船尾座RS:修订间差异
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{{Starbox begin | |
{{Starbox begin | |
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| name= |
| name=船尾座RS(RS Puppis) |
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| caption = [[哈伯太空望遠鏡|哈伯]]拍攝的船尾座RS |
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}} |
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| caption = [[哈伯太空望遠鏡]]拍攝的船尾座RS<ref>{{cite news|title=RS Puppis puts on a spectacular light show|url=http://www.spacetelescope.org/news/heic1323/|accessdate=18 December 2013|newspaper=ESA/Hubble Press Realease}}</ref> |
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{{Starbox observe |
{{Starbox observe |
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| epoch=[[J2000.0]] |
| epoch=[[J2000.0]] |
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| constell=[[船尾座]] |
| constell=[[船尾座]] |
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| ra={{RA|08|13|04.21601}}<ref name=hipparcos/> |
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| ra= 08<sup>h</sup> 13<sup>m</sup> 04<sup>s</sup> |
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| dec={{DEC|-34|34|42.7023}}<ref name=hipparcos/> |
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| dec= −34° 34′ 42″ |
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| appmag_v=7. |
| appmag_v=6.5-7.6<ref name=berdnikov/> |
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}} |
}} |
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{{Starbox character |
{{Starbox character |
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| class=G2Ib<ref name=luck/> {{nowrap|(F9 - G7<ref name=gcvs/>)}} |
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| class=F8Iab |
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| b-v= |
| b-v=1.5<ref name=bv/> |
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| u-b= |
| u-b=1.2<ref name=bv/> |
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| variable= [[造父變星]] |
| variable= [[經典造父變星|造父一]]<ref name=gcvs/> |
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}} |
}} |
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{{Starbox astrometry |
{{Starbox astrometry |
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| radial_v= |
| radial_v=24.60<ref name=pulkovo/> |
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| prop_mo_ra= |
| prop_mo_ra=-3.19<ref name=hipparcos/> |
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| prop_mo_dec= |
| prop_mo_dec=2.33<ref name=hipparcos/> |
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| absmag_v= |
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| parallax_footnote=<ref name=dr2/> |
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| dist_ly= |
| dist_ly= |
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| dist_pc= |
| dist_pc= |
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| absmag_v=-5.70<ref name=kervella/> |
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}} |
}} |
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{{Starbox detail |
{{Starbox detail |
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| mass= |
| mass=9.2<ref name=kervella/> |
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| radius=191<ref name=kervella2017/> (164 - 208) |
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| radius=200 |
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| luminosity=21,700<ref name=kervella2017/> {{nowrap|(14,200 - 29,500)}} |
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| luminosity=15,000 |
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| temperature=5,060<ref name=kervella2017/> {{nowrap|(4,640 - 5,850)}} |
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| temperature= |
