Global InformationQZ Carinae information
  QZ Carinae
Credit: ESO | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Carina |
| Right ascension | 10h 44m 22.91114s[1] |
| Declination | −59° 59′ 35.9550″[1] |
| Apparent magnitude (V) | 6.24[2] (6.16 - 6.49[3]) |
| Characteristics | |
| Spectral type | A1: O9.7I A2: B2V B1: O8III B2: O9V[4] |
| U−B color index | −0.84[2] |
| B−V color index | +0.13[2] |
| Variable type | β Lyr[3] |
| Astrometry | |
| Radial velocity (Rv) | −2.80[5] km/s |
| Proper motion (μ) | RA: −6.63[1] mas/yr Dec.: 2.48[1] mas/yr |
| Parallax (π) | 1.67 ± 0.40 mas[1] |
| Distance | 2,300[4] pc |
| Orbit[4] | |
| Primary | A |
| Companion | B |
| Period (P) | ~25.4 yr |
| Semi-major axis (a) | ~35 AU |
| Eccentricity (e) | 0.0 |
| Inclination (i) | 60° |
| Orbit[4] | |
| Primary | A1 |
| Companion | A2 |
| Period (P) | 20.72 days |
| Semi-major axis (a) | 116 R☉ |
| Eccentricity (e) | 0.34 |
| Inclination (i) | 60° |
| Argument of periastron (ω) (secondary) | 141° |
| Orbit[4] | |
| Primary | B1 |
| Companion | B2 |
| Period (P) | 5.999 days |
| Semi-major axis (a) | 49 R☉ |
| Eccentricity (e) | 0.1 |
| Inclination (i) | 86° |
| Argument of periastron (ω) (secondary) | ~20° |
| Details | |
| A1 | |
| Mass | 69.8[6] M☉ |
| Radius | 22.1[7] R☉ |
| Luminosity | 400,000[7] L☉ |
| Surface gravity (log g) | 3.2[7] cgs |
| Temperature | 29,564[6] K |
| A2 | |
| Mass | 8.85[6] M☉ |
| Radius | 3.0[7] R☉ |
| Luminosity | 1,260[7] L☉ |
| Surface gravity (log g) | 4.3[7] cgs |
| Temperature | 23,446[6] K |
| B1 | |
| Mass | 25.5[6] M☉ |
| Radius | 13.7[7] R☉ |
| Luminosity | 200,000[7][4] L☉ |
| Surface gravity (log g) | 3.6[7] cgs |
| Temperature | 29,687[6] K |
| B2 | |
| Mass | 33.2[6] M☉ |
| Radius | 7.53[7] R☉ |
| Luminosity | 50,100[7] L☉ |
| Surface gravity (log g) | 3.92[7] cgs |
| Temperature | 32,979[6] K |
| Other designations | |
QZ Car, HD 93206, HIP 52526, CD−59 3287, GC 14784, SAO 238414, GSC 08626-02523 | |
| Database references | |
| SIMBAD | data |
QZ Carinae (HD 93206) is a multiple star system in the constellation Carina. It is the brightest member of the loose open cluster Collinder 228 and one of the brightest stars in the Carina Nebula. The apparent magnitude is variable from +6.16 to +6.49 with a period of 6 days.
- ^ a b c d e Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.
- ^ a b c Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237: 0. Bibcode:2002yCat.2237....0D.
- ^ a b Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007–2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1: 02025. Bibcode:2009yCat....102025S.
- ^ a b c d e f Parkin, E. R.; Broos, P. S.; Townsley, L. K.; Pittard, J. M.; et al. (2011). "X-ray emission from the double-binary OB-star system QZ Car (HD 93206)". The Astrophysical Journal Supplement. 194 (1): article id. 8, 11 pp. arXiv:1103.0794. Bibcode:2011ApJS..194....8P. doi:10.1088/0067-0049/194/1/8. S2CID 119292907.
- ^ Pourbaix, D.; Tokovinin, A. A.; Batten, A. H.; Fekel, F. C.; Hartkopf, W. I.; Levato, H.; Morrell, N. I.; Torres, G.; Udry, S. (2004). "SB9: The ninth catalogue of spectroscopic binary orbits". Astronomy and Astrophysics. 424 (2): 727–732. arXiv:astro-ph/0406573. Bibcode:2004A&A...424..727P. doi:10.1051/0004-6361:20041213. ISSN 0004-6361. S2CID 119387088.
- ^ a b c d e f g h Brož, M.; Harmanec, P.; Zasche, P.; Catalan-Hurtado, R.; Barlow, B. N.; Frondorf, W.; Wolf, M.; Drechsel, H.; Chini, R.; Nasseri, A.; Labadie-Bartz, J.; Christie, G. W.; Walker, W. S. G.; Blackford, M.; Blane, D.; Henden, A. A.; Bohlsen, T.; Božić, H.; Jonák, J. (2022). "Towards a consistent model of the hot quadruple system HD 93206 = QZ Carinæ. II. N-body model". Astronomy & Astrophysics. 666: A24. arXiv:2206.12160. Bibcode:2022A&A...666A..24B. doi:10.1051/0004-6361/202243596. S2CID 250048618.
- ^ a b c d e f g h i j k l Rainot, A.; Reggiani, M.; Sana, H.; Bodensteiner, J.; Gomez-Gonzalez, C. A.; Absil, O.; Christiaens, V.; Delorme, P.; Almeida, L. A.; Caballero-Nieves, S.; De Ridder, J.; Kratter, K.; Lacour, S.; Le Bouquin, J. -B.; Pueyo, L.; Zinnecker, H. (2020). "Carina High-contrast Imaging Project for massive Stars (CHIPS). I. Methodology and proof of concept on QZ Car (≡ HD 93206)". Astronomy and Astrophysics. 640: A15. arXiv:2006.01914. Bibcode:2020A&A...640A..15R. doi:10.1051/0004-6361/201936448. S2CID 219260368.