2025aegj

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Information

Transient

Name: AT2025aegj
Right ascension: 0h50m34.73s
Declination: -48d10m34.22s
Discovery Date: Nov. 16, 2025, 2:59 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.017

Host

Name: 490365
Right ascension: 0h50m34.75s
Declination: -48d10m34.54s
Redshift: 0.071991
Photometric Redshift:

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	5.18
Transient MWEBV	processed	0.21
Host match	processed	3.76
Host information	processed	0.13
Host MWEBV	processed	0.08
Global aperture construction	processed	0.66
Global aperture photometry	processed	2.76
Validate global photometry	processed	9.17
Global host SED inference	processed	446.44
Local aperture photometry	processed	2.8
Validate local photometry	processed	0.02
Local host SED inference	processed	557.54

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) = 0h50m34.73s, -48d10m34.22s
semi major axis, semi minor axis (arcsec) = 1.46, 1.46
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	106.18	0.29	18.835	0.003	AB
DES_r	309.73	0.74	17.673	0.003	AB
DES_z	608.75	3.25	16.939	0.006	AB

Aperture details

RA, DEC (J2000) = 0h50m34.75s, -48d10m34.46s
semi major axis, semi minor axis (arcsec) = 15.85, 7.14
angle (degrees, anti-clockwise from east) = 113.36

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	15.62	2.8	20.916	0.195	AB
GALEX_NUV	36.2	2.78	20.003	0.083	AB
DES_g	670.66	0.82	16.834	0.001	AB
DES_r	1519.79	1.78	15.946	0.001	AB
DES_z	2682.21	7.16	15.329	0.003	AB
2MASS_J	3210.45	242.66	14.239	0.082	Vega
2MASS_H	3585.97	363.2	13.646	0.110	Vega
2MASS_K	4118.79	455.12	13.025	0.120	Vega
WISE_W1	1919.73	27.16	12.993	0.015	Vega
WISE_W2	1141.49	29.27	12.917	0.028	Vega
WISE_W3	2063.69	115.37	10.439	0.061	Vega
WISE_W4	1552.04	630.75	9.303	0.441	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})\,	10.019	10.232	10.383
{\rm log}_{10}({\rm SFR})	-0.587	0.119	0.724
{\rm log}_{10}({\rm sSFR})	-10.871	-10.100	-9.384
{\rm stellar\ age}	4.187	7.398	10.872

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.531	-0.742	-0.136
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.607	-0.040	0.281

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.739	1.166	1.674
\delta	-0.765	-0.505	-0.289
\tau_1/\tau_2	0.673	1.048	1.447
Q_{PAH}	0.442	1.687	4.242
U_{min}	3.063	8.336	15.692
{\rm log}_{10}(\gamma_e)\,	-3.209	-1.776	-0.619

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.951	-1.231	-0.137
{\rm log}_{10}(\tau_{AGN})\,	0.967	1.589	2.022

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.381	0.256	0.745
0.03-0.10 Gyr	-1.307	-0.082	0.704
0.10-0.33 Gyr	-1.855	-0.352	0.490
0.33-1.07 Gyr	-2.349	-0.398	0.283
1.07-3.52 Gyr	-2.538	-0.239	0.337
3.52-11.52 Gyr	-1.203	0.200	0.488
11.52-12.80 Gyr	-0.671	0.433	1.378

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.770	10.819	10.905
{\rm log}_{10}({\rm SFR})	-0.133	0.146	0.452
{\rm log}_{10}({\rm sSFR})	-10.981	-10.689	-10.383
{\rm stellar\ age}	7.479	8.428	11.458

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.568	-0.359	-0.207
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.545	0.019	0.371

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.170	0.244	0.379
\delta	-0.892	-0.655	-0.340
\tau_1/\tau_2	0.636	1.041	1.442
Q_{PAH}	0.648	1.570	3.244
U_{min}	2.255	7.168	14.174
{\rm log}_{10}(\gamma_e)\,	-3.142	-1.878	-1.147

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.312	-3.235	-2.283
{\rm log}_{10}(\tau_{AGN})\,	1.039	1.523	1.918

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.665	-0.066	0.245
0.03-0.10 Gyr	-0.211	0.190	0.566
0.10-0.33 Gyr	-0.513	0.077	0.446
0.33-1.07 Gyr	-1.146	-0.182	0.220
1.07-3.52 Gyr	-1.044	0.007	0.547
3.52-11.52 Gyr	0.207	0.947	1.070
11.52-12.80 Gyr	0.753	1.351	2.000