请输入您要查询的百科知识:

 

词条 UX Arietis
释义

  1. References

  2. Further reading

  3. External links

{{Starbox begin
| name=UX Arietis
}}{{Starbox observe
| epoch=J2000
| ra={{RA|03|26|35.38922}}
| dec={{DEC|+28|42|54.3169}}
| appmag_v=6.47[3]
| constell=Aries
}}{{Starbox character
| class=G5IV[4]
| r-i =
| v-r =
| b-v = 0.90[3]
| u-b = 0.43[3]
| variable=RS CVn[7]
}}{{Starbox astrometry
| radial_v=+26.53[8]
| prop_mo_ra=+41.65
| prop_mo_dec=−104.03
| parallax=19.37
| p_error=0.70
| parallax_footnote=
| absmag_v=
}}{{Starbox orbit
| reference = [10]
| period_unitless = {{Val|6.437888|0.000007|u=d}}
| axis_unitless = {{Val|1.750|0.01}}
| eccentricity = 0 (fixed)
| inclination = {{Val|125.0|0.5}}
| node = {{Val|113.4|0.4}}
| periastron = {{nowrap|2456238.134 ± 0.002 HJD}}
| periarg = 90 (fixed)
}}{{Starbox detail
| source = [10]
| component1 = UX Ari Aa
| mass = {{Val|1.30|0.06}}
| radius = {{Val|5.6|0.1}}
| luminosity = {{Val|9.3|0.7}}
| gravity = {{Val|3.06|0.04}}
| temperature = {{Val|4560|100|fmt=commas}}
| metal=
| rotation=6.44 d[4]
| age=
| component2 = UX Ari Ab
| mass2 = {{Val|1.14|0.06}}
| radius2 = {{Val|1.6|0.2}}
| temperature2 = {{Val|5670|100|fmt=commas}}
| luminosity2 = {{Val|2.34|0.28}}
| gravity2 = {{Val|4.09|0.16}}
}}{{Starbox catalog
| names=BD+28° 532, CCDM 03266+2843, HD 21242, HIP 16042, SAO 75927.
}}{{Starbox reference
| Simbad=HD+21242
| ARICNS =00304
}}{{Starbox end}}UX Arietis is a triple star system located in the northern zodiacal constellation of Aries. Based upon parallax measurements from the Hipparcos satellite, it is roughly 168 light years away. The primary, component Aa, is a variable star of the RS CVn type. The variability of the star is believed due to a combination of cool star spots and warm flares, set against the baseline quiescent temperature of the stellar atmosphere. The variability appears to be cyclical with a period of 8−9 years.[7]

References

1. ^{{citation | display-authors=1 | last1=Karataş | first1=Y. | last2=Bilir | first2=S. | last3=Eker | first3=Z. | last4=Demircan | first4=O. | title=Kinematics of chromospherically active binaries and evidence of an orbital period decrease in binary evolution | journal=Monthly Notices of the Royal Astronomical Society | volume=349 | issue=3 | pages=1069–1092 | date=April 2004 | doi=10.1111/j.1365-2966.2004.07588.x | bibcode=2004MNRAS.349.1069K |arxiv = astro-ph/0404219}}
2. ^{{citation | last1=Strassmeier | first1=Klaus G. | title=Starspots | journal=The Astronomy and Astrophysics Review | volume=17 | issue=3 | pages=251–308 | date=September 2009 | doi=10.1007/s00159-009-0020-6 | bibcode=2009A&ARv..17..251S }}
3. ^{{citation | last1=Guetter | first1=H. H. | last2=Hewitt | first2=A. V. | title=Photoelectric UBV photometry for 317 PZT and VZT stars | journal=Publications of the Astronomical Society of the Pacific | volume=96 | pages=441–443 | date=June 1984 | doi=10.1086/131362 | bibcode=1984PASP...96..441G }}
4. ^{{citation | last1=Alekseev | first1=I. Yu. | title=Three-Component Model of Spottedness in the Classical RS CVn System UX Ari | journal=Astrophysics | volume=57 | issue=3 | pages=344–351 | date=September 2014 | doi=10.1007/s10511-014-9339-4 | bibcode=2014Ap.....57..344A }}
5. ^{{citation | title=Orbital Elements and Stellar Parameters of the Active Binary UX Arietis | display-authors=1 | last1=Hummel | first1=C. A. | last2=Monnier | first2=J. D. | last3=Roettenbacher | first3=R. M. | last4=Torres | first4=G. | last5=Henry | first5=G. W. | last6=Korhonen | first6=H. | last7=Beasley | first7=A. | last8=Schaefer | first8=G. H. | last9=Turner | first9=N. H. | last10=Ten Brummelaar | first10=T. | last11=Farrington | first11=C. D. | last12=Sturmann | first12=J. | last13=Sturmann | first13=L. | last14=Baron | first14=F. | last15=Kraus | first15=S. | journal=The Astrophysical Journal | postscript=. | volume=844 | issue=2 | id=115 | pages=12 | date=August 2017 | doi=10.3847/1538-4357/aa7b87 | bibcode=2017ApJ...844..115H }}
Vizier catalog entry
[1][2][3][4][5]
}}

Further reading

  • {{Cite journal|bibcode=2000cxo..prop..434B|author= Brinkman, Albert|title=High-Resolution Spectrum of UX Ari|journal=Chandra Proposal ID #02200030|date=2000}}
  • {{Cite journal|bibcode=1999cxo..prop...20D|author= Drake, Stephen |title=Acis/hetg Spectroscopy of the Active Binaries Algol & UX Ari|journal=Chandra Proposal ID #01200248|date=1999}}
  • {{Cite journal|url=http://www.aanda.org/index.php?option=article&access=standard&Itemid=129&url=/articles/aa/full/2003/18/aah3956/aah3956.html|author= V. Aarum Ulvås|author2= G. W. Henry|last-author-amp= yes |title=BV photometry of UX Ari in the period 1987-2002 |journal=Astronomy and Astrophysics |date=2003}}

External links

  • HIP 16042
  • Image HD 21242
  • HIP 16042
{{Stars of Aries}}{{Star-system-stub}}{{var-star-stub}}

9 : Aries (constellation)|G-type subgiants|Triple stars|Henry Draper Catalogue objects|Spectroscopic binaries|Hipparcos objects|RS Canum Venaticorum variables|Objects with variable star designations|Durchmusterung objects

随便看

 

开放百科全书收录14589846条英语、德语、日语等多语种百科知识,基本涵盖了大多数领域的百科知识,是一部内容自由、开放的电子版国际百科全书。

 

Copyright © 2023 OENC.NET All Rights Reserved
京ICP备2021023879号 更新时间:2024/9/23 0:37:17