2025sir

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Information

Transient

Name: AT2025sir
Right ascension: 23h05m13.95s
Declination: 77d38m03.40s
Discovery Date: July 26, 2025, 7:10 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.173

Host

Name:
Right ascension: 23h05m15.64s
Declination: 77d38m07.73s
Redshift: 0.058234
Photometric Redshift:
 

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 5.41
Cutout download processed 16.47
Global aperture construction processed 0.67
Local aperture photometry processed 4.1
Global aperture photometry processed 3.66
Validate local photometry processed 0.02
Validate global photometry processed 10.58
Host information processed 0.15
Global host SED inference processed 388.49
Local host SED inference processed 524.87
Transient information processed 0.0
Transient MWEBV processed 0.09
Host MWEBV processed 0.05
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) = 23h05m13.95s, 77d38m03.40s
semi major axis, semi minor axis (arcsec) = 1.78, 1.78
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 27.23 0.52 20.312 0.021 AB
PanSTARRS_r 56.52 0.71 19.520 0.014 AB
PanSTARRS_i 81.32 0.94 19.124 0.013 AB
PanSTARRS_z 116.59 1.79 18.733 0.017 AB
PanSTARRS_y 152.18 4.05 18.444 0.029 AB

Aperture details

RA, DEC (J2000) = 23h05m15.58s, 77d38m07.94s
semi major axis, semi minor axis (arcsec) = 18.89, 5.46
angle (degrees, anti-clockwise from east) = -143.13

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 27.85 4.4 20.288 0.172 AB
PanSTARRS_g 632.79 2.94 16.897 0.005 AB
PanSTARRS_r 1443.34 4.08 16.002 0.003 AB
PanSTARRS_i 2218.03 5.33 15.535 0.003 AB
PanSTARRS_z 2973.81 10.01 15.217 0.004 AB
PanSTARRS_y 4017.17 22.64 14.890 0.006 AB
2MASS_J 5330.42 252.54 13.688 0.051 Vega
2MASS_H 7545.57 385.14 12.838 0.055 Vega
2MASS_K 6997.56 445.46 12.450 0.069 Vega
WISE_W1 3576.32 34.23 12.317 0.010 Vega
WISE_W2 2111.85 37.86 12.249 0.019 Vega
WISE_W3 4709.86 114.11 9.543 0.026 Vega
WISE_W4 5462.52 706.79 7.937 0.140 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})\, 9.040 9.330 9.456
{\rm log}_{10}({\rm SFR}) -1.515 -0.690 0.117
{\rm log}_{10}({\rm sSFR}) -10.902 -10.005 -9.020
{\rm stellar\ age} 2.971 6.383 8.380

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.460 -0.060 0.109
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.629 -0.694 0.200

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.299 0.839 1.357
\delta -0.573 -0.228 0.176
\tau_1/\tau_2 0.646 1.023 1.437
Q_{PAH} 0.814 2.680 5.141
U_{min} 3.234 8.865 16.191
{\rm log}_{10}(\gamma_e)\, -2.814 -1.426 -0.487

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.287 -0.912 -0.178
{\rm log}_{10}(\tau_{AGN})\, 1.122 1.687 2.023

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.953 -0.984 -0.371
0.03-0.10 Gyr -1.676 -0.680 0.239
0.10-0.33 Gyr -1.580 -0.692 0.012
0.33-1.08 Gyr -2.156 -0.874 -0.223
1.08-3.55 Gyr -2.052 -0.802 -0.420
3.55-11.68 Gyr -1.969 -0.704 -0.424
11.68-12.98 Gyr -1.859 -0.681 0.039

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.852 10.902 10.975
{\rm log}_{10}({\rm SFR}) 0.175 0.433 0.725
{\rm log}_{10}({\rm sSFR}) -10.760 -10.469 -10.138
{\rm stellar\ age} 7.620 8.777 11.486

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.175 -0.038 0.064
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.296 0.217 0.377

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.226 0.346 0.491
\delta -0.514 -0.279 0.024
\tau_1/\tau_2 0.638 1.031 1.441
Q_{PAH} 0.772 1.829 3.240
U_{min} 2.782 7.759 14.279
{\rm log}_{10}(\gamma_e)\, -2.955 -2.081 -1.336

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.602 -3.946 -2.969
{\rm log}_{10}(\tau_{AGN})\, 1.043 1.610 1.954

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.078 0.206 0.494
0.03-0.10 Gyr 0.102 0.489 0.846
0.10-0.33 Gyr -0.145 0.307 0.622
0.33-1.08 Gyr -0.730 -0.073 0.278
1.08-3.55 Gyr -0.655 0.052 0.519
3.55-11.68 Gyr 0.350 1.010 1.134
11.68-12.98 Gyr 0.829 1.496 2.037