https://arolstar52-zhtest.hf.space/index.php?action=history&feed=atom&title=WISE_0458%2B6434
WISE 0458+6434 - 版本历史
2026-07-19T11:08:24Z
本wiki上该页面的版本历史
MediaWiki 1.43.9
https://arolstar52-zhtest.hf.space/index.php?title=WISE_0458%2B6434&diff=939877&oldid=prev
2024年4月20日 (六) 09:38 imported>CYCcc
2024-04-20T09:38:29Z
<p></p>
<p><b>新页面</b></p><div>{{Sky|04|58|53.93|+|64|34|52.72|23.8}}<br />
{{Starbox begin<br />
|name=WISEPC J045853.90+643451.9}}<br />
{{Starbox image<br />
| image = [[Image:WISE2010-040-rotate180.jpg|250px]]<br />
| caption = WISE 0458+6434是中心的綠色小點<br />
}}<br />
{{Starbox observe<br />
|epoch=[[儒略日|MJD]] 55453.42<ref name="Kirkpatrick2011v1"/><br />
|equinox=[[J2000]]<ref name="Kirkpatrick2011v1"/><br />
|constell=[[鹿豹座]]<br />
|ra={{RA|04|58|53.93}}<ref name="Kirkpatrick2011v1">{{cite journal |doi=10.1088/0067-0049/197/2/19 |authorlink=J. Davy Kirkpatrick |last1=Kirkpatrick |first1=J. Davy |last2=Cushing |first2=Michael C. |last3=Gelino |first3=Christopher R. |last4=Griffith |first4=Roger L. |last5=Skrutskie |first5=Michael F. |last6=Marsh |first6=Kenneth A. |last7=Wright |first7=Edward L. |last8=Mainzer |first8=Amy K. |last9=Eisenhardt |first9=Peter R. |last10=McLean |first10=Ian S. |last11=Thompson |first11=Maggie A. |last12=Bauer |first12=James M. |last13=Benford |first13=Dominic J. |last14=Bridge |first14=Carrie R. |last15=Lake |first15=Sean E. |last16=Petty |first16=Sara M. |last17=Stanford |first17=Spencer Adam |last18=Tsai |first18=Chao-Wei |last19=Bailey |first19=Vanessa |last20=Beichman |first20=Charles A. |last21=Bloom |first21=Joshua S. |last22=Bochanski |first22=John J. |last23=Burgasser |first23=Adam J. |last24=Capak |first24=Peter L. |last25=Cruz |first25=Kelle L. |last26=Hinz |first26=Philip M. |last27=Kartaltepe |first27=Jeyhan S. |last28=Knox |first28=Russell P. |last29=Manohar |first29=Swarnima |last30=Masters |first30=Daniel |last31=Morales-Calderon |first31=Maria |last32=Prato |first32=Lisa A. |last33=Rodigas |first33=Timothy J. |last34=Salvato |first34=Mara |last35=Schurr |first35=Steven D. |last36=Scoville |first36=Nicholas Z. |last37=Simcoe |first37=Robert A. |last38=Stapelfeldt |first38=Karl R. |last39=Stern |first39=Daniel |last40=Stock |first40=Nathan D. |last41=Vacca |first41=William D. |title=The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE) |date=2011 |journal=[[The Astrophysical Journal Supplement]] |volume=197 |issue=2 |pages=19 |arxiv=1108.4677v1 |bibcode=2011ApJS..197...19K |s2cid=16850733 }}</ref><br />
|dec={{DEC|64|34|52.72}}<ref name="Kirkpatrick2011v1"/>}}<br />
<tr><th style="background-color: #FFFFC0;" colspan="2">Characteristics</th></tr><br />
<tr><th colspan="2">Whole system</th></tr><br />
