2025xkr

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Information

Transient

Name: AT2025xkr
Right ascension: 2h16m32.74s
Declination: -11d20m37.68s
Discovery Date: Aug. 29, 2025, 2:05 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.030

Host

Name: NGC0873
Right ascension: 2h16m32.35s
Declination: -11d20m54.94s
Redshift: 0.013403
Photometric Redshift:
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 19.97
Transient MWEBV processed 0.09
Host match processed 4.36
Host information processed 0.12
Host MWEBV processed 0.04
Global aperture construction processed 0.65
Global aperture photometry processed 6.3
Validate global photometry processed 17.79
Global host SED inference processed 391.86
Local aperture photometry processed 6.45
Validate local photometry processed 0.03
Local host SED inference processed 389.21
 

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) = 2h16m32.74s, -11d20m37.68s
semi major axis, semi minor axis (arcsec) = 7.31, 7.31
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 53.66 5.92 19.576 0.120 AB
GALEX_NUV 103.57 3.46 18.862 0.036 AB
SDSS_u 389.8 8.25 17.423 0.023 AB
SDSS_g 1117.98 9.44 16.279 0.009 AB
DES_g 884.69 5.69 16.533 0.007 AB
PanSTARRS_g 1142.92 3.69 16.255 0.004 AB
SDSS_r 1700.63 12.62 15.823 0.008 AB
PanSTARRS_r 1676.42 5.2 15.839 0.003 AB
DES_r 1309.95 9.68 16.107 0.008 AB
SDSS_i 2089.31 14.93 15.600 0.008 AB
PanSTARRS_i 2002.49 6.58 15.646 0.004 AB
PanSTARRS_z 2323.77 6.36 15.485 0.003 AB
SDSS_z 2369.14 29.82 15.464 0.014 AB
DES_z 2124.43 10.09 15.582 0.005 AB
PanSTARRS_y 2797.54 13.78 15.283 0.005 AB
2MASS_J 3310.78 176.91 14.205 0.058 Vega
2MASS_H 2576.58 271.11 14.005 0.114 Vega
2MASS_K 2593.96 316.09 13.527 0.132 Vega
WISE_W1 1502.05 45.96 13.259 0.033 Vega
WISE_W2 1081.52 32.47 12.976 0.033 Vega
WISE_W3 9495.67 1972.38 8.782 0.226 Vega

Aperture details

RA, DEC (J2000) = 2h16m32.25s, -11d20m56.75s
semi major axis, semi minor axis (arcsec) = 44.82, 35.23
angle (degrees, anti-clockwise from east) = -22.3

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 1645.74 32.05 15.859 0.021 AB
GALEX_NUV 2848.44 16.29 15.263 0.006 AB
SDSS_u 9360.92 43.57 13.972 0.005 AB
SDSS_g 26618.41 46.68 12.837 0.002 AB
PanSTARRS_g 26891.63 17.64 12.826 0.001 AB
SDSS_r 43145.45 64.32 12.313 0.002 AB
PanSTARRS_r 41721.71 24.93 12.349 0.001 AB
DES_r 33001.36 48.81 12.604 0.002 AB
SDSS_i 54111.62 76.7 12.067 0.002 AB
PanSTARRS_i 52236.6 31.56 12.105 0.001 AB
PanSTARRS_z 61638.97 32.85 11.925 0.001 AB
SDSS_z 64443.55 159.8 11.877 0.003 AB
PanSTARRS_y 72860.06 71.54 11.744 0.001 AB
2MASS_J 91681.87 963.85 10.599 0.011 Vega
2MASS_H 100419.68 1478.38 10.028 0.016 Vega
2MASS_K 86140.55 1723.23 9.724 0.022 Vega
WISE_W1 57532.26 287.98 9.301 0.005 Vega
WISE_W2 38273.89 214.36 9.104 0.006 Vega
WISE_W3 232775.46 13420.86 5.309 0.063 Vega
WISE_W4 440700.09 33455.19 3.170 0.082 Vega
 

Imaging data

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Spectral Energy Distribution

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Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.856 8.998 9.085
{\rm log}_{10}({\rm SFR}) -0.678 -0.359 -0.055
{\rm log}_{10}({\rm sSFR}) -9.727 -9.354 -8.958
{\rm stellar\ age} 5.179 6.739 8.110

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.693 -0.492 -0.343
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.223 -0.769 -0.299

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.266 0.375 0.562
\delta -0.786 -0.590 -0.400
\tau_1/\tau_2 0.769 1.162 1.520
Q_{PAH} 0.319 1.136 3.069
U_{min} 2.681 8.257 15.584
{\rm log}_{10}(\gamma_e)\, -3.426 -2.127 -1.230

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.744 -2.159 -1.469
{\rm log}_{10}(\tau_{AGN})\, 1.100 1.501 1.901

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.507 -1.221 -0.987
0.03-0.10 Gyr -0.555 -0.216 0.097
0.10-0.33 Gyr -1.251 -0.674 -0.351
0.33-1.10 Gyr -1.586 -1.066 -0.789
1.10-3.63 Gyr -1.522 -1.058 -0.819
3.63-12.04 Gyr -1.365 -0.968 -0.805
12.04-13.38 Gyr -1.563 -0.914 -0.359

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.007 10.267 10.437
{\rm log}_{10}({\rm SFR}) 1.272 1.502 1.751
{\rm log}_{10}({\rm sSFR}) -9.152 -8.773 -8.290
{\rm stellar\ age} 0.763 4.566 6.692

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.123 -0.015 0.071
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.418 -0.733 0.003

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.495 0.713 0.912
\delta -0.392 -0.251 -0.152
\tau_1/\tau_2 0.629 0.992 1.329
Q_{PAH} 0.896 1.529 2.738
U_{min} 2.505 7.642 15.103
{\rm log}_{10}(\gamma_e)\, -3.271 -2.280 -1.728

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.171 -1.895 -1.546
{\rm log}_{10}(\tau_{AGN})\, 1.000 1.404 1.804

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.724 0.067 0.464
0.03-0.10 Gyr 1.425 1.658 1.911
0.10-0.33 Gyr -0.217 0.790 1.318
0.33-1.10 Gyr -0.809 0.340 0.742
1.10-3.63 Gyr -1.545 0.230 0.608
3.63-12.04 Gyr -2.157 0.051 0.476
12.04-13.38 Gyr -2.131 0.016 0.665