2025hyd results

2025hyd results

Information

Transient

Name:	`AT2025hyd`
Right ascension:	`20h56m34.82s`
Declination:	`19d38m52.52s`
Discovery Date:	`April 20, 2025, 10:56 a.m.`
Classification:	`None`
Redshift:	`None`
MW E(B-V):	`0.093`

Host

Name:	`2025hyd`
Right ascension:	`20h56m34.91s`
Declination:	`19d38m53.75s`
Redshift:	`0.105706`
Photometric Redshift:	`0.086`

Cutout Download Report

Downloaded	Unavailable
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

Processing Status: completed

Task Name	Status	Time (s)
Cutout download	processed	4.6
Transient MWEBV	processed	0.11
Host match	processed	3.75
Host information	processed	0.08
Host MWEBV	processed	0.11
Global aperture construction	processed	0.72
Global aperture photometry	processed	4.51
Validate global photometry	processed	13.54
Global host SED inference	processed	417.05
Local aperture photometry	processed	4.38
Validate local photometry	processed	0.02
Local host SED inference	processed	768.58

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	20h56m34.82s, 19d38m52.52s
semi major axis, semi minor axis (arcsec):	1.03, 1.03
angle (degrees, anti-clockwise from east):	0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
PanSTARRS_y	97.33	2.07	18.929	0.023	AB

Aperture details

RA, DEC (J2000):	20h56m34.90s, 19d38m53.87s
semi major axis, semi minor axis (arcsec):	12.54, 6.73
angle (degrees, anti-clockwise from east):	-118.17

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	22.3	4.42	20.529	0.215	AB
GALEX_NUV	27.72	3.8	20.293	0.149	AB
PanSTARRS_g	406.68	2.22	17.377	0.006	AB
PanSTARRS_r	750.87	2.61	16.711	0.004	AB
PanSTARRS_i	1109.82	3.72	16.287	0.004	AB
PanSTARRS_z	1388.06	7.78	16.044	0.006	AB
2MASS_J	1829.07	235.52	14.850	0.140	Vega
2MASS_H	3000.09	391.16	13.840	0.142	Vega
2MASS_K	2744.83	400.11	13.466	0.158	Vega
WISE_W1	1107.95	36.62	13.590	0.036	Vega
WISE_W2	747.16	44.76	13.377	0.065	Vega
WISE_W3	2350.51	106.89	10.298	0.049	Vega
WISE_W4	2108.49	604.4	8.970	0.311	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.118	9.544	9.809
{\rm log}_{10}({\rm SFR})	-0.558	-0.022	0.536
{\rm log}_{10}({\rm sSFR})	-10.269	-9.561	-8.647
{\rm stellar\ age}	2.349	6.320	9.121

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.306	-0.439	0.088
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.182	-0.544	0.136

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.488	0.757	1.071
\delta	-0.729	-0.345	-0.020
\tau_1/\tau_2	0.460	0.897	1.358
Q_{PAH}	0.442	1.609	5.105
U_{min}	2.928	7.874	14.623
{\rm log}_{10}(\gamma_e)\,	-3.480	-2.547	-0.877

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.138	-1.026	-0.221
{\rm log}_{10}(\tau_{AGN})\,	0.943	1.415	1.969

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.264	0.176	0.637
0.03-0.10 Gyr	-2.032	-0.532	0.407
0.10-0.32 Gyr	-3.129	-1.016	-0.136
0.32-1.06 Gyr	-3.831	-0.912	-0.024
1.06-3.43 Gyr	-3.161	-0.715	-0.187
3.43-11.15 Gyr	-2.228	-0.540	-0.101
11.15-12.38 Gyr	-1.981	-0.390	0.570

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.840	10.889	10.964
{\rm log}_{10}({\rm SFR})	0.200	0.534	0.837
{\rm log}_{10}({\rm sSFR})	-10.718	-10.360	-10.061
{\rm stellar\ age}	7.007	7.684	10.040

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.678	-0.483	-0.323
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.382	-0.075	0.291

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.114	0.176	0.277
\delta	-0.788	-0.463	-0.115
\tau_1/\tau_2	0.653	1.072	1.466
Q_{PAH}	0.919	2.482	4.160
U_{min}	2.369	7.343	14.540
{\rm log}_{10}(\gamma_e)\,	-2.205	-1.203	-0.469

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.769	-2.467	-1.570
{\rm log}_{10}(\tau_{AGN})\,	1.210	1.684	1.986

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.164	0.227	0.405
0.03-0.10 Gyr	0.171	0.620	0.975
0.10-0.32 Gyr	-0.191	0.431	0.755
0.32-1.06 Gyr	-0.455	0.254	0.571
1.06-3.43 Gyr	-0.475	0.396	0.783
3.43-11.15 Gyr	0.689	1.059	1.168
11.15-12.38 Gyr	0.755	1.292	1.942