2025ahcz

Download data

Information

Transient

Name: SN2025ahcz
Right ascension: 13h48m23.52s
Declination: -13d33m45.74s
Discovery Date: Dec. 15, 2025, 1:29 p.m.
Classification: SN IIb
Redshift: 0.028546
MW E(B-V):

Host

Name: 48970
Right ascension: 13h48m21.84s
Declination: -13d33m41.76s
Redshift: None
Photometric Redshift: 0.029

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	5.13
Transient MWEBV	processed	0.05
Host match	processed	5.85
Host information	processed	0.2
Host MWEBV	processed	0.11
Global aperture construction	processed	0.99
Global aperture photometry	processed	3.95
Validate global photometry	processed	12.29
Global host SED inference	processed	473.17
Local aperture photometry	processed	4.81
Validate local photometry	processed	0.02
Local host SED inference	processed	693.54

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) = 13h48m23.52s, -13d33m45.74s
semi major axis, semi minor axis (arcsec) = 3.49, 3.49
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
PanSTARRS_g	21.85	0.83	20.551	0.041	AB
PanSTARRS_r	47.58	1.35	19.706	0.031	AB
PanSTARRS_i	68.29	2.44	19.314	0.039	AB
PanSTARRS_z	83.52	2.88	19.096	0.037	AB
PanSTARRS_y	75.78	6.69	19.201	0.096	AB
2MASS_J	34.17	83.65	19.171	2.658	Vega
2MASS_H	134.45	130.8	17.211	1.056	Vega
2MASS_K	82.75	159.66	17.268	2.095	Vega

Aperture details

RA, DEC (J2000) = 13h48m21.75s, -13d33m44.57s
semi major axis, semi minor axis (arcsec) = 27.91, 18.69
angle (degrees, anti-clockwise from east) = -73.51

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	170.56	12.98	18.320	0.083	AB
PanSTARRS_g	4942.96	5.67	14.665	0.001	AB
PanSTARRS_r	9420.41	9.63	13.965	0.001	AB
PanSTARRS_i	14469.15	15.67	13.499	0.001	AB
PanSTARRS_z	18396.02	20.33	13.238	0.001	AB
PanSTARRS_y	21109.46	45.28	13.089	0.002	AB
2MASS_J	30265.49	553.53	11.803	0.020	Vega
2MASS_K	30855.8	1052.28	10.839	0.037	Vega
WISE_W1	14684.61	135.79	10.784	0.010	Vega
WISE_W4	4790.79	1027.29	8.079	0.233	Vega

Imaging data

Click the image to load the interactive plot.

Spectral Energy Distribution

Click the image to load the interactive plot.

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.586	8.723	8.845
{\rm log}_{10}({\rm SFR})	-2.904	-2.215	-1.649
{\rm log}_{10}({\rm sSFR})	-11.591	-10.934	-10.314
{\rm stellar\ age}	7.452	9.089	12.533

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.750	-1.273	-0.795
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.915	-1.601	-0.093

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.531	0.862	1.143
\delta	-0.279	0.062	0.280
\tau_1/\tau_2	0.612	0.992	1.374
Q_{PAH}	0.587	2.061	4.876
U_{min}	3.092	7.964	15.380
{\rm log}_{10}(\gamma_e)\,	-3.176	-1.988	-0.575

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.913	-0.635	-0.045
{\rm log}_{10}(\tau_{AGN})\,	1.062	1.553	1.995

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-3.155	-2.151	-1.568
0.03-0.10 Gyr	-3.439	-2.414	-1.688
0.10-0.33 Gyr	-4.260	-2.667	-1.854
0.33-1.10 Gyr	-4.991	-2.729	-1.726
1.10-3.63 Gyr	-4.521	-2.314	-1.394
3.63-12.04 Gyr	-2.595	-1.337	-1.068
12.04-13.37 Gyr	-1.446	-0.653	-0.078

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.923	10.973	11.049
{\rm log}_{10}({\rm SFR})	-0.509	-0.093	0.362
{\rm log}_{10}({\rm sSFR})	-11.477	-11.098	-10.605
{\rm stellar\ age}	8.233	9.837	12.367

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.491	-0.319	-0.170
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.692	-1.032	-0.038

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.074	0.209	0.350
\delta	-0.258	0.078	0.301
\tau_1/\tau_2	0.534	0.928	1.352
Q_{PAH}	0.233	0.774	1.966
U_{min}	2.424	6.653	13.561
{\rm log}_{10}(\gamma_e)\,	-3.527	-2.856	-1.924

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.713	-2.084	-1.581
{\rm log}_{10}(\tau_{AGN})\,	1.010	1.307	1.718

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.722	-0.307	0.029
0.03-0.10 Gyr	-0.645	-0.055	0.488
0.10-0.33 Gyr	-1.279	-0.333	0.189
0.33-1.10 Gyr	-1.607	-0.539	-0.007
1.10-3.63 Gyr	-1.549	-0.421	0.204
3.63-12.04 Gyr	-0.029	1.014	1.184
12.04-13.37 Gyr	1.075	1.719	2.144