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| metal_fe=0.17<ref name=marsakov/> |
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| metal= |
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| rotation= |
| rotation= |
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| age_myr=28<ref name=marsakov/> |
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| age= }} |
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}} |
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{{Starbox catalog |
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| names=[[HD星表|HD]] 68860、[[依巴谷星表|HIP]] 40233、 [[SAO星表|SAO]] 198944、[[波恩星表|CD]]−34°4488 |
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}} |
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{{Starbox reference |
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| Simbad=RS+Pup |
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}} |
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{{Starbox end}} |
{{Starbox end}} |
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'''船尾座 |
'''船尾座'''('''RS Puppis'''或'''RS Pup''')是在[[船尾座]]的一顆[[造父變星]],與[[地球]]的距離大約是{{val|6000|ul=ly|fmt=commas}}。它是[[銀河系]]中已知最亮的造父變星之一,在這類變星中擁有長達41.5天的變光週期,也是這類變星中[[週期]]最長的。 |
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== |
== 距離 == |
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船尾座RS的正確距離很重要,因為造父變星是測量銀河系和附近星系距離的[[標準燭光|宇宙階梯]]。 |
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因為船尾座RS位於一個巨大的[[星雲]]中,天文學家使用[[欧洲南方天文台]]設於[[智利]][[拉西拉天文台]]的[[新技術望遠鏡]]才能從星雲內分子產生的[[回光]]中進行精確型態分析以量測距離,並確定該恆星距離地球6500 ± 90光年,該次在2008年初的距離量測是當時量測造父變星距離最精確的一次。這次新的量測精度相當重要,因為造父變星是銀河系和其他較近星系內距離量測的[[標準燭光]]<ref>{{cite press release |last=Kervella |first=Pierre |title=Light echoes whisper the distance to a star |date=2008-02-11 |publisher=European Southern Observatory |url=http://www.eso.org/public/news/eso0805/ |accessdate=2013-09-09 }}</ref><ref>[http://www.eso.org/public/videos/eso0805a/ Animation of the light echo]</ref><ref>[http://crocus.physics.mcmaster.ca/Cepheid/Info/MW/RS_Pup.html RS Pup Vital Statistics<!-- Bot generated title -->]</ref>。 |
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因為它位於一個巨大的[[星雲]]中,天文學家在2008年使用位於[[智利]][[拉西拉天文台]]的[[歐洲南方天文台|歐南天文台]][[新技術望遠鏡]],通過嚴格的幾何分析來自星雲中分子的[[光回波]]距離來測量距離它的距離,確定它與地球的距離是{{convert|1,992 ± 28|pc|ly}} 。截至2008年初,這是對任何造父變星所進行的最準確的測量<ref name=kervella2008/>。 |
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在2014年,[[哈伯太空望遠鏡]]使用[[先進巡天照相機]]再度以光回波的偏振影像測量。通過這次測量得到的距離是{{convert|1,910 ± 80|pc|ly}}.<ref name=kervella/>。 |
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在[[蓋亞#資料釋放|蓋亞釋出的第二批]]資料,直接以幾何視差測量是{{val|0.5844|0.0260|ul=mas}},相當於{{convert|1,710 ± 80|pc|ly}}.<ref name=dr2/>。 |
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== 變異性 == |
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<ref name=dr2>{{cite DR2|5546476927338700416}}</ref> |
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<ref name=anderson>{{cite journal|doi=10.1051/0004-6361/201423850|title=Tuning in on Cepheids: Radial velocity amplitude modulations|journal=Astronomy & Astrophysics|volume=566|pages=L10|year=2014|last1=Anderson|first1=Richard I}}</ref> |
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<ref name=hipparcos>{{Cite journal | last1 = Van Leeuwen | first1 = F. | title = Validation of the new Hipparcos reduction | doi = 10.1051/0004-6361:20078357 | journal = Astronomy and Astrophysics | volume = 474 | issue = 2 | pages = 653–664 | year = 2007 | pmid = | pmc = |arxiv = 0708.1752 |bibcode = 2007A&A...474..653V }}</ref> |
