2025gt

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Information

Transient

Name: AT2025gt
Right ascension: 15h08m18.79s
Declination: -19d22m18.79s
Discovery Date: Jan. 7, 2025, 7:58 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.071

Host

Name: 2025gt
Right ascension: 15h08m18.84s
Declination: -19d22m22.35s
Redshift: 0.076503
Photometric Redshift: 0.066

Processing Status

Task Name	Status	Time taken (s)
Host match	processed	2.0
Cutout download	processed	2.0
Global aperture construction	processed	0.58
Local aperture photometry	processed	3.37
Global aperture photometry	processed	3.37
Validate local photometry	processed	0.02
Validate global photometry	processed	9.91
Host information	processed	0.08
Global host SED inference	processed	393.93
Local host SED inference	processed	433.89
Transient information	processed	0.0
Transient MWEBV	processed	0.04
Host MWEBV	processed	0.04
Log transient processing status	processed	None

Cutout Download Report

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:

Aperture Photometry

Aperture details

RA, DEC (J2000) = 15h08m18.79s, -19d22m18.79s
semi major axis, semi minor axis (arcsec) = 1.38, 1.38
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	19.9	0.41	20.653	0.022	AB
PanSTARRS_r	39.0	0.42	19.922	0.012	AB
PanSTARRS_i	56.8	0.49	19.514	0.009	AB
PanSTARRS_z	71.83	0.89	19.259	0.013	AB
PanSTARRS_y	92.37	2.09	18.986	0.025	AB

Aperture details

RA, DEC (J2000) = 15h08m18.84s, -19d22m22.30s
semi major axis, semi minor axis (arcsec) = 14.26, 5.93
angle (degrees, anti-clockwise from east) = -67.38

Filter	Flux ${\rm (\mu Jy)}$	Flux error ${\rm (\mu Jy)}$	Mag	Mag error	Mag sys
PanSTARRS_g	740.62	2.69	16.726	0.004	AB
PanSTARRS_r	1449.64	2.72	15.997	0.002	AB
PanSTARRS_i	2215.75	3.16	15.536	0.002	AB
PanSTARRS_z	2795.5	5.77	15.284	0.002	AB
PanSTARRS_y	3504.53	13.44	15.038	0.004	AB
2MASS_J	4578.05	240.5	13.853	0.057	Vega
2MASS_H	6099.41	356.87	13.069	0.064	Vega
2MASS_K	5696.55	373.42	12.673	0.071	Vega
WISE_W1	2857.8	41.34	12.561	0.016	Vega
WISE_W2	1799.91	51.77	12.423	0.031	Vega
WISE_W3	3990.32	167.22	9.723	0.045	Vega
WISE_W4	2132.44	1002.29	8.958	0.510	Vega

Imaging data

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(M_{\ast}/M_{\odot})\,$	9.252	9.375	9.488
${\rm log}_{10}({\rm SFR})$	-1.947	-1.189	-0.402
${\rm log}_{10}({\rm sSFR})$	-11.308	-10.557	-9.741
${\rm stellar\ age}$	4.115	6.638	8.034

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(Z_{\ast}/Z_{\odot})$	-1.280	-0.346	0.047
${\rm log}_{10}(Z_{gas}/Z_{\odot})\,$	-1.546	-0.692	0.127

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
$\tau_2$	0.263	0.774	1.441
$\delta$	-0.496	-0.035	0.249
$\tau_1/\tau_2$	0.642	0.998	1.359
$Q_{PAH}$	0.685	2.394	5.246
$U_{min}$	3.015	8.217	15.616
${\rm log}_{10}(\gamma_e)\,$	-2.745	-1.418	-0.482

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(f_{AGN})\,$	-2.510	-0.862	-0.006
${\rm log}_{10}(\tau_{AGN})\,$	1.069	1.474	1.860

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.475	-1.493	-0.900
0.03-0.10 Gyr	-2.051	-1.174	-0.285
0.10-0.33 Gyr	-1.905	-1.036	-0.347
0.33-1.07 Gyr	-1.747	-0.872	-0.251
1.07-3.51 Gyr	-1.424	-0.621	-0.285
3.51-11.47 Gyr	-1.273	-0.551	-0.356
11.47-12.75 Gyr	-1.475	-0.586	0.028

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(M_{\ast}/M_{\odot})\,$	10.901	10.986	11.045
${\rm log}_{10}({\rm SFR})$	-0.722	0.108	0.756
${\rm log}_{10}({\rm sSFR})$	-11.707	-10.908	-10.216
${\rm stellar\ age}$	6.603	7.565	9.327

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(Z_{\ast}/Z_{\odot})$	-0.388	-0.168	-0.021
${\rm log}_{10}(Z_{gas}/Z_{\odot})\,$	-1.382	-0.273	0.310

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
$\tau_2$	0.208	0.353	0.531
$\delta$	-0.675	-0.253	0.098
$\tau_1/\tau_2$	0.629	1.002	1.378
$Q_{PAH}$	1.203	2.514	4.756
$U_{min}$	2.487	7.390	14.816
${\rm log}_{10}(\gamma_e)\,$	-2.569	-1.708	-0.984

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(f_{AGN})\,$	-4.052	-2.897	-1.922
${\rm log}_{10}(\tau_{AGN})\,$	1.076	1.545	1.923

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.791	0.033	0.420
0.03-0.10 Gyr	-1.094	0.078	0.873
0.10-0.33 Gyr	-1.006	0.169	0.805
0.33-1.07 Gyr	-0.707	0.236	0.666
1.07-3.51 Gyr	0.112	0.733	1.116
3.51-11.47 Gyr	0.761	1.124	1.258
11.47-12.75 Gyr	0.608	1.238	1.855