<tr valign=top><td>'''[[視星等]] <small>(Y (FanCam))</small>'''</td><td>18.34 ± 0.07<ref name="Mainzer2010v1">{{cite journal |last=Mainzer |first=Amy K. |author2=Cushing, Michael C. |author3=Skrutskie, Michael F. |author4=Gelino, Christopher R. |author5=Kirkpatrick, J. Davy |author6=Jarrett, Thomas H. |author7=Masci, Frank |author8=Marley, Mark S. |author9=Saumon, Didier |author10=Wright, Edward L. |author11=Beaton, Rachael L. |author12=Dietrich, Matthias |author13=Eisenhardt, Peter R. |author14=Garnavich, Peter |author15=Kuhn, Olga |author16=Leisawitz, David T. |author17=Marsh, Kenneth A. |author18=McLean, Ian S. |author19=Padgett, Deborah |author20=Rueff, Katherine |title=The First Ultra-cool Brown Dwarf Discovered by the Wide-field Infrared Survey Explorer |year=2011 |journal=[[The Astrophysical Journal]] |volume=726 |issue=1 |pages=30 |arxiv=1011.2279 |doi=10.1088/0004-637X/726/1/30 |bibcode=2011ApJ...726...30M |s2cid=20700414 }}</ref></td></tr><br />
<tr valign=top><td>'''[[視星等]] <small>(J ([[2微米全天巡天|2MASS]] 測光系統))</small>'''</td><td>17.47 ± 0.05<ref name="Kirkpatrick2011v1"/></td></tr><br />
<tr valign=top><td>'''[[視星等]] <small>(H ([[2微米全天巡天|2MASS]] 測光系統))</small>'''</td><td>17.41 ± 0.06<ref name="Kirkpatrick2011v1"/></td></tr><br />
<tr><th colspan="2">A</th></tr><br />
<tr valign=top><td>'''[[恆星光譜|光譜類型]]'''</td><td>T8.5<ref name="Gelino2011v1"/></td></tr><br />
<tr valign=top><td>'''[[視星等]] <small>(J ([[毛納基山天文台|MKO]] 測光系統))</small>'''</td><td>17.50 ± 0.09<ref name="Gelino2011v1"/></td></tr><br />
<tr valign=top><td>'''[[視星等]] <small>(H ([[毛納基山天文台|MKO]] 測光系統))</small>'''</td><td>17.81 ± 0.13<ref name="Gelino2011v1"/></td></tr><br />
<tr><th colspan="2">B</th></tr><br />
<tr valign=top><td>'''[[恆星光譜|光譜類型]]'''</td><td>T9<ref name="Gelino2011v1"/></td></tr><br />
<tr valign=top><td>'''[[視星等]] <small>(J ([[毛納基山天文台|MKO]] 測光系統))</small>'''</td><td>18.48 ± 0.12<ref name="Gelino2011v1"/></td></tr><br />
<tr valign=top><td>'''[[視星等]] <small>(H ([[毛納基山天文台|MKO]] 測光系統))</small>'''</td><td>18.81 ± 0.17<ref name="Gelino2011v1"/></td></tr><br />
{{Starbox astrometry<br />
|prop_mo_ra=185 ± 141<ref name="Kirkpatrick2011v1"/><br />
|prop_mo_dec=118 ± 149<ref name="Kirkpatrick2011v1"/><br />
|dist_ly=30.1 ± 4.6<ref name="Gelino2011v1"/><br />
|dist_pc=10.5 ± 1.4<ref name="Gelino2011v1"/>}}<br />
{{Starbox orbit<br />
| reference = <ref name="Gelino2011v1"/><br />
| primary = A<br />
| name = B<br />
| period = ~70<ref name="note 1" group="note">假設系統年齡10億年。</ref><br />
}}<br />
{{Starbox detail<br />
|component1= A<br />
|mass_mj=15<ref name="Gelino2011v1"/><ref name="note 1" group="note"/><br />
|gravity=5.0—5.5<ref name="Mainzer2010v1"/><ref name="note 2" group="note">這個預測與WISE 0458+6434有關（並非編號 '''A''' 成員星），是不知道該系統為聯星時預測的。</ref><br />
|temperature=600<ref name="Gelino2011v1"/><ref name="note 1" group="note"/><br />
|metal=0 (<nowiki>[Fe/H]</nowiki>)<ref name="Mainzer2010v1"/><ref name="note 2" group="note"/><br />
|component2=B<br />
|mass_mj2=10<ref name="Gelino2011v1"/><ref name="note 1" group="note"/><br />
|temperature2=500<ref name="Gelino2011v1"/><ref name="note 1" group="note"/>}}<br />
{{Starbox relpos<br />
| epoch = [[世界时|UT]] 2010年3月24日<br />
| primary = A<br />
| component = B<br />
| angdistmas = 510 ± 20<br />
| angdistref = <ref name="Gelino2011v1"/><br />
| posang = 320 ± 1<br />
| posangref = <ref name="Gelino2011v1"/><br />
| projsep = 5 ± 0.4<br />
| projsepref = <ref name="Gelino2011v1"/><br />
}}<br />
{{Starbox catalog<br />
|names=WISEPA J045853.89+643452.9,<ref name="Kirkpatrick2011v1"/> WISE J0458+6434,<ref name="Kirkpatrick2011v1"/> WISE 0458+6434<ref name="Kirkpatrick2011v1"/>}}<br />
