2025kyy

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Information

Transient

Name: SN2025kyy
Right ascension: 22h42m47.93s
Declination: 51d30m13.92s
Discovery Date: May 21, 2025, 8:05 p.m.
Classification: SN Ia
Redshift: 0.060000
MW E(B-V): 0.244

Host

Name: 2025kyy
Right ascension: 22h42m48.13s
Declination: 51d30m15.58s
Redshift: None
Photometric Redshift: 0.247
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 0.31
Transient MWEBV processed 0.11
Host match processed 8.13
Host information processed 0.08
Host MWEBV processed 0.09
Global aperture construction processed 2.71
Global aperture photometry processed 4.28
Validate global photometry processed 11.64
Global host SED inference processed 421.05
Local aperture photometry processed 3.94
Validate local photometry processed 0.02
Local host SED inference processed 534.63
 

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) = 22h42m47.93s, 51d30m13.92s
semi major axis, semi minor axis (arcsec) = 1.73, 1.73
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 1.9 0.49 23.204 0.278 AB
PanSTARRS_r 5.46 0.57 22.057 0.113 AB
PanSTARRS_i 6.71 0.95 21.833 0.154 AB
PanSTARRS_z 11.25 1.48 21.272 0.143 AB
PanSTARRS_y 8.65 3.57 21.558 0.448 AB

Aperture details

RA, DEC (J2000) = 22h42m48.09s, 51d30m16.03s
semi major axis, semi minor axis (arcsec) = 7.67, 4.89
angle (degrees, anti-clockwise from east) = -39.4

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 6.54 3.64 21.860 0.604 AB
PanSTARRS_g 46.14 1.73 19.740 0.041 AB
PanSTARRS_r 110.0 2.0 18.797 0.020 AB
PanSTARRS_i 162.42 3.35 18.373 0.022 AB
PanSTARRS_z 220.0 5.23 18.044 0.026 AB
PanSTARRS_y 308.67 12.63 17.676 0.044 AB
2MASS_J 672.47 171.81 15.936 0.277 Vega
2MASS_H 92.69 275.08 17.615 3.222 Vega
2MASS_K -121.16 252.51 Vega
WISE_W1 -782.17 2054.57 Vega
WISE_W2 -493.95 1042.46 Vega
WISE_W3 1455.34 294.21 10.819 0.219 Vega
WISE_W4 1903.77 370.32 9.081 0.211 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})\, 8.191 8.455 8.665
{\rm log}_{10}({\rm SFR}) -1.787 -1.146 -0.705
{\rm log}_{10}({\rm sSFR}) -10.282 -9.647 -9.008
{\rm stellar\ age} 4.012 6.965 8.972

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.319 -0.479 -0.004
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.655 -0.637 0.246

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.649 1.248 1.944
\delta -0.208 0.121 0.307
\tau_1/\tau_2 0.669 1.007 1.371
Q_{PAH} 0.837 2.746 5.477
U_{min} 2.890 7.913 15.173
{\rm log}_{10}(\gamma_e)\, -2.967 -1.944 -0.790

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.118 -0.771 0.109
{\rm log}_{10}(\tau_{AGN})\, 1.109 1.546 1.961

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.891 -1.080 -0.603
0.03-0.10 Gyr -2.277 -1.364 -0.732
0.10-0.33 Gyr -3.132 -1.802 -1.107
0.33-1.08 Gyr -3.617 -1.932 -1.343
1.08-3.55 Gyr -3.266 -1.778 -1.328
3.55-11.66 Gyr -2.572 -1.519 -1.231
11.66-12.96 Gyr -2.583 -1.457 -0.700

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.572 9.709 9.822
{\rm log}_{10}({\rm SFR}) -1.387 -0.691 -0.248
{\rm log}_{10}({\rm sSFR}) -11.069 -10.427 -9.918
{\rm stellar\ age} 4.175 6.735 8.419

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.645 -0.254 -0.037
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.098 0.233 0.399

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.219 0.590 1.026
\delta -0.517 -0.115 0.242
\tau_1/\tau_2 0.539 0.870 1.207
Q_{PAH} 1.309 2.982 5.123
U_{min} 2.690 7.724 14.936
{\rm log}_{10}(\gamma_e)\, -3.033 -1.854 -0.970

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.768 -1.968 -0.670
{\rm log}_{10}(\tau_{AGN})\, 0.957 1.328 1.814

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.241 -0.693 -0.320
0.03-0.10 Gyr -2.040 -0.760 -0.195
0.10-0.33 Gyr -1.670 -0.578 -0.076
0.33-1.08 Gyr -1.338 -0.438 0.030
1.08-3.55 Gyr -0.933 -0.251 0.074
3.55-11.66 Gyr -0.897 -0.246 -0.025
11.66-12.96 Gyr -1.238 -0.207 0.398