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<ref name=kervella2008>{{cite journal|doi=10.1051/0004-6361:20078961|title=The long-period Galactic Cepheid RS Puppis|journal=Astronomy & Astrophysics|volume=480|pages=167–178|year=2008|last1=Kervella|first1=P|last2=Mérand|first2=A|last3=Szabados|first3=L|last4=Fouqué|first4=P|last5=Bersier|first5=D|last6=Pompei|first6=E|last7=Perrin|first7=G}}</ref> |
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<ref name=berdnikov>{{Cite journal | doi = 10.1134/S1063773709060061| title = Search for evolutionary changes in Cepheid periods using the Harvard plate collection: RS Puppis| journal = Astronomy Letters| volume = 35| issue = 6| pages = 406| year = 2009| last1 = Berdnikov | first1 = L. N.| last2 = Henden | first2 = A. A.| last3 = Turner | first3 = D. G.| last4 = Pastukhova | first4 = E. N.| bibcode = 2009AstL...35..406B}}</ref> |
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<ref name=luck>{{cite journal|bibcode=1989ApJS...71..559L|title=Supergiants and the Galactic metallicity gradient. II - Spectroscopic abundances for 64 distant F- to M-type supergiants|journal=Astrophysical Journal Supplement Series|volume=71|pages=559|author1=Luck|first1=R. Earle|last2=Bond|first2=Howard E.|year=1989|doi=10.1086/191386}}</ref> |
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<ref name=bv>{{cite journal|bibcode=1971A&AS....4..265S|title=The light curve parameters of photoelectrically observed galactic Cepheids|journal=Astronomy and Astrophysics Supplement|volume=4|pages=265|author1=Schaltenbrand|first1=R.|last2=Tammann|first2=G. A.|year=1971}}</ref> |
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<ref name=gcvs>{{cite journal|bibcode=2009yCat....102025S|title=VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007–2013)|journal=VizieR On-line Data Catalog: B/gcvs. Originally Published In: 2009yCat....102025S|volume=1|pages=02025|author1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009|display-authors=etal}}</ref> |
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<ref name=pulkovo>{{Cite journal| doi = 10.1134/S1063773706110065| bibcode=2006AstL...32..759G| title = Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system| journal = Astronomy Letters| volume = 32| issue = 11| pages = 759–771| date = November 2006| last1 = Gontcharov | first1 = G. A.|arxiv = 1606.08053 }}</ref> |
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<ref name=kervella>{{Cite journal | doi = 10.1051/0004-6361/201424395| title = The long-period Galactic Cepheid RS Puppis| journal = Astronomy & Astrophysics| volume = 572| issue = 7| pages = A7| year = 2014| last1 = Kervella | first1 = P.| last2 = Bond | first2 = H. E.| last3 = Cracraft | first3 = M.| last4 = Szabados | first4 = L.| last5 = Breitfelder | first5 = J.| last6 = Mérand | first6 = A.| last7 = Sparks | first7 = W. B.| last8 = Gallenne | first8 = A.| last9 = Bersier | first9 = D.| last10 = Fouqué | first10 = P.| last11 = Anderson | first11 = R. I.| bibcode = 2014A&A...572A...7K|arxiv = 1408.1697 }}</ref> |
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<ref name=marsakov>{{Cite journal | doi = 10.1134/S1063773713120050| title = Properties of the population of classical Cepheids in the Galaxy| journal = Astronomy Letters| volume = 39| issue = 12| pages = 851| year = 2013| last1 = Marsakov | first1 = V. A.| last2 = Koval’ | first2 = V. V.| last3 = Kovtyukh | first3 = V. V.| last4 = Mishenina | first4 = T. V.| bibcode = 2013AstL...39..851M}}</ref> |
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<ref name=kervella2017>{{cite journal|bibcode=2017A&A...600A.127K|title=Observational calibration of the projection factor of Cepheids. III. The long-period Galactic Cepheid RS Puppis|journal=Astronomy and Astrophysics|volume=600|issue=127|pages=A127|last1=Kervella|first1=Pierre|last2=Trahin|first2=Boris|last3=Bond|first3=Howard E|last4=Gallenne|first4=Alexandre|last5=Szabados|first5=Laszlo|last6=Mérand|first6=Antoine|last7=Breitfelder|first7=Joanne|last8=Dailloux|first8=Julien|last9=Anderson|first9=Richard I|last10=Fouqué|first10=Pascal|last11=Gieren|first11=Wolfgang|last12=Nardetto|first12=Nicolas|last13=Pietrzyński|first13=Grzegorz|year=2017|doi=10.1051/0004-6361/201630202|arxiv=1701.05192}}</ref> |
