2025chn

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Information

Transient

Name: AT2025chn
Right ascension: 7h54m58.10s
Declination: -1d45m57.96s
Discovery Date: Feb. 20, 2025, 7:15 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.027

Host

Name: 2025chn
Right ascension: 7h54m59.19s
Declination: -1d45m47.29s
Redshift: 0.120957
Photometric Redshift: 0.173

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	2.78
Cutout download	processed	14.95
Global aperture construction	processed	0.64
Local aperture photometry	processed	5.14
Global aperture photometry	processed	5.13
Validate local photometry	no valid phot	0.02
Validate global photometry	processed	14.88
Host information	processed	0.1
Global host SED inference	processed	424.32
Local host SED inference	not processed	None
Transient information	processed	0.0
Transient MWEBV	processed	0.12
Host MWEBV	processed	0.04
Processing status	blocked	N/A	N/A

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) = 7h54m58.10s, -1d45m57.96s
semi major axis, semi minor axis (arcsec) = 0.92, 0.92
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys

Aperture details

RA, DEC (J2000) = 7h54m59.18s, -1d45m47.13s
semi major axis, semi minor axis (arcsec) = 7.46, 6.37
angle (degrees, anti-clockwise from east) = -160.03

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	39.87	6.64	19.898	0.181	AB
SDSS_g	155.43	3.99	18.421	0.028	AB
PanSTARRS_g	195.81	2.25	18.170	0.012	AB
SDSS_r	448.79	6.69	17.270	0.016	AB
PanSTARRS_r	457.28	3.13	17.250	0.007	AB
SDSS_i	696.23	9.39	16.793	0.015	AB
PanSTARRS_i	658.04	2.7	16.854	0.004	AB
PanSTARRS_z	905.11	5.46	16.508	0.007	AB
SDSS_z	935.18	23.45	16.473	0.027	AB
DES_z	970.87	11.51	16.432	0.013	AB
PanSTARRS_y	1165.57	12.18	16.234	0.011	AB
2MASS_H	2449.64	319.63	14.060	0.142	Vega
WISE_W1	583.91	597.19	14.285	1.110	Vega
WISE_W2	829.11	94.07	13.264	0.123	Vega
WISE_W3	1074.88	95.9	11.148	0.097	Vega

Imaging data

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.920	10.982	11.047
{\rm log}_{10}({\rm SFR})	-1.230	-0.330	0.421
{\rm log}_{10}({\rm sSFR})	-12.216	-11.329	-10.555
{\rm stellar\ age}	6.559	7.448	9.625

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.143	0.029	0.134
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.075	-0.682	-0.375

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.214	0.410	0.634
\delta	-0.728	-0.320	0.140
\tau_1/\tau_2	0.372	0.702	1.092
Q_{PAH}	0.563	1.935	4.173
U_{min}	2.525	7.295	14.538
{\rm log}_{10}(\gamma_e)\,	-3.131	-2.115	-1.201

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.931	-2.415	-1.320
{\rm log}_{10}(\tau_{AGN})\,	0.946	1.272	1.761

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.982	0.003	0.665
0.03-0.10 Gyr	-2.271	-0.750	0.261
0.10-0.32 Gyr	-2.322	-0.700	0.284
0.32-1.05 Gyr	-2.214	-0.494	0.471
1.05-3.39 Gyr	-0.863	0.527	1.066
3.39-10.98 Gyr	0.815	1.152	1.284
10.98-12.20 Gyr	0.634	1.282	1.970