2025qnu

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Information

Transient

Name: AT2025qnu
Right ascension: 0h45m19.82s
Declination: -3d41m34.49s
Discovery Date: July 4, 2025, 10:40 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.032

Host

Name: 2662
Right ascension: 0h45m19.34s
Declination: -3d41m35.96s
Redshift: 0.068397
Photometric Redshift: 0.067
 

Processing Status

Cutout download
 Cutout download
processed
 status
Transient information
Transient information
processed
 status
Transient MWEBV
Transient MWEBV
processed
 status
Host match
 Host match
processed
 status
Host information
Host information
processed
 status
Local aperture photometry
 Local aperture photometry
processed
 status
Validate local photometry
 Validate local photometry
processed
 status
Local host SED inference
Local host SED inference
processed
 status
Host MWEBV
Host MWEBV
processed
 status
Global host SED inference
Global host SED inference
processed
 status
Validate global photometry
Validate global photometr...
processed
 status
Global aperture construction
 Global aperture construct...
processed
 status
Global aperture photometry
 Global aperture photometr...
processed
 status
Task Name Status Time taken (s) Warning Flag
Host match processed 4.86
Cutout download processed 41.21
Global aperture construction processed 0.69
Local aperture photometry processed 7.28
Global aperture photometry processed 6.64
Validate local photometry processed 0.03
Validate global photometry processed 17.96
Host information processed 0.14
Global host SED inference processed 420.81
Local host SED inference processed 478.61
Transient information processed 0.0
Transient MWEBV processed 0.05
Host MWEBV processed 0.04
Processing status completed N/A N/A
 

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) = 0h45m19.82s, -3d41m34.49s
semi major axis, semi minor axis (arcsec) = 1.53, 1.53
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_g 67.46 2.22 19.327 0.036 AB
DES_g 73.11 0.26 19.240 0.004 AB
PanSTARRS_g 67.62 0.42 19.325 0.007 AB
SDSS_r 134.82 3.13 18.576 0.025 AB
PanSTARRS_r 119.87 0.38 18.703 0.003 AB
DES_r 150.43 0.46 18.457 0.003 AB
SDSS_i 195.26 3.85 18.173 0.021 AB
PanSTARRS_i 168.66 0.62 18.332 0.004 AB
PanSTARRS_z 198.31 1.12 18.157 0.006 AB
SDSS_z 246.97 6.32 17.918 0.028 AB
DES_z 251.87 1.63 17.897 0.007 AB
PanSTARRS_y 243.62 2.31 17.933 0.010 AB

Aperture details

RA, DEC (J2000) = 0h45m19.53s, -3d41m34.62s
semi major axis, semi minor axis (arcsec) = 26.69, 16.93
angle (degrees, anti-clockwise from east) = -103.93

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 286.81 4.35 17.756 0.016 AB
GALEX_NUV 405.68 3.11 17.380 0.008 AB
SDSS_u 590.24 17.04 16.972 0.031 AB
SDSS_g 2235.84 15.26 15.526 0.007 AB
DES_g 2363.34 1.68 15.466 0.001 AB
PanSTARRS_g 2257.23 5.45 15.516 0.003 AB
SDSS_r 3544.23 19.43 15.026 0.006 AB
PanSTARRS_r 3003.84 4.72 15.206 0.002 AB
DES_r 3791.17 2.64 14.953 0.001 AB
SDSS_i 4769.74 25.37 14.704 0.006 AB
PanSTARRS_i 4592.12 8.25 14.745 0.002 AB
PanSTARRS_z 4928.85 15.03 14.668 0.003 AB
PanSTARRS_y 5650.43 31.59 14.520 0.006 AB
2MASS_J 7069.45 424.62 13.382 0.065 Vega
2MASS_H 8262.62 647.94 12.740 0.085 Vega
WISE_W2 2637.92 77.98 12.008 0.032 Vega
WISE_W3 10930.26 397.76 8.629 0.040 Vega
WISE_W4 10874.91 1605.31 7.189 0.160 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})\, 9.411 9.564 9.683
{\rm log}_{10}({\rm SFR}) -1.027 -0.517 -0.020
{\rm log}_{10}({\rm sSFR}) -10.616 -10.081 -9.507
{\rm stellar\ age} 4.025 6.154 7.685

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.867 -0.397 -0.062
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.120 0.122 0.346

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.278 0.575 0.952
\delta -0.825 -0.454 0.039
\tau_1/\tau_2 0.716 1.061 1.420
Q_{PAH} 0.975 2.808 5.333
U_{min} 3.066 8.110 15.159
{\rm log}_{10}(\gamma_e)\, -2.954 -1.639 -0.437

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.831 -1.876 -0.715
{\rm log}_{10}(\tau_{AGN})\, 1.055 1.506 1.951

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.893 -0.558 -0.274
0.03-0.10 Gyr -1.275 -0.522 0.068
0.10-0.33 Gyr -1.237 -0.484 0.052
0.33-1.08 Gyr -0.944 -0.357 0.034
1.08-3.53 Gyr -0.761 -0.324 -0.075
3.53-11.56 Gyr -0.880 -0.424 -0.175
11.56-12.85 Gyr -1.085 -0.408 0.132

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.887 10.966 11.034
{\rm log}_{10}({\rm SFR}) 0.582 0.746 0.964
{\rm log}_{10}({\rm sSFR}) -10.402 -10.208 -10.011
{\rm stellar\ age} 6.234 7.442 8.946

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.601 -0.454 -0.335
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.728 -1.579 -1.352

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.086 0.171 0.353
\delta -0.376 0.093 0.326
\tau_1/\tau_2 0.626 1.023 1.428
Q_{PAH} 1.106 2.092 3.258
U_{min} 2.191 6.464 13.376
{\rm log}_{10}(\gamma_e)\, -3.157 -2.256 -1.627

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.391 -1.533 -1.181
{\rm log}_{10}(\tau_{AGN})\, 1.383 1.754 1.981

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.725 0.846 0.985
0.03-0.10 Gyr 0.406 0.698 0.998
0.10-0.33 Gyr 0.302 0.615 0.873
0.33-1.08 Gyr 0.296 0.671 1.032
1.08-3.53 Gyr 0.341 0.830 1.119
3.53-11.56 Gyr 0.846 1.077 1.208
11.56-12.85 Gyr 0.797 1.250 1.759