{{Starbox end}}<br />
<br />
'''WISE 0458+6434'''，全稱'''WISEPC J045853.90+643451.9'''，是由兩顆（編號分別加上 '''A''' 和 '''B'''）極低溫[[棕矮星]]組成的[[聯星]]系統，[[恆星光譜|光譜類型]]分別是T8.5和T9<ref name="Gelino2011v1">{{cite journal |last=Gelino |first=Christopher R. |author2=Kirkpatrick, J. Davy |author3=Cushing, Michael C. |author4=Eisenhardt, Peter R. |author5=Griffith, Roger L. |author6=Mainzer, Amanda (Amy) K. |author7=Marsh, Kenneth A. |author8=Skrutskie, Michael F. |author9=Wright, Edward L. |title=WISE Brown Dwarf Binaries: The Discovery of a T5+T5 and a T8.5+T9 System |year=2011 |journal=[[The Astronomical Journal]] |volume=142 | issue=2 | pages=57 |arxiv=1106.3142 |doi=10.1088/0004-6256/142/2/57 |bibcode=2011AJ....142...57G|s2cid=51345460 }}</ref>。位於[[鹿豹座]]。<br />
<br />
==概要==<br />
這個棕矮星聯星系統是2011年[[廣域紅外線巡天探測衛星]]最早發現的104個棕矮星系統之中<ref name="Mainzer2010v1"/><ref name="Kirkpatrick2011v1"/>兩個棕矮星聯星系統的其中一個（另一個是 [[WISE 1841+7000]]）<ref name="Gelino2011v1"/>。一開始並未發現這是聯星系統，與地球距離預測是6到10秒差距<ref name="Mainzer2010v1"/>（18到30光年<ref>{{Cite web |url=http://www.centauri-dreams.org/?p=15250 |title=WISE: First Ultra-cool Brown Dwarf |access-date=2012-03-30 |archive-date=2017-01-18 |archive-url=https://web.archive.org/web/20170118180522/http://www.centauri-dreams.org/?p=15250 }}</ref>，更明確的數據是19.6到32.6光年）。事實上距離的量測結果是由兩種方式取得的：[[分光光度法]]（6到8秒差距，或19.6到26.1光年<ref name="Mainzer2010v1"/>）和[[測光 (天文學)|測光]]（9.0 ± 1.9秒差距或29.4 ± 6.2光年）。接著[[凱克天文台|凱克Ⅱ]]使用了[[雷射導引星]]－[[自适应光学]]系統對該系統進行近紅外線攝影後確定WISE 0458+6434是聯星系統<ref name="Gelino2011v1"/>，距離量測值改為10.5 ± 1.4秒差距或34.2 ± 4.6光年<ref name="Gelino2011v1"/>（不過，[[戴維·柯克帕特里克]]等人於2011年宣稱的量測距離是12.3 ± 2.3秒差距或40.1 ± 7.5光年<ref name="Kirkpatrick2011v1"/>。）。另一個測光估計出來的距離是7.3秒差距（23.8光年）<ref name="Kirkpatrick2011v1"/>，但這量測是假設該系統並非聯星的結果。系統成員星的表面溫度分別是600 [[Kelvin|K]] 或327 [[攝氏|°C]]（'''A'''）<ref name="Gelino2011v1"/>和500 [[Kelvin|K]] 或227 [[攝氏|°C]]（'''B'''）<ref name="Gelino2011v1"/>；且表面溫度都比金星低。而這兩顆恆星的光譜屬於T型和Y型的交界附近<ref name="Cushing2011v1">{{cite journal |last1=Cushing |first1=Michael C. |title=The Discovery of Y Dwarfs using Data from the Wide-field Infrared Survey Explorer (WISE) |year=2011 |doi=10.1088/0004-637X/743/1/50 |bibcode=2011ApJ...743...50C|journal=The Astrophysical Journal |volume= 743 |pages=50 |number =1 |last2=Kirkpatrick |first2=J. Davy |last3=Gelino |first3=Christopher R. |last4=Griffith |first4=Roger L. |last5=Skrutskie |first5=Michael F. |last6=Mainzer |first6=Amy K. |last7=Marsh |first7=Kenneth A. |last8=Beichman |first8=Charles A. |last9=Burgasser |first9=Adam J. |last10=Prato |first10=Lisa A. |last11=Simcoe |first11=Robert A. |last12=Marley |first12=Mark S. |last13=Saumon |first13=D. |last14=Freedman |first14=Richard S. |last15=Eisenhardt |first15=Peter R. |last16=Wright |first16=Edward L. |arxiv = 1108.4678 |s2cid=286881 }}</ref>。WISE J0458+6434的成員星光譜類型並非Y型，而同為晚期T型。<br />
<br />
==參見==<br />
*[[WISE 1841+7000]]<br />
<br />
==注釋==<br />
<references group="note" /><br />
<br />
==參考資料==<br />
{{reflist|colwidth=30em}}<br />
<br />
{{位于30-35光年范围内的恒星系统}}<br />
{{鹿豹座恆星}}<br />
<br />
[[Category:棕矮星]]<br />
[[Category:Y型恒星]]<br />
[[Category:鹿豹座]]<br />
[[Category:WISE天體]]</div>
imported>CYCcc