2025yjm

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Information

Transient

Name: AT2025yjm
Right ascension: 7h00m19.00s
Declination: 49d23m49.80s
Discovery Date: Sept. 23, 2025, 10:45 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.080

Host

Name:
Right ascension: 7h00m18.99s
Declination: 49d23m50.25s
Redshift: None
Photometric Redshift: 0.079

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	5.31
Transient MWEBV	processed	0.07
Host match	processed	5.56
Host information	processed	0.11
Host MWEBV	processed	0.04
Global aperture construction	processed	0.65
Global aperture photometry	processed	4.66
Validate global photometry	processed	14.89
Global host SED inference	processed	584.09
Local aperture photometry	processed	5.08
Validate local photometry	processed	0.02
Local host SED inference	processed	570.52

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) = 7h00m19.00s, 49d23m49.80s
semi major axis, semi minor axis (arcsec) = 1.35, 1.35
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
DES_g	41.02	0.46	19.867	0.012	AB
PanSTARRS_g	41.6	0.3	19.852	0.008	AB
PanSTARRS_r	98.08	0.46	18.921	0.005	AB
PanSTARRS_i	149.64	0.36	18.462	0.003	AB
PanSTARRS_z	196.5	1.33	18.167	0.007	AB
DES_z	250.84	1.84	17.902	0.008	AB
PanSTARRS_y	206.18	3.09	18.114	0.016	AB

Aperture details

RA, DEC (J2000) = 7h00m18.97s, 49d23m50.36s
semi major axis, semi minor axis (arcsec) = 9.44, 4.8
angle (degrees, anti-clockwise from east) = -138.59

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	12.58	2.57	21.151	0.222	AB
GALEX_NUV	13.0	2.09	21.116	0.175	AB
DES_g	167.49	1.0	18.340	0.006	AB
PanSTARRS_g	188.54	1.41	18.211	0.008	AB
PanSTARRS_r	402.24	2.14	17.389	0.006	AB
PanSTARRS_i	567.69	1.64	17.015	0.003	AB
PanSTARRS_z	755.98	6.42	16.704	0.009	AB
DES_z	725.1	3.41	16.749	0.005	AB
PanSTARRS_y	788.49	15.22	16.658	0.021	AB
2MASS_J	1203.8	156.48	15.304	0.141	Vega
2MASS_H	1765.31	249.69	14.415	0.154	Vega
2MASS_K	1112.64	259.84	14.446	0.254	Vega
WISE_W1	563.02	20.9	14.325	0.040	Vega
WISE_W2	396.81	23.92	14.065	0.065	Vega
WISE_W3	347.45	89.34	12.374	0.279	Vega
WISE_W4	372.84	511.24	10.851	1.489	Vega

Imaging data

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Spectral Energy Distribution

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Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.929	10.029	10.149
{\rm log}_{10}({\rm SFR})	-2.574	-1.438	-0.731
{\rm log}_{10}({\rm sSFR})	-12.693	-11.498	-10.755
{\rm stellar\ age}	7.533	9.774	12.016

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.169	-0.700	-0.432
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.674	-0.888	0.056

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.359	0.761	1.081
\delta	-0.453	-0.025	0.233
\tau_1/\tau_2	0.570	0.996	1.414
Q_{PAH}	0.720	2.550	5.517
U_{min}	3.250	8.855	16.172
{\rm log}_{10}(\gamma_e)\,	-3.146	-1.939	-0.578

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.357	-1.015	-0.132
{\rm log}_{10}(\tau_{AGN})\,	1.021	1.347	1.824

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-3.661	-1.808	-1.000
0.03-0.10 Gyr	-2.895	-1.452	-0.682
0.10-0.33 Gyr	-3.546	-1.607	-0.786
0.33-1.07 Gyr	-4.500	-1.815	-0.820
1.07-3.50 Gyr	-3.871	-1.639	-0.396
3.50-11.45 Gyr	-1.694	-0.045	0.263
11.45-12.72 Gyr	-0.009	0.897	1.265

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.499	10.539	10.587
{\rm log}_{10}({\rm SFR})	-0.985	-0.487	0.003
{\rm log}_{10}({\rm sSFR})	-11.540	-11.028	-10.530
{\rm stellar\ age}	10.964	11.986	12.068

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.771	-0.550	-0.408
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.747	-0.644	0.264

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.061	0.155	0.332
\delta	-0.274	0.067	0.285
\tau_1/\tau_2	0.537	1.073	1.608
Q_{PAH}	0.663	1.759	3.624
U_{min}	3.442	9.332	17.041
{\rm log}_{10}(\gamma_e)\,	-2.878	-1.682	-0.588

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.759	-1.712	-1.221
{\rm log}_{10}(\tau_{AGN})\,	1.234	1.637	1.938

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.729	-0.728	-0.307
0.03-0.10 Gyr	-1.425	-0.473	0.112
0.10-0.33 Gyr	-4.214	-1.833	-0.654
0.33-1.07 Gyr	-6.475	-3.337	-1.223
1.07-3.50 Gyr	-5.036	-2.721	-1.146
3.50-11.45 Gyr	-2.366	-1.071	0.233
11.45-12.72 Gyr	1.542	1.677	1.732