2025ywy

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Information

Transient

Name: AT2025ywy
Right ascension: 2h15m47.06s
Declination: 15d23m55.19s
Discovery Date: Sept. 22, 2025, 1:54 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.087

Host

Name: UGC01742
Right ascension: 2h15m45.91s
Declination: 15d23m42.14s
Redshift: None
Photometric Redshift: 0.022
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 15.43
Transient MWEBV processed 0.07
Host match processed 4.8
Host information processed 0.11
Host MWEBV processed 0.05
Global aperture construction processed 0.62
Global aperture photometry processed 4.47
Validate global photometry processed 10.94
Global host SED inference processed 402.33
Local aperture photometry processed 4.74
Validate local photometry processed 0.02
Local host SED inference processed 450.46
 

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) = 2h15m47.06s, 15d23m55.19s
semi major axis, semi minor axis (arcsec) = 4.47, 4.47
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 5.07 1.43 22.138 0.307 AB
SDSS_u 21.41 4.04 20.573 0.205 AB
SDSS_g 40.03 2.58 19.894 0.070 AB
PanSTARRS_g 47.78 1.23 19.702 0.028 AB
SDSS_r 59.13 3.32 19.470 0.061 AB
PanSTARRS_r 78.94 1.54 19.157 0.021 AB
SDSS_i 68.05 4.87 19.318 0.078 AB
PanSTARRS_i 87.6 1.37 19.044 0.017 AB
PanSTARRS_z 112.41 3.18 18.773 0.031 AB
SDSS_z 75.22 10.86 19.209 0.157 AB
PanSTARRS_y 148.8 6.93 18.469 0.051 AB
2MASS_J 118.26 120.16 17.823 1.103 Vega
2MASS_H 128.91 150.94 17.257 1.271 Vega
2MASS_K -28.4 231.46 Vega

Aperture details

RA, DEC (J2000) = 2h15m45.87s, 15d23m43.81s
semi major axis, semi minor axis (arcsec) = 28.92, 26.75
angle (degrees, anti-clockwise from east) = -39.25

Warning: possible contaminating objects in the global aperture
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 313.63 10.35 17.659 0.036 AB
GALEX_NUV 409.91 7.02 17.368 0.019 AB
PanSTARRS_g 3166.85 7.56 15.148 0.003 AB
PanSTARRS_r 5028.23 9.64 14.646 0.002 AB
PanSTARRS_i 5979.7 8.67 14.458 0.002 AB
PanSTARRS_z 7058.57 19.4 14.278 0.003 AB
PanSTARRS_y 8646.52 41.85 14.058 0.005 AB
2MASS_J 8271.01 751.66 13.211 0.099 Vega
2MASS_H 9309.59 943.7 12.610 0.110 Vega
2MASS_K 8281.74 1447.66 12.267 0.190 Vega
WISE_W1 4188.26 120.96 12.146 0.031 Vega
WISE_W2 2486.15 82.38 12.072 0.036 Vega
WISE_W3 9307.63 302.16 8.804 0.035 Vega
WISE_W4 10552.72 1404.88 7.222 0.145 Vega
 

Imaging data

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Spectral Energy Distribution

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Warning: possible contaminating objects in the global aperture

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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})\, 8.051 8.271 8.423
{\rm log}_{10}({\rm SFR}) -1.710 -1.208 -0.740
{\rm log}_{10}({\rm sSFR}) -10.092 -9.488 -8.880
{\rm stellar\ age} 4.207 6.785 8.259

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.967 -0.345 0.000
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.257 -0.152 0.063

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.323 0.755 1.088
\delta -0.225 0.118 0.262
\tau_1/\tau_2 0.679 1.028 1.376
Q_{PAH} 0.403 1.760 4.121
U_{min} 2.792 7.568 14.242
{\rm log}_{10}(\gamma_e)\, -3.473 -2.591 -1.452

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.786 -1.614 -0.379
{\rm log}_{10}(\tau_{AGN})\, 0.940 1.426 1.902

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.459 -1.136 -0.803
0.03-0.10 Gyr -1.977 -1.279 -0.701
0.10-0.33 Gyr -2.471 -1.718 -1.228
0.33-1.10 Gyr -2.575 -1.878 -1.494
1.10-3.65 Gyr -2.523 -1.822 -1.519
3.65-12.12 Gyr -2.384 -1.690 -1.447
12.12-13.46 Gyr -2.603 -1.718 -1.145

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.043 10.123 10.217
{\rm log}_{10}({\rm SFR}) -0.118 0.067 0.255
{\rm log}_{10}({\rm sSFR}) -10.287 -10.060 -9.841
{\rm stellar\ age} 7.304 8.253 10.626

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.831 -0.676 -0.549
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.218 -0.116 -0.012

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.086 0.141 0.237
\delta -0.790 -0.406 -0.040
\tau_1/\tau_2 0.761 1.136 1.527
Q_{PAH} 0.279 0.719 1.351
U_{min} 3.196 8.198 14.542
{\rm log}_{10}(\gamma_e)\, -2.804 -2.178 -1.706

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.541 -3.810 -2.982
{\rm log}_{10}(\tau_{AGN})\, 1.051 1.596 1.968

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.107 0.002 0.101
0.03-0.10 Gyr -0.159 0.098 0.342
0.10-0.33 Gyr -0.674 -0.171 0.135
0.33-1.10 Gyr -1.051 -0.397 -0.060
1.10-3.65 Gyr -1.051 -0.322 0.004
3.65-12.12 Gyr -0.056 0.222 0.352
12.12-13.46 Gyr 0.024 0.495 1.117