2025yhd results

Information

Transient
Name:AT2025yhd
Right ascension: 23h03m11.52s
Declination:-3d13m47.67s
Discovery Date:Sept. 22, 2025, 6:14 p.m.
Classification:None
Redshift:None
MW E(B-V):0.041
Host
Name:
Right ascension: 23h03m11.49s
Declination:-3d13m39.14s
Redshift:None
Photometric Redshift:0.073
 

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
SDSS_i
SDSS_r
SDSS_u
SDSS_z
SDSS_g
DES_g
DES_r
DES_z
 DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 17.12
Transient MWEBV processed 0.1
Host match processed 5.2
Host information processed 0.11
Host MWEBV processed 0.05
Global aperture construction processed 0.63
Global aperture photometry processed 6.38
Validate global photometry processed 17.35
Global host SED inference processed 395.74
Local aperture photometry processed 6.75
Validate local photometry processed 0.03
Local host SED inference processed 689.38
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):23h03m11.52s, -3d13m47.67s
semi major axis, semi minor axis (arcsec):1.44, 1.44
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 0.4 0.08 24.901 0.219 AB
PanSTARRS_g 1.04 0.3 23.857 0.309 AB
SDSS_r 0.39 0.82 24.926 2.300 AB
PanSTARRS_r 1.14 0.36 23.759 0.339 AB
DES_r 0.76 0.22 24.194 0.319 AB
SDSS_i 3.84 1.47 22.438 0.415 AB
PanSTARRS_i 0.99 0.48 23.909 0.527 AB
PanSTARRS_z 2.96 0.92 22.723 0.338 AB
SDSS_z 7.86 4.31 21.661 0.596 AB
DES_z 1.06 0.36 23.838 0.368 AB
PanSTARRS_y 4.11 2.33 22.364 0.616 AB

Aperture details

RA, DEC (J2000):23h03m11.50s, -3d13m38.69s
semi major axis, semi minor axis (arcsec):8.32, 4.38
angle (degrees, anti-clockwise from east):-156.81
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 27.45 4.94 20.304 0.195 AB
GALEX_NUV 32.29 3.43 20.127 0.115 AB
SDSS_u 71.8 6.44 19.260 0.097 AB
SDSS_g 156.74 4.02 18.412 0.028 AB
DES_g 165.69 0.56 18.352 0.004 AB
PanSTARRS_g 176.45 1.28 18.283 0.008 AB
SDSS_r 220.48 5.04 18.042 0.025 AB
PanSTARRS_r 218.89 1.51 18.049 0.008 AB
DES_r 222.55 1.49 18.031 0.007 AB
SDSS_i 266.21 7.09 17.837 0.029 AB
PanSTARRS_i 255.74 2.03 17.881 0.009 AB
PanSTARRS_z 264.87 3.88 17.842 0.016 AB
SDSS_z 307.56 18.43 17.680 0.065 AB
DES_z 266.2 2.9 17.837 0.012 AB
PanSTARRS_y 291.37 9.68 17.739 0.036 AB
2MASS_J 134.13 187.7 17.686 1.519 Vega
2MASS_H 193.71 286.26 16.815 1.604 Vega
2MASS_K -105.69 308.85 Vega
WISE_W1 159.02 14.44 15.697 0.099 Vega
WISE_W2 102.95 19.77 15.529 0.208 Vega
WISE_W3 199.61 92.8 12.976 0.505 Vega
WISE_W4 594.49 456.97 10.345 0.835 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 7.176 7.539 8.170
{\rm log}_{10}({\rm SFR}) -0.980 -0.714 -0.397
{\rm log}_{10}({\rm sSFR}) -8.828 -8.020 -7.961
{\rm stellar\ age} 0.016 0.667 7.356

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.802 -0.241 0.043
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.439 -0.738 -0.011

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 2.244 2.798 3.383
\delta 0.205 0.308 0.373
\tau_1/\tau_2 0.552 0.829 1.155
Q_{PAH} 0.430 1.748 4.540
U_{min} 3.342 9.855 18.039
{\rm log}_{10}(\gamma_e)\, -3.377 -2.183 -0.881

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.695 -0.566 0.077
{\rm log}_{10}(\tau_{AGN})\, 0.940 1.409 1.780

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.530 -0.242 0.067
0.03-0.10 Gyr -4.290 -2.736 -1.142
0.10-0.33 Gyr -7.242 -4.816 -2.384
0.33-1.07 Gyr -8.768 -5.517 -2.587
1.07-3.51 Gyr -9.128 -5.124 -2.394
3.51-11.51 Gyr -9.194 -4.457 -1.991
11.51-12.79 Gyr -9.395 -4.025 -1.483

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.167 9.363 9.549
{\rm log}_{10}({\rm SFR}) -0.813 -0.256 0.155
{\rm log}_{10}({\rm sSFR}) -10.219 -9.635 -9.190
{\rm stellar\ age} 1.370 3.911 5.717

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.551 -0.999 -0.498
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.547 -0.039 0.339

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.117 0.236 0.397
\delta -0.582 -0.201 0.074
\tau_1/\tau_2 0.785 1.178 1.577
Q_{PAH} 1.006 2.929 5.187
U_{min} 2.768 8.166 15.218
{\rm log}_{10}(\gamma_e)\, -2.813 -1.619 -0.497

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.890 -2.457 -1.558
{\rm log}_{10}(\tau_{AGN})\, 0.968 1.407 1.843

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.039 -0.738 -0.522
0.03-0.10 Gyr -0.827 -0.147 0.301
0.10-0.33 Gyr 0.093 0.375 0.677
0.33-1.07 Gyr -0.754 -0.093 0.195
1.07-3.51 Gyr -1.536 -0.582 -0.234
3.51-11.51 Gyr -2.122 -0.866 -0.459
11.51-12.79 Gyr -2.189 -0.866 -0.314