2025hdn

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Information

Transient

Name: AT2025hdn
Right ascension: 22h47m01.14s
Declination: 25d36m52.49s
Discovery Date: April 6, 2025, 12:09 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.049

Host

Name: 2025hdn
Right ascension: 22h47m01.06s
Declination: 25d36m54.39s
Redshift: None
Photometric Redshift: 0.191
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 2.48
Cutout download processed 22.16
Global aperture construction processed 0.7
Local aperture photometry processed 6.81
Global aperture photometry processed 6.4
Validate local photometry no valid phot 0.03
Validate global photometry processed 19.47
Host information processed 0.1
Global host SED inference processed 543.61
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.1
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) = 22h47m01.14s, 25d36m52.49s
semi major axis, semi minor axis (arcsec) = 0.63, 0.63
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) = 22h47m01.11s, 25d36m52.90s
semi major axis, semi minor axis (arcsec) = 7.78, 2.4
angle (degrees, anti-clockwise from east) = -34.71

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 4.55 1.65 22.255 0.394 AB
GALEX_NUV 3.01 1.5 22.705 0.541 AB
SDSS_u 3.62 4.18 22.503 1.254 AB
SDSS_g 64.48 2.39 19.376 0.040 AB
DES_g 68.11 0.42 19.317 0.007 AB
PanSTARRS_g 69.41 0.94 19.296 0.015 AB
SDSS_r 152.6 3.95 18.441 0.028 AB
PanSTARRS_r 152.92 1.21 18.439 0.009 AB
DES_r 165.4 1.09 18.354 0.007 AB
SDSS_i 293.94 6.01 17.729 0.022 AB
PanSTARRS_i 292.36 1.6 17.735 0.006 AB
PanSTARRS_z 406.98 2.7 17.376 0.007 AB
SDSS_z 478.38 19.24 17.201 0.044 AB
DES_z 461.39 4.06 17.240 0.010 AB
PanSTARRS_y 451.12 7.89 17.264 0.019 AB
2MASS_J 483.15 143.06 16.295 0.321 Vega
2MASS_H 423.21 210.64 15.966 0.540 Vega
2MASS_K 420.7 219.96 15.502 0.568 Vega
WISE_W1 214.15 10.94 15.374 0.055 Vega
WISE_W2 135.2 15.21 15.234 0.122 Vega
WISE_W3 188.75 67.19 13.036 0.386 Vega
WISE_W4 216.89 381.18 11.439 1.908 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})\, 10.817 10.911 11.015
{\rm log}_{10}({\rm SFR}) -0.277 0.826 1.490
{\rm log}_{10}({\rm sSFR}) -11.165 -10.062 -9.366
{\rm stellar\ age} 5.477 6.638 9.938

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.508 -1.192 -0.873
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.996 -0.052 0.335

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.638 0.817 1.008
\delta -0.926 -0.813 -0.675
\tau_1/\tau_2 0.394 0.882 1.326
Q_{PAH} 0.230 0.916 2.106
U_{min} 2.573 7.728 14.907
{\rm log}_{10}(\gamma_e)\, -3.413 -2.430 -1.524

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.290 -3.249 -2.501
{\rm log}_{10}(\tau_{AGN})\, 1.177 1.569 1.897

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.931 -0.492 0.161
0.03-0.10 Gyr -0.280 0.977 1.650
0.10-0.32 Gyr -0.589 0.872 1.412
0.32-1.01 Gyr -2.432 0.276 0.928
1.01-3.22 Gyr -1.848 0.550 1.038
3.22-10.26 Gyr -0.214 1.025 1.219
10.26-11.40 Gyr -0.064 1.227 2.136