HD 53367

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HD 53367
Observation data
Epoch J2000      Equinox J2000
Constellation Monoceros
Right ascension 07h 04m 25.5190s
Declination −10° 27′ 15.6135″
Apparent magnitude (V) 6.96[1]
Characteristics
Spectral type B0IV/Ve[1]
Astrometry
Proper motion (μ) RA: -3.741 mas/yr
Dec.: 1.772 mas/yr
Parallax (π)7.7682 ± 0.7854[2] mas
Distanceapprox. 420 ly
(approx. 130 pc)
Orbit[3]
PrimaryHD 53367Aa
CompanionHD 53367Ab
Period (P)183.7±0.1 days
Semi-major axis (a)1.7 AU
Eccentricity (e)0.28±0.03
Semi-amplitude (K1)
(primary)		19 km/s
Semi-amplitude (K2)
(secondary)		44 km/s
Details[4]
HD 53367Aa
Mass17.5 M☉
Radius5.4 R☉
Luminosity4600 L☉
Temperature20600 K
Age3[5] Myr
HD 53367Ab
Mass4.5±0.5[3] M☉
Other designations
BD-10 1848, HD 53367, HIP 34116, SAO 152320, GSC 05385-02103, 2MASS J07042551-1027156, [1]
HD 53367A: Gaia DR2 3046530911350220416
HD 53367B: Gaia DR2 3046530911345696256
Database references
SIMBADdata

HD 53367 is a binary star system in the constellation of Monoceros. The primary star was identified as a variable Herbig Ae/Be star in 1989.[5] Its companion, spectroscopically discovered in 2006, is a pre-main-sequence star star with an average separation of 1.7 AU.[3] The star system is embedded in the extended nebula IC 2177.

The binary HD 53367A is part of the hierarchical triple star system RST 3489, with an additional Herbig Ae/Be star HD 53367B of spectral class B1Ve with a projected separation of 0.6″. All stars in the system belong to the star-forming CMa OB1 association.[5] The Gaia early data release 3 parallax values for HD 53367A are highly discrepant though,[6] and the system may be about 1000 parsecs away, being correspondingly much more bright.[7]

Extended nebula[]

HD 53367A is a very young and gas-rich system, with most of the gas still obscuring the secondary component HD 53367Ab.[3]

References[]

  1. ^ a b c "HD 53367". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 30 March 2021.
  2. ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  3. ^ a b c d The Herbig B0e star HD 53367: circumstellar activity and evidence of binarity
  4. ^ Kobulnicky, Henry A.; Chick, William T.; Povich, Matthew S. (2019), MASS-LOSS RATES FOR O AND EARLY B STARS POWERING BOWSHOCK NEBULAE: EVIDENCE FOR BI-STABILITY BEHAVIOR, arXiv:1906.01201
  5. ^ a b c [https://www.jstor.org/stable/40679427?seq=1 Photometry of three Herbig Be stars: HD 53367, HD 200775 and HD 259431
  6. ^ Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. Gaia EDR3 record for this source at VizieR.
  7. ^ Siebenmorgen, R.; Scicluna, P.; Krełowski, J. (2018), "Far-infrared emission of massive stars", Astronomy & Astrophysics, 620: A32, arXiv:1809.06658, doi:10.1051/0004-6361/201833546, S2CID 119202458
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