2025yiw

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Information

Transient

Name: AT2025yiw
Right ascension: 1h47m57.50s
Declination: -6d18m46.33s
Discovery Date: Sept. 2, 2025, 10:58 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.022

Host

Name:
Right ascension: 1h47m57.62s
Declination: -6d18m45.98s
Redshift: None
Photometric Redshift: 0.097

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	17.52
Transient MWEBV	processed	0.1
Host match	processed	6.63
Host information	processed	0.11
Host MWEBV	processed	0.04
Global aperture construction	processed	0.63
Global aperture photometry	processed	6.27
Validate global photometry	processed	17.1
Global host SED inference	processed	429.22
Local aperture photometry	processed	6.62
Validate local photometry	processed	0.03
Local host SED inference	processed	419.15

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) = 1h47m57.50s, -6d18m46.33s
semi major axis, semi minor axis (arcsec) = 1.12, 1.12
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	14.38	0.15	21.006	0.011	AB
PanSTARRS_i	17.51	0.32	20.792	0.020	AB
PanSTARRS_z	19.33	0.6	20.684	0.034	AB
DES_z	19.68	0.56	20.665	0.031	AB
PanSTARRS_y	19.81	1.68	20.658	0.092	AB

Aperture details

RA, DEC (J2000) = 1h47m57.61s, -6d18m45.92s
semi major axis, semi minor axis (arcsec) = 6.16, 4.84
angle (degrees, anti-clockwise from east) = -81.52

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	14.56	3.31	20.992	0.247	AB
GALEX_NUV	16.01	1.68	20.889	0.114	AB
SDSS_u	17.51	5.07	20.792	0.314	AB
SDSS_g	73.47	2.83	19.235	0.042	AB
DES_g	87.03	0.36	19.051	0.004	AB
PanSTARRS_g	82.77	1.26	19.105	0.017	AB
SDSS_r	137.08	4.2	18.558	0.033	AB
PanSTARRS_r	123.53	1.35	18.671	0.012	AB
DES_r	138.7	0.53	18.545	0.004	AB
SDSS_i	173.47	6.13	18.302	0.038	AB
PanSTARRS_z	183.23	2.88	18.243	0.017	AB
SDSS_z	186.12	17.92	18.226	0.105	AB
DES_z	195.23	1.96	18.174	0.011	AB
PanSTARRS_y	170.78	8.13	18.319	0.052	AB
2MASS_J	245.99	147.46	17.028	0.651	Vega
2MASS_H	255.45	247.78	16.514	1.053	Vega
2MASS_K	55.74	268.87	17.697	5.237	Vega
WISE_W1	126.51	11.1	15.946	0.095	Vega
WISE_W2	75.46	15.88	15.867	0.229	Vega
WISE_W3	72.97	57.8	14.068	0.860	Vega
WISE_W4	272.92	394.62	11.190	1.570	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})\,	8.572	8.751	8.885
{\rm log}_{10}({\rm SFR})	-2.046	-1.395	-0.637
{\rm log}_{10}({\rm sSFR})	-10.767	-10.172	-9.348
{\rm stellar\ age}	1.996	5.490	7.449

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.563	-1.014	-0.339
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.485	-0.786	-0.075

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.149	0.411	0.902
\delta	-0.521	-0.121	0.203
\tau_1/\tau_2	0.641	1.015	1.400
Q_{PAH}	1.052	2.738	5.052
U_{min}	2.985	8.221	14.862
{\rm log}_{10}(\gamma_e)\,	-2.888	-1.860	-0.815

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.091	-0.176	0.228
{\rm log}_{10}(\tau_{AGN})\,	1.050	1.503	1.838

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.174	-1.507	-1.083
0.03-0.10 Gyr	-2.296	-1.406	-0.539
0.10-0.33 Gyr	-2.128	-1.270	-0.499
0.33-1.06 Gyr	-2.040	-1.105	-0.536
1.06-3.45 Gyr	-2.428	-1.214	-0.917
3.45-11.24 Gyr	-2.613	-1.290	-0.996
11.24-12.49 Gyr	-2.450	-1.305	-0.676

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.685	9.760	9.859
{\rm log}_{10}({\rm SFR})	-0.604	-0.373	-0.137
{\rm log}_{10}({\rm sSFR})	-10.364	-10.133	-9.911
{\rm stellar\ age}	5.478	6.499	7.622

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.327	-0.922	-0.606
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.753	-0.174	0.330

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.107	0.252	0.430
\delta	0.036	0.256	0.359
\tau_1/\tau_2	0.673	0.984	1.304
Q_{PAH}	1.596	3.466	5.367
U_{min}	2.774	7.895	14.792
{\rm log}_{10}(\gamma_e)\,	-2.721	-1.708	-0.567

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.800	-2.241	-1.269
{\rm log}_{10}(\tau_{AGN})\,	1.041	1.514	1.916

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.843	-0.536	-0.326
0.03-0.10 Gyr	-0.651	-0.327	-0.021
0.10-0.33 Gyr	-0.499	-0.183	0.080
0.33-1.06 Gyr	-0.490	-0.170	0.054
1.06-3.45 Gyr	-0.454	-0.166	0.016
3.45-11.24 Gyr	-0.342	-0.127	0.019
11.24-12.49 Gyr	-0.527	-0.065	0.374