2025ahem

Download data

Information

Transient

Name: SN2025ahem
Right ascension: 11h38m50.14s
Declination: 66d56m23.15s
Discovery Date: Dec. 12, 2025, 10:41 a.m.
Classification: SN Ia
Redshift: 0.052724
MW E(B-V): 0.009

Host

Name: 3140662
Right ascension: 11h38m49.95s
Declination: 66d56m16.73s
Redshift: 0.053335
Photometric Redshift:

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	16.67
Transient MWEBV	processed	0.06
Host match	processed	4.88
Host information	processed	0.08
Host MWEBV	processed	0.05
Global aperture construction	processed	0.68
Global aperture photometry	failed	0.05
Validate global photometry	not processed	14.35
Global host SED inference	not processed	543.48
Local aperture photometry	failed	0.01
Validate local photometry	not processed	0.03
Local host SED inference	not processed	433.82

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) = 11h38m50.14s, 66d56m23.15s
semi major axis, semi minor axis (arcsec) = 1.93, 1.93
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	5.56	1.56	22.037	0.304	AB
SDSS_g	27.59	1.5	20.298	0.059	AB
PanSTARRS_g	29.13	0.59	20.239	0.022	AB
SDSS_r	60.23	2.28	19.450	0.041	AB
PanSTARRS_r	61.79	1.05	19.423	0.018	AB
SDSS_i	86.83	2.87	19.053	0.036	AB
PanSTARRS_i	83.97	0.8	19.090	0.010	AB
PanSTARRS_z	107.88	1.33	18.818	0.013	AB
SDSS_z	103.4	6.9	18.864	0.072	AB
PanSTARRS_y	132.62	3.6	18.593	0.029	AB

Aperture details

RA, DEC (J2000) = 11h38m49.92s, 66d56m16.94s
semi major axis, semi minor axis (arcsec) = 16.65, 9.04
angle (degrees, anti-clockwise from east) = -25.59

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_NUV	66.75	1.44	19.339	0.023	AB
SDSS_u	301.7	10.21	17.701	0.037	AB
SDSS_r	3454.85	16.68	15.054	0.005	AB
PanSTARRS_r	3471.95	6.75	15.049	0.002	AB
SDSS_i	4930.32	20.68	14.668	0.005	AB
PanSTARRS_i	4982.56	5.14	14.656	0.001	AB
PanSTARRS_z	6058.25	8.49	14.444	0.002	AB
SDSS_z	6388.15	45.26	14.387	0.008	AB
2MASS_H	12245.87	359.41	12.312	0.032	Vega
2MASS_K	10262.4	415.36	12.034	0.044	Vega
WISE_W1	4871.66	34.89	11.982	0.008	Vega
WISE_W3	2121.27	114.01	10.410	0.058	Vega
WISE_W4	2296.21	563.39	8.877	0.266	Vega

Imaging data

Click the image to load the interactive plot.

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.173	9.293	9.411
{\rm log}_{10}({\rm SFR})	-2.059	-1.377	-0.799
{\rm log}_{10}({\rm sSFR})	-11.356	-10.667	-10.110
{\rm stellar\ age}	6.647	7.906	11.215

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.156	-0.591	-0.153
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.715	-0.213	0.358

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.376	0.792	1.256
\delta	-0.491	-0.051	0.237
\tau_1/\tau_2	0.622	0.966	1.315
Q_{PAH}	0.783	2.699	5.400
U_{min}	2.936	7.984	14.771
{\rm log}_{10}(\gamma_e)\,	-3.034	-1.893	-0.811

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.979	-1.057	-0.354
{\rm log}_{10}(\tau_{AGN})\,	1.012	1.446	1.925

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.109	-1.310	-0.692
0.03-0.10 Gyr	-2.406	-1.515	-0.864
0.10-0.33 Gyr	-2.659	-1.612	-0.964
0.33-1.08 Gyr	-2.661	-1.508	-0.861
1.08-3.57 Gyr	-2.395	-1.075	-0.627
3.57-11.74 Gyr	-1.169	-0.628	-0.448
11.74-13.04 Gyr	-1.005	-0.389	0.413

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.955	11.033	11.108
{\rm log}_{10}({\rm SFR})	-0.597	-0.108	0.280
{\rm log}_{10}({\rm sSFR})	-11.674	-11.149	-10.732
{\rm stellar\ age}	7.953	10.538	12.320

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.684	-0.476	-0.328
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.787	-0.950	0.196

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.179	0.311	0.506
\delta	-0.714	-0.398	-0.099
\tau_1/\tau_2	0.362	0.795	1.269
Q_{PAH}	0.152	0.460	1.034
U_{min}	2.299	6.585	13.278
{\rm log}_{10}(\gamma_e)\,	-3.642	-3.140	-2.516

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.809	-1.832	-1.480
{\rm log}_{10}(\tau_{AGN})\,	0.859	1.063	1.598

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.822	-0.151	0.151
0.03-0.10 Gyr	-1.519	-0.151	0.360
0.10-0.33 Gyr	-2.417	-0.259	0.393
0.33-1.08 Gyr	-3.166	-0.625	0.145
1.08-3.57 Gyr	-2.693	-0.542	0.395
3.57-11.74 Gyr	-0.802	0.880	1.214
11.74-13.04 Gyr	1.123	1.969	2.233