2025ihm

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Information

Transient

Name: SN2025ihm
Right ascension: 23h53m08.74s
Declination: 46d50m53.60s
Discovery Date: April 23, 2025, 11:55 a.m.
Classification: SN Ia
Redshift: 0.047000
MW E(B-V): 0.105

Host

Name: 2025ihm
Right ascension: 23h53m08.60s
Declination: 46d50m50.27s
Redshift: 0.059432
Photometric Redshift: 0.044

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	0.3
Transient MWEBV	processed	0.17
Host match	processed	2.49
Host information	processed	0.09
Host MWEBV	processed	0.08
Global aperture construction	processed	0.73
Global aperture photometry	processed	4.25
Validate global photometry	processed	12.66
Global host SED inference	processed	390.36
Local aperture photometry	processed	4.32
Validate local photometry	processed	0.02
Local host SED inference	processed	445.63

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) = 23h53m08.74s, 46d50m53.60s
semi major axis, semi minor axis (arcsec) = 1.74, 1.74
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	31.69	0.48	20.148	0.017	AB
PanSTARRS_r	65.14	0.91	19.365	0.015	AB
PanSTARRS_i	92.04	0.74	18.990	0.009	AB
PanSTARRS_z	113.46	1.43	18.763	0.014	AB
PanSTARRS_y	151.56	3.85	18.449	0.028	AB

Aperture details

RA, DEC (J2000) = 23h53m08.59s, 46d50m50.32s
semi major axis, semi minor axis (arcsec) = 6.75, 5.57
angle (degrees, anti-clockwise from east) = -40.3

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_NUV	28.92	3.49	20.247	0.131	AB
PanSTARRS_g	632.58	1.72	16.897	0.003	AB
PanSTARRS_r	1300.83	3.23	16.114	0.003	AB
PanSTARRS_i	1904.76	2.63	15.700	0.001	AB
PanSTARRS_z	2418.72	5.01	15.441	0.002	AB
PanSTARRS_y	3106.63	13.43	15.169	0.005	AB
2MASS_J	3788.41	149.79	14.059	0.043	Vega
2MASS_H	5363.61	226.75	13.209	0.046	Vega
2MASS_K	5022.83	250.39	12.810	0.054	Vega
WISE_W1	2639.58	63.86	12.647	0.026	Vega
WISE_W2	1850.54	80.74	12.393	0.047	Vega
WISE_W3	9242.62	153.94	8.812	0.018	Vega

Imaging data

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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})\,	9.227	9.369	9.492
{\rm log}_{10}({\rm SFR})	-1.609	-0.963	-0.321
{\rm log}_{10}({\rm sSFR})	-11.055	-10.321	-9.628
{\rm stellar\ age}	4.913	7.005	8.774

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.438	-0.567	-0.106
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.827	0.099	0.359

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.270	0.810	1.308
\delta	-0.469	-0.120	0.201
\tau_1/\tau_2	0.653	0.984	1.344
Q_{PAH}	0.790	2.794	5.176
U_{min}	3.080	8.184	14.704
{\rm log}_{10}(\gamma_e)\,	-2.995	-1.876	-0.704

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.359	-1.185	-0.200
{\rm log}_{10}(\tau_{AGN})\,	1.009	1.579	2.011

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.622	-0.928	-0.455
0.03-0.10 Gyr	-1.896	-1.013	-0.270
0.10-0.33 Gyr	-1.809	-0.943	-0.250
0.33-1.08 Gyr	-1.749	-0.880	-0.380
1.08-3.55 Gyr	-1.606	-0.705	-0.383
3.55-11.67 Gyr	-1.107	-0.579	-0.371
11.67-12.96 Gyr	-1.175	-0.506	0.135

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.667	10.718	10.776
{\rm log}_{10}({\rm SFR})	0.122	0.406	0.770
{\rm log}_{10}({\rm sSFR})	-10.617	-10.304	-9.933
{\rm stellar\ age}	7.219	8.021	10.107

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.334	-0.169	-0.026
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.274	0.171	0.337

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.276	0.394	0.560
\delta	-0.652	-0.340	-0.061
\tau_1/\tau_2	0.753	1.136	1.502
Q_{PAH}	0.941	2.187	3.930
U_{min}	2.959	7.779	14.337
{\rm log}_{10}(\gamma_e)\,	-2.217	-1.234	-0.576

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.068	-1.408	-1.026
{\rm log}_{10}(\tau_{AGN})\,	1.369	1.799	2.021

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.084	0.198	0.383
0.03-0.10 Gyr	0.109	0.468	0.899
0.10-0.33 Gyr	-0.123	0.296	0.603
0.33-1.08 Gyr	-0.417	0.071	0.368
1.08-3.55 Gyr	-0.270	0.287	0.604
3.55-11.67 Gyr	0.554	0.858	0.959
11.67-12.96 Gyr	0.580	1.103	1.682