This is a spectroscopic binary with an orbital period of 2.3 years and eccentricity around 0.35.[10] The secondary is about 3.3 magnitudes dimmer than the primary and estimated as type B9 based on the flux of far-ultraviolet radiation.[11]
The secondary was directly detected with a magnitude difference of 3.6 at a separation of about 17 milli-arcseconds using observations from the Navy Precision Optical Interferometer.[12] This detection was significant as observations with the Hubble Space Telescope which indicated a companion star was present were not definitive.[13] With an orbit and a parallax the sum of the masses of the two stars can be determined via a dynamical parallax.[14] This eventually can yield a precise mass for the evolved giant primary star.
Beta Scuti was a latter designation of 6 Aquilae.[15]
ReferencesEdit
^ abcdefVan 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. Vizier catalog entry
^ abcdMallik, Sushma V. (December 1999), "Lithium abundance and mass", Astronomy and Astrophysics, 352: 495–507, Bibcode:1999A&A...352..495M
^ abKeenan, Philip C.; McNeil, Raymond C. (1989). "The Perkins catalog of revised MK types for the cooler stars". The Astrophysical Journal Supplement Series. 71: 245. Bibcode:1989ApJS...71..245K. doi:10.1086/191373.
^ abDucati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
^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. S2CID 119387088.
^De Medeiros, J. R.; Mayor, M. (1999). "A catalog of rotational and radial velocities for evolved stars". Astronomy and Astrophysics Supplement Series. 139 (3): 433. arXiv:astro-ph/0608248. Bibcode:1999A&AS..139..433D. doi:10.1051/aas:1999401. Vizier catalog entry
^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. S2CID 119387088.
^Parsons, Sidney B.; Ake, Thomas B. (1998). "Ultraviolet and Optical Studies of Binaries with Luminous Cool Primaries and Hot Companions. V. The Entire IUE Sample". The Astrophysical Journal Supplement Series. 119 (1): 83. Bibcode:1998ApJS..119...83P. doi:10.1086/313152.
^Hutter, D. J.; Zavala, R. T.; Tycner, C.; Benson, J. A.; Hummel, C. A.; Sanborn, J.; Franz, O. G.; Johnston, K. J. (2016). "Surveying the Bright Stars by Optical Interferometry. I. A Search for Multiplicity among Stars of Spectral Types F-K". Astrophysical Journal Supplement Series. 227 (1): 4. arXiv:1609.05254. Bibcode:2016ApJS..227....4H. doi:10.3847/0067-0049/227/1/4. S2CID 118803592.
^Parsons, S. B.; Franz, O. G.; Wassermann, L. H. (2005). "The Fine Guidance Sensor Orbit of the G4 Bright Giant HD 173764". Astronomical Journal. 129 (3): 1700. Bibcode:2005AJ....129.1700P. doi:10.1086/427853.
^Wagman, M. (August 1987). "Flamsteed's Missing Stars". Journal for the History of Astronomy. 18 (3): 212. Bibcode:1987JHA....18..209W. doi:10.1177/002182868701800305. S2CID 118445625.
October 21, 2023
beta, scuti, latinized, from, scuti, binary, star, system, southern, constellation, scutum, based, upon, annual, parallax, shift, seen, from, earth, located, approximately, light, years, from, primary, component, apparent, visual, magnitude, radiating, about, . Beta Scuti Latinized from b Scuti is a binary star system in the southern constellation Scutum Based upon an annual parallax shift of 3 56 mas as seen from Earth 1 it is located approximately 920 light years from the Sun The primary component has an apparent visual magnitude of 4 22 and is radiating about 1 270 times the luminosity of the Sun from its outer atmosphere at an effective temperature of 4 622 K 2 This yellow hued star is a G type bright giant with a stellar classification of G4 IIa 3 b ScutiLocation of b Scuti circled Observation dataEpoch J2000 Equinox J2000Constellation ScutumRight ascension 18h 47m 10 47250s 1 Declination 4 44 52 3271 1 Apparent magnitude V 4 22 2 CharacteristicsSpectral type G4IIa 3 U B color index 0 84 4 B V color index 1 09 4 AstrometryRadial velocity Rv 21 30 5 km sProper motion m RA 8 44 1 mas yr Dec 16 37 1 mas yrParallax p 3 56 0 43 mas 1 Distanceapprox 900 ly approx 280 pc Absolute magnitude MV 2 99 6 Orbit 7 PrimaryBeta Scuti ACompanionBet Scuti BPeriod P 834 daysSemi major axis a 2 8 masEccentricity e 0 350Inclination i 105 9 Longitude of the node W 288 1 