45 Bootis
45 Bootis (45 Boo / c Bootis / HD 134083)[8] ye una estrella de la constelación de Boötes de magnitú aparente +4,93. Alcuéntrase a 64 años lluz del Sistema Solar.
45 Bootis ye una estrella blancu-mariella de tipu espectral F5V con una temperatura superficial de 6516 - 6528 K.[9][10] Ye 3,54 vegaes más lluminosa que'l Sol[11] y tien un radiu de 1,37 radios solares.[12] Xira sobre sigo mesma con una velocidá de rotación de siquier 44,4 km/s.[10] Nun se detectó escesu nel infrarroxu nin a 24 nin a 70 μm, lo qu'en principiu refuga la presencia d'un discu circumestelar de polvu alredor d'ella.[13] La so masa ye un 38% mayor que la del Sol y tien una edá envalorada ente 1200[9] y 1600 millones d'años.[13]
45 Bootis exhibe una metalicidá comparable a la del Sol ([Fe/H] = +0,02).[9] Otros elementos evaluaos presenten niveles desemeyaos; ente que'l sodiu ye más abondosu que nel Sol —la so bayura relativa ye un 50% superior a la solar—, titaniu y níquel son menos abondosos. El conteníu d'esti últimu metal ye menos de la metá del esistente nel nuesu Sol.[14]
45 Bootis forma parte de l'Asociación estelar del sietestrellu. γ Leporis y ρ Capricorni son dos miembros d'esta asociación que les sos carauterístiques son bien paecíes a les de 45 Bootis.
Referencies
- ↑ Afirmao en: SIMBAD. Data de consulta: 14 agostu 2014. Llingua de la obra o nome: inglés.
- ↑ Afirmao en: SIMBAD. Llingua de la obra o nome: inglés.
- ↑ 3,0 3,1 3,2 3,3 «Gaia EDR3» (n'inglés). VizieR Online Data Catalog. 3 avientu 2020. doi:.
- ↑ «VizieR Online Data Catalog: Stellar Photometry in Johnson's 11-color system (Ducati, 2002)» (n'inglés). VizieR Online Data Catalog. 2002.
- ↑ 5,0 5,1 «Abundances in the Local Region II: F, G, and K Dwarfs and Subgiants». The Astronomical Journal (1). 21 avientu 2016. doi:.
- ↑ D. Montes (ochobre 2010). «A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups» (n'inglés). Astronomy and Astrophysics: páxs. A12. doi:.
- ↑ «The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. I. Precise Spectral Types for 372 Stars» (n'inglés). The Astronomical Journal (4): páxs. 2148–2158. abril 2001. doi:.
- ↑ c Boo -- Variable Star (SIMBAD)
- ↑ 9,0 9,1 9,2 Holmberg, J.; Nordström, B.; Andersen, J. (2009). «The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics». Astronomy and Astrophysics 501 (3). páxs. 941-947 (Tabla consultada en CDS). http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2009A%26A...501..941H&db_key=AST&nosetcookie=1.
- ↑ 10,0 10,1 Schröder, C.; Reiners, A.; Schmitt, J. H. M. M. (2009). «Ca II HK emission in rapidly rotating stars. Evidence for an onset of the solar-type dynamo». Astronomy and Astrophysics 493 (3). páxs. 1099-1107. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2009A&A...493.1099S&db_key=AST&nosetcookie=1.
- ↑ van Belle, G. T.; van Belle, G.; Creech-Eakman, M. J.; Coyne, J.; Boden, A. F.; Akeson, R. L.; Ciardi, D. R.; Rykoski, K. M.; Thompson, R. R.; Lane, B. F.; PTI Collaboration (2008). «The Palombar Testbed Interferometer Calibrator Catalog». The Astrophysical Journal Supplement Series 176 (1). páxs. 276-292. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2008ApJS..176..276V&db_key=AST&nosetcookie=1.
- ↑ Takeda, Genya; Ford, Eric B.; Sills, Alison; Rasio, Frederic A.; Fischer, Debra A.; Valenti, Jeff A. (2007). «Structure and Evolution of Nearby Stars with Planets. II. Physical Properties of ~1000 Cool Stars from the SPOCS Catalog». The Astrophysical Journal Supplement Series 168 (2). páxs. 297-318. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2007ApJS..168..297T&db_key=AST&nosetcookie=1.
- ↑ 13,0 13,1 Kóspál, Ágnes; Ardila, David R.; Moór, Attila; Ábrahám, Péter (2009). «On the Relationship Between Debris Disks and Planets». The Astrophysical Journal Letters 700 (2). pp. L73-L77. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2009ApJ...700L..73K&db_key=AST&nosetcookie=1.
- ↑ Valenti, Jeff A.; Fischer, Debra A. (2005). «Spectroscopic Properties of Cool Stars (SPOCS). I. 1040 F, G, and K Dwarfs from Keck, Lick, and AAT Planet Search Programs». The Astrophysical Journal Supplement Series 159 (1). páxs. 141-166. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?2005ApJS..159..141V&db_key=AST&nosetcookie=1.
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