Astronomy:HD 53367

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Short description: Binary star system in the constellation Monoceros
HD 53367
V750MonLightCurve.png
A visual band light curve for V750 Monocerotis, adapted from Pogodin et al. (2006)[1]
Observation data
{{#ifeq:J2000|J2000.0 (ICRS)|Epoch J2000.0      Equinox J2000.0 (ICRS)| [[History:Epoch|Epoch J2000]]      [[Astronomy:Equinox (celestial coordinates)|Equinox J2000}}
Constellation Monoceros
HD 53367A
Right ascension  07h 04m 25.5311s[2]
Declination −10° 27′ 15.753″[2]
Apparent magnitude (V) 7.36[3]
HD 53367B
Right ascension  07h 04m 25.4868s[4]
Declination −10° 27′ 15.400″[4]
Apparent magnitude (V) 8.41[3]
Characteristics
HD 53367A
Spectral type B0IV/Ve[5]
HD 53367B
Spectral type B1Ve[6]
Astrometry
HD 53367A
Proper motion (μ) RA: −3.741[2] mas/yr
Dec.: +1.772[2] mas/yr
Parallax (π)0.8199 ± 0.2114[2] mas
Distance990±50[7] pc
Orbit[7]
PrimaryHD 53367Aa
CompanionHD 53367Ab
Period (P)367.7 d
Semi-major axis (a)2.6 - 2.7 mas
Eccentricity (e)0.5
Inclination (i)53.6 - 55.3°
Semi-amplitude (K1)
(primary)		20.3 km/s
Details[7]
HD 53367Aa
Mass12.19±2.18 M☉
Radius4.2 - 4.3 R☉
Luminosity11,000 L☉
Surface gravity (log g)4.25 - 4.27 cgs
Temperature28,400 - 28,600 K
HD 53367Ab
Mass4.90±0.52 M☉
Radius2.5 - 8.0 R☉
Luminosity377 - 513 L☉
Surface gravity (log g)3.32 - 4.34 cgs
Temperature9,000 - 17,500 K
Age0.7±0.2 Myr
Other designations
BD−10 1848, HD 53367, HIP 34116, SAO 152320, GSC 05385-02103, V750 Mon, 2MASS J07042551-1027156[8]
Database references
SIMBADdata

HD 53367 is a triple star system in the constellation of Monoceros. The primary star was identified as a variable Herbig Ae/Be star in 1989.[6] Its companion, spectroscopically discovered in 2006, is a pre-main-sequence star star with an average separation of 1.7 AU.[1] 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 at a projected separation of 0.6″. All stars in the system belong to the star-forming CMa OB1 association.[6] The Hipparcos,[9] Gaia Data Release 2,[10] and Gaia Data Release 3[2] parallax values for HD 53367A are highly discrepant, but the system is thought to be about 1,000 parsecs away.[11][7]

Extended nebula

HD 53367 lies at the centre of IC 2177

HD 53367A is a very young and gas-rich system, with most of the gas still obscuring the secondary component HD 53367Ab.[1]

References

  1. ↑ 1.0 1.1 1.2 Pogodin, M. A.; Malanushenko, V. P.; Kozlova, O. V.; Tarasova, T. N.; Franco, G. A. P. (2006). "The Herbig B0e star HD 53367: Circumstellar activity and evidence of binarity". Astronomy and Astrophysics 452 (2): 551. doi:10.1051/0004-6361:20053704. Bibcode: 2006A&A...452..551P. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  3. ↑ 3.0 3.1 Fabricius, C; Høg, E; Makarov, V. V; Mason, B. D; Wycoff, G. L; Urban, S. E (2002). "The Tycho double star catalogue". Astronomy and Astrophysics 384: 180–189. doi:10.1051/0004-6361:20011822. Bibcode: 2002A&A...384..180F. 
  4. ↑ 4.0 4.1 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  5. ↑ Tjin A Djie, H. R. E. et al. (August 2001). "The stellar composition of the star formation region CMa R1 - II. Spectroscopic and photometric observations of nine young stars". Monthly Notices of the Royal Astronomical Society 325 (4): 1441–1457. doi:10.1046/j.1365-8711.2001.04541.x. Bibcode: 2001MNRAS.325.1441T. 
  6. ↑ 6.0 6.1 6.2 Halbedel, Elaine M. (1989). "Photometry of Three Herbig be Stars: HD 53367, HD 200775, and HD 259431". Publications of the Astronomical Society of the Pacific 101: 1004. doi:10.1086/132567. Bibcode: 1989PASP..101.1004H. 
  7. ↑ 7.0 7.1 7.2 7.3 Zarrilli, Sebastian A.; Kraus, Stefan; Kreplin, Alexander; Monnier, John D.; Gardner, Tyler; Mérand, Antoine; Morrell, Sam; Davies, Claire L. et al. (2022). "Characterising the orbit and circumstellar environment of the high-mass binary MWC 166 A". Astronomy and Astrophysics 665: A146. doi:10.1051/0004-6361/202243957. Bibcode: 2022A&A...665A.146Z. 
  8. ↑ "HD 53367". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+53367. 
  9. ↑ Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V. 
  10. ↑ Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G.  Gaia DR2 record for this source at VizieR.
  11. ↑ Siebenmorgen, R.; Scicluna, P.; Krełowski, J. (2018), "Far-infrared emission of massive stars", Astronomy & Astrophysics 620: A32, doi:10.1051/0004-6361/201833546, Bibcode: 2018A&A...620A..32S 



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