2025ahsd

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Information

Transient

Name: AT2025ahsd
Right ascension: 12h27m30.58s
Declination: 16d03m38.88s
Discovery Date: Dec. 8, 2025, 12:28 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.024

Host

Name:
Right ascension: 12h27m30.73s
Declination: 16d03m40.83s
Redshift: None
Photometric Redshift: 0.088

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	18.56
Transient MWEBV	processed	0.07
Host match	processed	6.29
Host information	processed	0.12
Host MWEBV	processed	0.04
Global aperture construction	processed	0.63
Global aperture photometry	processed	1.32
Validate global photometry	processed	1.99
Global host SED inference	processed	460.42
Local aperture photometry	processed	6.33
Validate local photometry	processed	0.03
Local host SED inference	processed	596.14

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) = 12h27m30.58s, 16d03m38.88s
semi major axis, semi minor axis (arcsec) = 1.22, 1.22
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	3.39	0.11	22.575	0.035	AB
PanSTARRS_r	3.94	0.34	22.411	0.095	AB
DES_r	4.4	0.2	22.291	0.049	AB
PanSTARRS_i	4.27	0.54	22.323	0.137	AB
PanSTARRS_z	4.34	0.69	22.307	0.172	AB
PanSTARRS_y	3.87	1.42	22.432	0.399	AB

Aperture details

RA, DEC (J2000) = 12h27m30.71s, 16d03m40.81s
semi major axis, semi minor axis (arcsec) = 4.68, 2.92
angle (degrees, anti-clockwise from east) = -114.41

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	10.77	0.72	21.319	0.072	AB
GALEX_NUV	12.71	0.42	21.140	0.036	AB
SDSS_u	18.75	3.43	20.717	0.198	AB
SDSS_g	44.62	2.08	19.776	0.051	AB
DES_g	41.69	0.48	19.850	0.013	AB
PanSTARRS_g	34.29	1.01	20.062	0.032	AB
SDSS_r	63.91	2.76	19.386	0.047	AB
PanSTARRS_r	42.75	1.04	19.823	0.026	AB
DES_r	59.84	0.79	19.457	0.014	AB
SDSS_i	78.13	3.54	19.168	0.049	AB
PanSTARRS_i	58.78	1.64	19.477	0.030	AB
PanSTARRS_z	56.4	2.1	19.522	0.040	AB
SDSS_z	81.99	9.18	19.116	0.122	AB
PanSTARRS_y	54.43	4.12	19.560	0.082	AB
2MASS_J	207.74	85.27	17.211	0.446	Vega
2MASS_H	328.05	137.96	16.243	0.457	Vega
2MASS_K	104.57	127.56	17.014	1.324	Vega
WISE_W1	21.57	6.13	17.867	0.308	Vega
WISE_W2	1.72	8.35	19.972	5.268	Vega
WISE_W3	12.67	47.64	15.969	4.082	Vega
WISE_W4	579.26	279.48	10.373	0.524	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})\,	7.598	7.908	8.125
{\rm log}_{10}({\rm SFR})	-1.716	-1.144	-0.435
{\rm log}_{10}({\rm sSFR})	-9.794	-9.038	-7.966
{\rm stellar\ age}	0.141	1.689	5.349

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.350	-0.384	0.039
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.252	-0.660	-0.084

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.424	0.774	1.393
\delta	-0.136	0.126	0.301
\tau_1/\tau_2	0.639	1.085	1.546
Q_{PAH}	1.402	3.202	5.470
U_{min}	3.324	9.216	16.876
{\rm log}_{10}(\gamma_e)\,	-2.716	-1.731	-0.701

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-0.493	0.137	0.366
{\rm log}_{10}(\tau_{AGN})\,	1.189	1.563	1.892

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.238	-1.466	-0.987
0.03-0.10 Gyr	-1.914	-1.131	-0.291
0.10-0.33 Gyr	-2.320	-1.292	-0.660
0.33-1.06 Gyr	-4.351	-1.825	-1.280
1.06-3.48 Gyr	-6.442	-2.767	-1.759
3.48-11.34 Gyr	-7.401	-3.160	-1.969
11.34-12.60 Gyr	-7.419	-2.962	-1.858

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.853	9.024	9.172
{\rm log}_{10}({\rm SFR})	-0.710	-0.401	-0.073
{\rm log}_{10}({\rm sSFR})	-9.790	-9.421	-9.020
{\rm stellar\ age}	3.547	5.535	6.984

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.698	-1.239	-0.540
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	0.009	0.295	0.433

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.072	0.216	0.442
\delta	-0.438	0.029	0.264
\tau_1/\tau_2	0.780	1.124	1.493
Q_{PAH}	0.766	2.267	4.297
U_{min}	2.717	7.944	14.965
{\rm log}_{10}(\gamma_e)\,	-2.739	-1.494	-0.513

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.351	-1.279	-0.541
{\rm log}_{10}(\tau_{AGN})\,	1.257	1.613	1.935

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.943	-0.710	-0.492
0.03-0.10 Gyr	-0.680	-0.313	0.044
0.10-0.33 Gyr	-0.677	-0.344	-0.041
0.33-1.06 Gyr	-1.172	-0.741	-0.466
1.06-3.48 Gyr	-1.342	-0.918	-0.658
3.48-11.34 Gyr	-1.483	-0.981	-0.732
11.34-12.60 Gyr	-1.707	-0.956	-0.422