2025hhg results

Information

Transient
Name:AT2025hhg
Right ascension: 21h24m24.10s
Declination:2d22m41.47s
Discovery Date:April 12, 2025, 3:23 a.m.
Classification:None
Redshift:None
MW E(B-V):0.043
Host
Name:2025hhg
Right ascension: 21h24m24.06s
Declination:2d22m40.80s
Redshift:None
Photometric Redshift:0.114
 

Cutout Download Report

Downloaded Unavailable
2MASS_H
2MASS_J
2MASS_K
WISE_W1
WISE_W2
WISE_W3
WISE_W4
GALEX_NUV
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_z
 GALEX_FUV
DES_i
DES_Y
 

Processing Status: blocked

Task Name Status Time (s)
Cutout download processed 19.07
Transient MWEBV processed 0.1
Host match processed 3.15
Host information processed 0.1
Host MWEBV processed 0.06
Global aperture construction processed 0.64
Global aperture photometry processed 6.78
Validate global photometry processed 17.98
Global host SED inference processed 445.06
Local aperture photometry processed 6.53
Validate local photometry processed 0.03
Local host SED inference not enough filters 18.39
 

Imaging data


 

Spectral Energy Distribution


 

Aperture Photometry


Aperture details

RA, DEC (J2000):21h24m24.10s, 2d22m41.47s
semi major axis, semi minor axis (arcsec):0.97, 0.97
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_z 32.5 1.32 20.120 0.044 AB

Aperture details

RA, DEC (J2000):21h24m24.05s, 2d22m40.82s
semi major axis, semi minor axis (arcsec):6.38, 2.69
angle (degrees, anti-clockwise from east):-0.37
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 19.93 2.07 20.651 0.113 AB
SDSS_u 27.3 3.1 20.310 0.123 AB
SDSS_g 92.88 2.93 18.980 0.034 AB
DES_g 96.28 0.8 18.941 0.009 AB
PanSTARRS_g 92.15 1.19 18.989 0.014 AB
SDSS_r 116.11 3.34 18.738 0.031 AB
PanSTARRS_r 124.57 1.1 18.661 0.010 AB
DES_r 132.19 1.35 18.597 0.011 AB
SDSS_i 142.71 4.26 18.514 0.032 AB
PanSTARRS_i 147.75 1.14 18.476 0.008 AB
PanSTARRS_z 152.82 2.96 18.440 0.021 AB
SDSS_z 190.8 12.27 18.199 0.070 AB
DES_z 161.56 3.21 18.379 0.022 AB
PanSTARRS_y 193.6 9.13 18.183 0.051 AB
2MASS_J 36.42 115.07 19.102 3.430 Vega
2MASS_H 231.1 187.41 16.623 0.880 Vega
2MASS_K 116.24 214.07 16.899 1.999 Vega
WISE_W1 78.12 14.75 16.469 0.205 Vega
WISE_W2 56.37 18.44 16.183 0.355 Vega
WISE_W3 -15.5 64.7 Vega
WISE_W4 157.22 430.15 11.789 2.970 Vega
 

Host SED inference


Local parameter details

Documentation

Data not available


Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.297 9.503 9.730
{\rm log}_{10}({\rm SFR}) -2.161 -0.484 0.294
{\rm log}_{10}({\rm sSFR}) -11.684 -10.010 -9.209
{\rm stellar\ age} 0.257 1.757 5.161

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.658 -1.122 -0.349
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.865 0.124 0.376

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.202 0.364 0.642
\delta -0.297 -0.017 0.207
\tau_1/\tau_2 0.527 0.986 1.459
Q_{PAH} 0.494 1.589 3.406
U_{min} 3.457 10.005 17.435
{\rm log}_{10}(\gamma_e)\, -2.782 -1.658 -0.594

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.773 -2.140 -1.358
{\rm log}_{10}(\tau_{AGN})\, 1.047 1.503 1.887

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.552 -1.204 -0.526
0.03-0.10 Gyr -2.438 -0.404 0.444
0.10-0.32 Gyr 0.345 0.808 1.075
0.32-1.05 Gyr -1.871 -0.023 0.484
1.05-3.41 Gyr -3.999 -1.141 -0.133
3.41-11.06 Gyr -4.703 -1.486 -0.363
11.06-12.28 Gyr -4.795 -1.360 -0.126