2025grb results

2025grb results

Information

Transient

Name:	`AT2025grb`
Right ascension:	`12h16m37.66s`
Declination:	`-8d07m17.22s`
Discovery Date:	`Feb. 7, 2025, 1:47 p.m.`
Classification:	`None`
Redshift:	`None`
MW E(B-V):	`0.038`

Host

Name:	`2025grb`
Right ascension:	`12h16m37.56s`
Declination:	`-8d07m13.45s`
Redshift:	`0.066872`
Photometric Redshift:	`0.087`

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 DES_g DES_r DES_z	SDSS_i SDSS_r SDSS_u SDSS_z SDSS_g DES_i DES_Y

Processing Status: completed

Task Name	Status	Time (s)
Cutout download	processed	9.57
Transient MWEBV	processed	0.05
Host match	processed	1.71
Host information	processed	0.09
Host MWEBV	processed	0.05
Global aperture construction	processed	0.68
Global aperture photometry	processed	4.43
Validate global photometry	processed	10.09
Global host SED inference	processed	669.35
Local aperture photometry	processed	5.17
Validate local photometry	processed	0.02
Local host SED inference	processed	428.21

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	12h16m37.66s, -8d07m17.22s
semi major axis, semi minor axis (arcsec):	1.56, 1.56
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	20.62	0.23	20.614	0.012	AB
PanSTARRS_g	20.76	0.38	20.607	0.020	AB
PanSTARRS_r	34.9	0.59	20.043	0.018	AB
DES_r	39.23	0.48	19.916	0.013	AB
PanSTARRS_i	47.09	0.74	19.718	0.017	AB
PanSTARRS_z	56.37	1.06	19.522	0.020	AB
DES_z	62.55	1.5	19.409	0.026	AB
PanSTARRS_y	67.86	2.25	19.321	0.036	AB

Aperture details

RA, DEC (J2000):	12h16m37.55s, -8d07m13.36s
semi major axis, semi minor axis (arcsec):	16.12, 11.55
angle (degrees, anti-clockwise from east):	-109.12

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	37.74	6.82	19.958	0.196	AB
WISE_W1	1463.64	29.98	13.287	0.022	Vega
WISE_W2	899.96	34.68	13.175	0.042	Vega
WISE_W3	2159.71	172.55	10.390	0.087	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.843	8.981	9.083
{\rm log}_{10}({\rm SFR})	-2.471	-1.614	-0.815
{\rm log}_{10}({\rm sSFR})	-11.565	-10.632	-9.748
{\rm stellar\ age}	4.010	6.253	7.421

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.272	-0.617	-0.215
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.627	-0.711	0.217

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.198	0.531	0.915
\delta	-0.559	-0.150	0.180
\tau_1/\tau_2	0.677	1.051	1.386
Q_{PAH}	1.249	3.121	5.266
U_{min}	3.262	8.295	15.053
{\rm log}_{10}(\gamma_e)\,	-2.708	-1.535	-0.499

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.954	-0.551	-0.119
{\rm log}_{10}(\tau_{AGN})\,	1.098	1.481	1.972

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.844	-1.859	-1.290
0.03-0.10 Gyr	-2.665	-1.599	-0.716
0.10-0.33 Gyr	-2.109	-1.248	-0.566
0.33-1.08 Gyr	-1.665	-0.985	-0.586
1.08-3.53 Gyr	-1.397	-0.881	-0.659
3.53-11.58 Gyr	-1.513	-0.953	-0.757
11.58-12.87 Gyr	-1.788	-1.008	-0.548

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.306	10.516	10.675
{\rm log}_{10}({\rm SFR})	-0.169	0.256	0.756
{\rm log}_{10}({\rm sSFR})	-10.674	-10.218	-9.750
{\rm stellar\ age}	4.438	7.149	10.237

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.543	-0.176	0.105
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.393	-0.680	-0.238

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.147	0.276	0.490
\delta	-0.767	-0.328	0.078
\tau_1/\tau_2	0.296	0.765	1.315
Q_{PAH}	0.261	1.036	2.734
U_{min}	2.350	6.883	13.754
{\rm log}_{10}(\gamma_e)\,	-3.364	-2.230	-1.101

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.229	-2.977	-1.841
{\rm log}_{10}(\tau_{AGN})\,	1.020	1.512	1.932

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.353	0.112	0.721
0.03-0.10 Gyr	-0.924	0.100	0.853
0.10-0.33 Gyr	-1.461	0.088	0.703
0.33-1.08 Gyr	-1.423	0.248	0.798
1.08-3.53 Gyr	-0.815	0.379	0.768
3.53-11.58 Gyr	-0.379	0.485	0.767
11.58-12.87 Gyr	-0.160	0.690	1.592