2025acoi

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Information

Transient

Name: AT2025acoi
Right ascension: 1h25m22.84s
Declination: 2d14m20.68s
Discovery Date: Oct. 20, 2025, 6:08 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.028

Host

Name:
Right ascension: 1h25m22.76s
Declination: 2d14m21.30s
Redshift: None
Photometric Redshift: 0.141

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	7.51
Cutout download	processed	0.07
Global aperture construction	processed	0.62
Local aperture photometry	processed	6.16
Global aperture photometry	processed	6.02
Validate local photometry	no valid phot	0.02
Validate global photometry	processed	12.97
Host information	processed	0.11
Global host SED inference	processed	495.25
Local host SED inference	not processed	None
Transient information	processed	0.0
Transient MWEBV	processed	0.17
Host MWEBV	processed	0.07
Processing status	blocked	N/A	N/A

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) = 1h25m22.84s, 2d14m20.68s
semi major axis, semi minor axis (arcsec) = 0.81, 0.81
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) = 1h25m22.73s, 2d14m21.77s
semi major axis, semi minor axis (arcsec) = 3.83, 1.46
angle (degrees, anti-clockwise from east) = -15.7

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	5.07	0.63	22.137	0.134	AB
GALEX_NUV	7.11	0.52	21.771	0.079	AB
SDSS_g	23.48	1.41	20.473	0.065	AB
DES_g	19.72	0.14	20.663	0.008	AB
PanSTARRS_g	22.07	0.59	20.541	0.029	AB
PanSTARRS_r	25.66	0.82	20.377	0.035	AB
DES_r	31.9	0.24	20.140	0.008	AB
PanSTARRS_i	40.49	0.56	19.882	0.015	AB
PanSTARRS_z	53.85	1.2	19.572	0.024	AB
DES_z	41.32	0.76	19.860	0.020	AB
PanSTARRS_y	48.63	3.13	19.683	0.070	AB
2MASS_J	161.48	83.85	17.485	0.564	Vega
2MASS_H	102.94	122.2	17.501	1.289	Vega
2MASS_K	81.83	148.48	17.280	1.970	Vega

Imaging data

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})\,	9.380	9.588	9.744
{\rm log}_{10}({\rm SFR})	0.090	0.518	1.005
{\rm log}_{10}({\rm sSFR})	-9.510	-9.057	-8.514
{\rm stellar\ age}	2.223	5.495	7.461

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.707	-1.156	-0.359
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.300	0.131	0.369

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.442	1.020	1.666
\delta	0.142	0.293	0.367
\tau_1/\tau_2	0.585	1.102	1.581
Q_{PAH}	0.681	2.306	4.587
U_{min}	3.034	8.797	16.375
{\rm log}_{10}(\gamma_e)\,	-3.265	-2.123	-0.879

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.635	-1.416	-0.358
{\rm log}_{10}(\tau_{AGN})\,	0.985	1.378	1.802

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.009	-0.277	0.200
0.03-0.10 Gyr	0.181	0.641	1.156
0.10-0.32 Gyr	-1.278	-0.063	0.608
0.32-1.04 Gyr	-1.911	-0.590	0.002
1.04-3.34 Gyr	-2.096	-0.596	-0.188
3.34-10.77 Gyr	-1.970	-0.506	-0.189
10.77-11.96 Gyr	-1.742	-0.421	0.332