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<ref name=vsx>{{cite journal|bibcode=2006SASS...25...47W|title=The International Variable Star Index (VSX)|journal=The Society for Astronomical Sciences 25th Annual Symposium on Telescope Science. Held May 23–25|volume=25|pages=47|author1=Watson|first1=C. L.|year=2006}}</ref> |
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}} |
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==外部連結== |
== 外部連結 == |
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*[http://www.universetoday.com/107282/watch-a-star-blast-out-waves-of-light/#more-107282 Universe Today - RS Puppis Light Echoes] |
*[http://www.universetoday.com/107282/watch-a-star-blast-out-waves-of-light/#more-107282 Universe Today - RS Puppis Light Echoes] |
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*[http://www.spacetelescope.org/news/heic1323/ NASA - RS Puppis] |
*[http://www.spacetelescope.org/news/heic1323/ NASA - RS Puppis] |
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*{{APOD |date=12 February 2008|title=Echoes from RS Pup}} |
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{{var-star-stub}} |
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{{Stars of Puppis}} |
{{Stars of Puppis}} |
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{{Sky|08|13|04.21601|-|34|34|42.7023|6500}} |
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[[Category:造父變星]] |
[[Category:經典造父變星]] |
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[[Category:船尾座]] |
[[Category:船尾座]] |
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[[Category:F-型超巨星]] |
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[[Category:HD和HDE天體|068860]] |
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[[Category:以变星命名法命名的天体]] |
[[Category:以变星命名法命名的天体]] |
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[[Category:HIP天體|040233]] |
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[[Category:G-型超巨星]] |
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[[Category:波恩天體]] |
2019年2月18日 (一) 18:22的版本
觀測資料 曆元 J2000.0 | |
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星座 | 船尾座 |
星官 | |
赤經 | 08h 13m 04.21601s[1] |
赤緯 | -34° 34′ 42.7023″[1] |
視星等(V) | 6.5-7.6[2] |
特性 | |
光谱分类 | G2Ib[3] (F9 - G7[4]) |
U−B 色指数 | 1.2[5] |
B−V 色指数 | 1.5[5] |
变星类型 | 造父一[4] |
天体测定 | |
徑向速度 (Rv) | 24.60[6] km/s |
自行 (μ) | 赤经:-3.19[1] mas/yr 赤纬:2.33[1] mas/yr |
视差 (π) | 0.5844 ± 0.0260[7] mas |
距离 | 5,600 ± 200 ly (1,710 ± 80 pc) |
绝对星等 (MV) | -5.70[8] |
詳細資料 | |
質量 | 9.2[8] M☉ |
半徑 | 191[9] (164 - 208) R☉ |
亮度 | 21,700[9] (14,200 - 29,500) L☉ |
溫度 | 5,060[9] (4,640 - 5,850) K |
金属量 [Fe/H] | 0.17[10] dex |
年齡 | 28[10] Myr |
其他命名 | |
參考資料庫 | |
SIMBAD | 资料 |
船尾座(RS Puppis或RS Pup)是在船尾座的一顆造父變星,與地球的距離大約是ly。它是 6,000 銀河系中已知最亮的造父變星之一,在這類變星中擁有長達41.5天的變光週期,也是這類變星中週期最長的。
距離
船尾座RS的正確距離很重要,因為造父變星是測量銀河系和附近星系距離的宇宙階梯。
因為它位於一個巨大的星雲中,天文學家在2008年使用位於智利拉西拉天文台的歐南天文台新技術望遠鏡,通過嚴格的幾何分析來自星雲中分子的光回波距離來測量距離它的距離,確定它與地球的距離是1,992正負28秒差距(6,497正負91光年) 。截至2008年初,這是對任何造父變星所進行的最準確的測量[11]。
在2014年,哈伯太空望遠鏡使用先進巡天照相機再度以光回波的偏振影像測量。通過這次測量得到的距離是1,910正負80秒差距(6,230正負260光年).[8]。
在蓋亞釋出的第二批資料,直接以幾何視差測量是±0.0260 mas,相當於1,710正負80秒差距(5,580正負260光年). 0.5844[7]。
變異性
參考資料
- ^ 1.0 1.1 1.2 1.3 Van Leeuwen, F. Validation of the new Hipparcos reduction. Astronomy and Astrophysics. 2007, 474 (2): 653–664. Bibcode:2007A&A...474..653V. arXiv:0708.1752 . doi:10.1051/0004-6361:20078357.
