J14259+2847

SDSSJ142559.17+284715.2  ·  Culpan knownhsd

χ²/N = 0.99

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

profile fit on the Bamberg grid
Observed spectrum in black, model in red, offset by line. Balmer series left, helium right.

Results and provenance

Fit — Bamberg

Teff [K]33184 ± 482
log g5.540 ± 0.060
log n(He)/n(H)-1.932 ± 0.081
reduced χ²0.993 over 637 points
radial velocity58.0 km s−1
resolution (FWHM)2.50 Å
lines fitted12
gridsHE-0.041.fits
HE-0.125.fits
HE-0.300.fits
HE-0.550.fits
+9 more
fitted04/09/2026 18:31:21

Fit — Lei (TLUSTY)

Teff [K]34250 ± 200
log g5.640 ± 0.020
log n(He)/n(H)-1.780 ± 0.050
gridsLei et al. 2019, ApJ 881, 135
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

cosmic rays3 pixels cancelled
source filespec-57844-HD142214N292211M02_sp08-016.fits.gz

Gaia astrometry

Gaia DR3 source1283953333241515520
parallax [mas]0.3150 ± 0.0515
G16.714
Gabs4.279
μα [mas/yr]-0.954
μδ [mas/yr]-25.168
l, b43.015, 69.090

Published (Culpan et al. 2022)

class (Culpan)sdOB
class (SIMBAD)sdB+?
Teff [K]35112 ± 191
log g5.78 ± 0.03
log y-1.94 ± 0.05
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.320.94-40.0, 40.05.0-45.0, 45.0
Hγ4340.460.84-40.0, 36.84.5-43.0, 43.0
Hδ4101.730.79-40.0, 31.64.2-43.0, 43.0
Hε3970.070.77-28.0, 30.04.1-30.0, 35.0
Hζ3889.050.75-20.0, 26.24.0-31.8, 32.0
Hη3835.380.74-20.0, 14.64.0-20.7, 21.8
Hθ3797.900.73-16.0, 16.03.9-15.6, 16.7
Hι3770.630.73-13.0, 13.03.9-11.7, 11.6
He II 46864685.700.91-11.9, 11.94.9-15.0, 13.8
He I 44724471.600.87-15.0, 15.04.6-15.0, 15.0
He I 40264026.290.78-24.2, 15.04.2-15.0, 15.0
He I 49224921.930.95-15.0, 15.05.1-15.0, 15.0