2025aczx

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Information

Transient

Name: AT2025aczx
Right ascension: 21h27m08.55s
Declination: 3d59m11.24s
Discovery Date: Nov. 8, 2025, 8:11 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.053

Host

Name:
Right ascension: 21h27m08.49s
Declination: 3d59m12.11s
Redshift: None
Photometric Redshift: 0.196

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	20.16
Transient MWEBV	processed	0.06
Host match	processed	5.51
Host information	processed	0.12
Host MWEBV	processed	0.08
Global aperture construction	processed	0.71
Global aperture photometry	processed	6.93
Validate global photometry	processed	18.04
Global host SED inference	processed	438.41
Local aperture photometry	processed	6.83
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) = 21h27m08.55s, 3d59m11.24s
semi major axis, semi minor axis (arcsec) = 0.62, 0.62
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) = 21h27m08.49s, 3d59m12.15s
semi major axis, semi minor axis (arcsec) = 5.38, 3.17
angle (degrees, anti-clockwise from east) = -67.04

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	2.35	0.44	22.970	0.203	AB
GALEX_NUV	3.1	0.42	22.673	0.146	AB
SDSS_u	13.04	3.75	21.112	0.312	AB
SDSS_g	54.44	2.21	19.560	0.044	AB
DES_g	56.43	0.48	19.521	0.009	AB
PanSTARRS_g	59.16	0.91	19.470	0.017	AB
SDSS_r	133.85	3.54	18.583	0.029	AB
PanSTARRS_r	141.64	1.27	18.522	0.010	AB
DES_r	144.72	1.29	18.499	0.010	AB
SDSS_i	222.39	4.88	18.032	0.024	AB
PanSTARRS_i	211.12	1.05	18.089	0.005	AB
PanSTARRS_z	252.75	3.0	17.893	0.013	AB
SDSS_z	332.47	16.22	17.596	0.053	AB
DES_z	279.88	4.11	17.783	0.016	AB
PanSTARRS_y	309.24	9.04	17.674	0.032	AB
2MASS_J	310.52	117.85	16.775	0.412	Vega
2MASS_H	219.55	186.52	16.679	0.922	Vega
2MASS_K	423.4	203.73	15.495	0.522	Vega
WISE_W1	179.84	13.61	15.564	0.082	Vega
WISE_W2	143.77	17.85	15.167	0.135	Vega
WISE_W3	216.17	80.27	12.889	0.403	Vega
WISE_W4	973.92	494.89	9.809	0.552	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})\,	10.714	10.750	10.831
{\rm log}_{10}({\rm SFR})	0.052	0.338	0.605
{\rm log}_{10}({\rm sSFR})	-10.744	-10.428	-10.153
{\rm stellar\ age}	6.723	7.376	9.980

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.044	-0.779	-0.605
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.697	-0.160	0.264

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.219	0.297	0.417
\delta	-0.880	-0.670	-0.436
\tau_1/\tau_2	0.793	1.216	1.635
Q_{PAH}	0.748	2.293	4.626
U_{min}	2.952	8.321	15.826
{\rm log}_{10}(\gamma_e)\,	-2.539	-1.365	-0.337

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.647	-2.141	-1.521
{\rm log}_{10}(\tau_{AGN})\,	1.119	1.482	1.802

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.082	0.292	0.460
0.03-0.10 Gyr	-0.053	0.355	0.690
0.10-0.32 Gyr	-0.990	-0.112	0.291
0.32-1.01 Gyr	-1.053	-0.215	0.162
1.01-3.21 Gyr	-1.086	0.002	0.456
3.21-10.22 Gyr	0.340	0.977	1.068
10.22-11.35 Gyr	0.783	1.262	1.953