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{{Sky|04|21|58.8483|+|28|18|06.5119}}
{{Starbox begin
| name = HD 283572}}
{{Starbox image
| image = [[Image:V987TauLightCurve.png|250px]]
| caption = 結合[[測光系統#使用中的濾鏡系統|y通道]]（近紅外）和可見光的金牛座V987[[光變曲線]]，改編自斯特拉斯邁爾（Strassmeier）和賴斯（Rice）（1998）<ref name="Strassmeier"/>。}}
{{Starbox observe
| constell = [[金牛座]]
| epoch = J2000
| ra = {{RA|04|21|58.8483}}<ref name=SIMBAD/>
| dec = {{DEC|+28|18|06.5119}}<ref name=SIMBAD/>
| appmag_v =
}}
{{Starbox character
| type = [[主序前星]]<ref name=Scelsi2005>{{citation|bibcode=2005A&A...432..671S|arxiv=astro-ph/0501631|year=2005|title=Coronal properties of G-type stars in different evolutionary phases|doi=10.1051/0004-6361:20041739|last1=Scelsi|first1=L.|last2=Maggio|first2=A.|last3=Peres|first3=G.|last4=Pallavicini|first4=R.|journal=Astronomy & Astrophysics|volume=432|issue=2|pages=671–685|s2cid=15298988}}</ref>
| class = G5<ref name=Torres2007>{{citation|arxiv=0708.4403|bibcode=2007ApJ...671.1813T|year=2007|title=VLBA Determination of the Distance to Nearby Star‐forming Regions. II. Hubble 4 and HDE 283572 in Taurus|doi=10.1086/522924|last1=Torres|first1=Rosa M.|last2=Loinard|first2=Laurent|last3=Mioduszewski|first3=Amy J.|last4=Rodriguez|first4=Luis F.|journal=The Astrophysical Journal|volume=671|issue=2|pages=1813–1819|s2cid=16357104}}</ref>
| appmag_1_passband = B
| appmag_1 = 9.80<ref name=SIMBAD/>
| appmag_2_passband = g
| appmag_2 = 8.80<ref name=EDR3/>
| appmag_3_passband = R
| appmag_3 = 9.14<ref name=SIMBAD/>
| appmag_4_passband = J
| appmag_4 = 7.414<ref name=SIMBAD/>
| variable = [[金牛T星|T Tau]]<ref name=Torres2007/>
}}
{{Starbox astrometry
| radial_v = 15.0{{±|1.5}}<ref name=Torres2007/>
| prop_mo_ra = 8.84{{±|0.03}}
| prop_mo_dec = -26.426{{±|0.017}}
| pm_footnote=<ref name=EDR3/>
| parallax = 7.8735
| p_error = 0.0190
| parallax_footnote = <ref name=EDR3/>
| absmag_v =
}}
{{Starbox detail
|source=<ref name=Torres2007/>
| mass = 1.6
|radius=2.2
| temperature =5770
|gravity=
| luminosity =5.5
| metal_fe = 0.7{{±|0.2}}<ref name=Scelsi2005/>
|rotation=1.55 [[day|d]]<ref name=Scelsi2005/>
| rotational_velocity =78<ref name=Scelsi2005/>
| age_myr = 9
}}
{{Starbox catalog
| names = HDE 283572、[[2MASS]] J04215884+2818066、BD+27 657、GSC 01828-00481、HIP 20388、TYC 1828-481-1、V987 Tauri、Gaia DR2 164536250037820160
}}
{{Starbox reference
| Simbad = HD+283572

