2025ddb

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Information

Transient

Name: AT2025ddb
Right ascension: 11h56m09.46s
Declination: 60d31m26.90s
Discovery Date: March 2, 2025, 8:37 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.017

Host

Name: 2025ddb
Right ascension: 11h56m08.72s
Declination: 60d31m08.35s
Redshift: None
Photometric Redshift: 0.053
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 2.77
Cutout download processed 13.78
Global aperture construction processed 0.7
Local aperture photometry processed 4.53
Global aperture photometry processed 4.68
Validate local photometry processed 0.02
Validate global photometry processed 14.22
Host information processed 0.08
Global host SED inference processed 597.75
Local host SED inference processed 646.02
Transient information processed 0.0
Transient MWEBV processed 0.13
Host MWEBV processed 0.09
Log transient processing status processed None
 

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) = 11h56m09.46s, 60d31m26.90s
semi major axis, semi minor axis (arcsec) = 1.94, 1.94
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 90.57 2.95 19.007 0.035 AB
SDSS_g 205.18 3.87 18.120 0.020 AB
PanSTARRS_g 213.98 0.65 18.074 0.003 AB
SDSS_r 327.67 5.02 17.611 0.017 AB
PanSTARRS_r 352.82 0.9 17.531 0.003 AB
SDSS_i 436.72 5.98 17.299 0.015 AB
PanSTARRS_i 439.67 0.8 17.292 0.002 AB
PanSTARRS_z 541.6 1.41 17.066 0.003 AB
SDSS_z 533.79 8.36 17.082 0.017 AB
PanSTARRS_y 659.12 3.76 16.853 0.006 AB

Aperture details

RA, DEC (J2000) = 11h56m08.62s, 60d31m08.13s
semi major axis, semi minor axis (arcsec) = 15.25, 9.97
angle (degrees, anti-clockwise from east) = -65.4

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 400.08 23.05 17.395 0.063 AB
GALEX_NUV 718.41 4.03 16.759 0.006 AB
SDSS_u 1042.98 13.53 16.354 0.014 AB
SDSS_g 2781.09 15.21 15.289 0.006 AB
PanSTARRS_g 2827.23 3.58 15.272 0.001 AB
SDSS_r 4306.13 20.11 14.815 0.005 AB
PanSTARRS_r 4459.45 5.08 14.777 0.001 AB
SDSS_i 5536.87 24.65 14.542 0.005 AB
PanSTARRS_z 6463.18 8.43 14.374 0.001 AB
2MASS_J 11533.92 316.31 12.850 0.030 Vega
2MASS_H 14712.77 482.9 12.113 0.036 Vega
2MASS_K 13620.41 556.79 11.727 0.044 Vega
WISE_W1 11345.43 86.47 11.064 0.008 Vega
WISE_W2 8157.63 81.47 10.782 0.011 Vega
WISE_W3 51612.79 2306.71 6.944 0.049 Vega
WISE_W4 89533.77 7336.97 4.900 0.089 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})\, 9.483 9.762 9.937
{\rm log}_{10}({\rm SFR}) -0.124 0.587 1.190
{\rm log}_{10}({\rm sSFR}) -9.958 -9.167 -8.339
{\rm stellar\ age} 1.657 6.460 8.919

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.510 -0.532 -0.123
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.262 0.209 0.412

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.239 1.013 1.875
\delta -0.387 0.054 0.257
\tau_1/\tau_2 0.605 1.069 1.489
Q_{PAH} 0.680 2.199 4.501
U_{min} 3.144 9.126 17.285
{\rm log}_{10}(\gamma_e)\, -3.568 -2.567 -1.216

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.472 -2.939 -0.279
{\rm log}_{10}(\tau_{AGN})\, 0.934 1.417 1.933

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.142 -0.329 0.285
0.03-0.10 Gyr -0.080 0.718 1.348
0.10-0.33 Gyr -2.076 -0.363 0.548
0.33-1.08 Gyr -3.485 -0.858 -0.115
1.08-3.57 Gyr -3.190 -0.632 -0.025
3.57-11.74 Gyr -2.600 -0.398 -0.002
11.74-13.05 Gyr -2.789 -0.249 0.645

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.482 10.685 10.853
{\rm log}_{10}({\rm SFR}) 1.617 1.857 2.120
{\rm log}_{10}({\rm sSFR}) -9.170 -8.831 -8.449
{\rm stellar\ age} 0.666 3.568 6.044

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.554 -0.214 -0.002
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.917 -1.505 0.192

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 1.120 1.353 1.566
\delta 0.309 0.362 0.389
\tau_1/\tau_2 0.472 0.814 1.113
Q_{PAH} 0.568 0.942 1.394
U_{min} 2.774 7.630 14.454
{\rm log}_{10}(\gamma_e)\, -3.576 -2.880 -2.123

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.503 -2.005 -1.770
{\rm log}_{10}(\tau_{AGN})\, 0.869 1.167 1.569

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.464 1.375 1.676
0.03-0.10 Gyr 1.642 1.973 2.271
0.10-0.33 Gyr 1.033 1.544 1.920
0.33-1.08 Gyr 0.168 0.951 1.296
1.08-3.57 Gyr -0.816 0.713 1.079
3.57-11.74 Gyr -1.943 0.270 0.828
11.74-13.05 Gyr -2.170 0.246 1.049