2025npj

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Information

Transient

Name: AT2025npj
Right ascension: 13h58m08.02s
Declination: 21d11m24.61s
Discovery Date: June 13, 2025, 4:31 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.030

Host

Name:
Right ascension: 13h58m07.74s
Declination: 21d11m25.45s
Redshift: None
Photometric Redshift: 0.134

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	30.34
Transient MWEBV	processed	0.04
Host match	processed	5.99
Host information	processed	0.14
Host MWEBV	processed	0.04
Global aperture construction	processed	0.64
Global aperture photometry	processed	6.12
Validate global photometry	processed	17.32
Global host SED inference	processed	411.78
Local aperture photometry	processed	6.93
Validate local photometry	no valid phot	0.02
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) = 13h58m08.02s, 21d11m24.61s
semi major axis, semi minor axis (arcsec) = 0.84, 0.84
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) = 13h58m07.74s, 21d11m25.41s
semi major axis, semi minor axis (arcsec) = 6.6, 6.05
angle (degrees, anti-clockwise from east) = -119.65

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	51.95	5.25	19.611	0.110	AB
SDSS_g	132.37	3.47	18.596	0.028	AB
DES_g	129.84	0.65	18.617	0.005	AB
PanSTARRS_g	142.63	1.81	18.514	0.014	AB
SDSS_r	199.16	4.5	18.152	0.025	AB
PanSTARRS_r	209.0	1.4	18.100	0.007	AB
DES_r	208.95	1.48	18.100	0.008	AB
SDSS_i	265.14	6.09	17.841	0.025	AB
PanSTARRS_i	276.62	2.34	17.795	0.009	AB
PanSTARRS_z	285.05	3.74	17.763	0.014	AB
SDSS_z	261.2	15.15	17.858	0.063	AB
DES_z	288.79	3.86	17.749	0.014	AB
PanSTARRS_y	353.79	10.59	17.528	0.033	AB
2MASS_J	262.92	160.72	16.956	0.664	Vega
2MASS_H	505.3	237.57	15.774	0.510	Vega
2MASS_K	426.11	291.41	15.488	0.742	Vega
WISE_W1	240.4	14.72	15.249	0.066	Vega
WISE_W2	155.03	16.64	15.085	0.117	Vega
WISE_W3	251.37	57.05	12.725	0.246	Vega
WISE_W4	200.73	344.98	11.523	1.866	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})\,	9.988	10.084	10.168
{\rm log}_{10}({\rm SFR})	0.030	0.393	0.766
{\rm log}_{10}({\rm sSFR})	-10.057	-9.715	-9.289
{\rm stellar\ age}	2.556	4.365	5.775

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.272	-0.085	0.053
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.654	-0.086	0.205

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.105	0.199	0.335
\delta	-0.854	-0.560	-0.156
\tau_1/\tau_2	0.609	0.995	1.370
Q_{PAH}	0.530	1.455	3.154
U_{min}	2.302	6.667	13.352
{\rm log}_{10}(\gamma_e)\,	-3.083	-2.288	-1.275

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.350	-3.315	-2.271
{\rm log}_{10}(\tau_{AGN})\,	1.043	1.500	1.919

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.237	0.398	0.562
0.03-0.10 Gyr	-0.144	0.386	0.848
0.10-0.32 Gyr	0.197	0.614	0.891
0.32-1.04 Gyr	0.276	0.665	0.888
1.04-3.36 Gyr	0.008	0.308	0.535
3.36-10.84 Gyr	-0.581	-0.010	0.234
10.84-12.05 Gyr	-0.952	-0.083	0.410