- ^ Berdnikov, L. N.; Henden, A. A.; Turner, D. G.; Pastukhova, E. N. Search for evolutionary changes in Cepheid periods using the Harvard plate collection: RS Puppis. Astronomy Letters. 2009, 35 (6): 406. Bibcode:2009AstL...35..406B. doi:10.1134/S1063773709060061.
- ^ Luck, R. Earle; Bond, Howard E. Supergiants and the Galactic metallicity gradient. II - Spectroscopic abundances for 64 distant F- to M-type supergiants. Astrophysical Journal Supplement Series. 1989, 71: 559. Bibcode:1989ApJS...71..559L. doi:10.1086/191386.
- ^ 4.0 4.1 Samus, N. N.; Durlevich, O. V.; et al. VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007–2013). VizieR On-line Data Catalog: B/gcvs. Originally Published In: 2009yCat....102025S. 2009, 1: 02025. Bibcode:2009yCat....102025S.
- ^ 5.0 5.1 Schaltenbrand, R.; Tammann, G. A. The light curve parameters of photoelectrically observed galactic Cepheids. Astronomy and Astrophysics Supplement. 1971, 4: 265. Bibcode:1971A&AS....4..265S.
- ^ Gontcharov, G. A. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system. Astronomy Letters. November 2006, 32 (11): 759–771. Bibcode:2006AstL...32..759G. arXiv:1606.08053 . doi:10.1134/S1063773706110065.
- ^ 7.0 7.1 Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; et al. Gaia Data Release 2. Summary of the contents and survey properties. Astronomy & Astrophysics. 2018. Bibcode:2018A&A...616A...1G. arXiv:1804.09365 . doi:10.1051/0004-6361/201833051. VizieR中此天体在盖亚望远镜第二批数据发布的记录
- ^ 8.0 8.1 8.2 Kervella, P.; Bond, H. E.; Cracraft, M.; Szabados, L.; Breitfelder, J.; Mérand, A.; Sparks, W. B.; Gallenne, A.; Bersier, D.; Fouqué, P.; Anderson, R. I. The long-period Galactic Cepheid RS Puppis. Astronomy & Astrophysics. 2014, 572 (7): A7. Bibcode:2014A&A...572A...7K. arXiv:1408.1697 . doi:10.1051/0004-6361/201424395.
- ^ 9.0 9.1 9.2 Kervella, Pierre; Trahin, Boris; Bond, Howard E; Gallenne, Alexandre; Szabados, Laszlo; Mérand, Antoine; Breitfelder, Joanne; Dailloux, Julien; Anderson, Richard I; Fouqué, Pascal; Gieren, Wolfgang; Nardetto, Nicolas; Pietrzyński, Grzegorz. Observational calibration of the projection factor of Cepheids. III. The long-period Galactic Cepheid RS Puppis. Astronomy and Astrophysics. 2017, 600 (127): A127. Bibcode:2017A&A...600A.127K. arXiv:1701.05192 . doi:10.1051/0004-6361/201630202.
- ^ 10.0 10.1 Marsakov, V. A.; Koval’, V. V.; Kovtyukh, V. V.; Mishenina, T. V. Properties of the population of classical Cepheids in the Galaxy. Astronomy Letters. 2013, 39 (12): 851. Bibcode:2013AstL...39..851M. doi:10.1134/S1063773713120050.
- ^ Kervella, P; Mérand, A; Szabados, L; Fouqué, P; Bersier, D; Pompei, E; Perrin, G. The long-period Galactic Cepheid RS Puppis. Astronomy & Astrophysics. 2008, 480: 167–178. doi:10.1051/0004-6361:20078961.
引用错误:在<references>
标签中name属性为“anderson”的参考文献没有在文中使用
<references>
标签中name属性为“vsx”的参考文献没有在文中使用
外部連結
- Universe Today - RS Puppis Light Echoes
- NASA - RS Puppis
- NASA Astronomy Picture of the Day: Echoes from RS Pup (12 February 2008)
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