2025actu

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Information

Transient

Name: AT2025actu
Right ascension: 22h30m16.87s
Declination: 28d13m19.94s
Discovery Date: Nov. 8, 2025, 8:28 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.041

Host

Name:
Right ascension: 22h30m16.72s
Declination: 28d13m19.75s
Redshift: None
Photometric Redshift: 0.073
 

Processing Status: blocked

Task Name Status Time taken (s) Warning Flag
Cutout download processed 18.68
Transient MWEBV processed 0.09
Host match processed 5.03
Host information processed 0.08
Host MWEBV processed 0.07
Global aperture construction processed 0.66
Global aperture photometry processed 6.72
Validate global photometry processed 18.75
Global host SED inference processed 879.97
Local aperture photometry processed 6.56
Validate local photometry processed 0.03
Local host SED inference processed 433.67
 

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) = 22h30m16.87s, 28d13m19.94s
semi major axis, semi minor axis (arcsec) = 1.45, 1.45
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 12.02 0.96 21.200 0.087 AB
DES_g 12.83 0.18 21.130 0.015 AB
PanSTARRS_g 12.98 0.33 21.116 0.027 AB
SDSS_r 16.69 1.25 20.844 0.082 AB
PanSTARRS_r 16.39 0.37 20.864 0.025 AB
DES_r 18.78 0.36 20.716 0.021 AB
SDSS_i 24.22 1.72 20.440 0.077 AB
PanSTARRS_i 20.13 0.49 20.641 0.026 AB
PanSTARRS_z 21.5 0.99 20.569 0.050 AB
SDSS_z 17.08 4.48 20.819 0.285 AB
DES_z 23.19 0.81 20.487 0.038 AB
PanSTARRS_y 19.19 2.33 20.692 0.132 AB

Aperture details

RA, DEC (J2000) = 22h30m16.72s, 28d13m19.88s
semi major axis, semi minor axis (arcsec) = 9.31, 4.21
angle (degrees, anti-clockwise from east) = -43.58

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 18.21 3.09 20.749 0.184 AB
GALEX_NUV 21.32 2.25 20.578 0.114 AB
SDSS_u 129.77 9.26 18.617 0.077 AB
SDSS_g 101.14 3.05 18.888 0.033 AB
DES_g 104.73 0.58 18.850 0.006 AB
PanSTARRS_g 100.15 1.4 18.898 0.015 AB
SDSS_r 144.78 4.35 18.498 0.033 AB
PanSTARRS_r 144.27 1.57 18.502 0.012 AB
DES_r 154.48 1.16 18.428 0.008 AB
SDSS_i 175.94 6.2 18.287 0.038 AB
PanSTARRS_i 167.86 2.07 18.338 0.013 AB
PanSTARRS_z 182.04 4.26 18.250 0.025 AB
SDSS_z 90.27 19.03 19.011 0.229 AB
DES_z 199.24 2.55 18.152 0.014 AB
PanSTARRS_y 162.54 9.96 18.373 0.067 AB
2MASS_J 391.09 158.1 16.524 0.439 Vega
2MASS_H 229.85 245.66 16.629 1.160 Vega
2MASS_K 401.38 291.56 15.553 0.789 Vega
WISE_W1 104.45 18.54 16.154 0.193 Vega
WISE_W2 89.57 20.75 15.681 0.252 Vega
WISE_W3 29.82 62.87 15.040 2.289 Vega
WISE_W4 -81.71 409.11 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})\, 8.179 8.362 8.516
{\rm log}_{10}({\rm SFR}) -1.707 -1.200 -0.450
{\rm log}_{10}({\rm sSFR}) -10.109 -9.555 -8.731
{\rm stellar\ age} 0.832 3.833 6.067

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.707 -1.131 -0.321
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.664 -1.038 0.017

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.159 0.365 0.807
\delta -0.624 -0.237 0.119
\tau_1/\tau_2 0.798 1.161 1.543
Q_{PAH} 1.242 2.918 4.982
U_{min} 2.821 7.816 15.358
{\rm log}_{10}(\gamma_e)\, -2.986 -1.826 -0.642

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.240 -0.148 0.181
{\rm log}_{10}(\tau_{AGN})\, 1.174 1.523 1.942

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.805 -1.458 -1.112
0.03-0.10 Gyr -1.793 -1.153 -0.312
0.10-0.33 Gyr -1.668 -1.009 -0.525
0.33-1.07 Gyr -2.203 -1.136 -0.779
1.07-3.52 Gyr -3.251 -1.612 -1.245
3.52-11.52 Gyr -3.748 -1.916 -1.464
11.52-12.80 Gyr -3.571 -1.959 -1.321

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.221 9.440 9.601
{\rm log}_{10}({\rm SFR}) 0.191 0.610 1.011
{\rm log}_{10}({\rm sSFR}) -9.283 -8.823 -8.319
{\rm stellar\ age} 2.965 6.555 9.992

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.791 -1.463 -1.040
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.167 0.175 0.427

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.199 0.340 0.569
\delta -0.839 -0.556 -0.290
\tau_1/\tau_2 0.453 0.940 1.446
Q_{PAH} 0.649 1.762 3.411
U_{min} 3.336 9.587 17.843
{\rm log}_{10}(\gamma_e)\, -3.438 -2.162 -1.064

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.255 -2.068 -1.460
{\rm log}_{10}(\tau_{AGN})\, 0.994 1.447 1.868

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.870 -1.603 -0.784
0.03-0.10 Gyr 0.349 0.772 1.174
0.10-0.33 Gyr -3.270 -1.657 -0.124
0.33-1.07 Gyr -4.950 -2.645 -0.814
1.07-3.52 Gyr -3.986 -1.237 -0.336
3.52-11.52 Gyr -2.490 -0.806 -0.335
11.52-12.80 Gyr -2.407 -0.492 0.583