2025umn

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Information

Transient

Name: AT2025umn
Right ascension: 15h58m23.74s
Declination: 20d02m43.24s
Discovery Date: Aug. 14, 2025, 6:31 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.037

Host

Name:
Right ascension: 15h58m25.42s
Declination: 20d02m35.70s
Redshift: 0.051921
Photometric Redshift:

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	30.03
Transient MWEBV	processed	0.05
Host match	processed	6.27
Host information	processed	0.16
Host MWEBV	processed	0.04
Global aperture construction	processed	0.61
Global aperture photometry	processed	6.26
Validate global photometry	processed	17.44
Global host SED inference	processed	426.63
Local aperture photometry	processed	6.95
Validate local photometry	processed	0.03
Local host SED inference	failed	0.01

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) = 15h58m23.74s, 20d02m43.24s
semi major axis, semi minor axis (arcsec) = 1.98, 1.98
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	2.79	1.65	22.786	0.643	AB
SDSS_g	0.97	0.62	23.931	0.693	AB
DES_g	0.12	0.18	26.168	1.547	AB
PanSTARRS_g	-0.48	0.48			AB
SDSS_r	-1.07	0.89			AB
PanSTARRS_r	0.26	0.44	25.346	1.814	AB
DES_r	0.47	0.32	24.720	0.731	AB
SDSS_i	2.61	1.6	22.860	0.665	AB
PanSTARRS_i	-1.02	0.42			AB
PanSTARRS_z	-1.04	1.35			AB
SDSS_z	6.62	5.8	21.847	0.950	AB
DES_z	-0.13	0.85			AB
PanSTARRS_y	-1.7	2.78			AB

Aperture details

RA, DEC (J2000) = 15h58m25.42s, 20d02m35.89s
semi major axis, semi minor axis (arcsec) = 10.62, 6.5
angle (degrees, anti-clockwise from east) = -110.87

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_NUV	45.49	2.73	19.755	0.065	AB
SDSS_g	282.38	4.87	17.773	0.019	AB
DES_g	270.94	1.15	17.818	0.005	AB
PanSTARRS_g	258.07	2.16	17.871	0.009	AB
SDSS_r	383.67	6.18	17.440	0.017	AB
PanSTARRS_r	413.0	1.91	17.360	0.005	AB
DES_r	440.26	2.5	17.291	0.006	AB
SDSS_i	499.73	8.57	17.153	0.019	AB
PanSTARRS_z	576.43	5.88	16.998	0.011	AB
SDSS_z	654.1	24.92	16.861	0.041	AB
2MASS_J	928.31	191.77	15.586	0.224	Vega
2MASS_H	386.41	295.81	16.065	0.831	Vega
2MASS_K	336.04	365.76	15.746	1.182	Vega
WISE_W1	311.82	14.37	14.966	0.050	Vega
WISE_W2	190.25	19.22	14.863	0.110	Vega
WISE_W3	587.81	88.06	11.803	0.163	Vega
WISE_W4	47.41	464.39	13.090	10.634	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

Data not available

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.643	9.715	9.800
{\rm log}_{10}({\rm SFR})	-0.572	-0.313	-0.008
{\rm log}_{10}({\rm sSFR})	-10.309	-10.033	-9.702
{\rm stellar\ age}	6.675	7.505	8.920

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.951	-0.713	-0.535
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.703	0.126	0.378

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.070	0.129	0.245
\delta	-0.845	-0.495	-0.013
\tau_1/\tau_2	0.735	1.100	1.464
Q_{PAH}	0.417	1.346	3.112
U_{min}	2.728	7.590	14.212
{\rm log}_{10}(\gamma_e)\,	-2.713	-1.743	-0.974

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.290	-3.168	-2.156
{\rm log}_{10}(\tau_{AGN})\,	1.013	1.495	1.886

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.670	-0.523	-0.391
0.03-0.10 Gyr	-0.595	-0.239	0.113
0.10-0.33 Gyr	-0.709	-0.348	-0.096
0.33-1.08 Gyr	-1.008	-0.560	-0.308
1.08-3.57 Gyr	-0.910	-0.479	-0.226
3.57-11.76 Gyr	-0.351	-0.158	-0.033
11.76-13.06 Gyr	-0.501	-0.016	0.488