2025yyn

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Information

Transient

Name: SN2025yyn
Right ascension: 9h54m16.55s
Declination: 68d19m56.29s
Discovery Date: Sept. 30, 2025, 11:27 a.m.
Classification: SN IIb
Redshift: 0.014630
MW E(B-V): 0.093

Host

Name:
Right ascension: 9h54m21.85s
Declination: 68d19m56.77s
Redshift: None
Photometric Redshift: 0.010
 

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 6.15
Cutout download processed 15.64
Global aperture construction processed 0.63
Local aperture photometry processed 5.05
Global aperture photometry processed 5.01
Validate local photometry processed 0.02
Validate global photometry processed 14.02
Host information processed 0.11
Global host SED inference processed 480.92
Local host SED inference processed 450.67
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) = 9h54m16.55s, 68d19m56.29s
semi major axis, semi minor axis (arcsec) = 6.7, 6.7
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 23.6 0.49 20.468 0.023 AB
GALEX_NUV 24.44 0.7 20.430 0.031 AB
SDSS_u 76.66 6.44 19.189 0.091 AB
SDSS_g 166.6 4.82 18.346 0.031 AB
PanSTARRS_g 218.77 2.45 18.050 0.012 AB
SDSS_r 233.71 6.86 17.978 0.032 AB
PanSTARRS_r 362.14 3.89 17.503 0.012 AB
SDSS_i 320.65 9.17 17.635 0.031 AB
PanSTARRS_i 437.9 2.89 17.297 0.007 AB
PanSTARRS_z 506.12 6.07 17.139 0.013 AB
SDSS_z 265.7 25.7 17.839 0.105 AB
PanSTARRS_y 637.15 12.44 16.889 0.021 AB
2MASS_J 724.27 159.56 15.855 0.239 Vega
2MASS_H 587.99 275.85 15.609 0.509 Vega
2MASS_K 744.32 243.85 14.883 0.356 Vega
WISE_W1 64.03 29.15 16.685 0.494 Vega
WISE_W2 46.55 34.73 16.391 0.810 Vega

Aperture details

RA, DEC (J2000) = 9h54m21.90s, 68d19m55.96s
semi major axis, semi minor axis (arcsec) = 28.37, 23.71
angle (degrees, anti-clockwise from east) = -25.01

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 227.22 1.98 18.009 0.009 AB
SDSS_g 3668.89 20.44 14.989 0.006 AB
PanSTARRS_g 4794.96 9.55 14.698 0.002 AB
SDSS_i 9394.64 40.4 13.968 0.005 AB
PanSTARRS_z 14070.41 24.33 13.529 0.002 AB
PanSTARRS_y 16276.28 49.93 13.371 0.003 AB
2MASS_J 19383.04 621.27 12.287 0.035 Vega
2MASS_H 23014.95 1072.89 11.627 0.051 Vega
WISE_W1 10520.11 158.18 11.146 0.016 Vega
WISE_W4 21928.46 2598.55 6.427 0.129 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})\, 8.570 8.726 8.844
{\rm log}_{10}({\rm SFR}) -1.393 -0.920 -0.596
{\rm log}_{10}({\rm sSFR}) -10.134 -9.704 -9.247
{\rm stellar\ age} 5.139 7.264 8.760

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.510 -0.993 -0.479
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.187 -0.283 0.010

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.352 0.910 1.239
\delta 0.105 0.262 0.351
\tau_1/\tau_2 0.750 1.082 1.417
Q_{PAH} 0.353 1.243 3.117
U_{min} 2.729 7.726 14.690
{\rm log}_{10}(\gamma_e)\, -3.393 -2.402 -1.270

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.239 -2.637 -0.759
{\rm log}_{10}(\tau_{AGN})\, 0.980 1.337 1.804

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.360 -0.934 -0.630
0.03-0.10 Gyr -1.491 -0.956 -0.566
0.10-0.33 Gyr -1.994 -1.289 -0.799
0.33-1.10 Gyr -2.294 -1.510 -1.087
1.10-3.63 Gyr -2.106 -1.409 -1.112
3.63-12.02 Gyr -1.662 -1.211 -1.010
12.02-13.36 Gyr -1.797 -1.142 -0.580

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.108 10.163 10.242
{\rm log}_{10}({\rm SFR}) -0.689 -0.314 0.044
{\rm log}_{10}({\rm sSFR}) -10.883 -10.495 -10.094
{\rm stellar\ age} 7.673 8.653 11.613

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.356 -0.221 -0.086
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.325 -0.692 -0.322

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.067 0.126 0.214
\delta -0.875 -0.579 -0.194
\tau_1/\tau_2 0.611 1.005 1.455
Q_{PAH} 0.489 2.123 4.599
U_{min} 2.318 6.964 13.995
{\rm log}_{10}(\gamma_e)\, -3.229 -2.085 -0.981

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.967 -2.270 -1.389
{\rm log}_{10}(\tau_{AGN})\, 1.091 1.479 1.933

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.073 -0.597 -0.301
0.03-0.10 Gyr -0.903 -0.242 0.181
0.10-0.33 Gyr -1.247 -0.468 -0.020
0.33-1.10 Gyr -1.585 -0.687 -0.245
1.10-3.63 Gyr -1.388 -0.503 -0.038
3.63-12.02 Gyr -0.316 0.258 0.378
12.02-13.36 Gyr 0.143 0.660 1.280