HD 90132

In today's world, HD 90132 has become a topic of great relevance and interest to a wide variety of people. Whether in the academic, professional or personal field, HD 90132 awakens the curiosity and attention of many people globally. Throughout history, HD 90132 has been the object of study, debate and reflection, and continues to be a topical and relevant topic in today's society. In this article, we will explore in detail and comprehensively the impact and importance of HD 90132, as well as its implications in various areas of daily life.

HD 90132
Location of HD 90132 in red
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Antlia
Right ascension 10h 23m 29.29608s[1]
Declination −38° 00′ 35.4255″[1]
Apparent magnitude (V) 5.33±0.01[2]
Characteristics
Spectral type A8 V[3]
B−V color index +0.25[4]
Astrometry
Radial velocity (Rv)17±4.2[5] km/s
Proper motion (μ) RA: −158.833 mas/yr[1]
Dec.: −53.705 mas/yr[1]
Parallax (π)24.2034±0.0725 mas[1]
Distance134.8 ± 0.4 ly
(41.3 ± 0.1 pc)
Absolute magnitude (MV)+2.25[6]
Details
Mass1.69±0.27[7] M☉
Radius1.87±0.87[7] R☉
Luminosity9.79±0.06[8] L☉
Surface gravity (log g)4.15[9] cgs
Temperature7,737±263[9] K
Metallicity −0.13[10] dex
Rotational velocity (v sin i)270[11] km/s
Age70[12] Myr
Other designations
64 G. Antliae[13], CD−37°6509, CPD−37°4123, FK5 1269, GC 14281, HD 90132, HIP 50888, HR 4086, SAO 201346[14]
Database references
SIMBADdata

HD 90132 (HR 4086) is a solitary[15] white hued star located in the southern constellation Antlia. It has an apparent magnitude of 5.33,[2] making it one of the brighter members of this generally faint constellation. The star is relatively close at a distance of 135 light years[1] but is receding with a heliocentric radial velocity of 17 km/s.[5]

HD 90132 has a stellar classification of A8 V,[3] indicating that it is an ordinary A-type main-sequence star. At present it has 1.69 times the mass of the Sun and 1.87 times the radius of the Sun.[7] Despite a young age of 70 million years,[12] the star has a lower surface gravity than expected.[9] This is due to the equator being 18% larger than the poles,[16] which is due to a high projected rotational velocity of 270 km/s.[11] Nevertheless, it shines with a luminosity of 9.8 L☉[8] from its photosphere at an effective temperature of 7,737 K.[9] HD 90132 is slightly metal deficient with a metallicity 74% that of Sun.[10]

This star was observed for infrared excess suggesting the presence of a circumstellar disk, but as of 2017 no excess have been found.[17]

References

  1. ^ a b c d e 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. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  2. ^ a b Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27 – L30. Bibcode:2000A&A...355L..27H. ISSN 0004-6361.
  3. ^ a b Houk, N. (1982). Michigan Catalogue of Two-dimensional Spectral Types for the HD stars. Volume_3. Declinations −40° to −26°. Bibcode:1982mcts.book.....H.
  4. ^ Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewski, W. Z. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99–110. Bibcode:1966CoLPL...4...99J.
  5. ^ a b Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. eISSN 1562-6873. ISSN 1063-7737. S2CID 119231169.
  6. ^ Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. eISSN 1562-6873. ISSN 1063-7737. S2CID 255204555.
  7. ^ a b c Stassun, Keivan G.; et al. (9 September 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. ISSN 0004-6256.
  8. ^ a b 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.
  9. ^ a b c d David, Trevor J.; Hillenbrand, Lynne A. (12 May 2015). "The Ages of Early-type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. eISSN 1538-4357.
  10. ^ a b Netopil, Martin (4 May 2017). "Metallicity calibrations for dwarf stars and giants in the Geneva photometric system". Monthly Notices of the Royal Astronomical Society. 469 (3): 3042–3055. arXiv:1705.00883. Bibcode:2017MNRAS.469.3042N. doi:10.1093/mnras/stx1077. eISSN 1365-2966. ISSN 0035-8711.
  11. ^ a b Huang, Su-Shu (September 1953). "A Statistical Study of the Rotation of the Stars". The Astrophysical Journal. 118: 285. Bibcode:1953ApJ...118..285H. doi:10.1086/145751. eISSN 1538-4357. ISSN 0004-637X.
  12. ^ a b Vican, Laura (2 May 2012). "Age Determination for 346 Nearby Stars in the Herschel DEBRIS Survey". The Astronomical Journal. 143 (6): 135. arXiv:1203.1966. Bibcode:2012AJ....143..135V. doi:10.1088/0004-6256/143/6/135. eISSN 1538-3881. ISSN 0004-6256.
  13. ^ Gould, Benjamin Apthorp (January 1879). "Uranometria Argentina : brillantez y posicion de las estrellas fijas, hasta la septima magnitud, comprendidas dentro de cien grados del polo austral : con atlas". Resultados del Observatorio Nacional Argentino. 1. Bibcode:1879RNAO....1.....G.
  14. ^ "HD 90132". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 20 September 2015.
  15. ^ Eggleton, P. P.; Tokovinin, A. A. (11 September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869–879. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x. eISSN 1365-2966. ISSN 0035-8711.
  16. ^ van Belle, Gerard T. (14 March 2012). "Interferometric observations of rapidly rotating stars". The Astronomy and Astrophysics Review. 20 (1): 51. arXiv:1204.2572. Bibcode:2012A&ARv..20...51V. doi:10.1007/s00159-012-0051-2. eISSN 1432-0754. ISSN 0935-4956.
  17. ^ Meshkat, Tiffany; Mawet, Dimitri; Bryan, Marta L.; Hinkley, Sasha; Bowler, Brendan P.; Stapelfeldt, Karl R.; Batygin, Konstantin; Padgett, Deborah; Morales, Farisa Y.; Serabyn, Eugene; Christiaens, Valentin; Brandt, Timothy D.; Wahhaj, Zahed (21 November 2017). "A Direct Imaging Survey ofSpitzer-detected Debris Disks: Occurrence of Giant Planets in Dusty Systems". The Astronomical Journal. 154 (6): 245. arXiv:1710.04185. Bibcode:2017AJ....154..245M. doi:10.3847/1538-3881/aa8e9a. eISSN 1538-3881.