2025sdy

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Information

Transient

Name: AT2025sdy
Right ascension: 22h55m55.10s
Declination: 34d09m04.17s
Discovery Date: July 25, 2025, 10:32 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.094

Host

Name:
Right ascension: 22h55m55.05s
Declination: 34d09m04.34s
Redshift: 0.053635
Photometric Redshift: 0.073
 

Processing Status: blocked

Task Name Status Time taken (s) Warning Flag
Cutout download processed 33.34
Transient MWEBV processed 0.11
Host match processed 5.61
Host information processed 0.14
Host MWEBV processed 0.05
Global aperture construction processed 0.69
Global aperture photometry processed 6.19
Validate global photometry processed 17.61
Global host SED inference processed 593.5
Local aperture photometry processed 6.89
Validate local photometry processed 0.03
Local host SED inference processed 523.95
 

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) = 22h55m55.10s, 34d09m04.17s
semi major axis, semi minor axis (arcsec) = 1.92, 1.92
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 37.13 2.11 19.976 0.062 AB
SDSS_g 256.96 4.18 17.875 0.018 AB
DES_g 283.1 1.55 17.770 0.006 AB
PanSTARRS_g 272.31 0.58 17.812 0.002 AB
SDSS_r 665.5 6.74 16.842 0.011 AB
PanSTARRS_r 676.73 0.77 16.824 0.001 AB
DES_r 777.27 4.28 16.674 0.006 AB
SDSS_i 1103.61 8.71 16.293 0.009 AB
PanSTARRS_i 1100.31 0.76 16.296 0.001 AB
PanSTARRS_z 1408.74 1.9 16.028 0.001 AB
SDSS_z 1548.52 11.33 15.925 0.008 AB
DES_z 1607.08 10.13 15.885 0.007 AB
PanSTARRS_y 1640.75 2.98 15.862 0.002 AB

Aperture details

RA, DEC (J2000) = 22h55m55.00s, 34d09m04.49s
semi major axis, semi minor axis (arcsec) = 11.0, 6.87
angle (degrees, anti-clockwise from east) = -75.13

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 0.96 3.18 23.946 3.597 AB
GALEX_NUV 4.64 2.23 22.233 0.523 AB
SDSS_u 155.59 7.36 18.420 0.051 AB
SDSS_g 784.1 7.52 16.664 0.010 AB
DES_g 847.43 2.79 16.580 0.004 AB
PanSTARRS_g 845.91 2.11 16.582 0.003 AB
SDSS_r 1950.89 12.01 15.674 0.007 AB
PanSTARRS_r 2003.73 2.47 15.645 0.001 AB
DES_r 2186.99 7.35 15.550 0.004 AB
SDSS_i 3104.19 15.5 15.170 0.005 AB
PanSTARRS_i 3127.61 2.81 15.162 0.001 AB
PanSTARRS_z 4028.2 7.62 14.887 0.002 AB
SDSS_z 4301.99 28.08 14.816 0.007 AB
DES_z 4425.25 17.05 14.785 0.004 AB
PanSTARRS_y 5102.78 12.95 14.630 0.003 AB
2MASS_J 6536.83 190.96 13.467 0.032 Vega
2MASS_H 8784.61 253.25 12.673 0.031 Vega
2MASS_K 7924.6 381.58 12.315 0.052 Vega
WISE_W1 3211.23 33.17 12.434 0.011 Vega
WISE_W2 1885.6 35.49 12.372 0.020 Vega
WISE_W3 684.18 88.16 11.638 0.140 Vega
WISE_W4 465.72 486.49 10.610 1.134 Vega
 

Imaging data

Click the image to load the interactive plot.


 

Spectral Energy Distribution

 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.282 10.379 10.490
{\rm log}_{10}({\rm SFR}) -0.913 -0.211 0.228
{\rm log}_{10}({\rm sSFR}) -11.344 -10.573 -10.116
{\rm stellar\ age} 6.497 7.719 10.369

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.590 -1.111 -0.761
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.826 -0.799 0.284

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.695 0.881 1.099
\delta -0.871 -0.742 -0.604
\tau_1/\tau_2 0.633 0.966 1.331
Q_{PAH} 0.540 1.800 4.577
U_{min} 2.727 7.756 14.987
{\rm log}_{10}(\gamma_e)\, -3.301 -2.056 -0.764

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.935 -2.170 -0.546
{\rm log}_{10}(\tau_{AGN})\, 0.931 1.499 2.024

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.685 -0.071 0.218
0.03-0.10 Gyr -1.533 -0.361 0.267
0.10-0.33 Gyr -1.811 -0.380 0.247
0.33-1.08 Gyr -1.827 -0.301 0.278
1.08-3.57 Gyr -1.487 0.057 0.493
3.57-11.74 Gyr -0.033 0.478 0.655
11.74-13.04 Gyr -0.017 0.621 1.405

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.899 10.989 11.028
{\rm log}_{10}({\rm SFR}) -3.707 -1.632 -0.678
{\rm log}_{10}({\rm sSFR}) -14.640 -12.607 -11.684
{\rm stellar\ age} 9.026 12.313 12.386

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.871 -0.629 -0.470
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.417 -0.236 0.331

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.228 0.360 0.532
\delta -0.701 -0.449 -0.237
\tau_1/\tau_2 0.409 0.838 1.282
Q_{PAH} 0.299 0.858 1.663
U_{min} 3.343 9.214 17.153
{\rm log}_{10}(\gamma_e)\, -3.252 -2.238 -1.471

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.545 -3.767 -2.796
{\rm log}_{10}(\tau_{AGN})\, 1.055 1.558 1.929

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -4.874 -1.871 -0.822
0.03-0.10 Gyr -4.994 -1.937 -0.647
0.10-0.33 Gyr -6.368 -2.943 -1.089
0.33-1.08 Gyr -6.977 -3.483 -1.381
1.08-3.57 Gyr -4.743 -2.480 -0.765
3.57-11.74 Gyr -2.119 -0.566 1.050
11.74-13.04 Gyr 1.498 2.119 2.168