2026hdl results

2026hdl results

Information

Transient

Name:	`AT2026hdl`
Right ascension:	`3h17m02.23s`
Declination:	`3d38m58.77s`
Discovery Date:	`March 24, 2026, 2:52 a.m.`
Classification:	`None`
Redshift:	`None`
MW E(B-V):	`0.107`

Host

Name:
Right ascension:	`3h17m02.26s`
Declination:	`3d38m57.57s`
Redshift:	`None`
Photometric Redshift:	`0.034`

Cutout Download Report

Downloaded	Unavailable
2MASS_H 2MASS_J 2MASS_K WISE_W1 WISE_W2 WISE_W3 WISE_W4 PanSTARRS_g PanSTARRS_r PanSTARRS_i PanSTARRS_z PanSTARRS_y SDSS_i SDSS_r SDSS_u SDSS_z SDSS_g	GALEX_NUV GALEX_FUV DES_g DES_r DES_i DES_z DES_Y

Processing Status: completed

Task Name	Status	Time (s)
Cutout download	processed	15.68
Transient MWEBV	processed	0.11
Host match	processed	5.27
Host information	processed	0.06
Host MWEBV	processed	0.05
Global aperture construction	processed	0.63
Global aperture photometry	processed	4.84
Validate global photometry	processed	15.08
Global host SED inference	processed	398.1
Local aperture photometry	processed	4.67
Validate local photometry	processed	0.02
Local host SED inference	processed	463.71

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	3h17m02.23s, 3d38m58.77s
semi major axis, semi minor axis (arcsec):	2.99, 2.99
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	72.85	2.92	19.244	0.043	AB
SDSS_g	419.95	5.38	17.342	0.014	AB
PanSTARRS_g	479.77	0.97	17.197	0.002	AB
SDSS_r	1191.51	9.05	16.210	0.008	AB
PanSTARRS_r	1272.98	1.14	16.138	0.001	AB
SDSS_i	2084.07	12.07	15.603	0.006	AB
PanSTARRS_i	2160.79	1.22	15.563	0.001	AB
PanSTARRS_z	3089.37	2.6	15.175	0.001	AB
SDSS_z	3308.54	16.56	15.101	0.005	AB
PanSTARRS_y	4188.0	5.63	14.845	0.001	AB
2MASS_J	5610.13	96.29	13.633	0.019	Vega
2MASS_H	8066.25	126.39	12.766	0.017	Vega
2MASS_K	7969.79	162.77	12.309	0.022	Vega

Aperture details

RA, DEC (J2000):	3h17m02.20s, 3d38m57.49s
semi major axis, semi minor axis (arcsec):	24.43, 12.89
angle (degrees, anti-clockwise from east):	-10.39

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	343.04	12.9	17.562	0.041	AB
SDSS_g	2020.09	12.63	15.637	0.007	AB
PanSTARRS_g	2238.3	5.12	15.525	0.002	AB
SDSS_r	4750.97	19.43	14.708	0.004	AB
PanSTARRS_r	4990.18	5.4	14.655	0.001	AB
SDSS_i	7636.14	26.39	14.193	0.004	AB
PanSTARRS_i	7698.21	5.7	14.184	0.001	AB
PanSTARRS_z	10194.25	13.73	13.879	0.001	AB
SDSS_z	11012.95	50.51	13.795	0.005	AB
PanSTARRS_y	13542.58	32.32	13.571	0.003	AB
2MASS_J	18552.87	558.22	12.334	0.033	Vega
2MASS_H	24312.11	737.36	11.568	0.033	Vega
2MASS_K	23864.19	960.32	11.118	0.044	Vega
WISE_W1	13305.74	74.41	10.891	0.006	Vega
WISE_W2	8621.88	80.76	10.722	0.010	Vega
WISE_W3	42851.08	310.36	7.146	0.008	Vega
WISE_W4	51360.85	2318.48	5.503	0.049	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.353	10.495	10.648
{\rm log}_{10}({\rm SFR})	-1.439	-0.496	0.282
{\rm log}_{10}({\rm sSFR})	-12.064	-10.989	-10.109
{\rm stellar\ age}	6.148	7.945	10.941

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.530	-0.232	-0.025
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.927	0.086	0.345

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.815	1.179	1.571
\delta	-0.468	-0.155	0.196
\tau_1/\tau_2	0.593	0.966	1.355
Q_{PAH}	1.203	3.212	5.153
U_{min}	2.595	7.617	14.716
{\rm log}_{10}(\gamma_e)\,	-3.446	-1.817	-0.798

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.192	-1.999	-0.833
{\rm log}_{10}(\tau_{AGN})\,	1.026	1.582	1.990

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.284	-0.323	0.302
0.03-0.10 Gyr	-2.234	-0.778	0.253
0.10-0.33 Gyr	-2.138	-0.658	0.286
0.33-1.09 Gyr	-2.053	-0.406	0.419
1.09-3.62 Gyr	-1.491	0.115	0.658
3.62-11.98 Gyr	-0.001	0.526	0.786
11.98-13.31 Gyr	0.051	0.756	1.555

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.674	10.764	10.842
{\rm log}_{10}({\rm SFR})	0.077	0.714	0.994
{\rm log}_{10}({\rm sSFR})	-10.726	-10.047	-9.719
{\rm stellar\ age}	4.821	6.426	7.590

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.395	-0.132	0.052
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.588	-0.504	0.133

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.739	0.973	1.198
\delta	-0.564	-0.359	-0.217
\tau_1/\tau_2	0.494	0.839	1.196
Q_{PAH}	1.008	1.899	3.615
U_{min}	2.076	6.284	12.898
{\rm log}_{10}(\gamma_e)\,	-3.501	-2.510	-1.741

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.811	-2.632	-1.843
{\rm log}_{10}(\tau_{AGN})\,	1.085	1.561	1.954

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.227	0.692	1.015
0.03-0.10 Gyr	-0.323	0.672	1.040
0.10-0.33 Gyr	-0.155	0.778	1.158
0.33-1.09 Gyr	0.350	0.808	1.117
1.09-3.62 Gyr	0.635	0.907	1.137
3.62-11.98 Gyr	0.485	0.799	0.968
11.98-13.31 Gyr	0.164	0.794	1.227