2025zxx results

Information

Transient
Name:AT2025zxx
Right ascension: 21h07m03.95s
Declination:-5d53m20.34s
Discovery Date:Sept. 26, 2025, 7:31 a.m.
Classification:None
Redshift:None
MW E(B-V):0.079
Host
Name:SDSSJ210703.78-05532
Right ascension: 21h07m03.84s
Declination:-5d53m22.02s
Redshift:None
Photometric Redshift:0.058
 

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 16.82
Transient MWEBV processed 0.05
Host match processed 4.76
Host information processed 0.05
Host MWEBV processed 0.06
Global aperture construction processed 0.66
Global aperture photometry processed 6.83
Validate global photometry processed 18.38
Global host SED inference processed 1241.77
Local aperture photometry processed 6.61
Validate local photometry processed 0.03
Local host SED inference processed 481.4
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):21h07m03.95s, -5d53m20.34s
semi major axis, semi minor axis (arcsec):1.78, 1.78
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 9.31 1.71 21.478 0.199 AB
SDSS_g 25.5 1.45 20.384 0.062 AB
DES_g 27.15 0.39 20.316 0.016 AB
PanSTARRS_g 27.93 0.4 20.285 0.016 AB
SDSS_r 52.15 2.07 19.607 0.043 AB
PanSTARRS_r 55.07 0.52 19.548 0.010 AB
DES_r 59.89 0.83 19.457 0.015 AB
SDSS_i 77.72 2.71 19.174 0.038 AB
PanSTARRS_i 83.01 0.57 19.102 0.007 AB
PanSTARRS_z 105.4 1.38 18.843 0.014 AB
SDSS_z 101.81 5.83 18.881 0.062 AB
DES_z 101.43 1.77 18.885 0.019 AB
PanSTARRS_y 109.69 2.83 18.800 0.028 AB

Aperture details

RA, DEC (J2000):21h07m03.77s, -5d53m21.88s
semi major axis, semi minor axis (arcsec):11.12, 3.81
angle (degrees, anti-clockwise from east):-116.05
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 4.8 1.61 22.197 0.364 AB
GALEX_NUV 11.24 2.03 21.273 0.196 AB
SDSS_u 55.59 6.05 19.538 0.118 AB
SDSS_g 135.37 3.86 18.571 0.031 AB
DES_g 123.66 0.98 18.669 0.009 AB
PanSTARRS_g 149.49 1.42 18.463 0.010 AB
SDSS_r 297.79 5.54 17.715 0.020 AB
PanSTARRS_r 278.9 1.82 17.786 0.007 AB
DES_r 269.66 1.98 17.823 0.008 AB
SDSS_i 423.64 7.6 17.333 0.019 AB
PanSTARRS_i 436.0 2.04 17.301 0.005 AB
PanSTARRS_z 537.89 4.97 17.073 0.010 AB
SDSS_z 494.33 20.04 17.165 0.044 AB
DES_z 481.13 4.1 17.194 0.009 AB
PanSTARRS_y 579.11 10.21 16.993 0.019 AB
2MASS_J 880.21 208.84 15.644 0.258 Vega
2MASS_H 846.97 299.74 15.213 0.384 Vega
2MASS_K 536.75 306.02 15.238 0.619 Vega
WISE_W1 332.59 19.84 14.896 0.065 Vega
WISE_W2 215.27 23.58 14.729 0.119 Vega
WISE_W3 414.63 103.34 12.182 0.271 Vega
WISE_W4 1798.27 673.74 9.143 0.407 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.237 9.348 9.463
{\rm log}_{10}({\rm SFR}) -2.495 -1.690 -1.078
{\rm log}_{10}({\rm sSFR}) -11.880 -11.000 -10.439
{\rm stellar\ age} 6.984 8.173 11.738

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.597 -1.134 -0.760
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.825 -1.202 0.127

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.372 0.696 0.975
\delta -0.392 0.003 0.276
\tau_1/\tau_2 0.597 0.970 1.355
Q_{PAH} 0.600 2.322 5.296
U_{min} 3.095 8.466 15.961
{\rm log}_{10}(\gamma_e)\, -2.991 -1.874 -0.798

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.338 -0.893 -0.183
{\rm log}_{10}(\tau_{AGN})\, 1.065 1.461 1.951

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.926 -1.818 -1.233
0.03-0.10 Gyr -2.977 -1.742 -1.033
0.10-0.33 Gyr -3.120 -1.771 -1.041
0.33-1.08 Gyr -3.354 -1.760 -0.975
1.08-3.55 Gyr -3.076 -1.302 -0.636
3.55-11.69 Gyr -1.369 -0.569 -0.388
11.69-12.98 Gyr -0.925 -0.222 0.524

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.069 10.142 10.211
{\rm log}_{10}({\rm SFR}) -1.096 -0.454 0.114
{\rm log}_{10}({\rm sSFR}) -11.246 -10.598 -10.050
{\rm stellar\ age} 9.652 12.165 12.310

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.639 -1.244 -0.827
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.259 0.321 0.460

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.266 0.490 0.667
\delta -0.329 -0.040 0.213
\tau_1/\tau_2 0.386 0.823 1.322
Q_{PAH} 0.368 1.045 2.337
U_{min} 3.948 10.478 18.186
{\rm log}_{10}(\gamma_e)\, -3.168 -1.999 -1.111

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.333 -2.049 -1.604
{\rm log}_{10}(\tau_{AGN})\, 1.117 1.486 1.823

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.505 -1.740 -0.834
0.03-0.10 Gyr -1.023 -0.317 0.266
0.10-0.33 Gyr -4.471 -2.841 -0.982
0.33-1.08 Gyr -7.563 -5.336 -2.298
1.08-3.55 Gyr -5.704 -3.769 -1.779
3.55-11.69 Gyr -2.753 -1.306 0.143
11.69-12.98 Gyr 0.860 1.268 1.348