2025grm results

Information

Transient
Name:AT2025grm
Right ascension: 21h24m27.86s
Declination:-49d16m42.54s
Discovery Date:April 2, 2025, 6:43 p.m.
Classification:None
Redshift:None
MW E(B-V):0.027
Host
Name:2025grm
Right ascension: 21h24m26.30s
Declination:-49d16m48.69s
Redshift:0.030878
Photometric Redshift:None
 

Cutout Download Report

Downloaded Unavailable
2MASS_H
2MASS_J
2MASS_K
WISE_W1
WISE_W2
WISE_W3
WISE_W4
GALEX_NUV
GALEX_FUV
DES_g
DES_r
DES_z
PanSTARRS_g
PanSTARRS_r
PanSTARRS_i
PanSTARRS_z
PanSTARRS_y
SDSS_i
SDSS_r
SDSS_u
SDSS_z
SDSS_g
DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 8.3
Transient MWEBV processed 0.04
Host match processed 0.81
Host information processed 0.09
Host MWEBV processed 0.1
Global aperture construction processed 0.48
Global aperture photometry processed 2.28
Validate global photometry processed 7.11
Global host SED inference processed 531.8
Local aperture photometry processed 2.24
Validate local photometry processed 0.02
Local host SED inference processed 448.2
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):21h24m27.86s, -49d16m42.54s
semi major axis, semi minor axis (arcsec):3.24, 3.24
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 35.17 0.77 20.035 0.024 AB
DES_r 68.97 1.37 19.303 0.022 AB
DES_z 110.39 2.56 18.793 0.025 AB
2MASS_J 133.7 68.13 17.690 0.553 Vega
2MASS_H 161.4 98.64 17.013 0.664 Vega
2MASS_K 72.93 116.18 17.405 1.730 Vega

Aperture details

RA, DEC (J2000):21h24m26.31s, -49d16m48.79s
semi major axis, semi minor axis (arcsec):15.91, 9.99
angle (degrees, anti-clockwise from east):48.46
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 13.01 5.31 21.114 0.443 AB
GALEX_NUV 30.74 4.14 20.181 0.146 AB
DES_g 2717.35 3.44 15.315 0.001 AB
DES_r 6142.34 6.24 14.429 0.001 AB
DES_z 10818.91 18.07 13.815 0.002 AB
2MASS_J 16353.52 274.45 12.471 0.018 Vega
2MASS_H 19487.02 395.09 11.808 0.022 Vega
2MASS_K 17147.77 465.4 11.477 0.029 Vega
WISE_W1 6563.46 90.84 11.658 0.015 Vega
WISE_W2 3636.93 85.2 11.659 0.025 Vega
WISE_W3 1045.62 273.35 11.178 0.284 Vega
WISE_W4 1105.35 672.52 9.671 0.661 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.456 8.681 8.843
{\rm log}_{10}({\rm SFR}) -2.025 -1.397 -0.755
{\rm log}_{10}({\rm sSFR}) -10.759 -10.102 -9.289
{\rm stellar\ age} 4.752 7.356 9.198

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.698 -1.138 -0.549
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.752 -0.860 0.241

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.573 0.948 1.300
\delta -0.469 -0.157 0.126
\tau_1/\tau_2 0.662 1.014 1.372
Q_{PAH} 0.426 1.813 4.396
U_{min} 2.794 7.774 14.439
{\rm log}_{10}(\gamma_e)\, -3.389 -2.470 -0.931

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.842 -1.606 -0.209
{\rm log}_{10}(\tau_{AGN})\, 0.936 1.365 1.803

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.126 -1.337 -0.937
0.03-0.10 Gyr -2.279 -1.470 -0.687
0.10-0.33 Gyr -2.640 -1.684 -0.970
0.33-1.10 Gyr -2.807 -1.711 -1.108
1.10-3.63 Gyr -2.688 -1.539 -1.171
3.63-12.01 Gyr -2.021 -1.279 -1.026
12.01-13.34 Gyr -1.993 -1.216 -0.521

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.692 10.773 10.861
{\rm log}_{10}({\rm SFR}) -3.422 -1.770 -1.093
{\rm log}_{10}({\rm sSFR}) -14.160 -12.539 -11.851
{\rm stellar\ age} 7.983 10.773 12.655

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.804 -0.585 -0.431
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.522 -0.716 0.097

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.146 0.243 0.398
\delta -0.841 -0.491 -0.191
\tau_1/\tau_2 0.477 0.921 1.364
Q_{PAH} 0.215 0.664 1.735
U_{min} 3.393 9.173 17.003
{\rm log}_{10}(\gamma_e)\, -3.258 -2.124 -1.300

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.604 -4.001 -3.138
{\rm log}_{10}(\tau_{AGN})\, 1.087 1.619 1.971

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -4.732 -1.996 -1.189
0.03-0.10 Gyr -4.309 -1.933 -1.083
0.10-0.33 Gyr -5.206 -2.249 -1.130
0.33-1.10 Gyr -4.763 -2.180 -0.897
1.10-3.63 Gyr -3.520 -1.555 -0.122
3.63-12.01 Gyr -1.552 0.646 0.974
12.01-13.34 Gyr 0.641 1.687 1.984