2025sxb

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Information

Transient

Name: AT2025sxb
Right ascension: 1h39m48.24s
Declination: -4d13m21.59s
Discovery Date: July 30, 2025, 2:58 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.019

Host

Name:
Right ascension: 1h39m48.48s
Declination: -4d13m12.13s
Redshift: None
Photometric Redshift: 0.102

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	44.8
Transient MWEBV	processed	0.14
Host match	processed	7.34
Host information	processed	0.15
Host MWEBV	processed	0.07
Global aperture construction	processed	0.72
Global aperture photometry	processed	6.5
Validate global photometry	processed	18.47
Global host SED inference	processed	411.53
Local aperture photometry	processed	7.56
Validate local photometry	processed	0.03
Local host SED inference	not enough filters	23.38

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) = 1h39m48.24s, -4d13m21.59s
semi major axis, semi minor axis (arcsec) = 1.06, 1.06
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
DES_z	1.03	0.28	23.866	0.293	AB
PanSTARRS_y	3.53	1.8	22.529	0.553	AB

Aperture details

RA, DEC (J2000) = 1h39m48.45s, -4d13m12.00s
semi major axis, semi minor axis (arcsec) = 11.17, 9.51
angle (degrees, anti-clockwise from east) = -99.14

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	34.26	5.76	20.063	0.183	AB
GALEX_NUV	56.82	4.65	19.514	0.089	AB
SDSS_u	50.44	9.13	19.643	0.197	AB
SDSS_g	384.73	6.04	17.437	0.017	AB
DES_g	392.19	0.9	17.416	0.002	AB
PanSTARRS_g	383.11	2.57	17.442	0.007	AB
SDSS_r	631.05	8.17	16.900	0.014	AB
PanSTARRS_r	629.69	3.21	16.902	0.006	AB
DES_r	691.78	1.44	16.800	0.002	AB
SDSS_i	916.57	11.08	16.495	0.013	AB
PanSTARRS_i	864.98	2.82	16.557	0.004	AB
PanSTARRS_z	989.26	5.78	16.412	0.006	AB
SDSS_z	1150.13	28.31	16.248	0.027	AB
DES_z	1049.67	4.74	16.347	0.005	AB
PanSTARRS_y	1169.54	17.46	16.230	0.016	AB
2MASS_J	1436.61	219.59	15.112	0.166	Vega
2MASS_H	1752.29	385.38	14.423	0.239	Vega
2MASS_K	1190.63	405.44	14.373	0.370	Vega
WISE_W1	682.14	19.28	14.116	0.031	Vega
WISE_W2	497.96	24.29	13.818	0.053	Vega
WISE_W3	1517.8	106.69	10.773	0.076	Vega
WISE_W4	1583.77	611.11	9.281	0.419	Vega

Imaging data

Click the image to load the interactive plot.

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Data not available

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.637	10.678	10.747
{\rm log}_{10}({\rm SFR})	-0.025	0.178	0.409
{\rm log}_{10}({\rm sSFR})	-10.712	-10.497	-10.280
{\rm stellar\ age}	7.222	8.109	10.472

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.781	-0.604	-0.476
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.559	-0.109	0.265

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.054	0.108	0.196
\delta	-0.579	-0.185	0.107
\tau_1/\tau_2	0.745	1.153	1.536
Q_{PAH}	1.054	2.721	4.805
U_{min}	2.252	7.017	14.445
{\rm log}_{10}(\gamma_e)\,	-3.076	-1.935	-0.798

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.640	-1.667	-1.231
{\rm log}_{10}(\tau_{AGN})\,	1.303	1.650	1.911

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.027	0.130	0.264
0.03-0.10 Gyr	-0.113	0.202	0.505
0.10-0.33 Gyr	-0.249	0.126	0.382
0.33-1.06 Gyr	-0.348	0.095	0.337
1.06-3.44 Gyr	-0.509	0.092	0.456
3.44-11.18 Gyr	0.381	0.826	0.931
11.18-12.42 Gyr	0.698	1.226	1.788