2025fby

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Information

Transient

Name: AT2025fby
Right ascension: 19h54m33.94s
Declination: 76d18m25.60s
Discovery Date: March 20, 2025, 11:28 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.181

Host

Name: 2025fby
Right ascension: 19h54m33.72s
Declination: 76d18m28.55s
Redshift: None
Photometric Redshift: 0.088
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 1.98
Cutout download processed 14.33
Global aperture construction processed 0.61
Local aperture photometry processed 4.24
Global aperture photometry processed 4.74
Validate local photometry processed 0.02
Validate global photometry processed 14.93
Host information processed 0.08
Global host SED inference processed 419.19
Local host SED inference processed 443.72
Transient information processed 0.0
Transient MWEBV processed 0.05
Host MWEBV processed 0.05
Log transient processing status processed None
 

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) = 19h54m33.94s, 76d18m25.60s
semi major axis, semi minor axis (arcsec) = 1.21, 1.21
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 18.51 0.42 20.732 0.025 AB
PanSTARRS_i 31.15 0.44 20.166 0.015 AB
PanSTARRS_z 40.14 1.04 19.891 0.028 AB
PanSTARRS_y 49.39 2.49 19.666 0.055 AB

Aperture details

RA, DEC (J2000) = 19h54m33.71s, 76d18m28.64s
semi major axis, semi minor axis (arcsec) = 6.73, 5.65
angle (degrees, anti-clockwise from east) = -138.97

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 1.09 1.51 23.805 1.507 AB
GALEX_NUV 1.9 0.93 23.201 0.528 AB
SDSS_u 27.9 4.93 20.286 0.192 AB
SDSS_g 178.95 4.3 18.268 0.026 AB
PanSTARRS_g 183.19 1.52 18.243 0.009 AB
SDSS_r 431.15 6.26 17.313 0.016 AB
PanSTARRS_r 421.22 2.1 17.339 0.005 AB
SDSS_i 709.68 8.25 16.772 0.013 AB
PanSTARRS_i 714.19 2.15 16.765 0.003 AB
PanSTARRS_z 937.43 5.11 16.470 0.006 AB
SDSS_z 926.79 19.96 16.483 0.023 AB
PanSTARRS_y 1127.43 12.14 16.270 0.012 AB
2MASS_J 1628.56 165.08 14.976 0.110 Vega
2MASS_H 2000.29 214.34 14.280 0.116 Vega
2MASS_K 1511.71 321.95 14.114 0.231 Vega
WISE_W1 866.42 18.42 13.857 0.023 Vega
WISE_W2 536.85 17.62 13.736 0.036 Vega
WISE_W3 264.92 76.58 12.668 0.314 Vega
WISE_W4 274.45 320.56 11.184 1.268 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})\, 9.165 9.349 9.472
{\rm log}_{10}({\rm SFR}) -1.542 -0.875 -0.243
{\rm log}_{10}({\rm sSFR}) -10.940 -10.275 -9.482
{\rm stellar\ age} 4.070 6.628 8.176

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.275 -0.457 -0.036
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.454 -0.696 0.096

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.463 0.946 1.436
\delta -0.371 -0.072 0.213
\tau_1/\tau_2 0.592 0.953 1.333
Q_{PAH} 0.807 2.588 5.278
U_{min} 2.957 7.911 14.720
{\rm log}_{10}(\gamma_e)\, -3.069 -1.986 -0.870

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.469 -0.729 -0.092
{\rm log}_{10}(\tau_{AGN})\, 0.962 1.512 1.906

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.534 -0.867 -0.371
0.03-0.10 Gyr -1.903 -0.968 -0.197
0.10-0.33 Gyr -1.929 -0.980 -0.275
0.33-1.06 Gyr -1.800 -0.873 -0.261
1.06-3.47 Gyr -1.634 -0.713 -0.393
3.47-11.34 Gyr -1.346 -0.592 -0.375
11.34-12.60 Gyr -1.388 -0.560 0.053

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.578 10.670 10.776
{\rm log}_{10}({\rm SFR}) -2.685 -0.775 -0.029
{\rm log}_{10}({\rm sSFR}) -13.354 -11.381 -10.615
{\rm stellar\ age} 6.578 7.569 10.978

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.078 -0.714 -0.523
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.621 -0.579 0.249

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.266 0.429 0.633
\delta -0.812 -0.520 -0.185
\tau_1/\tau_2 0.595 0.967 1.343
Q_{PAH} 0.513 1.453 3.049
U_{min} 3.033 8.363 15.951
{\rm log}_{10}(\gamma_e)\, -3.227 -2.396 -1.371

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.383 -3.384 -2.383
{\rm log}_{10}(\tau_{AGN})\, 0.994 1.428 1.865

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.065 -0.829 -0.181
0.03-0.10 Gyr -3.636 -0.942 0.034
0.10-0.33 Gyr -4.075 -0.887 0.191
0.33-1.06 Gyr -3.323 -0.671 0.244
1.06-3.47 Gyr -2.076 0.155 0.755
3.47-11.34 Gyr -0.014 0.799 0.981
11.34-12.60 Gyr -0.071 0.908 1.841