2025alpe

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Information

Transient

Name: AT2025alpe
Right ascension: 11h15m41.99s
Declination: 4d31m55.53s
Discovery Date: Dec. 26, 2025, 10:30 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.045

Host

Name: SDSSJ111541.21+04315
Right ascension: 11h15m41.28s
Declination: 4d31m55.74s
Redshift: None
Photometric Redshift: 0.040

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	12.96
Transient MWEBV	processed	0.04
Host match	processed	3.96
Host information	processed	0.09
Host MWEBV	processed	0.07
Global aperture construction	processed	0.65
Global aperture photometry	processed	5.64
Validate global photometry	processed	16.56
Global host SED inference	processed	454.85
Local aperture photometry	processed	5.6
Validate local photometry	processed	0.03
Local host SED inference	processed	562.93

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) = 11h15m41.99s, 4d31m55.53s
semi major axis, semi minor axis (arcsec) = 2.5, 2.5
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	0.0	1.74	34.503	32924.163	AB
SDSS_g	2.92	0.93	22.736	0.345	AB
PanSTARRS_g	2.01	0.52	23.144	0.280	AB
SDSS_r	2.58	1.39	22.870	0.582	AB
PanSTARRS_r	4.14	0.69	22.357	0.182	AB
SDSS_i	4.6	2.06	22.243	0.487	AB
PanSTARRS_i	2.19	0.62	23.051	0.307	AB
PanSTARRS_z	7.33	1.52	21.737	0.224	AB
SDSS_z	18.19	8.2	20.751	0.490	AB
DES_z	8.61	1.15	21.562	0.146	AB
PanSTARRS_y	-3.68	3.73			AB

Aperture details

RA, DEC (J2000) = 11h15m41.20s, 4d31m55.83s
semi major axis, semi minor axis (arcsec) = 8.47, 6.65
angle (degrees, anti-clockwise from east) = -132.54

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	47.3	1.84	19.713	0.042	AB
GALEX_NUV	62.04	1.2	19.418	0.021	AB
SDSS_u	79.34	5.6	19.151	0.077	AB
SDSS_g	243.97	4.62	17.932	0.021	AB
PanSTARRS_g	243.28	1.59	17.935	0.007	AB
SDSS_r	337.5	6.03	17.579	0.019	AB
PanSTARRS_r	350.03	2.12	17.540	0.007	AB
SDSS_i	424.26	7.83	17.331	0.020	AB
PanSTARRS_i	386.92	1.86	17.431	0.005	AB
PanSTARRS_z	449.27	4.55	17.269	0.011	AB
SDSS_z	538.39	25.0	17.072	0.050	AB
DES_z	467.7	5.39	17.225	0.013	AB
PanSTARRS_y	476.45	11.21	17.205	0.026	AB
2MASS_J	247.56	225.16	17.021	0.987	Vega
2MASS_H	845.25	343.47	15.215	0.441	Vega
2MASS_K	1224.72	400.34	14.342	0.355	Vega
WISE_W1	224.02	17.21	15.325	0.083	Vega
WISE_W2	140.38	20.29	15.193	0.157	Vega
WISE_W3	313.3	110.3	12.486	0.382	Vega
WISE_W4	905.13	528.72	9.888	0.634	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})\,	6.544	7.050	7.709
{\rm log}_{10}({\rm SFR})	-1.864	-1.505	-1.231
{\rm log}_{10}({\rm sSFR})	-9.486	-8.461	-7.961
{\rm stellar\ age}	0.018	4.763	8.142

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.242	0.025	0.146
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.544	-1.189	-0.839

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	1.118	1.495	2.083
\delta	-0.113	0.124	0.300
\tau_1/\tau_2	0.553	0.955	1.420
Q_{PAH}	0.687	1.980	4.324
U_{min}	3.129	8.588	16.493
{\rm log}_{10}(\gamma_e)\,	-2.991	-1.885	-0.656

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.817	-1.469	-0.178
{\rm log}_{10}(\tau_{AGN})\,	1.089	1.498	1.927

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.478	-1.024	-0.739
0.03-0.10 Gyr	-4.891	-3.315	-2.014
0.10-0.33 Gyr	-7.612	-4.498	-2.592
0.33-1.09 Gyr	-8.771	-4.668	-2.589
1.09-3.60 Gyr	-8.586	-3.977	-2.434
3.60-11.89 Gyr	-8.236	-3.511	-2.271
11.89-13.21 Gyr	-8.105	-3.385	-1.867

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.265	9.385	9.493
{\rm log}_{10}({\rm SFR})	-0.547	-0.274	-0.061
{\rm log}_{10}({\rm sSFR})	-9.939	-9.660	-9.392
{\rm stellar\ age}	6.638	7.729	9.998

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.305	-0.947	-0.685
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.798	-0.545	0.310

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.047	0.138	0.274
\delta	-0.404	0.036	0.277
\tau_1/\tau_2	0.692	1.085	1.491
Q_{PAH}	1.013	3.001	5.148
U_{min}	2.916	8.229	15.845
{\rm log}_{10}(\gamma_e)\,	-2.545	-1.498	-0.562

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.877	-2.493	-1.643
{\rm log}_{10}(\tau_{AGN})\,	1.128	1.626	1.928

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.962	-0.968	-0.725
0.03-0.10 Gyr	-0.457	-0.138	0.092
0.10-0.33 Gyr	-1.216	-0.576	-0.236
0.33-1.09 Gyr	-1.623	-0.932	-0.612
1.09-3.60 Gyr	-1.613	-0.941	-0.617
3.60-11.89 Gyr	-0.905	-0.561	-0.382
11.89-13.21 Gyr	-0.811	-0.275	0.368