2026acu

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Information

Transient

Name: AT2026acu
Right ascension: 12h08m11.15s
Declination: 42d50m39.61s
Discovery Date: Jan. 12, 2026, 9:56 a.m.
Classification: None
Redshift: None
MW E(B-V):

Host

Name: SDSSJ120811.28+42503
Right ascension: 12h08m11.28s
Declination: 42d50m39.77s
Redshift: None
Photometric Redshift: 0.129

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	17.73
Transient MWEBV	processed	0.04
Host match	processed	4.9
Host information	processed	0.07
Host MWEBV	processed	0.04
Global aperture construction	processed	0.61
Global aperture photometry	processed	4.58
Validate global photometry	processed	15.96
Global host SED inference	processed	374.51
Local aperture photometry	processed	4.49
Validate local photometry	no valid phot	0.02
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) = 12h08m11.15s, 42d50m39.61s
semi major axis, semi minor axis (arcsec) = 0.87, 0.87
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) = 12h08m11.29s, 42d50m40.16s
semi major axis, semi minor axis (arcsec) = 5.87, 4.53
angle (degrees, anti-clockwise from east) = -79.71

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	10.45	0.88	21.353	0.092	AB
GALEX_NUV	18.75	0.58	20.718	0.034	AB
SDSS_u	36.03	4.84	20.008	0.146	AB
SDSS_g	166.98	3.64	18.343	0.024	AB
PanSTARRS_g	173.98	1.02	18.299	0.006	AB
SDSS_r	300.76	5.04	17.704	0.018	AB
PanSTARRS_r	298.44	1.28	17.713	0.005	AB
SDSS_i	432.1	6.24	17.311	0.016	AB
PanSTARRS_i	413.36	1.48	17.359	0.004	AB
PanSTARRS_z	466.09	2.78	17.229	0.006	AB
SDSS_z	438.54	18.23	17.295	0.045	AB
PanSTARRS_y	560.44	5.38	17.029	0.010	AB
2MASS_J	733.2	122.58	15.842	0.182	Vega
2MASS_H	763.17	206.42	15.326	0.294	Vega
2MASS_K	688.91	172.7	14.967	0.272	Vega
WISE_W1	400.91	12.74	14.693	0.034	Vega
WISE_W2	265.81	15.26	14.500	0.062	Vega
WISE_W3	890.72	63.24	11.352	0.077	Vega
WISE_W4	-16.22	340.3			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})\,	10.366	10.429	10.478
{\rm log}_{10}({\rm SFR})	0.073	0.267	0.444
{\rm log}_{10}({\rm sSFR})	-10.361	-10.166	-9.969
{\rm stellar\ age}	4.355	5.487	6.426

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.459	-0.254	-0.097
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.608	-0.117	0.258

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.220	0.323	0.472
\delta	-0.623	-0.361	-0.145
\tau_1/\tau_2	0.770	1.070	1.378
Q_{PAH}	0.636	1.733	3.289
U_{min}	2.319	6.613	13.071
{\rm log}_{10}(\gamma_e)\,	-3.079	-2.095	-1.210

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.433	-3.440	-2.300
{\rm log}_{10}(\tau_{AGN})\,	1.022	1.524	1.930

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.250	0.398	0.539
0.03-0.10 Gyr	-0.121	0.200	0.446
0.10-0.32 Gyr	0.148	0.458	0.698
0.32-1.04 Gyr	0.598	0.778	0.946
1.04-3.37 Gyr	0.462	0.654	0.831
3.37-10.89 Gyr	0.222	0.481	0.616
10.89-12.10 Gyr	-0.122	0.442	0.873