J13470+1111sdB
PG1344+114 · 13:47:00.48 11:11:23.93 · Culpan knownhsd
χ²/N = 0.98
Spectrum
shaded: the intervals the fit used · │ a cancelled pixeldrag on either panel to zoom · dbl-click or Esc to reset · arrows to pan
The whole reduced spectrum above, the region marked on it below. Shaded bands are the intervals the fit used; a tick under the axis marks a pixel the rejection mask cancelled.
Line-profile fit — Bamberg
Results and provenance
Fit — Bamberg
| Teff [K] | 23692 ± 224 |
| log g | 5.606 ± 0.027 |
| log n(He)/n(H) | -3.442 ± 0.103 |
| reduced χ² | 0.980 over 655 points |
| radial velocity | -75.0 km s−1 |
| resolution (FWHM) | 2.50 Å |
| lines fitted | 13 |
| grids | HE-0.041.fits HE-0.125.fits HE-0.300.fits HE-0.550.fits +9 more |
| fitted | 04/09/2026 18:31:06 |
Fit — Lei (TLUSTY)
| Teff [K] | 23510 ± 40 |
| log g | 5.600 ± 0.010 |
| log n(He)/n(H) | -3.000 ± 0.000 |
| grids | Lei et al. 2020, ApJ 889, 117 SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid |
Observation
| cosmic rays | 3 pixels cancelled |
| S/N (classifier) | 34.2 |
| source file | spec-58550-HD134851N094247B01_sp15-158.fits.gz |
Gaia astrometry
| Gaia DR3 source | 3727881843124118400 |
| parallax [mas] | 1.0153 ± 0.0413 |
| G | 14.939 |
| Gabs | 5.017 |
| μα [mas/yr] | -12.883 |
| μδ [mas/yr] | 2.832 |
| l, b | 344.940, 69.393 |
Published (Culpan et al. 2022)
| class (Culpan) | sdB |
| class (SIMBAD) | sdB |
| Teff [K] | 23163 ± 185 |
| log g | 5.30 ± 0.02 |
| log y | -3.40 ± 0.07 |
| reference | 2021ApJS..256...28L |
Classifier
AGREES
fitted Teff 23163 logg 5.3 logY -3.4 2021ApJS..256...28L
auto: contrast 0.12, within the 0.36 a subdwarf reaches at 24 kK, Ca II 8662/8542 = 17.8 -- the star's own Paschen lines, not a companion
Fitted lines
| line | λ [Å] | shift [Å] | continuum at | ±avg | fitted over |
| Hβ | 4861.32 | -1.22 | -40.0, 40.0 | 5.0 | -45.0, 45.0 |
| Hγ | 4340.46 | -1.09 | -40.0, 36.8 | 4.5 | -43.0, 43.0 |
| Hδ | 4101.73 | -1.03 | -40.0, 31.6 | 4.2 | -43.0, 43.0 |
| Hε | 3970.07 | -0.99 | -28.0, 30.0 | 4.1 | -30.0, 35.0 |
| Hζ | 3889.05 | -0.97 | -20.0, 26.2 | 4.0 | -31.8, 32.0 |
| Hη | 3835.38 | -0.96 | -20.0, 14.6 | 4.0 | -20.7, 21.8 |
| Hθ | 3797.90 | -0.95 | -16.0, 16.0 | 3.9 | -15.6, 16.7 |
| Hι | 3770.63 | -0.94 | -13.0, 13.0 | 3.9 | -11.7, 11.6 |
| Hκ | 3750.15 | -0.94 | -10.0, 10.0 | 3.9 | -7.4, 8.7 |
| He II 4686 | 4685.70 | -1.17 | -11.9, 11.9 | 4.9 | -15.0, 13.8 |
| He I 4472 | 4471.60 | -1.12 | -15.0, 15.0 | 4.6 | -15.0, 15.0 |
| He I 4026 | 4026.29 | -1.01 | -24.2, 15.0 | 4.2 | -15.0, 15.0 |
| He I 4922 | 4921.93 | -1.23 | -15.0, 15.0 | 5.1 | -15.0, 15.0 |