2025yhi results

2025yhi results

Information

Transient

Name:	`AT2025yhi`
Right ascension:	`9h30m30.58s`
Declination:	`16d21m59.00s`
Discovery Date:	`Sept. 22, 2025, 10:07 p.m.`
Classification:	`None`
Redshift:	`None`
MW E(B-V):	`0.027`

Host

Name:	`26990`
Right ascension:	`9h30m28.92s`
Declination:	`16d21m43.71s`
Redshift:	`0.028810`
Photometric Redshift:	`None`

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_z	DES_i DES_Y

Processing Status: completed

Task Name	Status	Time (s)
Cutout download	processed	17.86
Transient MWEBV	processed	0.1
Host match	processed	4.05
Host information	processed	0.12
Host MWEBV	processed	0.04
Global aperture construction	processed	0.65
Global aperture photometry	processed	5.41
Validate global photometry	processed	16.47
Global host SED inference	processed	418.45
Local aperture photometry	processed	5.83
Validate local photometry	processed	0.03
Local host SED inference	processed	523.48

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	9h30m30.58s, 16d21m59.00s
semi major axis, semi minor axis (arcsec):	3.46, 3.46
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	6.54	3.07	21.861	0.509	AB
SDSS_g	-0.2	1.15			AB
DES_g	2.29	0.25	23.001	0.121	AB
PanSTARRS_g	2.39	0.95	22.956	0.431	AB
SDSS_r	1.89	1.7	23.207	0.977	AB
PanSTARRS_r	9.07	1.41	21.506	0.169	AB
DES_r	1.75	0.58	23.291	0.358	AB
SDSS_i	0.08	2.65	26.666	36.782	AB
PanSTARRS_i	4.69	1.34	22.221	0.310	AB
PanSTARRS_z	-2.63	2.61			AB
SDSS_z	5.14	7.88	22.122	1.663	AB
DES_z	1.45	1.13	23.493	0.846	AB
PanSTARRS_y	-4.67	5.98			AB
2MASS_J	2.29	69.28	22.107	32.897	Vega
2MASS_H	-12.17	98.94			Vega
2MASS_K	-104.68	114.71			Vega

Aperture details

RA, DEC (J2000):	9h30m28.89s, 16d21m43.57s
semi major axis, semi minor axis (arcsec):	27.17, 13.87
angle (degrees, anti-clockwise from east):	0.08

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	107.52	7.89	18.821	0.080	AB
SDSS_u	910.78	18.36	16.501	0.022	AB
PanSTARRS_g	3031.01	5.39	15.196	0.002	AB
SDSS_r	5492.28	21.29	14.551	0.004	AB
PanSTARRS_r	5076.63	8.37	14.636	0.002	AB
SDSS_i	7818.93	27.21	14.167	0.004	AB
PanSTARRS_z	9816.55	14.52	13.920	0.002	AB
SDSS_z	10687.06	51.27	13.828	0.005	AB
DES_z	10543.38	21.33	13.843	0.002	AB
PanSTARRS_y	12536.82	33.49	13.655	0.003	AB
2MASS_J	15118.25	394.61	12.556	0.028	Vega
2MASS_H	20917.78	561.71	11.731	0.029	Vega
2MASS_K	19119.24	651.67	11.359	0.037	Vega
WISE_W1	11791.32	74.55	11.022	0.007	Vega
WISE_W2	8068.92	86.12	10.794	0.012	Vega
WISE_W3	53722.75	371.63	6.901	0.008	Vega
WISE_W4	72847.04	3217.41	5.124	0.048	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	6.264	6.950	7.347
{\rm log}_{10}({\rm SFR})	-2.569	-2.183	-1.832
{\rm log}_{10}({\rm sSFR})	-9.763	-9.118	-8.091
{\rm stellar\ age}	1.111	6.225	8.139

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.954	-0.247	0.045
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.969	-0.716	-0.450

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.706	1.131	1.707
\delta	-0.183	0.135	0.304
\tau_1/\tau_2	0.353	0.719	1.172
Q_{PAH}	1.091	2.986	5.494
U_{min}	3.352	8.915	16.642
{\rm log}_{10}(\gamma_e)\,	-2.714	-1.495	-0.457

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.210	-0.318	0.200
{\rm log}_{10}(\tau_{AGN})\,	1.178	1.621	1.979

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.243	-1.810	-1.422
0.03-0.10 Gyr	-4.841	-3.048	-2.197
0.10-0.33 Gyr	-5.348	-3.288	-2.532
0.33-1.10 Gyr	-5.641	-3.354	-2.733
1.10-3.63 Gyr	-5.783	-3.250	-2.671
3.63-12.03 Gyr	-5.422	-3.155	-2.599
12.03-13.37 Gyr	-5.558	-3.134	-2.311

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.348	10.529	10.653
{\rm log}_{10}({\rm SFR})	0.117	0.837	1.472
{\rm log}_{10}({\rm sSFR})	-10.531	-9.679	-8.889
{\rm stellar\ age}	4.720	6.612	7.955

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.548	-0.271	-0.009
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.121	-0.268	0.202

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.730	0.919	1.255
\delta	-0.208	-0.113	0.157
\tau_1/\tau_2	0.548	0.907	1.267
Q_{PAH}	1.306	2.764	4.620
U_{min}	2.159	6.593	13.576
{\rm log}_{10}(\gamma_e)\,	-3.476	-2.415	-1.671

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.865	-1.435	-1.056
{\rm log}_{10}(\tau_{AGN})\,	1.305	1.734	2.020

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.419	-0.147	0.332
0.03-0.10 Gyr	0.166	0.976	1.630
0.10-0.33 Gyr	-0.157	0.689	1.025
0.33-1.10 Gyr	-0.365	0.503	0.770
1.10-3.63 Gyr	0.031	0.573	0.835
3.63-12.03 Gyr	-0.063	0.549	0.755
12.03-13.37 Gyr	-0.265	0.569	1.116