2025gkg

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Information

Transient

Name: SN2025gkg
Right ascension: 12h49m07.12s
Declination: -41d49m56.36s
Discovery Date: April 2, 2025, 3:31 a.m.
Classification: SN Ia
Redshift: 0.014700
MW E(B-V): 0.095

Host

Name: 2025gkg
Right ascension: 12h49m06.38s
Declination: -41d49m56.28s
Redshift: 0.014750
Photometric Redshift:
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 0.33
Cutout download processed 0.33
Global aperture construction processed 0.17
Local aperture photometry processed 0.94
Global aperture photometry processed 1.03
Validate local photometry processed 0.01
Validate global photometry processed 1.49
Host information processed 0.09
Global host SED inference processed 1896.41
Local host SED inference processed 2880.78
Transient information processed 0.0
Transient MWEBV processed 0.05
Host MWEBV processed 0.08
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) = 12h49m07.12s, -41d49m56.36s
semi major axis, semi minor axis (arcsec) = 6.65, 6.65
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 -4.27 3.39 AB
GALEX_NUV 9.89 2.55 21.412 0.280 AB
2MASS_J 9865.88 152.11 13.020 0.017 Vega
2MASS_H 12399.26 192.95 12.299 0.017 Vega
2MASS_K 10169.79 268.06 12.044 0.029 Vega
WISE_W1 3489.18 27.33 12.344 0.009 Vega
WISE_W2 1769.66 24.07 12.441 0.015 Vega

Aperture details

RA, DEC (J2000) = 12h49m06.42s, -41d49m56.25s
semi major axis, semi minor axis (arcsec) = 25.79, 16.69
angle (degrees, anti-clockwise from east) = -105.08

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 2.54 12.4 22.888 5.304 AB
GALEX_NUV 68.05 7.69 19.318 0.123 AB
2MASS_J 44267.53 468.85 11.390 0.011 Vega
2MASS_H 58211.48 596.14 10.620 0.011 Vega
2MASS_K 46761.79 833.24 10.387 0.019 Vega
WISE_W1 21670.17 88.87 10.361 0.004 Vega
WISE_W2 11684.26 82.27 10.392 0.008 Vega
WISE_W3 3388.92 183.94 9.901 0.059 Vega
WISE_W4 1840.24 674.25 9.118 0.398 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})\, 9.687 9.880 10.026
{\rm log}_{10}({\rm SFR}) -2.450 -1.397 -0.731
{\rm log}_{10}({\rm sSFR}) -12.261 -11.273 -10.576
{\rm stellar\ age} 6.743 8.961 12.599

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.797 -1.210 -0.679
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.181 -0.375 0.161

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.186 0.323 0.502
\delta -0.948 -0.807 -0.542
\tau_1/\tau_2 0.295 0.700 1.181
Q_{PAH} 0.262 0.993 3.203
U_{min} 2.901 8.347 15.976
{\rm log}_{10}(\gamma_e)\, -3.458 -2.458 -1.195

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.585 -3.838 -2.916
{\rm log}_{10}(\tau_{AGN})\, 1.096 1.621 2.014

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.477 -1.324 -0.609
0.03-0.10 Gyr -3.848 -1.948 -0.967
0.10-0.33 Gyr -4.449 -2.116 -1.066
0.33-1.10 Gyr -4.650 -1.707 -0.449
1.10-3.63 Gyr -3.832 -1.128 -0.090
3.63-12.02 Gyr -2.107 -0.288 0.078
12.02-13.36 Gyr -0.496 0.478 1.145

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.506 10.621 10.741
{\rm log}_{10}({\rm SFR}) -5.247 -2.417 -1.439
{\rm log}_{10}({\rm sSFR}) -15.846 -13.003 -12.078
{\rm stellar\ age} 7.720 10.030 12.677

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.958 -0.664 -0.373
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.521 -0.737 -0.001

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.036 0.127 0.387
\delta -0.873 -0.564 -0.110
\tau_1/\tau_2 0.357 0.810 1.305
Q_{PAH} 0.299 0.944 3.156
U_{min} 2.689 8.523 16.315
{\rm log}_{10}(\gamma_e)\, -3.561 -2.674 -1.299

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.569 -3.812 -2.940
{\rm log}_{10}(\tau_{AGN})\, 1.076 1.566 1.947

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -6.423 -2.827 -1.630
0.03-0.10 Gyr -6.091 -2.699 -1.440
0.10-0.33 Gyr -5.981 -2.625 -1.265
0.33-1.10 Gyr -5.501 -2.281 -0.765
1.10-3.63 Gyr -3.887 -1.400 0.404
3.63-12.02 Gyr -1.861 0.397 0.828
12.02-13.36 Gyr 0.072 1.422 1.870