2025ymj

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Information

Transient

Name: AT2025ymj
Right ascension: 0h20m15.81s
Declination: 25d17m24.33s
Discovery Date: Sept. 24, 2025, 8:55 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.026

Host

Name:
Right ascension: 0h20m15.41s
Declination: 25d17m22.07s
Redshift: None
Photometric Redshift: 0.099

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	18.53
Transient MWEBV	processed	0.04
Host match	processed	4.7
Host information	processed	0.11
Host MWEBV	processed	0.04
Global aperture construction	processed	0.63
Global aperture photometry	processed	7.21
Validate global photometry	processed	18.23
Global host SED inference	processed	591.39
Local aperture photometry	failed	0.03
Validate local photometry	not processed	None
Local host SED inference	not processed	None

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) = 0h20m15.81s, 25d17m24.33s
semi major axis, semi minor axis (arcsec) = 1.09, 1.09
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys

Data not available

Aperture details

RA, DEC (J2000) = 0h20m15.37s, 25d17m22.37s
semi major axis, semi minor axis (arcsec) = 12.15, 8.68
angle (degrees, anti-clockwise from east) = -127.89

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	12.33	2.1	21.172	0.185	AB
GALEX_NUV	10.3	1.53	21.368	0.161	AB
SDSS_u	68.17	7.96	19.316	0.127	AB
SDSS_g	592.15	6.76	16.969	0.012	AB
DES_g	640.38	2.18	16.884	0.004	AB
PanSTARRS_g	634.0	2.43	16.895	0.004	AB
SDSS_r	1298.48	10.16	16.116	0.008	AB
PanSTARRS_r	1300.61	2.41	16.115	0.002	AB
DES_r	1453.97	4.23	15.994	0.003	AB
SDSS_i	1930.7	13.46	15.686	0.008	AB
PanSTARRS_i	1942.0	4.26	15.679	0.002	AB
PanSTARRS_z	2551.66	8.4	15.383	0.004	AB
SDSS_z	2895.98	35.26	15.246	0.013	AB
DES_z	2675.37	12.73	15.332	0.005	AB
PanSTARRS_y	3118.65	20.72	15.165	0.007	AB
2MASS_J	3779.35	208.35	14.062	0.060	Vega
2MASS_H	4745.02	318.15	13.342	0.073	Vega
2MASS_K	4258.4	317.11	12.989	0.081	Vega
WISE_W1	1999.74	30.92	12.949	0.017	Vega
WISE_W2	1255.62	35.61	12.814	0.031	Vega
WISE_W3	1442.3	137.09	10.828	0.103	Vega
WISE_W4	158.54	588.4	11.780	4.029	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})\,	11.156	11.242	11.284
{\rm log}_{10}({\rm SFR})	-1.021	-0.570	-0.237
{\rm log}_{10}({\rm sSFR})	-12.269	-11.796	-11.434
{\rm stellar\ age}	8.047	11.162	11.812

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.512	-0.413	-0.326
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.163	-0.527	-0.019

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.102	0.154	0.213
\delta	-0.932	-0.791	-0.552
\tau_1/\tau_2	0.364	0.792	1.260
Q_{PAH}	0.670	3.241	5.503
U_{min}	2.085	7.253	15.549
{\rm log}_{10}(\gamma_e)\,	-2.817	-1.205	-0.345

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.321	-3.244	-2.297
{\rm log}_{10}(\tau_{AGN})\,	1.115	1.611	1.964

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.774	-0.357	-0.079
0.03-0.10 Gyr	-3.069	-0.882	-0.248
0.10-0.33 Gyr	-3.669	-1.077	-0.249
0.33-1.06 Gyr	-3.020	-0.990	-0.194
1.06-3.45 Gyr	-2.613	-0.792	0.075
3.45-11.21 Gyr	-1.066	0.710	1.413
11.21-12.46 Gyr	1.541	2.337	2.434