2025agby

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Information

Transient

Name: AT2025agby
Right ascension: 2h25m43.25s
Declination: 37d14m18.96s
Discovery Date: Dec. 8, 2025, 8:05 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.040

Host

Name: UGC01882
Right ascension: 2h25m45.19s
Declination: 37d13m54.08s
Redshift: 0.037163
Photometric Redshift:
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 4.41
Transient MWEBV processed 0.13
Host match processed 4.8
Host information processed 0.13
Host MWEBV processed 0.14
Global aperture construction processed 0.72
Global aperture photometry processed 4.07
Validate global photometry processed 8.63
Global host SED inference processed 453.73
Local aperture photometry processed 3.9
Validate local photometry processed 0.02
Local host SED inference processed 591.19
 

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) = 2h25m43.25s, 37d14m18.96s
semi major axis, semi minor axis (arcsec) = 2.71, 2.71
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 2.46 0.64 22.924 0.283 AB
PanSTARRS_r 4.26 1.01 22.327 0.259 AB
PanSTARRS_i 0.41 1.05 24.859 2.753 AB
PanSTARRS_z 8.62 2.35 21.561 0.296 AB
PanSTARRS_y -0.61 4.73 AB

Aperture details

RA, DEC (J2000) = 2h25m45.23s, 37d13m54.44s
semi major axis, semi minor axis (arcsec) = 38.29, 29.0
angle (degrees, anti-clockwise from east) = -89.51

Warning: possible contaminating objects in the global aperture
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 5575.25 8.86 14.534 0.002 AB
PanSTARRS_r 9939.09 13.25 13.907 0.001 AB
PanSTARRS_i 13483.47 13.06 13.575 0.001 AB
PanSTARRS_z 15796.9 29.63 13.404 0.002 AB
PanSTARRS_y 18476.16 60.25 13.233 0.004 AB
WISE_W1 12285.4 167.94 10.978 0.015 Vega
WISE_W2 6980.29 163.82 10.951 0.025 Vega
WISE_W3 19786.54 503.24 7.985 0.028 Vega
WISE_W4 17758.85 2079.62 6.656 0.127 Vega
 

Imaging data

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Spectral Energy Distribution

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Warning: possible contaminating objects in the global aperture

Click the image to load the interactive plot.


 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 7.297 7.826 8.189
{\rm log}_{10}({\rm SFR}) -1.816 -1.323 -0.871
{\rm log}_{10}({\rm sSFR}) -9.841 -9.080 -8.203
{\rm stellar\ age} 1.157 6.061 8.105

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.567 -0.864 -0.195
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.543 -0.580 0.074

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 1.330 1.897 2.563
\delta -0.026 0.144 0.316
\tau_1/\tau_2 0.542 0.953 1.364
Q_{PAH} 0.577 1.906 4.181
U_{min} 2.677 8.073 15.454
{\rm log}_{10}(\gamma_e)\, -2.970 -1.817 -0.975

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.908 -1.731 -0.324
{\rm log}_{10}(\tau_{AGN})\, 0.995 1.441 1.862

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.772 -1.076 -0.623
0.03-0.10 Gyr -2.780 -1.742 -1.044
0.10-0.33 Gyr -4.088 -2.292 -1.613
0.33-1.09 Gyr -4.831 -2.514 -1.876
1.09-3.61 Gyr -4.612 -2.433 -1.852
3.61-11.93 Gyr -4.553 -2.315 -1.762
11.93-13.26 Gyr -4.663 -2.336 -1.424

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.795 10.949 11.055
{\rm log}_{10}({\rm SFR}) -0.998 0.190 0.760
{\rm log}_{10}({\rm sSFR}) -11.890 -10.756 -10.159
{\rm stellar\ age} 4.904 7.175 8.518

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.840 -0.616 -0.420
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.725 -0.991 0.126

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.226 0.414 0.582
\delta -0.714 -0.285 0.146
\tau_1/\tau_2 0.397 0.776 1.202
Q_{PAH} 0.854 2.008 5.273
U_{min} 2.485 7.171 14.756
{\rm log}_{10}(\gamma_e)\, -3.574 -2.281 -1.183

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.331 -3.466 -2.482
{\rm log}_{10}(\tau_{AGN})\, 1.056 1.566 1.942

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.880 0.365 0.788
0.03-0.10 Gyr -2.361 -0.019 0.779
0.10-0.33 Gyr -2.448 0.094 0.868
0.33-1.09 Gyr -1.692 0.329 0.889
1.09-3.61 Gyr 0.355 1.003 1.374
3.61-11.93 Gyr 0.447 1.024 1.257
11.93-13.26 Gyr -0.080 0.983 1.599