2025gcy

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Information

Transient

Name: AT2025gcy
Right ascension: 8h54m48.88s
Declination: 0d50m51.59s
Discovery Date: March 27, 2025, 8:40 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.044

Host

Name: 2025gcy
Right ascension: 8h54m48.69s
Declination: 0d51m02.62s
Redshift: 0.107073
Photometric Redshift: 0.094
 

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
no valid phot
 status
Local host SED inference
Local host SED inference
not 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 1.77
Cutout download processed 2.43
Global aperture construction processed 0.18
Local aperture photometry processed 0.86
Global aperture photometry processed 0.93
Validate local photometry no valid phot 0.01
Validate global photometry processed 1.42
Host information processed 0.09
Global host SED inference processed 562.66
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.07
Host MWEBV processed 0.06
Processing status blocked 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) = 8h54m48.88s, 0d50m51.59s
semi major axis, semi minor axis (arcsec) = 1.02, 1.02
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) = 8h54m48.70s, 0d51m02.49s
semi major axis, semi minor axis (arcsec) = 13.02, 9.92
angle (degrees, anti-clockwise from east) = -147.64

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 67.68 1.26 19.324 0.020 AB
2MASS_J 3299.35 297.62 14.209 0.098 Vega
2MASS_H 4802.14 439.49 13.329 0.099 Vega
2MASS_K 3406.19 531.98 13.232 0.170 Vega
WISE_W1 1918.01 33.58 12.994 0.019 Vega
WISE_W2 1176.21 34.38 12.885 0.032 Vega
WISE_W3 3107.35 153.58 9.995 0.054 Vega
WISE_W4 3001.55 810.9 8.587 0.293 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})\, 10.788 10.960 11.141
{\rm log}_{10}({\rm SFR}) 0.471 0.892 1.437
{\rm log}_{10}({\rm sSFR}) -10.533 -10.109 -9.472
{\rm stellar\ age} 3.960 6.244 8.244

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.483 -0.127 0.074
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.992 -0.385 0.073

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.169 0.268 0.467
\delta -0.886 -0.597 -0.182
\tau_1/\tau_2 0.285 0.744 1.257
Q_{PAH} 0.220 0.783 2.747
U_{min} 2.275 6.710 13.238
{\rm log}_{10}(\gamma_e)\, -3.348 -2.282 -1.348

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.536 -3.671 -2.387
{\rm log}_{10}(\tau_{AGN})\, 1.084 1.610 1.971

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.063 0.859 1.255
0.03-0.10 Gyr -0.004 0.784 1.533
0.10-0.32 Gyr -0.045 0.781 1.322
0.32-1.06 Gyr 0.122 0.969 1.442
1.06-3.43 Gyr 0.303 0.968 1.285
3.43-11.13 Gyr 0.369 0.976 1.254
11.13-12.37 Gyr 0.305 1.075 1.775