2025ch

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Information

Transient

Name: AT2025ch
Right ascension: 2h14m23.12s
Declination: -6d42m06.78s
Discovery Date: Jan. 2, 2025, 5:18 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.024

Host

Name: 2025ch
Right ascension: 2h14m23.27s
Declination: -6d42m08.46s
Redshift: 0.053177
Photometric Redshift: 0.041

Processing Status

Task Name	Status	Time taken (s)
Host match	processed	2.78
Cutout download	processed	15.26
Global aperture construction	processed	0.79
Local aperture photometry	processed	6.14
Global aperture photometry	processed	5.98
Validate local photometry	processed	0.02
Validate global photometry	processed	15.46
Host information	processed	0.11
Global host SED inference	processed	660.84
Local host SED inference	processed	657.05
Transient information	processed	0.0
Transient MWEBV	processed	0.08
Host MWEBV	processed	0.07
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) = 2h14m23.12s, -6d42m06.78s
semi major axis, semi minor axis (arcsec) = 1.93, 1.93
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	30.13	2.17	20.202	0.078	AB
SDSS_g	134.06	3.05	18.582	0.025	AB
PanSTARRS_g	187.61	0.57	18.217	0.003	AB
SDSS_r	280.22	4.45	17.781	0.017	AB
PanSTARRS_r	372.55	0.75	17.472	0.002	AB
SDSS_i	402.56	5.45	17.388	0.015	AB
PanSTARRS_i	537.38	0.75	17.074	0.002	AB
PanSTARRS_z	654.37	1.35	16.860	0.002	AB
SDSS_z	527.17	8.62	17.095	0.018	AB
PanSTARRS_y	783.74	3.26	16.665	0.005	AB

Aperture details

RA, DEC (J2000) = 2h14m23.26s, -6d42m08.28s
semi major axis, semi minor axis (arcsec) = 26.85, 10.28
angle (degrees, anti-clockwise from east) = -109.91

Filter	Flux ${\rm (\mu Jy)}$	Flux error ${\rm (\mu Jy)}$	Mag	Mag error	Mag sys
SDSS_u	748.83	16.3	16.714	0.024	AB
SDSS_g	2228.41	13.15	15.530	0.006	AB
PanSTARRS_g	2485.14	4.37	15.412	0.002	AB
SDSS_r	4482.05	19.28	14.771	0.005	AB
PanSTARRS_r	4571.9	5.33	14.750	0.001	AB
SDSS_i	6319.32	24.96	14.398	0.004	AB
PanSTARRS_i	6389.96	5.46	14.386	0.001	AB
PanSTARRS_z	7747.14	10.48	14.177	0.001	AB
SDSS_z	8514.3	58.95	14.075	0.008	AB
PanSTARRS_y	9367.89	27.18	13.971	0.003	AB
WISE_W1	6566.85	48.15	11.658	0.008	Vega
WISE_W2	3955.94	63.19	11.568	0.017	Vega
WISE_W3	9112.6	184.71	8.827	0.022	Vega
WISE_W4	9904.89	1262.9	7.290	0.138	Vega

Imaging data

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(M_{\ast}/M_{\odot})\,$	9.862	9.977	10.107
${\rm log}_{10}({\rm SFR})$	-1.205	-0.583	-0.078
${\rm log}_{10}({\rm sSFR})$	-11.229	-10.518	-10.016
${\rm stellar\ age}$	5.955	7.643	10.737

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(Z_{\ast}/Z_{\odot})$	-1.165	-0.627	-0.310
${\rm log}_{10}(Z_{gas}/Z_{\odot})\,$	-1.539	-0.886	-0.225

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
$\tau_2$	0.385	0.779	1.153
$\delta$	-0.756	-0.340	-0.032
$\tau_1/\tau_2$	0.486	0.861	1.228
$Q_{PAH}$	0.574	2.777	4.982
$U_{min}$	2.817	7.770	14.083
${\rm log}_{10}(\gamma_e)\,$	-3.309	-2.252	-0.975

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(f_{AGN})\,$	-3.910	-1.602	-0.622
${\rm log}_{10}(\tau_{AGN})\,$	1.027	1.475	1.884

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.027	-0.476	-0.061
0.03-0.10 Gyr	-1.894	-0.717	-0.048
0.10-0.33 Gyr	-2.112	-0.707	-0.037
0.33-1.08 Gyr	-1.950	-0.548	0.075
1.08-3.57 Gyr	-1.764	-0.308	0.154
3.57-11.74 Gyr	-0.652	0.037	0.241
11.74-13.05 Gyr	-0.503	0.217	1.065

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(M_{\ast}/M_{\odot})\,$	10.978	11.068	11.155
${\rm log}_{10}({\rm SFR})$	-0.039	0.643	1.166
${\rm log}_{10}({\rm sSFR})$	-11.127	-10.425	-9.857
${\rm stellar\ age}$	7.359	8.285	11.624

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(Z_{\ast}/Z_{\odot})$	-0.633	-0.343	-0.171
${\rm log}_{10}(Z_{gas}/Z_{\odot})\,$	-0.625	0.258	0.423

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
$\tau_2$	0.166	0.302	0.525
$\delta$	-0.690	-0.239	0.263
$\tau_1/\tau_2$	0.502	0.902	1.318
$Q_{PAH}$	0.894	1.947	4.033
$U_{min}$	2.819	7.879	15.209
${\rm log}_{10}(\gamma_e)\,$	-3.253	-2.341	-1.361

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(f_{AGN})\,$	-3.717	-2.437	-1.878
${\rm log}_{10}(\tau_{AGN})\,$	0.972	1.404	1.868

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.587	0.099	0.627
0.03-0.10 Gyr	-0.228	0.718	1.321
0.10-0.33 Gyr	-0.910	0.194	0.783
0.33-1.08 Gyr	-1.671	-0.080	0.479
1.08-3.57 Gyr	-1.005	0.329	0.932
3.57-11.74 Gyr	0.329	1.159	1.319
11.74-13.05 Gyr	0.722	1.486	2.221