HD 73882
HD 73882 is a visual binary system with the components separated by 0.6″ and a combined spectral class of O8.[6] One of stars is an eclipsing binary system. The period of variability is listed as both 2.9199 days and 20.6 days, possibly due to the secondary being a spectroscopic binary star.[7][8]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Vela |
| Right ascension | 08h 39m 09.5341s |
| Declination | −40° 25′ 09.2608″ |
| Apparent magnitude (V) | 7.19 - 7.29[1] |
| Characteristics | |
| Evolutionary stage | subgiant |
| Spectral type | O8.5IV[2] |
| Apparent magnitude (g) | 7.356[3] |
| Astrometry | |
| HD 73882 | |
| Radial velocity (Rv) | 3.56±0.13[4] km/s |
| Proper motion (μ) | RA: -4.71±0.05 mas/yr[3] Dec.: 3.44±0.06 mas/yr[3] |
| Parallax (π) | 1.34 ± 0.06 mas[3] |
| Distance | 2,400 ± 100 ly (750 ± 30 pc) |
| Absolute magnitude (MV) | 2.46±0.17[5] |
| Details | |
| Metallicity [Fe/H] | −0.60±0.10[4] dex |
| Other designations | |
2MASS J08390953-4025092, CD-39 4631, HIP 42433, GSC 07666-01830, PPM 313370, NX Vel | |
| HD 73882A: TYC 7666-1830-1, Gaia DR2 5528383187882877312 | |
| HD 73882B: TYC 7666-1830-2, Gaia DR2 5528383192183392768 | |
| Database references | |
| SIMBAD | data |
The system lies in the constellation of Vela about 2,400 light years away from the Sun and is a member of the open cluster Ru 64.[9]
Circumstellar nebula
The star system, located behind the Vela Supernova Remnant,[10] is obscured by the translucent nebula Gum 14, located near the Vela Molecular Ridge nebulae complex. The nebula is illuminated by this star system and probably has a close physical association with it, together with brighter reflection nebula NGC 2626. The nebulae are rich in hydrogen (including deuterated hydrogen)[11] and also contain detectable amounts of sodium, carbon monoxide, and other carbon compounds,[2] including polycyclic aromatic hydrocarbons,[12] and thiols.[13] The nebula associated with the HD 73882 is one of the few exhibiting emission from compounds containing three carbon atoms.[14] The nebula has unusually low levels of oxygen compared to the average interstellar medium.[15]
References
- "NX Velorum", International Variable Star Index, retrieved 2022-01-03
- Snow, T. P.; Rachford, B. L.; Tumlinson, J.; Shull, J. M.; Welty, D. E.; Blair, W. P.; Ferlet, R.; Friedman, S. D.; Gry, C.; Jenkins, E. B.; Lecavelier, A.; Lemoine, M.; Morton, D. C.; Savage, B. D.; Sembach, K. R.; Vidal-Madjar, A.; York, D. G.; Andersson, B-G; Feldman, P. D.; Moos, H. W. (1999), "[ITAL]Far Ultraviolet Spectroscopic Explorer[/ITAL] Observations of Molecular Hydrogen in Translucent Interstellar Clouds: The Line of Sight toward HD 73882", The Astrophysical Journal, 538: L65–L68, arXiv:astro-ph/0005090, doi:10.1086/312791, S2CID 119349223
- 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.
