2025abyd

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Information

Transient

Name: AT2025abyd
Right ascension: 9h38m16.92s
Declination: 18d53m04.90s
Discovery Date: Oct. 21, 2025, 5:05 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.027

Host

Name: J093816.81+185305.3
Right ascension: 9h38m16.82s
Declination: 18d53m05.36s
Redshift: None
Photometric Redshift: 0.061
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 17.69
Transient MWEBV processed 0.09
Host match processed 4.1
Host information processed 0.05
Host MWEBV processed 0.04
Global aperture construction processed 0.63
Global aperture photometry processed 6.14
Validate global photometry processed 17.42
Global host SED inference processed 390.78
Local aperture photometry processed 5.95
Validate local photometry processed 0.02
Local host SED inference processed 478.72
 

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) = 9h38m16.92s, 18d53m04.90s
semi major axis, semi minor axis (arcsec) = 1.7, 1.7
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 34.27 2.07 20.063 0.065 AB
SDSS_g 87.99 2.48 19.039 0.031 AB
DES_g 100.24 0.54 18.897 0.006 AB
PanSTARRS_g 88.74 0.39 19.030 0.005 AB
SDSS_r 136.66 3.11 18.561 0.025 AB
PanSTARRS_r 131.26 0.42 18.605 0.003 AB
DES_r 160.36 1.24 18.387 0.008 AB
SDSS_i 190.04 3.81 18.203 0.022 AB
PanSTARRS_i 165.87 0.66 18.351 0.004 AB
PanSTARRS_z 201.63 1.17 18.139 0.006 AB
SDSS_z 229.13 5.98 18.000 0.028 AB
DES_z 256.43 3.38 17.878 0.014 AB
PanSTARRS_y 230.23 2.76 17.995 0.013 AB

Aperture details

RA, DEC (J2000) = 9h38m16.84s, 18d53m05.50s
semi major axis, semi minor axis (arcsec) = 7.19, 4.53
angle (degrees, anti-clockwise from east) = -78.97

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 35.99 0.98 20.010 0.030 AB
SDSS_u 75.6 5.47 19.204 0.079 AB
SDSS_g 258.71 4.47 17.868 0.019 AB
DES_g 265.57 0.95 17.840 0.004 AB
PanSTARRS_r 407.36 1.24 17.375 0.003 AB
DES_r 455.61 2.17 17.254 0.005 AB
PanSTARRS_i 544.21 2.05 17.061 0.004 AB
PanSTARRS_z 618.58 3.75 16.922 0.007 AB
SDSS_z 666.91 16.71 16.840 0.027 AB
DES_z 666.79 5.74 16.840 0.009 AB
PanSTARRS_y 738.28 9.14 16.729 0.013 AB
2MASS_H 990.52 208.55 15.043 0.229 Vega
2MASS_K 1271.6 199.92 14.301 0.171 Vega
WISE_W1 484.33 15.08 14.488 0.034 Vega
WISE_W2 299.22 19.03 14.371 0.069 Vega
WISE_W3 1120.61 89.79 11.102 0.087 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})\, 9.066 9.351 9.460
{\rm log}_{10}({\rm SFR}) -0.597 -0.097 0.455
{\rm log}_{10}({\rm sSFR}) -10.067 -9.471 -8.697
{\rm stellar\ age} 1.976 5.590 7.112

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.471 -0.128 0.088
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.778 -1.263 -0.124

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.227 0.539 0.938
\delta -0.617 -0.233 0.123
\tau_1/\tau_2 0.652 1.045 1.444
Q_{PAH} 1.122 3.331 5.618
U_{min} 3.325 9.142 16.191
{\rm log}_{10}(\gamma_e)\, -3.242 -1.703 -0.416

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.849 -1.996 -0.740
{\rm log}_{10}(\tau_{AGN})\, 0.981 1.556 2.005

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.812 -0.495 -0.153
0.03-0.10 Gyr -0.612 -0.009 0.590
0.10-0.33 Gyr -0.999 -0.281 0.189
0.33-1.08 Gyr -1.642 -0.597 -0.248
1.08-3.55 Gyr -1.819 -0.626 -0.345
3.55-11.65 Gyr -2.122 -0.718 -0.449
11.65-12.94 Gyr -2.027 -0.740 -0.195

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.821 9.886 9.941
{\rm log}_{10}({\rm SFR}) -0.493 -0.260 -0.034
{\rm log}_{10}({\rm sSFR}) -10.397 -10.144 -9.897
{\rm stellar\ age} 5.448 6.385 7.289

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.631 -0.349 -0.148
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.206 0.105 0.362

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.143 0.259 0.447
\delta -0.399 0.017 0.271
\tau_1/\tau_2 0.818 1.124 1.457
Q_{PAH} 0.756 2.335 4.404
U_{min} 2.409 7.131 13.912
{\rm log}_{10}(\gamma_e)\, -3.048 -1.992 -1.176

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.191 -2.961 -1.935
{\rm log}_{10}(\tau_{AGN})\, 1.016 1.486 1.907

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.595 -0.373 -0.196
0.03-0.10 Gyr -0.532 -0.221 0.059
0.10-0.33 Gyr -0.242 0.019 0.275
0.33-1.08 Gyr -0.194 0.034 0.209
1.08-3.55 Gyr -0.198 0.009 0.183
3.55-11.65 Gyr -0.232 -0.042 0.082
11.65-12.94 Gyr -0.475 -0.022 0.361