2025sxi

Download data

Information

Transient

Name: AT2025sxi
Right ascension: 4h28m11.84s
Declination: -7d32m39.26s
Discovery Date: July 23, 2025, 9:49 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.074

Host

Name:
Right ascension: 4h28m12.03s
Declination: -7d32m44.65s
Redshift: None
Photometric Redshift: 0.019

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	50.6
Transient MWEBV	processed	0.1
Host match	processed	7.23
Host information	processed	0.14
Host MWEBV	processed	0.04
Global aperture construction	processed	0.68
Global aperture photometry	processed	5.74
Validate global photometry	processed	14.12
Global host SED inference	processed	428.57
Local aperture photometry	processed	6.4
Validate local photometry	processed	0.03
Local host SED inference	processed	485.53

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) = 4h28m11.84s, -7d32m39.26s
semi major axis, semi minor axis (arcsec) = 5.3, 5.3
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	12.8	3.3	21.132	0.280	AB
DES_g	83.61	0.36	19.094	0.005	AB
PanSTARRS_g	89.85	1.51	19.016	0.018	AB
PanSTARRS_r	130.49	1.67	18.611	0.014	AB
DES_r	126.08	1.03	18.648	0.009	AB
PanSTARRS_i	146.12	1.88	18.488	0.014	AB
PanSTARRS_z	151.57	3.86	18.448	0.028	AB
DES_z	162.07	2.08	18.376	0.014	AB
PanSTARRS_y	183.73	10.36	18.240	0.061	AB
2MASS_J	236.8	102.25	17.069	0.469	Vega
2MASS_H	4.65	130.67	20.864	30.504	Vega
2MASS_K	100.91	212.48	17.052	2.286	Vega

Aperture details

RA, DEC (J2000) = 4h28m12.04s, -7d32m45.42s
semi major axis, semi minor axis (arcsec) = 14.74, 5.59
angle (degrees, anti-clockwise from east) = -38.7

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	39.88	6.07	19.898	0.165	AB
GALEX_NUV	55.35	3.85	19.542	0.075	AB
DES_g	274.41	0.63	17.804	0.003	AB
PanSTARRS_g	263.89	2.57	17.846	0.011	AB
PanSTARRS_r	386.25	2.84	17.433	0.008	AB
DES_r	412.7	1.83	17.361	0.005	AB
PanSTARRS_i	448.37	3.23	17.271	0.008	AB
PanSTARRS_z	487.06	6.57	17.181	0.015	AB
DES_z	542.9	3.68	17.063	0.007	AB
PanSTARRS_y	533.3	17.5	17.083	0.036	AB
2MASS_J	745.46	185.21	15.824	0.270	Vega
2MASS_H	-6.58	235.65			Vega
2MASS_K	682.93	384.95	14.976	0.612	Vega
WISE_W1	229.59	15.69	15.299	0.074	Vega
WISE_W2	137.99	23.83	15.211	0.188	Vega
WISE_W3	390.5	95.88	12.247	0.267	Vega
WISE_W4	274.09	521.41	11.185	2.065	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})\,	8.122	8.251	8.370
{\rm log}_{10}({\rm SFR})	-2.042	-1.615	-1.203
{\rm log}_{10}({\rm sSFR})	-10.379	-9.875	-9.390
{\rm stellar\ age}	4.894	6.839	8.310

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.809	-1.457	-0.957
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.469	-0.086	0.261

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.085	0.346	0.655
\delta	-0.182	0.161	0.323
\tau_1/\tau_2	0.732	1.078	1.428
Q_{PAH}	0.611	2.333	4.623
U_{min}	2.800	7.811	14.766
{\rm log}_{10}(\gamma_e)\,	-3.194	-2.300	-0.952

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.152	-1.251	-0.551
{\rm log}_{10}(\tau_{AGN})\,	0.935	1.370	1.839

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.085	-1.800	-1.504
0.03-0.10 Gyr	-2.108	-1.564	-1.097
0.10-0.33 Gyr	-2.192	-1.600	-1.163
0.33-1.10 Gyr	-2.322	-1.756	-1.370
1.10-3.66 Gyr	-2.168	-1.739	-1.497
3.66-12.16 Gyr	-2.078	-1.703	-1.486
12.16-13.51 Gyr	-2.282	-1.672	-1.172

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.702	8.785	8.872
{\rm log}_{10}({\rm SFR})	-1.248	-1.035	-0.805
{\rm log}_{10}({\rm sSFR})	-10.045	-9.818	-9.577
{\rm stellar\ age}	7.189	8.046	9.779

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.382	-1.064	-0.855
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.860	-1.583	0.250

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.056	0.118	0.232
\delta	-0.584	-0.119	0.202
\tau_1/\tau_2	0.762	1.135	1.499
Q_{PAH}	0.326	1.110	2.602
U_{min}	3.141	7.792	14.465
{\rm log}_{10}(\gamma_e)\,	-2.844	-1.855	-1.097

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.296	-3.184	-2.213
{\rm log}_{10}(\tau_{AGN})\,	1.056	1.546	1.928

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.602	-1.421	-1.275
0.03-0.10 Gyr	-1.184	-0.928	-0.676
0.10-0.33 Gyr	-1.652	-1.221	-0.948
0.33-1.10 Gyr	-2.084	-1.611	-1.328
1.10-3.66 Gyr	-2.087	-1.551	-1.276
3.66-12.16 Gyr	-1.350	-1.117	-0.986
12.16-13.51 Gyr	-1.273	-0.863	-0.344