2025snu

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Information

Transient

Name: AT2025snu
Right ascension: 23h17m07.45s
Declination: 0d34m48.95s
Discovery Date: July 24, 2025, 10:26 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.040

Host

Name: 1169737
Right ascension: 23h17m07.45s
Declination: 0d34m49.93s
Redshift: 0.118726
Photometric Redshift: 0.117

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	33.8
Transient MWEBV	processed	0.04
Host match	processed	4.5
Host information	processed	0.15
Host MWEBV	processed	0.04
Global aperture construction	processed	0.73
Global aperture photometry	processed	6.61
Validate global photometry	processed	18.3
Global host SED inference	processed	428.18
Local aperture photometry	processed	7.61
Validate local photometry	processed	0.03
Local host SED inference	not enough filters	21.81

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) = 23h17m07.45s, 0d34m48.95s
semi major axis, semi minor axis (arcsec) = 0.93, 0.93
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	102.51	0.94	18.873	0.010	AB

Aperture details

RA, DEC (J2000) = 23h17m07.45s, 0d34m50.00s
semi major axis, semi minor axis (arcsec) = 10.23, 8.09
angle (degrees, anti-clockwise from east) = -123.05

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	38.24	1.21	19.944	0.034	AB
GALEX_NUV	57.85	0.94	19.494	0.018	AB
SDSS_u	178.4	7.85	18.271	0.048	AB
SDSS_g	351.63	5.63	17.535	0.017	AB
DES_g	390.38	0.84	17.421	0.002	AB
PanSTARRS_g	402.17	1.92	17.389	0.005	AB
SDSS_r	633.34	8.09	16.896	0.014	AB
PanSTARRS_r	642.66	2.77	16.880	0.005	AB
DES_r	677.87	1.11	16.822	0.002	AB
SDSS_i	873.21	11.64	16.547	0.014	AB
PanSTARRS_i	892.25	2.15	16.524	0.003	AB
PanSTARRS_z	997.77	5.5	16.402	0.006	AB
SDSS_z	1014.22	31.99	16.385	0.034	AB
DES_z	1058.81	3.38	16.338	0.003	AB
PanSTARRS_y	1131.86	14.42	16.266	0.014	AB
2MASS_J	1297.38	186.97	15.222	0.156	Vega
2MASS_H	1564.13	276.01	14.547	0.192	Vega
2MASS_K	1703.11	301.91	13.984	0.192	Vega
WISE_W1	833.44	22.72	13.899	0.030	Vega
WISE_W2	568.6	29.64	13.674	0.057	Vega
WISE_W3	2093.15	123.32	10.424	0.064	Vega
WISE_W4	1808.7	727.02	9.137	0.436	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})\,	10.620	10.684	10.753
{\rm log}_{10}({\rm SFR})	1.199	1.351	1.569
{\rm log}_{10}({\rm sSFR})	-9.517	-9.325	-9.084
{\rm stellar\ age}	6.328	7.130	9.141

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.453	-0.299	-0.179
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.649	-0.624	0.131

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.167	0.231	0.365
\delta	-0.912	-0.721	-0.463
\tau_1/\tau_2	0.630	1.040	1.473
Q_{PAH}	0.640	1.498	2.561
U_{min}	2.262	7.052	14.567
{\rm log}_{10}(\gamma_e)\,	-2.850	-2.068	-1.368

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.960	-2.768	-1.966
{\rm log}_{10}(\tau_{AGN})\,	0.997	1.420	1.841

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.533	0.700	0.856
0.03-0.10 Gyr	1.322	1.489	1.710
0.10-0.32 Gyr	-0.990	0.148	0.598
0.32-1.05 Gyr	-1.163	0.007	0.400
1.05-3.40 Gyr	-0.292	0.380	0.724
3.40-11.00 Gyr	0.433	0.818	0.938
11.00-12.23 Gyr	0.431	1.021	1.654