2025lyb

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Information

Transient

Name: AT2025lyb
Right ascension: 9h54m11.35s
Declination: -18d42m26.64s
Discovery Date: May 25, 2025, 6:13 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.043

Host

Name: 2025lyb
Right ascension: 9h54m11.23s
Declination: -18d42m23.33s
Redshift: None
Photometric Redshift: 0.087
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 5.01
Transient MWEBV processed 0.06
Host match processed 1.86
Host information processed 0.09
Host MWEBV processed 0.05
Global aperture construction processed 0.67
Global aperture photometry processed 5.01
Validate global photometry processed 13.52
Global host SED inference processed 396.77
Local aperture photometry processed 4.89
Validate local photometry processed 0.02
Local host SED inference processed 478.29
 

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) = 9h54m11.35s, -18d42m26.64s
semi major axis, semi minor axis (arcsec) = 1.23, 1.23
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_r 15.03 0.51 20.958 0.037 AB
PanSTARRS_i 19.61 0.67 20.669 0.037 AB
PanSTARRS_z 23.58 0.78 20.468 0.036 AB
DES_z 27.68 2.1 20.295 0.082 AB
PanSTARRS_y 24.4 3.36 20.432 0.149 AB

Aperture details

RA, DEC (J2000) = 9h54m11.24s, -18d42m23.16s
semi major axis, semi minor axis (arcsec) = 7.41, 5.94
angle (degrees, anti-clockwise from east) = -140.45

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 21.52 3.22 20.568 0.163 AB
GALEX_NUV 36.81 2.6 19.985 0.077 AB
PanSTARRS_g 301.72 2.18 17.701 0.008 AB
PanSTARRS_r 505.91 2.76 17.140 0.006 AB
PanSTARRS_i 700.7 3.59 16.786 0.006 AB
PanSTARRS_z 809.32 4.19 16.630 0.006 AB
DES_z 868.76 11.75 16.553 0.015 AB
PanSTARRS_y 872.13 17.93 16.549 0.022 AB
2MASS_J 1004.92 168.26 15.500 0.182 Vega
2MASS_H 1518.26 222.47 14.579 0.159 Vega
2MASS_K 1887.34 336.17 13.873 0.193 Vega
WISE_W1 615.72 17.14 14.228 0.030 Vega
WISE_W2 437.49 21.59 13.959 0.054 Vega
WISE_W3 1588.41 101.11 10.724 0.069 Vega
WISE_W4 2699.19 668.55 8.702 0.269 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})\, 8.563 8.857 9.022
{\rm log}_{10}({\rm SFR}) -1.782 -1.016 0.010
{\rm log}_{10}({\rm sSFR}) -10.709 -9.931 -8.566
{\rm stellar\ age} 1.555 6.154 7.917

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.435 -0.670 -0.072
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.421 -0.715 -0.019

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.308 0.783 1.370
\delta -0.387 -0.069 0.229
\tau_1/\tau_2 0.640 1.039 1.434
Q_{PAH} 1.118 2.932 5.193
U_{min} 3.283 8.849 16.298
{\rm log}_{10}(\gamma_e)\, -2.875 -1.795 -0.678

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.282 -0.505 0.135
{\rm log}_{10}(\tau_{AGN})\, 1.113 1.595 1.962

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.511 -1.399 -0.773
0.03-0.10 Gyr -1.968 -1.006 0.158
0.10-0.33 Gyr -2.509 -1.335 -0.531
0.33-1.07 Gyr -3.195 -1.412 -0.736
1.07-3.48 Gyr -3.291 -1.256 -0.846
3.48-11.35 Gyr -3.151 -1.153 -0.823
11.35-12.61 Gyr -3.191 -1.164 -0.458

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.349 10.411 10.488
{\rm log}_{10}({\rm SFR}) 0.014 0.291 0.603
{\rm log}_{10}({\rm sSFR}) -10.410 -10.127 -9.819
{\rm stellar\ age} 6.538 7.372 8.997

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.985 -0.660 -0.443
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.752 -0.024 0.333

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.162 0.292 0.497
\delta -0.467 -0.097 0.159
\tau_1/\tau_2 0.761 1.109 1.481
Q_{PAH} 0.491 1.436 3.434
U_{min} 2.612 7.611 14.698
{\rm log}_{10}(\gamma_e)\, -2.927 -1.843 -1.137

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.926 -1.862 -1.383
{\rm log}_{10}(\tau_{AGN})\, 1.037 1.450 1.814

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.404 -0.028 0.169
0.03-0.10 Gyr 0.035 0.389 0.739
0.10-0.33 Gyr -0.067 0.303 0.600
0.33-1.07 Gyr -0.453 0.070 0.342
1.07-3.48 Gyr -0.428 0.193 0.476
3.48-11.35 Gyr 0.329 0.553 0.682
11.35-12.61 Gyr 0.213 0.716 1.278