2025sby

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Information

Transient

Name: AT2025sby
Right ascension: 0h49m45.12s
Declination: 27d36m20.04s
Discovery Date: July 24, 2025, 11:16 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.052

Host

Name:
Right ascension: 0h49m45.06s
Declination: 27d36m19.13s
Redshift: None
Photometric Redshift: 0.102
 

Processing Status

Cutout download
 Cutout download
processed
 status
Transient information
Transient information
processed
 status
Transient MWEBV
Transient MWEBV
processed
 status
Host match
 Host match
processed
 status
Host information
Host information
processed
 status
Local aperture photometry
 Local aperture photometry
processed
 status
Validate local photometry
 Validate local photometry
processed
 status
Local host SED inference
Local host SED inference
processed
 status
Host MWEBV
Host MWEBV
processed
 status
Global host SED inference
Global host SED inference
processed
 status
Validate global photometry
Validate global photometr...
processed
 status
Global aperture construction
 Global aperture construct...
processed
 status
Global aperture photometry
 Global aperture photometr...
processed
 status
Task Name Status Time taken (s) Warning Flag
Host match processed 5.76
Cutout download processed 32.64
Global aperture construction processed 0.68
Local aperture photometry processed 6.65
Global aperture photometry processed 5.57
Validate local photometry processed 0.03
Validate global photometry processed 16.14
Host information processed 0.15
Global host SED inference processed 411.04
Local host SED inference processed 451.9
Transient information processed 0.0
Transient MWEBV processed 0.04
Host MWEBV processed 0.04
Processing status completed N/A N/A
 

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) = 0h49m45.12s, 27d36m20.04s
semi major axis, semi minor axis (arcsec) = 1.07, 1.07
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_r 74.9 0.69 19.214 0.010 AB
PanSTARRS_z 127.8 0.97 18.634 0.008 AB
DES_z 141.05 2.43 18.527 0.019 AB
PanSTARRS_y 151.46 2.06 18.449 0.015 AB

Aperture details

RA, DEC (J2000) = 0h49m45.05s, 27d36m19.46s
semi major axis, semi minor axis (arcsec) = 9.87, 4.13
angle (degrees, anti-clockwise from east) = -149.42

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 6.61 2.67 21.849 0.438 AB
GALEX_NUV 6.0 2.77 21.954 0.501 AB
SDSS_u 64.74 7.69 19.372 0.129 AB
SDSS_g 189.72 4.24 18.205 0.024 AB
DES_g 212.93 0.77 18.079 0.004 AB
PanSTARRS_g 213.33 1.42 18.077 0.007 AB
SDSS_r 418.53 6.34 17.346 0.016 AB
PanSTARRS_r 421.28 1.68 17.339 0.004 AB
DES_r 483.43 1.93 17.189 0.004 AB
SDSS_i 609.97 8.19 16.937 0.015 AB
PanSTARRS_i 650.99 2.77 16.866 0.005 AB
PanSTARRS_z 799.88 5.42 16.642 0.007 AB
SDSS_z 768.34 23.99 16.686 0.034 AB
DES_z 860.78 6.27 16.563 0.008 AB
PanSTARRS_y 996.79 12.0 16.403 0.013 AB
2MASS_J 1365.25 167.28 15.167 0.133 Vega
2MASS_H 1502.27 249.33 14.591 0.180 Vega
2MASS_K 1715.6 271.15 13.976 0.172 Vega
WISE_W1 793.33 17.95 13.952 0.025 Vega
WISE_W2 543.87 22.69 13.722 0.045 Vega
WISE_W3 2569.66 79.63 10.201 0.034 Vega
WISE_W4 5257.24 761.79 7.978 0.157 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})\, 9.707 9.829 9.950
{\rm log}_{10}({\rm SFR}) -0.946 -0.321 0.205
{\rm log}_{10}({\rm sSFR}) -10.823 -10.170 -9.559
{\rm stellar\ age} 4.385 6.769 8.630

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.390 -0.613 -0.119
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.375 -0.583 0.151

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.341 0.779 1.246
\delta -0.671 -0.292 0.130
\tau_1/\tau_2 0.624 1.004 1.341
Q_{PAH} 0.763 2.863 5.451
U_{min} 2.765 7.795 14.492
{\rm log}_{10}(\gamma_e)\, -3.346 -2.339 -0.758

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.359 -1.270 -0.344
{\rm log}_{10}(\tau_{AGN})\, 1.052 1.499 1.949

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.096 -0.345 0.107
0.03-0.10 Gyr -1.323 -0.399 0.265
0.10-0.33 Gyr -1.355 -0.482 0.264
0.33-1.06 Gyr -1.445 -0.455 0.200
1.06-3.44 Gyr -1.404 -0.320 0.057
3.44-11.19 Gyr -0.734 -0.102 0.122
11.19-12.43 Gyr -0.812 -0.045 0.674

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.515 10.613 10.686
{\rm log}_{10}({\rm SFR}) -0.136 0.558 1.019
{\rm log}_{10}({\rm sSFR}) -10.715 -10.065 -9.544
{\rm stellar\ age} 6.297 7.308 9.067

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.531 -0.265 -0.129
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, 0.024 0.259 0.401

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.289 0.415 0.600
\delta -0.887 -0.678 -0.227
\tau_1/\tau_2 0.578 0.920 1.269
Q_{PAH} 1.151 2.556 4.487
U_{min} 2.566 7.489 14.239
{\rm log}_{10}(\gamma_e)\, -2.446 -1.457 -0.627

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.720 -2.339 -1.384
{\rm log}_{10}(\tau_{AGN})\, 1.125 1.574 1.938

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.259 0.224 0.425
0.03-0.10 Gyr -0.180 0.649 1.153
0.10-0.33 Gyr -0.668 0.198 0.587
0.33-1.06 Gyr -0.785 0.072 0.422
1.06-3.44 Gyr -0.313 0.352 0.709
3.44-11.19 Gyr 0.381 0.744 0.891
11.19-12.43 Gyr 0.259 0.870 1.493