2025isu results

2025isu results

Information

Transient

Name:	`AT2025isu`
Right ascension:	`8h16m44.94s`
Declination:	`-8d05m25.60s`
Discovery Date:	`April 30, 2025, 3:56 a.m.`
Classification:	`None`
Redshift:	`None`
MW E(B-V):	`0.063`

Host

Name:	`2025isu`
Right ascension:	`8h16m44.79s`
Declination:	`-8d05m26.78s`
Redshift:	`0.063770`
Photometric Redshift:	`0.042`

Cutout Download Report

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

Processing Status: completed

Task Name	Status	Time (s)
Cutout download	processed	15.3
Transient MWEBV	processed	0.05
Host match	processed	3.33
Host information	processed	0.08
Host MWEBV	processed	0.04
Global aperture construction	processed	0.62
Global aperture photometry	processed	4.74
Validate global photometry	processed	11.23
Global host SED inference	processed	405.78
Local aperture photometry	processed	4.23
Validate local photometry	processed	0.02
Local host SED inference	processed	504.81

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	8h16m44.94s, -8d05m25.60s
semi major axis, semi minor axis (arcsec):	1.63, 1.63
angle (degrees, anti-clockwise from east):	0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
PanSTARRS_g	99.88	0.5	18.901	0.005	AB
PanSTARRS_r	157.22	0.69	18.409	0.005	AB
PanSTARRS_i	202.02	0.51	18.137	0.003	AB
PanSTARRS_z	224.35	1.2	18.023	0.006	AB
PanSTARRS_y	266.83	2.89	17.834	0.012	AB

Aperture details

RA, DEC (J2000):	8h16m44.77s, -8d05m26.65s
semi major axis, semi minor axis (arcsec):	10.78, 9.76
angle (degrees, anti-clockwise from east):	-55.08

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_NUV	148.06	1.48	18.474	0.011	AB
PanSTARRS_g	926.75	2.9	16.483	0.003	AB
PanSTARRS_r	1401.68	4.07	16.033	0.003	AB
PanSTARRS_i	1716.7	2.99	15.813	0.002	AB
2MASS_J	3272.76	253.56	14.218	0.084	Vega
2MASS_H	3229.2	368.55	13.760	0.124	Vega
2MASS_K	2276.04	497.84	13.669	0.237	Vega
WISE_W1	1714.73	26.6	13.116	0.017	Vega
WISE_W3	5901.4	135.1	9.299	0.025	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.312	9.475	9.605
{\rm log}_{10}({\rm SFR})	-1.521	-0.756	-0.106
{\rm log}_{10}({\rm sSFR})	-10.984	-10.232	-9.524
{\rm stellar\ age}	2.706	5.683	7.357

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.690	-1.103	-0.592
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.487	-0.281	0.285

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.152	0.535	0.930
\delta	-0.672	-0.165	0.205
\tau_1/\tau_2	0.717	1.075	1.414
Q_{PAH}	0.860	2.597	5.297
U_{min}	2.983	8.344	14.872
{\rm log}_{10}(\gamma_e)\,	-3.289	-1.799	-0.572

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.586	-1.462	-0.381
{\rm log}_{10}(\tau_{AGN})\,	1.001	1.476	1.956

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.783	-1.028	-0.552
0.03-0.10 Gyr	-1.859	-0.729	0.009
0.10-0.33 Gyr	-1.095	-0.264	0.316
0.33-1.08 Gyr	-1.000	-0.295	0.134
1.08-3.54 Gyr	-1.146	-0.447	-0.154
3.54-11.62 Gyr	-1.445	-0.564	-0.281
11.62-12.91 Gyr	-1.524	-0.557	-0.015

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.264	10.363	10.447
{\rm log}_{10}({\rm SFR})	0.440	0.728	0.976
{\rm log}_{10}({\rm sSFR})	-9.967	-9.657	-9.356
{\rm stellar\ age}	4.684	6.113	7.267

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.571	-0.145	0.055
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.533	0.019	0.246

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.118	0.244	0.458
\delta	-0.452	0.019	0.258
\tau_1/\tau_2	0.702	1.082	1.416
Q_{PAH}	0.753	1.986	3.805
U_{min}	2.812	7.509	14.709
{\rm log}_{10}(\gamma_e)\,	-2.973	-1.952	-0.997

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.853	-1.636	-1.153
{\rm log}_{10}(\tau_{AGN})\,	1.071	1.446	1.835

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.419	0.317	0.570
0.03-0.10 Gyr	0.447	0.827	1.123
0.10-0.33 Gyr	0.453	0.781	1.071
0.33-1.08 Gyr	0.153	0.541	0.755
1.08-3.54 Gyr	0.124	0.460	0.668
3.54-11.62 Gyr	0.066	0.386	0.546
11.62-12.91 Gyr	-0.132	0.444	0.855