}}
{{Starbox end}}

'''HD 283572'''是位於[[金牛座]]的一顆年輕[[金牛T星|金牛座T型]][[主序前星]]，屬於[[金牛座分子雲]]，距離約{{val|414|ul=光年}}外<ref name=Scelsi2005/>。它已經剝離了它的{{link-en|胎衣|birth shroud}}，是一顆演化相當成熟的[[原恆星]]<ref name=Torres2007/>。這顆恆星發出非常高的[[ X射線]]，通量為10<sup>31</sup>ergs/s。與磁活動相關的輻射通量導致了3kEv的高日冕溫度和規則的[[耀斑]]<ref>{{citation |bibcode=1998A&A...337..413F |journal=Astronomy and Astrophysics |year=1998 |title=X-ray spectroscopy of the weak-lined T Tauri star HD 283572 |volume=336 |pages=413–420 |author1=Favata, F. |author2=Micela, G. |author3=Sciortino, S. }}</ref>。當HD 283572最終成為[[主序星]]時，將演化為[[A型主序星]]<ref name=Scelsi2005/>。它不再吸積質量，並與[[原行星盤]]的殘餘物磁性解耦<ref name=Scelsi2005/>，屬於盤面演化第三階段的終端<ref name=Yasui2019>{{citation|arxiv=1909.09850|year=2019|title=Possible Progression of Mass-flow Processes around Young Intermediate-mass Stars Based on High-resolution Near-infrared Spectroscopy. I. Taurus|doi=10.3847/1538-4357/ab45ee|bibcode=2019ApJ...886..115Y|last1=Yasui|first1=Chikako|last2=Hamano|first2=Satoshi|last3=Fukue|first3=Kei|last4=Kondo|first4=Sohei|last5=Sameshima|first5=Hiroaki|last6=Takenaka|first6=Keiichi|last7=Matsunaga|first7=Noriyuki|last8=Ikeda|first8=Yuji|last9=Kawakita|first9=Hideyo|last10=Otsubo|first10=Shogo|last11=Watase|first11=Ayaka|last12=Taniguchi|first12=Daisuke|last13=Mizumoto|first13=Misaki|last14=Izumi|first14=Natsuko|last15=Kobayashi|first15=Naoto|journal=The Astrophysical Journal|volume=886|issue=2|page=115|s2cid=202718804}}</ref>。

== 原行星系統 ==
HD 283572被少量（<0.0004 {{Solar_mass}}）和傾斜不確定的微弱原行星盤包圍。不同的儀器量測出圓盤相對於天空平面的傾斜度在35度到60度之間<ref name=Yasui2019/>。對行星凌日進行了蒐索，但截至2019年沒有發現行星<ref>{{citation |bibcode=2019MNRAS.483.1642H |doi=10.1093/mnras/sty3151 |title=T Tauri stars in the SuperWASP and NSVS surveys |year=2019 |last1=Hambálek |first1=Ľ. |last2=Vaňko |first2=M. |last3=Paunzen |first3=E. |last4=Smalley |first4=B. |journal=Monthly Notices of the Royal Astronomical Society |volume=483 |issue=2 |pages=1642–1654 |arxiv=1811.08655 }}</ref>。

== 參考資料 ==
{{Reflist|refs=
<ref name="Strassmeier">{{cite journal |last1=Strassmeier |first1=K. G. |last2=Rice |first2=J. B. |title=Doppler imaging of stellar surface structure. IX. A high-resolution image of the weak-lined T Tauri star HDE 283572 = V987 Tauri |journal=Astronomy and Astrophysics |date=November 1998 |volume=339 |pages=497–506 |bibcode=1998A&A...339..497S |url=https://ui.adsabs.harvard.edu/abs/1998A%26A...339..497S |access-date=8 April 2022 |archive-date=2022-04-08 |archive-url=https://web.archive.org/web/20220408165655/https://ui.adsabs.harvard.edu/abs/1998A%26A...339..497S |dead-url=no }}</ref>
<ref name=EDR3>{{cite Gaia EDR3|164536250037820160}}</ref>
<ref name=SIMBAD>{{cite simbad |title=HD 283572|access-date=2021-11-01}}</ref>
}}

{{金牛座恆星}}
[[Category:金牛T星]]
[[Category:星周盤]]
[[Category:金牛座]]
[[Category:2MASS天體|J04215884+2818066]]
[[Category:以變星命名法命名的天體|金牛座, V987]]
[[Category: BD、CD和CP天體|BD+27 657]]
[[Category:HIP天體|020388]]
[[Category:HD和HDE天體|283572]]

HD 283572 - 版本历史

imported>InternetArchiveBot：​补救1个来源，并将0个来源标记为失效。) #IABot (v2.0.9.5) (落花有意12138 - 15026

imported>InternetArchiveBot：补救1个来源，并将0个来源标记为失效。) #IABot (v2.0.9.5) (落花有意12138 - 15026