2025gfh

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Information

Transient

Name: AT2025gfh
Right ascension: 17h45m44.52s
Declination: 77d13m30.79s
Discovery Date: March 23, 2025, 9:51 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.043

Host

Name: 2025gfh
Right ascension: 17h45m43.54s
Declination: 77d13m32.16s
Redshift: None
Photometric Redshift: 0.146
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 2.45
Cutout download processed 15.09
Global aperture construction processed 0.67
Local aperture photometry processed 5.61
Global aperture photometry processed 5.7
Validate local photometry no valid phot 0.02
Validate global photometry processed 16.63
Host information processed 0.09
Global host SED inference processed 394.59
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.06
Host MWEBV processed 0.04
Log transient processing status blocked 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) = 17h45m44.52s, 77d13m30.79s
semi major axis, semi minor axis (arcsec) = 0.78, 0.78
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys

Aperture details

RA, DEC (J2000) = 17h45m43.50s, 77d13m32.21s
semi major axis, semi minor axis (arcsec) = 4.69, 3.6
angle (degrees, anti-clockwise from east) = -20.19

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 9.7 2.35 21.433 0.263 AB
GALEX_NUV 13.35 1.79 21.086 0.146 AB
SDSS_u 36.58 3.93 19.992 0.117 AB
SDSS_g 76.38 2.76 19.193 0.039 AB
PanSTARRS_g 83.61 1.43 19.094 0.019 AB
SDSS_r 139.2 3.73 18.541 0.029 AB
PanSTARRS_r 152.55 1.71 18.441 0.012 AB
SDSS_i 207.44 5.52 18.108 0.029 AB
PanSTARRS_i 199.36 1.49 18.151 0.008 AB
PanSTARRS_z 254.59 4.78 17.885 0.020 AB
SDSS_z 272.85 13.89 17.810 0.055 AB
PanSTARRS_y 305.09 9.23 17.689 0.033 AB
2MASS_J 289.09 111.85 16.853 0.420 Vega
2MASS_H 688.48 187.03 15.438 0.295 Vega
2MASS_K 445.36 203.1 15.440 0.495 Vega
WISE_W1 227.2 13.39 15.310 0.064 Vega
WISE_W2 145.65 13.66 15.153 0.102 Vega
WISE_W3 321.94 37.66 12.457 0.127 Vega
WISE_W4 106.79 229.89 12.209 2.337 Vega
 

Imaging data

 

Spectral Energy Distribution

 
 
 
 

Host SED inference


Local parameter details

Documentation

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.317 10.388 10.461
{\rm log}_{10}({\rm SFR}) 0.355 0.665 0.961
{\rm log}_{10}({\rm sSFR}) -10.057 -9.733 -9.390
{\rm stellar\ age} 6.027 6.796 8.344

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.534 -0.278 -0.094
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.522 -0.644 0.156

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.164 0.282 0.448
\delta -0.508 -0.149 0.137
\tau_1/\tau_2 0.606 0.999 1.399
Q_{PAH} 0.738 1.802 3.508
U_{min} 2.611 7.880 14.749
{\rm log}_{10}(\gamma_e)\, -2.711 -1.778 -0.787

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.102 -2.794 -1.749
{\rm log}_{10}(\tau_{AGN})\, 0.993 1.449 1.857

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.628 -0.556 -0.055
0.03-0.10 Gyr 0.480 0.818 1.119
0.10-0.32 Gyr -0.309 0.409 0.734
0.32-1.04 Gyr -0.605 0.072 0.382
1.04-3.33 Gyr -0.466 0.212 0.476
3.33-10.71 Gyr 0.282 0.533 0.659
10.71-11.90 Gyr 0.118 0.668 1.251