2025syk

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Information

Transient

Name: AT2025syk
Right ascension: 21h12m07.54s
Declination: 17d17m10.03s
Discovery Date: July 31, 2025, 7:19 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.099

Host

Name:
Right ascension: 21h12m09.13s
Declination: 17d17m18.65s
Redshift: None
Photometric Redshift: 0.059
 

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 7.51
Cutout download processed 25.77
Global aperture construction processed 3.48
Local aperture photometry processed 7.53
Global aperture photometry processed 6.81
Validate local photometry processed 0.02
Validate global photometry processed 18.29
Host information processed 0.26
Global host SED inference processed 798.09
Local host SED inference processed 639.82
Transient information processed 0.0
Transient MWEBV processed 0.04
Host MWEBV processed 0.03
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) = 21h12m07.54s, 17d17m10.03s
semi major axis, semi minor axis (arcsec) = 1.76, 1.76
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 0.88 1.23 24.034 1.512 AB
SDSS_g 0.88 0.58 24.037 0.711 AB
DES_g 0.63 0.11 24.396 0.184 AB
PanSTARRS_g 0.87 0.4 24.051 0.496 AB
SDSS_r 0.56 0.77 24.539 1.512 AB
PanSTARRS_r 0.49 0.44 24.675 0.984 AB
DES_r 0.9 0.23 24.018 0.278 AB
SDSS_i 2.16 1.24 23.062 0.621 AB
PanSTARRS_i 0.04 0.64 27.380 17.273 AB
PanSTARRS_z 0.05 1.23 27.110 25.686 AB
SDSS_z 1.28 4.25 23.628 3.596 AB
DES_z -0.04 0.7 AB
PanSTARRS_y -1.81 3.33 AB

Aperture details

RA, DEC (J2000) = 21h12m08.86s, 17d17m16.49s
semi major axis, semi minor axis (arcsec) = 7.67, 3.29
angle (degrees, anti-clockwise from east) = -138.07

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 6.63 1.86 21.846 0.305 AB
SDSS_u 29.54 3.67 20.224 0.135 AB
SDSS_g 55.77 2.34 19.534 0.045 AB
DES_g 208.67 0.7 18.101 0.004 AB
PanSTARRS_g 59.35 1.14 19.466 0.021 AB
SDSS_r 118.62 3.44 18.715 0.031 AB
PanSTARRS_r 130.13 1.27 18.614 0.011 AB
DES_r 506.67 2.24 17.138 0.005 AB
SDSS_i 172.41 4.67 18.309 0.029 AB
PanSTARRS_i 183.34 1.82 18.242 0.011 AB
PanSTARRS_z 261.23 3.52 17.857 0.015 AB
SDSS_z 259.92 12.63 17.863 0.053 AB
DES_z 985.48 7.61 16.416 0.008 AB
PanSTARRS_y 290.74 9.36 17.741 0.035 AB
2MASS_J 700.23 128.85 15.892 0.200 Vega
2MASS_H 730.77 169.91 15.373 0.252 Vega
2MASS_K 708.82 228.44 14.936 0.350 Vega
WISE_W1 843.48 17.58 13.886 0.023 Vega
WISE_W2 564.31 21.43 13.682 0.041 Vega
WISE_W3 763.57 73.51 11.519 0.105 Vega
WISE_W4 585.4 496.39 10.361 0.921 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})\, 6.965 7.380 7.990
{\rm log}_{10}({\rm SFR}) -1.250 -0.914 -0.548
{\rm log}_{10}({\rm sSFR}) -8.958 -8.035 -7.961
{\rm stellar\ age} 0.016 0.663 7.062

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.986 -0.396 0.031
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.258 -0.640 -0.082

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 2.029 2.611 3.295
\delta 0.197 0.298 0.367
\tau_1/\tau_2 0.604 0.991 1.415
Q_{PAH} 0.673 2.426 5.231
U_{min} 3.276 9.735 17.775
{\rm log}_{10}(\gamma_e)\, -3.349 -2.218 -0.892

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.202 -0.772 0.116
{\rm log}_{10}(\tau_{AGN})\, 0.998 1.434 1.929

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.935 -0.513 -0.133
0.03-0.10 Gyr -4.280 -2.438 -0.996
0.10-0.33 Gyr -6.815 -4.054 -2.039
0.33-1.08 Gyr -8.426 -4.787 -2.440
1.08-3.55 Gyr -9.027 -5.036 -2.406
3.55-11.68 Gyr -9.374 -4.728 -2.120
11.68-12.98 Gyr -9.744 -4.580 -1.874

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.735 9.902 10.013
{\rm log}_{10}({\rm SFR}) 0.023 0.257 0.538
{\rm log}_{10}({\rm sSFR}) -9.935 -9.640 -9.212
{\rm stellar\ age} 5.509 7.001 8.223

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) 0.044 0.130 0.175
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.393 -1.297 -1.184

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 1.032 1.197 1.371
\delta -0.027 0.150 0.284
\tau_1/\tau_2 0.344 0.624 0.944
Q_{PAH} 0.086 0.300 0.672
U_{min} 4.100 9.894 16.772
{\rm log}_{10}(\gamma_e)\, -1.991 -1.495 -1.145

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.094 -2.283 -1.915
{\rm log}_{10}(\tau_{AGN})\, 0.803 0.937 1.200

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.368 0.536 0.706
0.03-0.10 Gyr -0.671 0.030 0.473
0.10-0.33 Gyr -1.021 -0.287 0.140
0.33-1.08 Gyr -1.148 -0.452 -0.052
1.08-3.55 Gyr -0.705 -0.186 0.161
3.55-11.68 Gyr -0.372 -0.016 0.174
11.68-12.98 Gyr -0.568 0.008 0.521