2025syg

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Information

Transient

Name: AT2025syg
Right ascension: 0h57m45.54s
Declination: -22d22m40.90s
Discovery Date: July 30, 2025, 3:47 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.012

Host

Name:
Right ascension: 0h57m45.52s
Declination: -22d22m41.54s
Redshift: 0.103020
Photometric Redshift: 0.112

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	42.96
Transient MWEBV	processed	0.13
Host match	processed	8.38
Host information	processed	0.19
Host MWEBV	processed	0.04
Global aperture construction	processed	0.63
Global aperture photometry	processed	4.52
Validate global photometry	processed	13.04
Global host SED inference	processed	439.77
Local aperture photometry	processed	5.47
Validate local photometry	processed	0.02
Local host SED inference	processed	626.22

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) = 0h57m45.54s, -22d22m40.90s
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	105.79	1.26	18.839	0.013	AB
PanSTARRS_y	100.62	2.09	18.893	0.023	AB

Aperture details

RA, DEC (J2000) = 0h57m45.50s, -22d22m41.28s
semi major axis, semi minor axis (arcsec) = 5.0, 4.36
angle (degrees, anti-clockwise from east) = -26.92

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	28.43	4.89	20.266	0.187	AB
GALEX_NUV	38.58	3.43	19.934	0.097	AB
DES_g	166.43	0.46	18.347	0.003	AB
PanSTARRS_g	160.59	1.18	18.386	0.008	AB
PanSTARRS_r	242.63	1.66	17.938	0.007	AB
DES_r	267.3	0.66	17.832	0.003	AB
PanSTARRS_i	319.04	2.07	17.640	0.007	AB
PanSTARRS_z	355.72	3.67	17.522	0.011	AB
DES_z	372.65	2.54	17.472	0.007	AB
PanSTARRS_y	409.42	9.02	17.370	0.024	AB
2MASS_J	420.89	112.09	16.445	0.289	Vega
2MASS_H	638.38	188.58	15.520	0.321	Vega
2MASS_K	478.85	212.34	15.362	0.481	Vega
WISE_W1	186.53	12.02	15.524	0.070	Vega
WISE_W2	138.09	14.46	15.211	0.114	Vega
WISE_W3	385.29	67.12	12.262	0.189	Vega
WISE_W4	364.12	338.6	10.877	1.010	Vega

Imaging data

Click the image to load the interactive plot.

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})\,	9.085	9.420	9.700
{\rm log}_{10}({\rm SFR})	-0.406	0.002	0.490
{\rm log}_{10}({\rm sSFR})	-9.984	-9.401	-8.737
{\rm stellar\ age}	1.970	5.779	8.295

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.534	-0.700	-0.089
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.252	-0.636	0.157

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.273	0.506	0.877
\delta	-0.730	-0.376	0.084
\tau_1/\tau_2	0.422	0.926	1.449
Q_{PAH}	0.602	1.728	4.078
U_{min}	3.198	8.371	15.555
{\rm log}_{10}(\gamma_e)\,	-3.408	-2.367	-0.854

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.553	-1.584	-0.652
{\rm log}_{10}(\tau_{AGN})\,	1.014	1.476	1.953

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.309	0.184	0.474
0.03-0.10 Gyr	-1.422	-0.297	0.561
0.10-0.33 Gyr	-2.201	-0.715	-0.028
0.33-1.06 Gyr	-2.544	-0.736	0.012
1.06-3.44 Gyr	-2.547	-0.791	-0.283
3.44-11.17 Gyr	-2.245	-0.719	-0.208
11.17-12.42 Gyr	-1.953	-0.615	0.311

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.071	10.135	10.227
{\rm log}_{10}({\rm SFR})	-0.019	0.266	0.542
{\rm log}_{10}({\rm sSFR})	-10.173	-9.868	-9.590
{\rm stellar\ age}	6.674	7.427	9.679

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.989	-0.724	-0.540
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.072	0.168	0.399

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.039	0.097	0.196
\delta	-0.680	-0.247	0.121
\tau_1/\tau_2	0.628	1.033	1.406
Q_{PAH}	0.611	1.756	3.623
U_{min}	2.829	7.735	14.955
{\rm log}_{10}(\gamma_e)\,	-2.193	-1.116	-0.359

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.960	-2.653	-1.691
{\rm log}_{10}(\tau_{AGN})\,	1.049	1.547	1.925

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.998	-0.494	-0.262
0.03-0.10 Gyr	0.084	0.406	0.697
0.10-0.33 Gyr	-0.449	0.147	0.411
0.33-1.06 Gyr	-0.948	-0.243	0.032
1.06-3.44 Gyr	-0.932	-0.210	0.083
3.44-11.17 Gyr	-0.065	0.264	0.386
11.17-12.42 Gyr	0.014	0.525	1.164