2025say

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Information

Transient

Name: AT2025say
Right ascension: 4h26m07.80s
Declination: -28d37m40.50s
Discovery Date: July 16, 2025, 7:50 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.024

Host

Name:
Right ascension: 4h26m07.89s
Declination: -28d37m40.55s
Redshift: None
Photometric Redshift: 0.107
 

Processing Status: blocked

Task Name Status Time taken (s) Warning Flag
Cutout download processed 18.8
Transient MWEBV processed 0.1
Host match processed 8.56
Host information processed 0.15
Host MWEBV processed 0.09
Global aperture construction processed 0.63
Global aperture photometry processed 4.5
Validate global photometry processed 12.76
Global host SED inference processed 384.32
Local aperture photometry processed 5.11
Validate local photometry processed 0.02
Local host SED inference processed 573.16
 

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) = 4h26m07.80s, -28d37m40.50s
semi major axis, semi minor axis (arcsec) = 1.03, 1.03
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_z 69.87 0.89 19.289 0.014 AB
PanSTARRS_y 69.98 2.4 19.288 0.037 AB

Aperture details

RA, DEC (J2000) = 4h26m07.88s, -28d37m40.32s
semi major axis, semi minor axis (arcsec) = 8.7, 6.85
angle (degrees, anti-clockwise from east) = -5.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 29.55 3.98 20.224 0.146 AB
GALEX_NUV 44.74 3.01 19.773 0.073 AB
DES_g 300.36 0.64 17.706 0.002 AB
PanSTARRS_g 306.05 2.04 17.686 0.007 AB
PanSTARRS_r 469.55 2.75 17.221 0.006 AB
DES_r 511.28 0.88 17.128 0.002 AB
PanSTARRS_i 625.48 3.58 16.909 0.006 AB
PanSTARRS_z 622.12 6.16 16.915 0.011 AB
DES_z 770.98 3.26 16.682 0.005 AB
PanSTARRS_y 767.92 17.91 16.687 0.025 AB
2MASS_J 1047.73 215.55 15.454 0.223 Vega
2MASS_H 922.76 291.97 15.120 0.344 Vega
2MASS_K 1555.29 387.55 14.083 0.271 Vega
WISE_W1 501.12 15.7 14.451 0.034 Vega
WISE_W2 292.07 22.62 14.397 0.084 Vega
WISE_W3 1207.97 95.96 11.021 0.086 Vega
WISE_W4 790.89 477.63 10.035 0.656 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})\, 9.003 9.428 9.661
{\rm log}_{10}({\rm SFR}) -0.694 -0.193 0.362
{\rm log}_{10}({\rm sSFR}) -10.240 -9.661 -8.708
{\rm stellar\ age} 1.752 6.285 9.138

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.172 -0.465 -0.004
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.190 -0.559 0.079

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.317 0.671 1.133
\delta -0.682 -0.290 0.172
\tau_1/\tau_2 0.482 0.922 1.440
Q_{PAH} 0.640 2.896 5.118
U_{min} 3.278 8.662 15.656
{\rm log}_{10}(\gamma_e)\, -3.272 -2.252 -0.871

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.441 -1.170 -0.187
{\rm log}_{10}(\tau_{AGN})\, 0.971 1.420 1.961

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.558 -0.052 0.362
0.03-0.10 Gyr -1.912 -0.520 0.373
0.10-0.32 Gyr -3.161 -1.166 -0.288
0.32-1.06 Gyr -3.753 -1.104 -0.124
1.06-3.43 Gyr -3.462 -1.050 -0.370
3.43-11.14 Gyr -2.740 -0.674 -0.235
11.14-12.37 Gyr -2.444 -0.556 0.427

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.264 10.324 10.368
{\rm log}_{10}({\rm SFR}) 0.144 0.355 0.570
{\rm log}_{10}({\rm sSFR}) -10.193 -9.973 -9.752
{\rm stellar\ age} 4.357 5.517 6.409

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.517 -0.283 -0.144
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.218 0.035 0.186

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.124 0.190 0.310
\delta -0.752 -0.420 -0.076
\tau_1/\tau_2 0.811 1.096 1.408
Q_{PAH} 0.680 1.752 3.279
U_{min} 2.278 6.710 13.251
{\rm log}_{10}(\gamma_e)\, -3.027 -1.895 -1.261

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.443 -3.653 -2.597
{\rm log}_{10}(\tau_{AGN})\, 1.032 1.539 1.922

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.130 0.279 0.418
0.03-0.10 Gyr 0.095 0.384 0.652
0.10-0.32 Gyr 0.444 0.678 0.865
0.32-1.06 Gyr 0.527 0.714 0.862
1.06-3.43 Gyr 0.297 0.513 0.699
3.43-11.14 Gyr 0.123 0.359 0.490
11.14-12.37 Gyr -0.212 0.344 0.727