2025syl

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Information

Transient

Name: AT2025syl
Right ascension: 20h07m04.49s
Declination: -4d55m39.52s
Discovery Date: Aug. 2, 2025, 12:02 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.181

Host

Name:
Right ascension: 20h07m04.66s
Declination: -4d55m38.64s
Redshift: 0.059569
Photometric Redshift:

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	36.14
Transient MWEBV	processed	0.06
Host match	processed	7.09
Host information	processed	0.17
Host MWEBV	processed	0.06
Global aperture construction	processed	0.67
Global aperture photometry	processed	3.28
Validate global photometry	processed	10.31
Global host SED inference	processed	774.95
Local aperture photometry	processed	3.85
Validate local photometry	processed	0.02
Local host SED inference	processed	609.92

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) = 20h07m04.49s, -4d55m39.52s
semi major axis, semi minor axis (arcsec) = 1.74, 1.74
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
PanSTARRS_g	152.25	0.46	18.444	0.003	AB
PanSTARRS_r	195.41	0.54	18.173	0.003	AB
PanSTARRS_z	236.36	1.43	17.966	0.007	AB
PanSTARRS_y	273.71	3.32	17.807	0.013	AB

Aperture details

RA, DEC (J2000) = 20h07m04.59s, -4d55m38.14s
semi major axis, semi minor axis (arcsec) = 7.54, 5.99
angle (degrees, anti-clockwise from east) = -59.51

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	187.39	9.45	18.218	0.055	AB
GALEX_NUV	159.37	1.56	18.394	0.011	AB
PanSTARRS_g	909.26	1.66	16.503	0.002	AB
PanSTARRS_r	1263.81	1.95	16.146	0.002	AB
PanSTARRS_z	1876.72	5.43	15.717	0.003	AB
PanSTARRS_y	2116.0	12.68	15.586	0.007	AB
2MASS_J	2409.82	183.57	14.550	0.083	Vega
2MASS_H	2470.48	286.84	14.050	0.126	Vega
2MASS_K	2419.27	315.88	13.603	0.142	Vega
WISE_W1	986.37	30.63	13.716	0.034	Vega
WISE_W2	651.23	32.75	13.527	0.055	Vega
WISE_W3	1659.26	104.44	10.676	0.068	Vega
WISE_W4	4026.05	809.52	8.268	0.218	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})\,	8.870	9.247	9.418
{\rm log}_{10}({\rm SFR})	-0.431	0.214	0.770
{\rm log}_{10}({\rm sSFR})	-9.736	-9.073	-8.050
{\rm stellar\ age}	0.233	3.173	6.067

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.824	-1.453	-0.764
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.657	-0.762	0.019

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.113	0.348	0.669
\delta	-0.623	-0.160	0.222
\tau_1/\tau_2	0.605	1.057	1.471
Q_{PAH}	0.520	2.075	4.393
U_{min}	3.106	8.586	16.479
{\rm log}_{10}(\gamma_e)\,	-3.419	-1.948	-0.566

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.110	-2.110	-0.724
{\rm log}_{10}(\tau_{AGN})\,	0.973	1.536	1.938

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.701	-0.309	0.064
0.03-0.10 Gyr	-0.502	0.300	0.913
0.10-0.33 Gyr	-1.296	0.017	0.544
0.33-1.08 Gyr	-2.925	-0.583	-0.045
1.08-3.55 Gyr	-3.948	-0.938	-0.372
3.55-11.67 Gyr	-4.692	-1.296	-0.584
11.67-12.96 Gyr	-4.824	-1.308	-0.457

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.192	10.367	10.511
{\rm log}_{10}({\rm SFR})	0.908	1.106	1.397
{\rm log}_{10}({\rm sSFR})	-9.487	-9.231	-8.886
{\rm stellar\ age}	6.332	7.616	11.036

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.397	-1.000	-0.701
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.962	-0.112	0.316

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.016	0.054	0.131
\delta	-0.615	-0.200	0.173
\tau_1/\tau_2	0.602	1.098	1.573
Q_{PAH}	0.301	1.126	3.209
U_{min}	2.662	8.508	16.182
{\rm log}_{10}(\gamma_e)\,	-3.311	-2.325	-1.148

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.031	-2.975	-2.143
{\rm log}_{10}(\tau_{AGN})\,	1.179	1.634	1.958

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.279	-0.064	0.304
0.03-0.10 Gyr	1.049	1.260	1.559
0.10-0.33 Gyr	-2.183	-0.263	0.531
0.33-1.08 Gyr	-3.057	-0.449	0.212
1.08-3.55 Gyr	-2.607	-0.301	0.268
3.55-11.67 Gyr	-0.697	0.343	0.598
11.67-12.96 Gyr	-0.341	0.697	1.542