2025sde

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Information

Transient

Name: AT2025sde
Right ascension: 1h56m25.41s
Declination: 11d32m27.03s
Discovery Date: July 25, 2025, 9:40 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.097

Host

Name:
Right ascension: 1h56m25.28s
Declination: 11d32m26.13s
Redshift: None
Photometric Redshift: 0.100

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	15.12
Transient MWEBV	processed	0.06
Host match	processed	6.23
Host information	processed	0.15
Host MWEBV	processed	0.04
Global aperture construction	processed	0.64
Global aperture photometry	processed	5.12
Validate global photometry	processed	12.34
Global host SED inference	processed	406.13
Local aperture photometry	processed	5.54
Validate local photometry	processed	0.02
Local host SED inference	processed	461.79

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) = 1h56m25.41s, 11d32m27.03s
semi major axis, semi minor axis (arcsec) = 1.09, 1.09
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
DES_r	21.51	0.42	20.568	0.021	AB
PanSTARRS_z	38.67	0.71	19.932	0.020	AB
DES_z	48.6	1.74	19.683	0.039	AB
PanSTARRS_y	53.45	1.78	19.580	0.036	AB

Aperture details

RA, DEC (J2000) = 1h56m25.27s, 11d32m26.35s
semi major axis, semi minor axis (arcsec) = 8.78, 3.7
angle (degrees, anti-clockwise from east) = -58.42

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	4.93	1.61	22.167	0.354	AB
GALEX_NUV	7.83	1.66	21.665	0.230	AB
DES_g	157.11	0.63	18.409	0.004	AB
PanSTARRS_g	183.77	1.32	18.239	0.008	AB
PanSTARRS_r	387.34	2.22	17.430	0.006	AB
DES_r	390.86	1.86	17.420	0.005	AB
PanSTARRS_i	628.95	1.89	16.903	0.003	AB
PanSTARRS_z	820.83	3.69	16.614	0.005	AB
DES_z	828.83	7.33	16.604	0.010	AB
PanSTARRS_y	1005.67	9.22	16.394	0.010	AB
WISE_W1	955.52	18.33	13.750	0.021	Vega
WISE_W2	782.21	24.01	13.328	0.033	Vega
WISE_W3	2365.2	86.98	10.291	0.040	Vega
WISE_W4	3559.63	485.43	8.401	0.148	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})\,	9.289	9.450	9.608
{\rm log}_{10}({\rm SFR})	-1.179	-0.493	0.041
{\rm log}_{10}({\rm sSFR})	-10.631	-9.977	-9.369
{\rm stellar\ age}	4.339	6.792	8.640

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.122	-0.330	0.043
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.305	-0.565	0.155

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.484	1.053	1.674
\delta	-0.407	-0.024	0.254
\tau_1/\tau_2	0.633	1.008	1.373
Q_{PAH}	0.620	2.092	5.011
U_{min}	2.867	8.071	15.065
{\rm log}_{10}(\gamma_e)\,	-3.046	-1.977	-0.740

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.232	-0.891	0.079
{\rm log}_{10}(\tau_{AGN})\,	1.086	1.456	1.932

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.270	-0.491	0.055
0.03-0.10 Gyr	-1.452	-0.636	0.069
0.10-0.33 Gyr	-1.731	-0.862	-0.182
0.33-1.06 Gyr	-1.868	-0.879	-0.281
1.06-3.44 Gyr	-1.940	-0.711	-0.340
3.44-11.21 Gyr	-1.249	-0.480	-0.253
11.21-12.45 Gyr	-1.282	-0.423	0.291

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.749	10.793	10.867
{\rm log}_{10}({\rm SFR})	-0.158	0.137	0.425
{\rm log}_{10}({\rm sSFR})	-10.998	-10.659	-10.373
{\rm stellar\ age}	7.631	9.234	11.675

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.435	-0.246	-0.079
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.966	-0.618	-0.305

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.303	0.430	0.594
\delta	-0.638	-0.367	-0.162
\tau_1/\tau_2	0.502	0.888	1.295
Q_{PAH}	0.451	1.242	2.522
U_{min}	2.681	7.523	14.390
{\rm log}_{10}(\gamma_e)\,	-3.118	-2.191	-1.350

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.636	-1.410	-1.195
{\rm log}_{10}(\tau_{AGN})\,	1.037	1.293	1.570

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.248	0.452	0.652
0.03-0.10 Gyr	-1.646	-0.208	0.315
0.10-0.33 Gyr	-2.533	-0.694	-0.091
0.33-1.06 Gyr	-2.695	-0.909	-0.216
1.06-3.44 Gyr	-2.090	-0.565	0.169
3.44-11.21 Gyr	-0.493	0.852	1.028
11.21-12.45 Gyr	0.932	1.583	2.001