J15352+3447

GALEXJ15352+3447  ·  Culpan knownhsd

χ²/N = 0.97

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]39694 ± 741
log g5.744 ± 0.077
log n(He)/n(H)-3.623 ± 0.504
reduced χ²0.973 over 640 points
radial velocity-63.0 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 18:31:47

Fit — Lei (TLUSTY)

Teff [K]38230 ± 420
log g5.570 ± 0.050
log n(He)/n(H)-3.440 ± 0.340
gridsLei et al. 2018, ApJ 868, 70
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

cosmic rays18 pixels cancelled
source filespec-57077-HD153027N364816B01_sp07-235.fits.gz

Gaia astrometry

Gaia DR3 source1374058963973357696
parallax [mas]0.6368 ± 0.0354
G15.036
Gabs4.069
μα [mas/yr]-1.998
μδ [mas/yr]-11.704
l, b55.615, 54.307

Published (Culpan et al. 2022)

class (Culpan)sdOB
class (SIMBAD)sdB
Teff [K]38575 ± 338
log g5.70 ± 0.04
log y-3.02 ± 0.10
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-1.02-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-0.91-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-0.86-40.0, 31.64.2-43.0, 43.0
Hε3970.07-0.83-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-0.82-20.0, 26.24.0-31.8, 32.0
Hη3835.38-0.81-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-0.80-16.0, 16.03.9-15.6, 16.7
Hι3770.63-0.79-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-0.98-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-0.94-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-0.85-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-1.03-15.0, 15.05.1-15.0, 15.0