2025knu

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Information

Transient

Name: AT2025knu
Right ascension: 9h33m50.87s
Declination: 20d59m46.68s
Discovery Date: May 15, 2025, 9:44 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.026

Host

Name: 2025knu
Right ascension: 9h33m51.06s
Declination: 20d59m49.69s
Redshift: 0.088881
Photometric Redshift: 0.096
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 17.35
Transient MWEBV processed 0.05
Host match processed 1.85
Host information processed 0.09
Host MWEBV processed 0.09
Global aperture construction processed 0.65
Global aperture photometry processed 7.79
Validate global photometry processed 20.0
Global host SED inference processed 434.21
Local aperture photometry processed 7.75
Validate local photometry processed 0.03
Local host SED inference processed 478.97
 

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) = 9h33m50.87s, 20d59m46.68s
semi major axis, semi minor axis (arcsec) = 1.21, 1.21
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 26.36 0.25 20.348 0.010 AB
PanSTARRS_r 54.07 0.34 19.568 0.007 AB
DES_r 62.58 0.59 19.409 0.010 AB
PanSTARRS_i 74.92 0.39 19.213 0.006 AB
PanSTARRS_z 100.61 1.0 18.893 0.011 AB
DES_z 109.22 1.67 18.804 0.017 AB
PanSTARRS_y 116.83 1.98 18.731 0.018 AB

Aperture details

RA, DEC (J2000) = 9h33m51.05s, 20d59m49.90s
semi major axis, semi minor axis (arcsec) = 10.45, 5.81
angle (degrees, anti-clockwise from east) = -152.12

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 3.35 0.58 22.586 0.187 AB
GALEX_NUV 5.06 0.65 22.139 0.139 AB
SDSS_u 120.29 5.58 18.699 0.050 AB
SDSS_g 623.94 6.78 16.912 0.012 AB
DES_g 698.94 1.33 16.789 0.002 AB
PanSTARRS_g 698.62 1.98 16.789 0.003 AB
SDSS_r 1518.04 10.65 15.947 0.008 AB
PanSTARRS_r 1503.43 2.13 15.957 0.002 AB
DES_r 1705.8 3.14 15.820 0.002 AB
SDSS_i 2275.19 13.43 15.507 0.006 AB
PanSTARRS_i 2187.58 2.46 15.550 0.001 AB
PanSTARRS_z 2977.81 6.36 15.215 0.002 AB
SDSS_z 3133.04 25.06 15.160 0.009 AB
DES_z 3184.84 9.11 15.142 0.003 AB
PanSTARRS_y 3532.33 12.63 15.030 0.004 AB
2MASS_J 4898.62 170.78 13.780 0.038 Vega
2MASS_H 5492.44 263.43 13.183 0.052 Vega
2MASS_K 5607.55 276.07 12.690 0.053 Vega
WISE_W2 1342.86 32.77 12.741 0.026 Vega
WISE_W3 413.7 93.41 12.184 0.245 Vega
WISE_W4 -603.34 441.45 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})\, 9.552 9.650 9.744
{\rm log}_{10}({\rm SFR}) -2.270 -1.421 -0.680
{\rm log}_{10}({\rm sSFR}) -11.933 -11.038 -10.249
{\rm stellar\ age} 5.688 7.294 9.752

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.988 -0.422 -0.069
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.623 -0.696 0.195

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.175 0.527 1.011
\delta -0.465 -0.093 0.237
\tau_1/\tau_2 0.665 0.978 1.322
Q_{PAH} 1.291 3.566 5.913
U_{min} 3.061 8.301 15.224
{\rm log}_{10}(\gamma_e)\, -2.971 -1.685 -0.503

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.808 -0.612 -0.157
{\rm log}_{10}(\tau_{AGN})\, 1.157 1.624 2.012

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.582 -1.565 -0.841
0.03-0.10 Gyr -2.494 -1.483 -0.679
0.10-0.33 Gyr -2.339 -1.284 -0.486
0.33-1.06 Gyr -2.270 -0.999 -0.250
1.06-3.47 Gyr -1.845 -0.506 -0.134
3.47-11.33 Gyr -0.791 -0.254 -0.081
11.33-12.59 Gyr -0.833 -0.153 0.637

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 11.178 11.250 11.288
{\rm log}_{10}({\rm SFR}) -1.870 -1.354 -0.970
{\rm log}_{10}({\rm sSFR}) -13.129 -12.610 -12.172
{\rm stellar\ age} 8.260 11.624 11.952

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.461 -0.339 -0.232
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.532 -0.715 0.089

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.115 0.189 0.296
\delta -0.477 -0.083 0.231
\tau_1/\tau_2 0.604 0.993 1.422
Q_{PAH} 0.866 2.417 4.436
U_{min} 2.846 8.396 16.218
{\rm log}_{10}(\gamma_e)\, -2.585 -1.438 -0.685

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.639 -3.958 -3.006
{\rm log}_{10}(\tau_{AGN})\, 1.076 1.598 1.981

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.314 -1.467 -1.057
0.03-0.10 Gyr -2.271 -1.405 -0.892
0.10-0.33 Gyr -3.272 -1.698 -0.989
0.33-1.06 Gyr -3.969 -1.982 -1.057
1.06-3.47 Gyr -3.016 -1.439 -0.337
3.47-11.33 Gyr -1.390 0.403 1.416
11.33-12.59 Gyr 1.610 2.377 2.433