2025xdq

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Information

Transient

Name: AT2025xdq
Right ascension: 21h01m37.01s
Declination: -22d06m21.28s
Discovery Date: Sept. 9, 2025, 5:21 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.047

Host

Name: 187886
Right ascension: 21h01m36.64s
Declination: -22d06m29.04s
Redshift: 0.041559
Photometric Redshift:
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 8.28
Transient MWEBV processed 0.04
Host match processed 4.18
Host information processed 0.16
Host MWEBV processed 0.07
Global aperture construction processed 0.63
Global aperture photometry processed 3.99
Validate global photometry processed 8.67
Global host SED inference processed 709.77
Local aperture photometry processed 3.9
Validate local photometry processed 0.02
Local host SED inference processed 434.08
 

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) = 21h01m37.01s, -22d06m21.28s
semi major axis, semi minor axis (arcsec) = 2.44, 2.44
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 58.82 0.58 19.476 0.011 AB
PanSTARRS_r 115.79 0.81 18.741 0.008 AB
PanSTARRS_i 170.01 0.57 18.324 0.004 AB
PanSTARRS_z 217.22 1.91 18.058 0.010 AB
PanSTARRS_y 267.99 4.47 17.830 0.018 AB

Aperture details

RA, DEC (J2000) = 21h01m36.65s, -22d06m29.11s
semi major axis, semi minor axis (arcsec) = 19.19, 14.81
angle (degrees, anti-clockwise from east) = -158.8

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 21.66 3.49 20.561 0.175 AB
GALEX_NUV 13.54 2.92 21.071 0.234 AB
PanSTARRS_g 2998.72 3.98 15.208 0.001 AB
PanSTARRS_r 6226.44 5.48 14.414 0.001 AB
PanSTARRS_i 9182.27 3.92 13.993 0.000 AB
PanSTARRS_y 14181.56 30.84 13.521 0.002 AB
WISE_W1 8692.8 72.41 11.353 0.009 Vega
WISE_W2 4900.48 76.49 11.335 0.017 Vega
WISE_W4 2622.56 970.54 8.733 0.402 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})\, 9.229 9.365 9.485
{\rm log}_{10}({\rm SFR}) -1.763 -0.966 -0.410
{\rm log}_{10}({\rm sSFR}) -11.138 -10.345 -9.713
{\rm stellar\ age} 5.781 7.579 10.204

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.474 -0.844 -0.290
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.708 -0.411 0.298

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.479 1.101 1.434
\delta -0.353 -0.104 0.184
\tau_1/\tau_2 0.699 1.054 1.419
Q_{PAH} 0.880 2.467 4.528
U_{min} 2.499 7.711 14.899
{\rm log}_{10}(\gamma_e)\, -3.372 -2.174 -0.647

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.041 -2.215 -0.565
{\rm log}_{10}(\tau_{AGN})\, 1.038 1.521 1.938

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.941 -1.050 -0.547
0.03-0.10 Gyr -1.904 -0.990 -0.356
0.10-0.33 Gyr -2.092 -0.986 -0.429
0.33-1.09 Gyr -2.360 -1.050 -0.522
1.09-3.60 Gyr -2.094 -0.863 -0.462
3.60-11.88 Gyr -1.180 -0.570 -0.375
11.88-13.20 Gyr -1.090 -0.401 0.339

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 11.110 11.174 11.206
{\rm log}_{10}({\rm SFR}) -2.489 -1.744 -1.163
{\rm log}_{10}({\rm sSFR}) -13.663 -12.895 -12.300
{\rm stellar\ age} 10.571 12.492 12.537

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.694 -0.501 -0.361
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.362 -0.520 0.067

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.099 0.184 0.311
\delta -0.670 -0.297 0.009
\tau_1/\tau_2 0.482 0.909 1.357
Q_{PAH} 0.861 3.687 5.952
U_{min} 3.745 10.290 18.117
{\rm log}_{10}(\gamma_e)\, -1.636 -0.599 -0.151

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.266 -3.242 -2.120
{\rm log}_{10}(\tau_{AGN})\, 1.198 1.748 2.054

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.576 -1.570 -0.979
0.03-0.10 Gyr -4.620 -2.330 -1.326
0.10-0.33 Gyr -5.639 -2.723 -1.416
0.33-1.09 Gyr -5.631 -2.683 -1.226
1.09-3.60 Gyr -4.210 -2.093 -0.545
3.60-11.88 Gyr -2.089 -0.739 1.033
11.88-13.20 Gyr 2.009 2.300 2.336