Periastron epoch T 2422480 9Argument of periastron w secondary 33 9 DetailsLuminosity1 270 2 L Surface gravity log g 0 94 8 cgsTemperature4 622 2 KMetallicity Fe H 0 16 6 dexRotational velocity v sin i 7 8 9 km sOther designationsb Sct BD 04 4582 FK5 1489 GC 25730 GSC 05122 01426 HIP 92175 HR 7063 HD 173764 SAO 142618 CCDM 18472 0445Database referencesSIMBADdataThis is a spectroscopic binary with an orbital period of 2 3 years and eccentricity around 0 35 10 The secondary is about 3 3 magnitudes dimmer than the primary and estimated as type B9 based on the flux of far ultraviolet radiation 11 The secondary was directly detected with a magnitude difference of 3 6 at a separation of about 17 milli arcseconds using observations from the Navy Precision Optical Interferometer 12 This detection was significant as observations with the Hubble Space Telescope which indicated a companion star was present were not definitive 13 With an orbit and a parallax the sum of the masses of the two stars can be determined via a dynamical parallax 14 This eventually can yield a precise mass for the evolved giant primary star Beta Scuti was a latter designation of 6 Aquilae 15 References Edit a b c d e f Van Leeuwen F 2007 Validation of the new Hipparcos reduction Astronomy and Astrophysics 474 2 653 664 arXiv 0708 1752 Bibcode 2007A amp A 474 653V doi 10 1051 0004 6361 20078357 S2CID 18759600 Vizier catalog entry a b c d Mallik Sushma V December 1999 Lithium abundance and mass Astronomy and Astrophysics 352 495 507 Bibcode 1999A amp A 352 495M a b Keenan Philip C McNeil Raymond C 1989 The Perkins catalog of revised MK types for the cooler stars The Astrophysical Journal Supplement Series 71 245 Bibcode 1989ApJS 71 245K doi 10 1086 191373 a b 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 Bibcode 2002yCat 2237 0D 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 amp A 424 727P doi 10 1051 0004 6361 20041213 S2CID 119387088 a b Anderson E Francis Ch 2012 XHIP An extended hipparcos compilation Astronomy Letters 38 5 331 arXiv 1108 4971 Bibcode 2012AstL 38 331A doi 10 1134 S1063773712050015 S2CID 119257644 Vizier catalog entry Ren Shulin 2013 Hipparcos Photocentric Orbits of 72 Single lined Spectroscopic Binaries The Astronomical Journal 145 3 81 Bibcode 2013AJ 145 81R doi 10 1088 0004 6256 145 3 81 S2CID 120199240 Soubiran Caroline Le Campion Jean Francois Brouillet Nathalie Chemin Laurent 2016 The PASTEL catalogue 2016 version Astronomy amp Astrophysics 591 A118 arXiv 1605 07384 Bibcode 2016A amp A 591A 118S doi 10 1051 0004 6361 201628497 S2CID 119258214 De Medeiros J R Mayor M 1999 A catalog of rotational and radial velocities for evolved stars Astronomy and Astrophysics Supplement Series 139 3 433 arXiv astro ph 0608248 Bibcode 1999A amp AS 139 433D doi 10 1051 aas 1999401 Vizier catalog entry 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 amp A 424 727P doi 10 1051 0004 6361 20041213 S2CID 119387088 Parsons Sidney B Ake Thomas B 1998 Ultraviolet and Optical Studies of Binaries with Luminous Cool Primaries and Hot Companions V The Entire IUE Sample The Astrophysical Journal Supplement Series 119 1 83 Bibcode 1998ApJS 119 83P doi 10 1086 313152 Hutter D J Zavala R T Tycner C Benson J A Hummel C A Sanborn J Franz O G Johnston K J 2016 Surveying the Bright Stars by Optical Interferometry I A Search for Multiplicity among Stars of Spectral Types F K Astrophysical Journal Supplement Series 227 1 4 arXiv 1609 05254 Bibcode 2016ApJS 227 4H doi 10 3847 0067 0049 227 1 4 S2CID 118803592 Parsons S B Franz O G Wassermann L H 2005 The Fine Guidance Sensor Orbit of the G4 Bright Giant HD 173764 Astronomical Journal 129 3 1700 Bibcode 2005AJ 129 1700P doi 10 1086 427853 Heintz Wulff D 1978 Double Stars Springer Bibcode 1978GAM 15 H doi 10 1007 978 94 009 9836 0 ISBN 978 90 277 0886 1 a href Template Cite book html title Template Cite book cite book a journal ignored help Wagman M August 1987 Flamsteed s Missing Stars Journal for the History of Astronomy 18 3 212 Bibcode 1987JHA 18 209W doi 10 1177 002182868701800305 S2CID 118445625 Retrieved from https en wikipedia org w index php title Beta Scuti amp oldid 1172219550, wikipedia, wiki, book, books, library,
