2025aggy

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Information

Transient

Name: AT2025aggy
Right ascension: 21h29m42.77s
Declination: 0d50m57.08s
Discovery Date: Dec. 10, 2025, 7:36 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.037

Host

Name: SDSSJ212942.86+00505
Right ascension: 21h29m42.96s
Declination: 0d50m55.82s
Redshift: None
Photometric Redshift: 0.135

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	20.36
Transient MWEBV	processed	0.06
Host match	processed	4.17
Host information	processed	0.11
Host MWEBV	processed	0.05
Global aperture construction	processed	0.68
Global aperture photometry	processed	6.08
Validate global photometry	processed	15.16
Global host SED inference	processed	393.32
Local aperture photometry	processed	6.07
Validate local photometry	no valid phot	0.03
Local host SED inference	not processed	None

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) = 21h29m42.77s, 0d50m57.08s
semi major axis, semi minor axis (arcsec) = 0.84, 0.84
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys

Data not available

Aperture details

RA, DEC (J2000) = 21h29m42.84s, 0d50m56.04s
semi major axis, semi minor axis (arcsec) = 3.93, 3.48
angle (degrees, anti-clockwise from east) = -38.95

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	4.4	0.39	22.291	0.096	AB
GALEX_NUV	8.47	0.36	21.580	0.046	AB
SDSS_g	61.84	2.34	19.422	0.041	AB
DES_g	69.1	0.3	19.301	0.005	AB
PanSTARRS_g	71.68	0.79	19.261	0.012	AB
PanSTARRS_r	121.09	0.87	18.692	0.008	AB
DES_r	128.82	0.54	18.625	0.005	AB
PanSTARRS_i	164.09	1.13	18.362	0.008	AB
PanSTARRS_z	188.33	2.67	18.213	0.015	AB
DES_z	201.84	5.86	18.137	0.032	AB
PanSTARRS_y	228.87	6.16	18.001	0.029	AB
2MASS_J	104.41	104.84	17.958	1.090	Vega
2MASS_H	437.21	165.92	15.931	0.412	Vega
2MASS_K	395.36	183.86	15.570	0.505	Vega
WISE_W1	123.26	9.94	15.974	0.088	Vega
WISE_W2	76.24	12.49	15.856	0.178	Vega
WISE_W3	221.23	73.08	12.864	0.359	Vega
WISE_W4	-81.19	374.44			Vega

Imaging data

Click the image to load the interactive plot.

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Data not available

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.032	10.081	10.132
{\rm log}_{10}({\rm SFR})	-0.375	-0.050	0.260
{\rm log}_{10}({\rm sSFR})	-10.452	-10.132	-9.818
{\rm stellar\ age}	5.331	6.073	6.917

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.845	-0.545	-0.313
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.678	-0.579	0.193

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.148	0.240	0.372
\delta	-0.739	-0.407	-0.062
\tau_1/\tau_2	0.721	1.038	1.350
Q_{PAH}	0.636	1.701	3.419
U_{min}	2.870	7.698	14.661
{\rm log}_{10}(\gamma_e)\,	-2.337	-1.386	-0.483

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.180	-3.009	-1.963
{\rm log}_{10}(\tau_{AGN})\,	1.017	1.512	1.900

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.621	-0.305	-0.094
0.03-0.10 Gyr	-0.366	0.024	0.379
0.10-0.32 Gyr	0.016	0.268	0.499
0.32-1.04 Gyr	-0.027	0.219	0.398
1.04-3.36 Gyr	-0.045	0.180	0.352
3.36-10.83 Gyr	0.060	0.211	0.313
10.83-12.03 Gyr	-0.239	0.215	0.588