2025xch

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Information

Transient

Name: SN2025xch
Right ascension: 19h21m45.05s
Declination: 58d01m59.99s
Discovery Date: Sept. 6, 2025, 5:15 a.m.
Classification: SN Ia
Redshift: 0.094000
MW E(B-V): 0.052

Host

Name:
Right ascension: 19h21m45.13s
Declination: 58d01m59.76s
Redshift: 0.079418
Photometric Redshift: 0.065
 

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 7.02
Cutout download processed 4.15
Global aperture construction processed 0.66
Local aperture photometry processed 4.57
Global aperture photometry processed 4.45
Validate local photometry processed 0.02
Validate global photometry processed 12.35
Host information processed 0.11
Global host SED inference processed 486.62
Local host SED inference processed 616.38
Transient information processed 0.0
Transient MWEBV processed 0.05
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) = 19h21m45.05s, 58d01m59.99s
semi major axis, semi minor axis (arcsec) = 1.33, 1.33
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_g 120.14 0.65 18.701 0.006 AB
PanSTARRS_g 129.39 0.38 18.620 0.003 AB
PanSTARRS_r 290.94 0.52 17.740 0.002 AB
PanSTARRS_i 414.26 0.55 17.357 0.001 AB
PanSTARRS_z 534.42 1.34 17.080 0.003 AB
DES_z 574.35 4.34 17.002 0.008 AB
PanSTARRS_y 574.85 2.26 17.001 0.004 AB

Aperture details

RA, DEC (J2000) = 19h21m45.12s, 58d01m59.90s
semi major axis, semi minor axis (arcsec) = 6.84, 6.24
angle (degrees, anti-clockwise from east) = -29.33

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_g 399.04 1.22 17.397 0.003 AB
PanSTARRS_g 430.45 1.51 17.315 0.004 AB
PanSTARRS_r 881.05 2.07 16.538 0.003 AB
PanSTARRS_i 1242.43 2.29 16.164 0.002 AB
PanSTARRS_z 1572.36 6.03 15.909 0.004 AB
DES_z 1660.16 7.65 15.850 0.005 AB
PanSTARRS_y 1872.4 10.76 15.719 0.006 AB
2MASS_J 2363.51 158.41 14.571 0.073 Vega
2MASS_H 2546.84 285.81 14.017 0.122 Vega
2MASS_K 2602.65 269.83 13.524 0.113 Vega
WISE_W1 1040.0 21.55 13.658 0.022 Vega
WISE_W2 627.95 18.55 13.566 0.032 Vega
WISE_W3 143.75 41.82 13.332 0.316 Vega
WISE_W4 112.75 237.22 12.150 2.284 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})\, 10.269 10.387 10.483
{\rm log}_{10}({\rm SFR}) -4.273 -1.402 -0.556
{\rm log}_{10}({\rm sSFR}) -14.492 -11.749 -10.863
{\rm stellar\ age} 7.495 10.648 12.058

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.605 -1.060 -0.730
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.481 -0.801 -0.069

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.346 0.576 0.871
\delta -0.708 -0.395 0.009
\tau_1/\tau_2 0.478 0.961 1.403
Q_{PAH} 0.811 3.061 5.774
U_{min} 3.249 9.388 17.867
{\rm log}_{10}(\gamma_e)\, -2.968 -1.367 -0.396

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.379 -1.339 -0.718
{\rm log}_{10}(\tau_{AGN})\, 0.970 1.410 1.889

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -5.219 -1.794 -0.747
0.03-0.10 Gyr -5.101 -1.601 -0.525
0.10-0.33 Gyr -5.652 -2.080 -0.651
0.33-1.07 Gyr -6.109 -2.435 -0.662
1.07-3.50 Gyr -4.456 -2.114 -0.173
3.50-11.44 Gyr -1.989 0.086 0.589
11.44-12.71 Gyr 0.189 1.400 1.613

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.716 10.833 10.876
{\rm log}_{10}({\rm SFR}) -5.591 -2.528 -1.206
{\rm log}_{10}({\rm sSFR}) -16.333 -13.326 -11.952
{\rm stellar\ age} 7.558 11.374 12.066

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.965 -0.762 -0.613
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.503 -0.606 0.153

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.086 0.192 0.315
\delta -0.792 -0.474 -0.130
\tau_1/\tau_2 0.525 0.985 1.445
Q_{PAH} 0.527 1.723 3.626
U_{min} 3.261 9.701 17.912
{\rm log}_{10}(\gamma_e)\, -3.028 -2.109 -0.748

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.419 -3.350 -2.429
{\rm log}_{10}(\tau_{AGN})\, 1.032 1.491 1.918

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -6.803 -3.208 -1.589
0.03-0.10 Gyr -6.527 -2.790 -1.117
0.10-0.33 Gyr -6.643 -3.160 -1.274
0.33-1.07 Gyr -6.428 -3.271 -1.203
1.07-3.50 Gyr -4.049 -2.114 -0.341
3.50-11.44 Gyr -1.842 0.274 1.026
11.44-12.71 Gyr 0.487 1.918 2.023