J14451+1413sdB
14:45:10.27 14:13:44.94 · Culpan hotsd
outside the grid χ²/N = 1.00
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] | 47950 ± 953 |
| log g | 7.114 ± 0.113 |
| log n(He)/n(H) | -3.602 ± 0.304 |
| reduced χ² | 1.002 over 744 points |
| radial velocity | -114.0 km s−1 |
| resolution (FWHM) | 2.50 Å |
| lines fitted | 15 |
| grids | HE-0.041.fits HE-0.125.fits HE-0.300.fits HE-0.550.fits +9 more |
| settled | outside the grid |
| fitted | 04/09/2026 18:31:27 |
Fit — Lei (TLUSTY)
| Teff [K] | 57000 ± 3130 |
| log g | 6.520 ± 0.070 |
| log n(He)/n(H) | -2.610 ± 0.000 |
| grids | Lei et al. 2020, ApJ 889, 117 SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid |
Observation
| S/N (classifier) | 47.7 |
| source file | spec-57136-HD145035N124702M01_sp16-178.fits.gz |
Gaia astrometry
| Gaia DR3 source | 1185738013981539840 |
| parallax [mas] | 1.2457 ± 0.0542 |
| G | 16.347 |
| BP − RP | -0.504 |
| Gabs | 6.824 |
| μα [mas/yr] | -12.158 |
| μδ [mas/yr] | -4.975 |
| RUWE | 1.003 |
| l, b | 12.720, 60.540 |
| selection | f_plx |
Classifier
NEW
auto: contrast 0.01, within the 0.18 a subdwarf reaches at 38 kK, Mg I b suggests a companion but Ca II does not (0.1 sigma)
Fitted lines
| line | λ [Å] | shift [Å] | continuum at | ±avg | fitted over |
| Hβ | 4861.32 | -1.85 | -40.0, 40.0 | 5.0 | -45.0, 45.0 |
| Hγ | 4340.46 | -1.65 | -40.0, 36.8 | 4.5 | -43.0, 43.0 |
| Hδ | 4101.73 | -1.56 | -40.0, 31.6 | 4.2 | -43.0, 43.0 |
| Hε | 3970.07 | -1.51 | -28.0, 30.0 | 4.1 | -30.0, 35.0 |
| Hζ | 3889.05 | -1.48 | -20.0, 26.2 | 4.0 | -31.8, 32.0 |
| Hη | 3835.38 | -1.46 | -20.0, 14.6 | 4.0 | -20.7, 21.8 |
| Hθ | 3797.90 | -1.44 | -16.0, 16.0 | 3.9 | -15.6, 16.7 |
| Hι | 3770.63 | -1.43 | -13.0, 13.0 | 3.9 | -11.7, 11.6 |
| He II 4686 | 4685.70 | -1.78 | -11.9, 11.9 | 4.9 | -15.0, 13.8 |
| He II 5412 | 5411.52 | -2.06 | -15.0, 15.0 | 5.6 | -15.0, 15.0 |
| He II 4542 | 4541.59 | -1.73 | -15.0, 20.0 | 4.7 | -20.0, 20.0 |
| He II 4200 | 4199.84 | -1.60 | -23.5, 33.8 | 4.3 | -20.0, 20.0 |
| He I 4472 | 4471.60 | -1.70 | -15.0, 15.0 | 4.6 | -15.0, 15.0 |
| He I 4026 | 4026.29 | -1.53 | -24.2, 15.0 | 4.2 | -15.0, 15.0 |
| He I 4922 | 4921.93 | -1.87 | -15.0, 15.0 | 5.1 | -15.0, 15.0 |