2025aczm

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Information

Transient

Name: AT2025aczm
Right ascension: 8h39m25.21s
Declination: -1d25m54.52s
Discovery Date: Nov. 10, 2025, 11:08 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.028

Host

Name:
Right ascension: 8h39m25.26s
Declination: -1d25m56.82s
Redshift: 0.049040
Photometric Redshift:

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	15.51
Transient MWEBV	processed	0.03
Host match	processed	6.2
Host information	processed	0.2
Host MWEBV	processed	0.04
Global aperture construction	processed	0.63
Global aperture photometry	processed	5.03
Validate global photometry	processed	14.81
Global host SED inference	processed	709.99
Local aperture photometry	processed	4.88
Validate local photometry	processed	0.02
Local host SED inference	processed	521.39

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) = 8h39m25.21s, -1d25m54.52s
semi major axis, semi minor axis (arcsec) = 2.08, 2.08
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	10.45	1.7	21.352	0.176	AB
SDSS_g	18.07	1.24	20.758	0.075	AB
PanSTARRS_g	22.7	0.53	20.510	0.025	AB
SDSS_r	30.55	1.72	20.187	0.061	AB
PanSTARRS_r	33.58	0.58	20.085	0.019	AB
SDSS_i	35.59	2.11	20.022	0.064	AB
PanSTARRS_i	41.06	0.65	19.866	0.017	AB
PanSTARRS_z	40.38	1.32	19.884	0.036	AB
SDSS_z	30.95	6.46	20.173	0.227	AB
PanSTARRS_y	40.26	3.82	19.888	0.103	AB

Aperture details

RA, DEC (J2000) = 8h39m25.26s, -1d25m56.80s
semi major axis, semi minor axis (arcsec) = 6.87, 4.16
angle (degrees, anti-clockwise from east) = -172.36

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	13.6	3.02	21.066	0.241	AB
GALEX_NUV	10.91	0.63	21.306	0.063	AB
SDSS_u	35.26	4.18	20.032	0.129	AB
SDSS_g	69.78	2.66	19.291	0.041	AB
PanSTARRS_g	77.96	1.33	19.170	0.019	AB
SDSS_r	129.09	3.86	18.623	0.032	AB
PanSTARRS_r	122.87	1.47	18.676	0.013	AB
SDSS_i	147.53	4.88	18.478	0.036	AB
PanSTARRS_i	147.11	1.62	18.481	0.012	AB
PanSTARRS_z	166.89	3.34	18.344	0.022	AB
SDSS_z	173.38	16.45	18.303	0.103	AB
PanSTARRS_y	178.66	9.64	18.270	0.059	AB
2MASS_J	82.43	194.77	18.215	2.566	Vega
2MASS_H	-107.08	305.63			Vega
2MASS_K	266.99	336.3	15.996	1.368	Vega
WISE_W1	66.72	12.53	16.640	0.204	Vega
WISE_W2	36.15	14.7	16.666	0.441	Vega
WISE_W3	70.45	60.43	14.106	0.931	Vega
WISE_W4	298.01	414.83	11.094	1.511	Vega

Imaging data

Click the image to load the interactive plot.

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})\,	8.470	8.589	8.691
{\rm log}_{10}({\rm SFR})	-1.800	-1.320	-0.803
{\rm log}_{10}({\rm sSFR})	-10.386	-9.926	-9.370
{\rm stellar\ age}	5.746	7.250	8.750

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.837	-1.513	-1.034
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.818	-0.981	0.142

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.123	0.367	0.760
\delta	-0.490	-0.041	0.249
\tau_1/\tau_2	0.771	1.137	1.486
Q_{PAH}	1.130	2.986	5.254
U_{min}	2.873	7.946	14.827
{\rm log}_{10}(\gamma_e)\,	-2.851	-1.821	-0.671

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.147	-0.563	-0.052
{\rm log}_{10}(\tau_{AGN})\,	0.980	1.429	1.919

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.159	-1.632	-1.184
0.03-0.10 Gyr	-1.849	-1.271	-0.690
0.10-0.33 Gyr	-2.112	-1.484	-1.024
0.33-1.09 Gyr	-2.326	-1.728	-1.289
1.09-3.58 Gyr	-2.217	-1.554	-1.277
3.58-11.79 Gyr	-1.689	-1.324	-1.149
11.79-13.10 Gyr	-1.896	-1.243	-0.673

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.082	9.185	9.321
{\rm log}_{10}({\rm SFR})	-1.344	-0.979	-0.583
{\rm log}_{10}({\rm sSFR})	-10.514	-10.159	-9.790
{\rm stellar\ age}	6.529	7.682	11.134

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.539	-1.046	-0.670
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.788	0.267	0.432

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.032	0.151	0.372
\delta	-0.502	-0.015	0.259
\tau_1/\tau_2	0.509	0.897	1.352
Q_{PAH}	1.061	2.859	5.017
U_{min}	2.912	8.759	16.267
{\rm log}_{10}(\gamma_e)\,	-2.402	-1.233	-0.332

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.954	-1.138	-0.703
{\rm log}_{10}(\tau_{AGN})\,	1.440	1.800	2.026

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.841	-1.586	-1.241
0.03-0.10 Gyr	-1.293	-0.862	-0.432
0.10-0.33 Gyr	-1.747	-0.998	-0.634
0.33-1.09 Gyr	-2.773	-1.201	-0.833
1.09-3.58 Gyr	-2.620	-1.069	-0.741
3.58-11.79 Gyr	-1.272	-0.751	-0.571
11.79-13.10 Gyr	-1.088	-0.502	0.356