2025hej

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Information

Transient

Name: AT2025hej
Right ascension: 20h19m52.83s
Declination: 19d23m40.93s
Discovery Date: April 6, 2025, 11:42 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.146

Host

Name: 2025hej
Right ascension: 20h19m52.73s
Declination: 19d23m39.22s
Redshift: None
Photometric Redshift: 0.116
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 6.22
Cutout download processed 3.74
Global aperture construction processed 1.53
Local aperture photometry processed 4.29
Global aperture photometry processed 4.49
Validate local photometry no valid phot 0.02
Validate global photometry processed 24.04
Host information processed 0.1
Global host SED inference processed 400.47
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.09
Host MWEBV processed 0.06
Log transient processing status blocked 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) = 20h19m52.83s, 19d23m40.93s
semi major axis, semi minor axis (arcsec) = 0.95, 0.95
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) = 20h19m52.74s, 19d23m39.41s
semi major axis, semi minor axis (arcsec) = 5.04, 3.69
angle (degrees, anti-clockwise from east) = -62.79

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 8.29 2.5 21.604 0.328 AB
PanSTARRS_g 111.43 0.94 18.782 0.009 AB
PanSTARRS_r 217.06 1.25 18.059 0.006 AB
PanSTARRS_i 315.11 2.21 17.654 0.008 AB
PanSTARRS_z 408.21 4.01 17.373 0.011 AB
PanSTARRS_y 459.43 8.1 17.244 0.019 AB
2MASS_J 530.36 151.98 16.194 0.311 Vega
2MASS_H 833.08 238.96 15.231 0.311 Vega
2MASS_K 550.35 267.66 15.211 0.528 Vega
WISE_W1 188.57 66.13 15.512 0.381 Vega
WISE_W2 107.55 48.87 15.482 0.493 Vega
WISE_W3 476.24 71.84 12.031 0.164 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})\, 10.372 10.437 10.506
{\rm log}_{10}({\rm SFR}) -0.233 0.155 0.487
{\rm log}_{10}({\rm sSFR}) -10.630 -10.260 -9.903
{\rm stellar\ age} 5.817 6.847 8.196

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.739 -0.494 -0.303
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.609 -0.764 0.124

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.155 0.304 0.516
\delta -0.504 -0.028 0.265
\tau_1/\tau_2 0.650 1.031 1.393
Q_{PAH} 0.649 1.584 3.072
U_{min} 2.644 7.475 14.137
{\rm log}_{10}(\gamma_e)\, -2.945 -2.121 -1.287

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.794 -2.268 -1.367
{\rm log}_{10}(\tau_{AGN})\, 1.011 1.404 1.824

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.981 -0.277 0.047
0.03-0.10 Gyr -0.212 0.242 0.619
0.10-0.32 Gyr 0.008 0.381 0.690
0.32-1.05 Gyr -0.219 0.234 0.536
1.05-3.40 Gyr -0.061 0.378 0.652
3.40-11.03 Gyr 0.292 0.566 0.696
11.03-12.26 Gyr 0.029 0.663 1.220