2025chi

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Information

Transient

Name: AT2025chi
Right ascension: 6h57m51.12s
Declination: 42d31m44.01s
Discovery Date: Feb. 22, 2025, 1:49 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.092

Host

Name: 2025chi
Right ascension: 6h57m51.43s
Declination: 42d31m50.74s
Redshift: 0.045082
Photometric Redshift: 0.082
 

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 2.07
Cutout download processed 2.31
Global aperture construction processed 0.65
Local aperture photometry processed 4.14
Global aperture photometry processed 4.18
Validate local photometry processed 0.02
Validate global photometry processed 13.82
Host information processed 0.11
Global host SED inference processed 418.42
Local host SED inference processed 424.62
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) = 6h57m51.12s, 42d31m44.01s
semi major axis, semi minor axis (arcsec) = 2.26, 2.26
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 14.86 0.54 20.970 0.039 AB
PanSTARRS_r 30.48 0.67 20.190 0.024 AB
PanSTARRS_i 44.89 0.55 19.770 0.013 AB
PanSTARRS_z 58.66 1.54 19.479 0.028 AB
PanSTARRS_y 67.59 3.57 19.325 0.057 AB

Aperture details

RA, DEC (J2000) = 6h57m51.43s, 42d31m51.00s
semi major axis, semi minor axis (arcsec) = 12.5, 6.08
angle (degrees, anti-clockwise from east) = -162.13

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 12.33 3.88 21.172 0.342 AB
GALEX_NUV 13.31 4.0 21.089 0.326 AB
PanSTARRS_g 405.63 2.07 17.380 0.006 AB
PanSTARRS_r 857.56 2.56 16.567 0.003 AB
PanSTARRS_i 1270.18 2.14 16.140 0.002 AB
PanSTARRS_z 1656.24 5.84 15.852 0.004 AB
PanSTARRS_y 1892.75 13.72 15.707 0.008 AB
2MASS_J 2915.61 210.84 14.343 0.079 Vega
2MASS_H 3181.99 300.18 13.776 0.102 Vega
2MASS_K 2859.5 334.7 13.421 0.127 Vega
WISE_W1 1371.2 31.47 13.358 0.025 Vega
WISE_W2 844.7 33.09 13.244 0.043 Vega
WISE_W3 1316.46 104.5 10.927 0.086 Vega
WISE_W4 232.74 452.32 11.363 2.110 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})\, 8.734 8.858 8.992
{\rm log}_{10}({\rm SFR}) -2.178 -1.542 -0.929
{\rm log}_{10}({\rm sSFR}) -11.099 -10.471 -9.746
{\rm stellar\ age} 5.502 7.237 8.972

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.313 -0.715 -0.210
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.750 -1.014 0.094

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.476 0.968 1.437
\delta -0.281 -0.029 0.207
\tau_1/\tau_2 0.648 0.993 1.335
Q_{PAH} 0.652 2.228 4.596
U_{min} 2.879 8.050 15.308
{\rm log}_{10}(\gamma_e)\, -2.911 -1.511 -0.459

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.991 -0.795 -0.055
{\rm log}_{10}(\tau_{AGN})\, 1.134 1.588 1.964

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.408 -1.633 -1.085
0.03-0.10 Gyr -2.315 -1.621 -0.906
0.10-0.33 Gyr -2.340 -1.579 -0.953
0.33-1.09 Gyr -2.507 -1.549 -1.000
1.09-3.59 Gyr -2.203 -1.214 -0.934
3.59-11.84 Gyr -1.566 -1.066 -0.872
11.84-13.15 Gyr -1.683 -1.000 -0.357

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.306 10.377 10.447
{\rm log}_{10}({\rm SFR}) -1.129 -0.713 -0.244
{\rm log}_{10}({\rm sSFR}) -11.530 -11.061 -10.602
{\rm stellar\ age} 8.117 10.691 12.401

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.754 -0.518 -0.341
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.698 -0.773 0.192

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.199 0.329 0.525
\delta -0.280 -0.024 0.213
\tau_1/\tau_2 0.548 0.979 1.425
Q_{PAH} 0.358 1.128 3.259
U_{min} 2.781 7.864 15.292
{\rm log}_{10}(\gamma_e)\, -2.965 -1.739 -0.911

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.008 -2.831 -1.900
{\rm log}_{10}(\tau_{AGN})\, 1.099 1.600 1.956

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.575 -0.893 -0.504
0.03-0.10 Gyr -1.445 -0.711 -0.137
0.10-0.33 Gyr -2.692 -1.087 -0.493
0.33-1.09 Gyr -3.702 -1.357 -0.688
1.09-3.59 Gyr -3.126 -1.199 -0.436
3.59-11.84 Gyr -1.350 0.235 0.557
11.84-13.15 Gyr 0.496 1.311 1.568