2025acnp

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Information

Transient

Name: AT2025acnp
Right ascension: 0h40m03.23s
Declination: 23d48m49.50s
Discovery Date: Oct. 30, 2025, 4:44 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.026

Host

Name: 1694171
Right ascension: 0h40m03.21s
Declination: 23d48m41.97s
Redshift: 0.083889
Photometric Redshift:

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	18.5
Transient MWEBV	processed	0.04
Host match	processed	4.48
Host information	processed	0.19
Host MWEBV	processed	0.06
Global aperture construction	processed	0.63
Global aperture photometry	processed	7.1
Validate global photometry	processed	18.25
Global host SED inference	processed	560.03
Local aperture photometry	processed	6.94
Validate local photometry	processed	0.03
Local host SED inference	processed	414.08

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) = 0h40m03.23s, 23d48m49.50s
semi major axis, semi minor axis (arcsec) = 1.27, 1.27
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	8.53	0.17	21.572	0.021	AB
PanSTARRS_r	21.46	0.34	20.571	0.017	AB
DES_r	21.03	0.45	20.593	0.023	AB
SDSS_i	31.23	1.81	20.163	0.063	AB
PanSTARRS_i	32.86	0.43	20.108	0.014	AB
PanSTARRS_z	41.34	0.86	19.859	0.022	AB
DES_z	41.99	1.44	19.842	0.037	AB
PanSTARRS_y	55.86	2.11	19.532	0.041	AB

Aperture details

RA, DEC (J2000) = 0h40m03.19s, 23d48m42.47s
semi major axis, semi minor axis (arcsec) = 18.32, 11.64
angle (degrees, anti-clockwise from east) = -114.99

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	22.59	2.85	20.515	0.137	AB
GALEX_NUV	23.68	2.67	20.464	0.123	AB
SDSS_u	472.41	13.73	17.214	0.032	AB
SDSS_g	1705.36	12.0	15.820	0.008	AB
DES_g	1912.6	2.32	15.696	0.001	AB
PanSTARRS_g	1911.4	3.49	15.697	0.002	AB
SDSS_r	4229.98	18.11	14.834	0.005	AB
PanSTARRS_r	4249.98	3.91	14.829	0.001	AB
DES_r	4682.28	6.47	14.724	0.002	AB
SDSS_i	6452.1	24.24	14.376	0.004	AB
PanSTARRS_z	8448.71	9.89	14.083	0.001	AB
SDSS_z	8459.48	46.46	14.082	0.006	AB
DES_z	9068.06	21.02	14.006	0.003	AB
PanSTARRS_y	10414.66	24.1	13.856	0.003	AB
2MASS_K	16022.79	699.97	11.550	0.047	Vega
WISE_W2	4043.94	53.04	11.544	0.014	Vega
WISE_W4	338.45	779.02	10.956	2.499	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

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.285	9.399	9.533
{\rm log}_{10}({\rm SFR})	-1.776	-1.214	-0.731
{\rm log}_{10}({\rm sSFR})	-11.137	-10.584	-10.124
{\rm stellar\ age}	6.775	7.870	11.391

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.134	-0.573	-0.157
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.277	-0.758	-0.231

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.633	1.069	1.481
\delta	-0.250	0.004	0.235
\tau_1/\tau_2	0.591	0.947	1.288
Q_{PAH}	0.837	2.760	5.506
U_{min}	3.212	8.300	15.299
{\rm log}_{10}(\gamma_e)\,	-2.991	-1.949	-0.722

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.221	-0.641	-0.059
{\rm log}_{10}(\tau_{AGN})\,	1.103	1.491	1.894

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.757	-1.072	-0.556
0.03-0.10 Gyr	-2.333	-1.412	-0.828
0.10-0.33 Gyr	-2.998	-1.621	-0.975
0.33-1.07 Gyr	-3.561	-1.636	-0.942
1.07-3.49 Gyr	-3.186	-1.226	-0.591
3.49-11.39 Gyr	-1.300	-0.511	-0.308
11.39-12.65 Gyr	-0.918	-0.211	0.558

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	11.608	11.683	11.722
{\rm log}_{10}({\rm SFR})	-0.932	-0.342	0.129
{\rm log}_{10}({\rm sSFR})	-12.581	-12.014	-11.538
{\rm stellar\ age}	9.103	11.887	12.014

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.798	-0.544	-0.368
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.187	0.150	0.403

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.243	0.365	0.548
\delta	-0.205	-0.009	0.178
\tau_1/\tau_2	0.517	0.949	1.427
Q_{PAH}	0.485	1.739	4.659
U_{min}	2.958	9.213	17.548
{\rm log}_{10}(\gamma_e)\,	-2.737	-1.626	-0.896

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.671	-3.960	-2.995
{\rm log}_{10}(\tau_{AGN})\,	1.173	1.712	2.037

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.945	-0.572	-0.012
0.03-0.10 Gyr	-1.883	-0.407	0.179
0.10-0.33 Gyr	-3.128	-0.871	-0.009
0.33-1.07 Gyr	-4.287	-1.534	-0.272
1.07-3.49 Gyr	-3.275	-1.182	0.134
3.49-11.39 Gyr	-1.313	0.310	1.745
11.39-12.65 Gyr	2.323	2.823	2.869