2025ghk results

Information

Transient
Name:AT2025ghk
Right ascension: 4h37m45.57s
Declination:-22d36m23.31s
Discovery Date:March 28, 2025, 12:30 a.m.
Classification:None
Redshift:None
MW E(B-V):0.044
Host
Name:2025ghk
Right ascension: 4h37m45.52s
Declination:-22d36m25.13s
Redshift:0.066020
Photometric Redshift:0.228
 

Cutout Download Report

Downloaded Unavailable
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
DES_g
DES_r
DES_z
SDSS_i
SDSS_r
SDSS_u
SDSS_z
SDSS_g
DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 10.99
Transient MWEBV processed 0.06
Host match processed 2.82
Host information processed 0.08
Host MWEBV processed 0.05
Global aperture construction processed 0.8
Global aperture photometry processed 5.23
Validate global photometry processed 14.41
Global host SED inference processed 506.49
Local aperture photometry processed 5.4
Validate local photometry processed 0.02
Local host SED inference processed 457.3
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):4h37m45.57s, -22d36m23.31s
semi major axis, semi minor axis (arcsec):1.58, 1.58
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_g 6.91 0.11 21.801 0.018 AB
PanSTARRS_g 8.04 0.39 21.637 0.052 AB
PanSTARRS_r 11.45 0.6 21.253 0.056 AB
DES_r 11.1 0.14 21.286 0.013 AB
PanSTARRS_i 12.45 0.56 21.162 0.048 AB
PanSTARRS_z 13.27 1.47 21.093 0.121 AB
DES_z 14.55 0.5 20.993 0.037 AB
PanSTARRS_y 18.34 2.7 20.741 0.160 AB

Aperture details

RA, DEC (J2000):4h37m45.51s, -22d36m25.26s
semi major axis, semi minor axis (arcsec):2.66, 1.6
angle (degrees, anti-clockwise from east):-44.58
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 4.55 1.9 22.254 0.454 AB
GALEX_NUV 6.84 1.75 21.812 0.277 AB
DES_g 17.64 0.16 20.784 0.010 AB
PanSTARRS_g 19.25 0.51 20.689 0.029 AB
PanSTARRS_r 26.88 0.75 20.326 0.030 AB
DES_r 27.3 0.19 20.309 0.008 AB
PanSTARRS_i 31.38 0.68 20.159 0.023 AB
PanSTARRS_z 32.44 1.77 20.122 0.059 AB
DES_z 35.45 0.7 20.026 0.021 AB
PanSTARRS_y 41.78 3.18 19.848 0.083 AB
2MASS_J 98.9 81.68 18.017 0.897 Vega
2MASS_H 111.1 119.84 17.418 1.171 Vega
2MASS_K 287.14 157.17 15.917 0.594 Vega
WISE_W1 25.5 7.42 17.685 0.316 Vega
WISE_W2 5.05 11.47 18.802 2.463 Vega
WISE_W3 4.14 44.72 17.183 11.727 Vega
WISE_W4 550.99 407.46 10.427 0.803 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 7.981 8.187 8.341
{\rm log}_{10}({\rm SFR}) -2.385 -1.534 -0.340
{\rm log}_{10}({\rm sSFR}) -10.669 -9.805 -8.395
{\rm stellar\ age} 0.391 4.610 6.705

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.687 -1.210 -0.560
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.564 -0.705 0.153

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.170 0.598 1.340
\delta -0.415 -0.048 0.215
\tau_1/\tau_2 0.635 1.016 1.428
Q_{PAH} 1.215 2.840 5.167
U_{min} 3.166 8.358 16.416
{\rm log}_{10}(\gamma_e)\, -2.779 -1.615 -0.621

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.823 -0.182 0.269
{\rm log}_{10}(\tau_{AGN})\, 1.082 1.538 1.932

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.921 -1.997 -1.378
0.03-0.10 Gyr -2.508 -1.503 -0.182
0.10-0.33 Gyr -2.468 -1.430 -0.700
0.33-1.08 Gyr -3.664 -1.551 -1.127
1.08-3.53 Gyr -4.366 -1.797 -1.444
3.53-11.59 Gyr -5.027 -2.014 -1.587
11.59-12.88 Gyr -5.298 -2.079 -1.387

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.448 8.641 8.798
{\rm log}_{10}({\rm SFR}) -1.088 -0.709 -0.324
{\rm log}_{10}({\rm sSFR}) -9.764 -9.373 -8.828
{\rm stellar\ age} 3.429 6.109 7.887

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.501 -0.812 -0.226
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.000 0.123 0.362

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.138 0.471 0.820
\delta -0.132 0.204 0.348
\tau_1/\tau_2 0.706 1.084 1.471
Q_{PAH} 1.290 2.879 4.764
U_{min} 3.332 9.127 16.900
{\rm log}_{10}(\gamma_e)\, -2.518 -1.393 -0.511

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.449 -1.268 -0.403
{\rm log}_{10}(\tau_{AGN})\, 1.158 1.587 1.941

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.092 -1.347 -1.004
0.03-0.10 Gyr -1.008 -0.587 -0.172
0.10-0.33 Gyr -1.563 -0.918 -0.479
0.33-1.08 Gyr -2.299 -1.361 -0.970
1.08-3.53 Gyr -2.314 -1.435 -1.123
3.53-11.59 Gyr -2.188 -1.377 -1.123
11.59-12.88 Gyr -2.378 -1.331 -0.684