g	7.65	0.11	21.691	0.015	AB
PanSTARRS_g	6.57	0.31	21.856	0.051	AB
SDSS_r	14.58	1.25	20.991	0.093	AB
PanSTARRS_r	8.28	0.43	21.605	0.056	AB
DES_r	11.88	0.15	21.213	0.013	AB
SDSS_i	15.99	1.61	20.890	0.109	AB
PanSTARRS_i	11.59	0.33	21.240	0.031	AB
PanSTARRS_z	14.74	1.04	20.979	0.077	AB
SDSS_z	22.41	5.03	20.524	0.244	AB
DES_z	16.55	0.43	20.853	0.028	AB
PanSTARRS_y	10.3	2.64	21.368	0.279	AB

Aperture details

RA, DEC (J2000):	23h01m26.16s, 1d12m21.82s
semi major axis, semi minor axis (arcsec):	14.99, 4.4
angle (degrees, anti-clockwise from east):	-148.13

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	18.64	3.84	20.724	0.224	AB
GALEX_NUV	33.19	3.36	20.097	0.110	AB
SDSS_u	75.23	7.88	19.209	0.114	AB
SDSS_g	248.91	5.06	17.910	0.022	AB
DES_g	163.72	0.97	18.365	0.006	AB
PanSTARRS_g	258.77	1.55	17.868	0.007	AB
PanSTARRS_r	444.73	2.32	17.280	0.006	AB
DES_r	328.39	1.7	17.609	0.006	AB
SDSS_i	636.37	9.65	16.891	0.016	AB
PanSTARRS_z	779.25	5.17	16.671	0.007	AB
SDSS_z	771.78	26.66	16.681	0.038	AB
DES_z	586.1	2.8	16.980	0.005	AB
PanSTARRS_y	810.9	12.96	16.628	0.017	AB
2MASS_J	1150.67	207.02	15.353	0.195	Vega
2MASS_K	1286.53	336.97	14.289	0.284	Vega
WISE_W1	609.67	75.84	14.238	0.135	Vega
WISE_W2	409.68	35.86	14.030	0.095	Vega
WISE_W3	1759.22	161.91	10.613	0.100	Vega
WISE_W4	1694.39	641.34	9.207	0.411	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	7.806	8.109	8.272
{\rm log}_{10}({\rm SFR})	-3.014	-1.728	-0.540
{\rm log}_{10}({\rm sSFR})	-11.157	-9.903	-8.405
{\rm stellar\ age}	0.242	3.031	6.083

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.444	-0.755	-0.170
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.643	-0.876	0.018

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.243	0.569	1.016
\delta	-0.409	-0.068	0.209
\tau_1/\tau_2	0.571	1.011	1.441
Q_{PAH}	0.990	2.758	5.200
U_{min}	3.563	9.434	17.131
{\rm log}_{10}(\gamma_e)\,	-2.881	-1.834	-0.802

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-0.661	-0.051	0.283
{\rm log}_{10}(\tau_{AGN})\,	1.157	1.465	1.931

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-4.430	-2.460	-1.742
0.03-0.10 Gyr	-3.251	-1.659	-0.383
0.10-0.33 Gyr	-2.635	-1.281	-0.535
0.33-1.08 Gyr	-3.929	-1.441	-0.981
1.08-3.54 Gyr	-5.385	-2.156	-1.513
3.54-11.60 Gyr	-6.127	-2.574	-1.739
11.60-12.89 Gyr	-6.275	-2.456	-1.545

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.253	10.332	10.423
{\rm log}_{10}({\rm SFR})	0.122	0.512	0.881
{\rm log}_{10}({\rm sSFR})	-10.233	-9.800	-9.426
{\rm stellar\ age}	7.666	10.984	12.115

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.375	-0.960	-0.634
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.110	-0.638	-0.185

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.502	0.732	0.937
\delta	-0.023	0.106	0.225
\tau_1/\tau_2	0.441	0.932	1.424
Q_{PAH}	0.459	1.247	2.621
U_{min}	3.207	8.968	16.572
{\rm log}_{10}(\gamma_e)\,	-3.159	-2.154	-1.398

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.958	-2.709	-1.798
{\rm log}_{10}(\tau_{AGN})\,	1.115	1.598	1.954

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.448	-0.503	0.007
0.03-0.10 Gyr	0.262	0.657	1.029
0.10-0.33 Gyr	-3.595	-2.109	-0.641
0.33-1.08 Gyr	-6.223	-3.624	-1.219
1.08-3.54 Gyr	-4.540	-2.461	-0.933
3.54-11.60 Gyr	-1.747	0.011	0.541
11.60-12.89 Gyr	0.179	1.370	1.546