2025ljv

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Information

Transient

Name: AT2025ljv
Right ascension: 8h44m40.62s
Declination: 30d41m53.87s
Discovery Date: May 23, 2025, 6:03 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.046

Host

Name: 2025ljv
Right ascension: 8h44m40.69s
Declination: 30d41m56.01s
Redshift: 0.051853
Photometric Redshift: 0.083

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	14.73
Transient MWEBV	processed	0.08
Host match	processed	1.82
Host information	processed	0.09
Host MWEBV	processed	0.04
Global aperture construction	processed	0.69
Global aperture photometry	processed	5.7
Validate global photometry	processed	15.92
Global host SED inference	processed	471.96
Local aperture photometry	processed	5.45
Validate local photometry	processed	0.02
Local host SED inference	processed	470.38

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) = 8h44m40.62s, 30d41m53.87s
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	19.11	1.74	20.697	0.099	AB
SDSS_g	50.19	1.91	19.649	0.041	AB
PanSTARRS_g	49.47	0.55	19.664	0.012	AB
SDSS_r	82.06	2.5	19.115	0.033	AB
PanSTARRS_r	80.66	0.59	19.133	0.008	AB
SDSS_i	113.91	3.06	18.759	0.029	AB
PanSTARRS_i	104.77	0.8	18.849	0.008	AB
PanSTARRS_z	123.42	1.23	18.671	0.011	AB
SDSS_z	143.41	7.45	18.509	0.056	AB
PanSTARRS_y	150.07	3.35	18.459	0.024	AB

Aperture details

RA, DEC (J2000) = 8h44m40.68s, 30d41m55.90s
semi major axis, semi minor axis (arcsec) = 13.72, 3.25
angle (degrees, anti-clockwise from east) = -141.06

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	13.09	0.99	21.108	0.082	AB
GALEX_NUV	21.99	0.89	20.544	0.044	AB
SDSS_u	93.3	5.25	18.975	0.061	AB
SDSS_g	206.19	4.14	18.114	0.022	AB
PanSTARRS_g	206.15	1.8	18.115	0.009	AB
SDSS_r	310.48	5.46	17.670	0.019	AB
PanSTARRS_r	327.07	1.9	17.613	0.006	AB
SDSS_i	427.05	7.0	17.324	0.018	AB
PanSTARRS_i	420.88	2.6	17.340	0.007	AB
PanSTARRS_z	487.55	4.05	17.180	0.009	AB
SDSS_z	549.01	23.81	17.051	0.047	AB
PanSTARRS_y	563.84	11.09	17.022	0.021	AB
2MASS_J	844.92	163.32	15.688	0.210	Vega
2MASS_H	968.57	268.35	15.067	0.301	Vega
2MASS_K	1185.06	278.76	14.378	0.255	Vega
WISE_W1	351.87	17.33	14.835	0.053	Vega
WISE_W2	242.77	26.07	14.598	0.117	Vega
WISE_W3	468.68	100.31	12.049	0.232	Vega
WISE_W4	1347.12	645.68	9.456	0.520	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})\,	8.797	9.064	9.193
{\rm log}_{10}({\rm SFR})	-1.541	-0.714	0.058
{\rm log}_{10}({\rm sSFR})	-10.644	-9.798	-8.812
{\rm stellar\ age}	1.634	5.802	7.569

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.449	-0.670	-0.198
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.590	-0.373	0.275

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.236	0.771	1.295
\delta	-0.551	-0.129	0.194
\tau_1/\tau_2	0.655	1.035	1.439
Q_{PAH}	0.812	2.507	5.181
U_{min}	3.336	8.883	16.733
{\rm log}_{10}(\gamma_e)\,	-3.105	-1.937	-0.546

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.580	-1.376	-0.393
{\rm log}_{10}(\tau_{AGN})\,	0.997	1.465	1.983

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.500	-1.344	-0.707
0.03-0.10 Gyr	-1.600	-0.635	0.203
0.10-0.33 Gyr	-1.438	-0.617	0.064
0.33-1.08 Gyr	-2.623	-0.968	-0.537
1.08-3.57 Gyr	-2.735	-0.982	-0.643
3.57-11.76 Gyr	-2.971	-1.018	-0.701
11.76-13.06 Gyr	-2.911	-1.059	-0.414

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.438	9.572	9.719
{\rm log}_{10}({\rm SFR})	-0.202	0.199	0.564
{\rm log}_{10}({\rm sSFR})	-9.859	-9.389	-8.933
{\rm stellar\ age}	5.394	6.888	8.817

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.901	-0.448	-0.259
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.956	0.243	0.431

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.205	0.330	0.556
\delta	-0.830	-0.548	-0.251
\tau_1/\tau_2	0.600	0.930	1.304
Q_{PAH}	0.353	1.044	2.361
U_{min}	3.026	7.935	14.875
{\rm log}_{10}(\gamma_e)\,	-3.314	-2.417	-1.609

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.586	-2.198	-1.666
{\rm log}_{10}(\tau_{AGN})\,	0.951	1.302	1.773

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.469	-0.938	-0.468
0.03-0.10 Gyr	-0.072	0.345	0.722
0.10-0.33 Gyr	-1.723	-0.328	0.066
0.33-1.08 Gyr	-2.621	-0.693	-0.322
1.08-3.57 Gyr	-1.602	-0.515	-0.200
3.57-11.76 Gyr	-0.999	-0.393	-0.187
11.76-13.06 Gyr	-1.069	-0.280	0.401