2025ghd

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Information

Transient

Name: AT2025ghd
Right ascension: 20h18m22.29s
Declination: -27d27m05.28s
Discovery Date: March 26, 2025, 3:36 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.071

Host

Name: 2025ghd
Right ascension: 20h18m22.68s
Declination: -27d27m17.28s
Redshift: 0.020454
Photometric Redshift: 0.094
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 1.06
Cutout download processed 4.61
Global aperture construction processed 0.76
Local aperture photometry processed 4.35
Global aperture photometry processed 4.91
Validate local photometry processed 0.02
Validate global photometry processed 12.87
Host information processed 0.11
Global host SED inference processed 407.7
Local host SED inference processed 492.77
Transient information processed 0.0
Transient MWEBV processed 0.13
Host MWEBV processed 0.07
Log transient processing status processed 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) = 20h18m22.29s, -27d27m05.28s
semi major axis, semi minor axis (arcsec) = 4.83, 4.83
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 20.33 2.49 20.629 0.133 AB
PanSTARRS_g 372.54 1.98 17.472 0.006 AB
PanSTARRS_r 656.63 1.92 16.857 0.003 AB
PanSTARRS_i 879.21 1.34 16.540 0.002 AB
PanSTARRS_z 1099.65 4.24 16.297 0.004 AB
PanSTARRS_y 1325.2 13.64 16.094 0.011 AB
2MASS_J 1737.35 105.45 14.905 0.066 Vega
2MASS_H 2134.85 184.82 14.209 0.094 Vega
2MASS_K 2194.11 184.58 13.709 0.091 Vega

Aperture details

RA, DEC (J2000) = 20h18m22.75s, -27d27m18.08s
semi major axis, semi minor axis (arcsec) = 50.69, 7.81
angle (degrees, anti-clockwise from east) = -33.23

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 149.67 7.4 18.462 0.054 AB
GALEX_NUV 233.82 5.64 17.978 0.026 AB
PanSTARRS_g 3116.19 7.93 15.166 0.003 AB
PanSTARRS_r 5464.57 7.7 14.556 0.002 AB
PanSTARRS_z 9058.12 16.91 14.007 0.002 AB
2MASS_J 15256.74 444.03 12.546 0.032 Vega
2MASS_H 18702.56 778.71 11.853 0.045 Vega
2MASS_K 16499.16 779.08 11.519 0.051 Vega
WISE_W1 8581.84 69.94 11.367 0.009 Vega
WISE_W2 5111.08 77.66 11.290 0.016 Vega
WISE_W4 22253.84 1871.6 6.411 0.091 Vega
 

Imaging data

 

Spectral Energy Distribution

 
 
 
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.300 9.387 9.503
{\rm log}_{10}({\rm SFR}) -1.174 -0.740 -0.400
{\rm log}_{10}({\rm sSFR}) -10.594 -10.154 -9.778
{\rm stellar\ age} 5.212 7.300 8.986

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.408 -0.749 -0.299
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.715 -1.106 -0.158

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.290 0.961 1.344
\delta -0.033 0.201 0.338
\tau_1/\tau_2 0.625 0.982 1.334
Q_{PAH} 0.539 2.043 4.622
U_{min} 2.665 7.757 14.903
{\rm log}_{10}(\gamma_e)\, -3.059 -1.748 -0.828

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.273 -2.245 -0.471
{\rm log}_{10}(\tau_{AGN})\, 1.046 1.554 1.975

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.292 -0.769 -0.448
0.03-0.10 Gyr -1.281 -0.753 -0.352
0.10-0.33 Gyr -1.364 -0.720 -0.216
0.33-1.10 Gyr -1.429 -0.763 -0.247
1.10-3.66 Gyr -1.305 -0.631 -0.309
3.66-12.14 Gyr -0.902 -0.544 -0.375
12.14-13.48 Gyr -1.064 -0.456 0.126

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.173 10.242 10.320
{\rm log}_{10}({\rm SFR}) -0.212 0.003 0.262
{\rm log}_{10}({\rm sSFR}) -10.505 -10.251 -9.987
{\rm stellar\ age} 5.940 7.058 8.231

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.686 -0.343 -0.086
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.778 -1.508 -0.574

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.436 0.643 0.835
\delta -0.233 0.057 0.264
\tau_1/\tau_2 0.287 0.634 1.028
Q_{PAH} 0.182 0.543 1.484
U_{min} 2.100 5.493 11.054
{\rm log}_{10}(\gamma_e)\, -3.789 -3.420 -2.509

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.387 -3.536 -2.594
{\rm log}_{10}(\tau_{AGN})\, 1.069 1.526 1.927

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.359 0.072 0.288
0.03-0.10 Gyr -0.509 -0.041 0.327
0.10-0.33 Gyr -0.399 0.077 0.440
0.33-1.10 Gyr -0.250 0.143 0.381
1.10-3.66 Gyr -0.015 0.304 0.506
3.66-12.14 Gyr 0.118 0.320 0.462
12.14-13.48 Gyr -0.112 0.351 0.804