- De Cia, Annalisa; Jenkins, Edward B.; Fox, Andrew J.; Ledoux, Cédric; Ramburuth-Hurt, Tanita; Konstantopoulou, Christina; Petitjean, Patrick; Krogager, Jens-Kristian (2021), "Large metallicity variations in the Galactic interstellar medium", Nature, 597 (7875): 206–208, arXiv:2109.03249, Bibcode:2021Natur.597..206D, doi:10.1038/s41586-021-03780-0, PMID 34497395, S2CID 237439613
- Bagnulo, Stefano; Cox, Nick L. J.; Cikota, Aleksandar; Siebenmorgen, Ralf; Voshchinnikov, Nikolai V.; Patat, Ferdinando; Smith, Keith T.; Smoker, Jonathan V.; Taubenberger, Stefan; Kaper, Lex; Cami, Jan; the LIPS collaboration (2017), "Large Interstellar Polarisation Survey (LIPS)", Astronomy & Astrophysics, 608: A146, arXiv:1710.02439, doi:10.1051/0004-6361/201731459, S2CID 119431016
- Shull, J. Michael; Danforth, Charles W. (2019), "Distances to Galactic OB Stars: Photometry versus Parallax", The Astrophysical Journal, 882 (2): 180, arXiv:1907.13148, Bibcode:2019ApJ...882..180S, doi:10.3847/1538-4357/ab357d, S2CID 199000762
- Sota, A.; Apellániz, J. Maíz; Morrell, N. I.; Barbá, R. H.; Walborn, N. R.; Gamen, R. C.; Arias, J. I.; Alfaro, E. J. (2013), "The Galactic O-Star Spectroscopic Survey (Gosss). Ii. Bright Southern Stars", The Astrophysical Journal Supplement Series, 211: 10, arXiv:1312.6222, doi:10.1088/0067-0049/211/1/10, S2CID 118847528
- Sana, H.; Le Bouquin, J.-B.; Lacour, S.; Berger, J.-P.; Duvert, G.; Gauchet, L.; Norris, B.; Olofsson, J.; Pickel, D.; Zins, G.; Absil, O.; De Koter, A.; Kratter, K.; Schnurr, O.; Zinnecker, H. (2014), "Southern Massive Stars at High Angular Resolution: Observational Campaign and Companion Detection", The Astrophysical Journal Supplement Series, 215 (1): 15, arXiv:1409.6304, Bibcode:2014ApJS..215...15S, doi:10.1088/0067-0049/215/1/15, S2CID 53500788
- Kharchenko, N. V.; Piskunov, A. E.; Röser, S.; Schilbach, E.; Scholz, R.-D. (2005), "Astrophysical parameters of Galactic open clusters", Astronomy and Astrophysics, 438 (3): 1163–1173, Bibcode:2005A&A...438.1163K, doi:10.1051/0004-6361:20042523, S2CID 9079873
- Kameswara Rao, N.; Lambert, David L.; Reddy, Arumalla B. S.; Gupta, Ranjan; Muneer, S.; Singh, Harinder P. (2017), "Unveiling Vela - Time Variability of Interstellar Lines in the Direction of the Vela Supernova Remnant II. Na D and Ca II", Monthly Notices of the Royal Astronomical Society: stx139, arXiv:1701.04349, doi:10.1093/mnras/stx139
- Ferlet, R.; André, M.; Hébrard, G.; Lecavelier Des Etangs, A.; Lemoine, M.; Pineau Des Forêts, G.; Roueff, E.; Rachford, B. L.; Shull, J. M.; Snow, T. P.; Tumlinson, J.; Vidal-Madjar, A.; York, D. G.; Moos, H. W. (2000), "[ITAL]Far Ultraviolet Spectroscopic Explorer[/ITAL] Observations of the HD Molecule toward HD 73882", The Astrophysical Journal, 538: L69–L72, arXiv:astro-ph/0006039, doi:10.1086/312799, S2CID 16667758
- Shaw, Gargi; Ferland, G. J. (2021), "Role of Polycyclic Aromatic Hydrocarbons on the Cosmic-Ray ionization rate in the Galaxy", The Astrophysical Journal, 908 (2): 138, arXiv:2101.03732, Bibcode:2021ApJ...908..138S, doi:10.3847/1538-4357/abdab2, S2CID 231573427
- Zhao, D.; Galazutdinov, G. A.; Linnartz, H.; Krełowski, J. (2015), "Mercapto radical (SH) in translucent interstellar clouds", Astronomy & Astrophysics, 579: L1, Bibcode:2015A&A...579L...1Z, doi:10.1051/0004-6361/201526488
- Schmidt, M. R.; Krełowski, J.; Galazutdinov, G. A.; Zhao, D.; Haddad, M. A.; Ubachs, W.; Linnartz, H. (2014), "Detection of vibronic bands of C3 in a translucent cloud towards HD 169454", Monthly Notices of the Royal Astronomical Society, 441 (2): 1134–1146, Bibcode:2014MNRAS.441.1134S, doi:10.1093/mnras/stu641
- Zuo, Wenbo; Li, Aigen; Zhao, Gang (2021), "Interstellar Extinction and Elemental Abundances: Individual Sight Lines", The Astrophysical Journal Supplement Series, 257 (2): 63, arXiv:2111.03903, Bibcode:2021ApJS..257...63Z, doi:10.3847/1538-4365/ac2cc3, S2CID 243847325
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