2025xby results

2025xby results

Information

Transient

Name:	`SN2025xby`
Right ascension:	`21h51m45.45s`
Declination:	`-6d54m27.79s`
Discovery Date:	`Sept. 8, 2025, 5:11 a.m.`
Classification:	`SN Ia`
Redshift:	`0.057723`
MW E(B-V):	`0.027`

Host

Name:	`1027097`
Right ascension:	`21h51m45.73s`
Declination:	`-6d54m26.68s`
Redshift:	`0.057723`
Photometric Redshift:	`None`

Cutout Download Report

Downloaded	Unavailable
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_z	DES_i DES_Y

Processing Status: blocked

Task Name	Status	Time (s)
Cutout download	processed	17.81
Transient MWEBV	processed	0.05
Host match	processed	4.23
Host information	processed	0.13
Host MWEBV	processed	0.04
Global aperture construction	processed	0.65
Global aperture photometry	processed	5.61
Validate global photometry	processed	14.25
Global host SED inference	processed	411.14
Local aperture photometry	processed	6.25
Validate local photometry	processed	0.03
Local host SED inference	processed	424.47

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	21h51m45.45s, -6d54m27.79s
semi major axis, semi minor axis (arcsec):	1.79, 1.79
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	7.04	1.84	21.781	0.284	AB
SDSS_g	43.5	1.82	19.804	0.045	AB
DES_g	47.46	0.38	19.709	0.009	AB
PanSTARRS_g	44.0	0.39	19.791	0.010	AB
SDSS_r	91.49	2.63	18.997	0.031	AB
PanSTARRS_r	89.09	0.48	19.025	0.006	AB
DES_r	102.86	1.19	18.869	0.013	AB
SDSS_i	137.25	3.36	18.556	0.027	AB
PanSTARRS_i	128.23	0.55	18.630	0.005	AB
PanSTARRS_z	152.77	1.45	18.440	0.010	AB
SDSS_z	177.5	6.61	18.277	0.040	AB
DES_z	179.88	2.61	18.263	0.016	AB
PanSTARRS_y	184.2	3.98	18.237	0.023	AB

Aperture details

RA, DEC (J2000):	21h51m45.72s, -6d54m26.76s
semi major axis, semi minor axis (arcsec):	13.44, 4.6
angle (degrees, anti-clockwise from east):	-88.47

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	12.6	2.78	21.149	0.239	AB
GALEX_NUV	15.64	1.06	20.914	0.074	AB
SDSS_g	405.19	5.93	17.381	0.016	AB
DES_g	440.85	1.21	17.289	0.003	AB
PanSTARRS_g	442.69	1.66	17.285	0.004	AB
PanSTARRS_r	912.17	2.03	16.500	0.002	AB
DES_r	992.47	3.8	16.408	0.004	AB
PanSTARRS_i	1341.47	2.35	16.081	0.002	AB
PanSTARRS_z	1617.45	6.26	15.878	0.004	AB
DES_z	1809.16	8.41	15.756	0.005	AB
PanSTARRS_y	2051.39	17.28	15.620	0.009	AB
2MASS_J	2381.33	210.24	14.563	0.096	Vega
2MASS_H	3673.77	350.09	13.620	0.103	Vega
2MASS_K	3216.62	377.1	13.294	0.127	Vega
WISE_W1	1373.29	26.57	13.357	0.021	Vega
WISE_W2	830.02	30.95	13.263	0.040	Vega
WISE_W3	1846.51	113.81	10.560	0.067	Vega
WISE_W4	1575.06	690.33	9.287	0.476	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.267	9.381	9.507
{\rm log}_{10}({\rm SFR})	-1.472	-1.048	-0.632
{\rm log}_{10}({\rm sSFR})	-10.929	-10.431	-9.942
{\rm stellar\ age}	5.860	7.200	8.815

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.122	-0.658	-0.303
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.487	0.161	0.380

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.372	0.640	0.976
\delta	-0.784	-0.423	-0.065
\tau_1/\tau_2	0.642	0.977	1.293
Q_{PAH}	1.065	3.215	5.381
U_{min}	2.934	7.931	14.390
{\rm log}_{10}(\gamma_e)\,	-3.047	-2.041	-0.670

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.509	-1.407	-0.551
{\rm log}_{10}(\tau_{AGN})\,	0.877	1.393	1.921

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.256	-0.906	-0.602
0.03-0.10 Gyr	-1.862	-1.174	-0.624
0.10-0.33 Gyr	-1.958	-1.132	-0.585
0.33-1.08 Gyr	-1.809	-0.948	-0.507
1.08-3.55 Gyr	-1.463	-0.674	-0.406
3.55-11.69 Gyr	-0.822	-0.509	-0.327
11.69-12.99 Gyr	-1.002	-0.460	0.168

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.481	10.523	10.608
{\rm log}_{10}({\rm SFR})	-1.071	-0.758	-0.492
{\rm log}_{10}({\rm sSFR})	-11.629	-11.291	-11.006
{\rm stellar\ age}	7.900	9.156	12.026

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.519	-0.357	-0.218
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	0.062	0.290	0.422

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.189	0.277	0.393
\delta	-0.646	-0.345	-0.063
\tau_1/\tau_2	0.435	0.823	1.228
Q_{PAH}	0.815	2.309	4.388
U_{min}	2.478	7.559	15.119
{\rm log}_{10}(\gamma_e)\,	-3.025	-1.832	-0.912

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.404	-3.446	-2.408
{\rm log}_{10}(\tau_{AGN})\,	1.025	1.552	1.924

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.708	-0.430	-0.185
0.03-0.10 Gyr	-2.789	-1.194	-0.646
0.10-0.33 Gyr	-2.844	-1.293	-0.695
0.33-1.08 Gyr	-2.561	-1.201	-0.628
1.08-3.55 Gyr	-2.004	-0.762	-0.087
3.55-11.69 Gyr	-0.407	0.629	0.761
11.69-12.99 Gyr	0.588	1.192	1.721