4C +37.11 參考資 外部連結 导航菜单NASA/IPAC Extragalactic DatabaseScientists Find Closest Pair of Supermassive Black HolesAstronomers spot a pair of orbiting supermassive black holesVLBA Reveals Closest Pair of Supermassive Black HolesA Compact Supermassive Black-Hole Binary SystemBlack Hole Pair Sets Proximity RecordTwo black holes come oh-so-closeColossal black holes seen in closest clinch yetA Supermassive Black Hole PairingScientists Find Closest Pair of Supermassive Black HolesVLBA Reveals Closest Pair of Supermassive Black HolesClosest-spaced giant black hole pair found04h 05m 49.2s，+38°03′32″

英仙座橢圓星系電波星系超大質量黑洞4C天體


電波星系橢圓星系超大質量黑洞光年秒差距M☉類星體OJ 287重力波




body.skin-minerva .mw-parser-output table.infobox captiontext-align:center














4C +37.11
觀測資料 （J2000 曆元）
星座
英仙座
赤經
04h 05m 49.2s[1]
赤緯
+38° 03′ 32″[1]
紅移
16,500 ± 300 km/s[1]
距離
750 Mly (230 Mpc) [2]
類型
Sy[1]

視星等 (V)

17.2[1]
其他名稱

GLXY J0405+380 , B2 0402+37 , 2MASX J04054928+3803320 , RX J0405.8+3803

參見：星系、星系列表

4C +37.11或星系0402+379是一個電波星系和橢圓星系，特點是在2006年被直接觀測到擁有一對靠得很近的超大質量黑洞聯星。兩者之間的距離僅有24光年，或是7.3秒差距，互繞的軌道週期約30,000年。這一對超大質量黑洞距離地球約7億5000萬光年，合計的質量是150億M☉[3]。


在這之前直接觀察到的超大質量黑洞聯星最小的距離是2,400光年[來源請求]。雖然，類星體OJ 287的超大質量黑洞聯星軌道週期被推斷為12年，因此它們靠得極為接近，但並不是直接觀測到的。


這一對最終將會碰撞，並且釋放出強烈的重力波，但至少還要過上數百萬年，甚至更長的時間[3]。



參考資




  1. ^ 1.01.11.21.31.4 NASA/IPAC Extragalactic Database. Results for 0402+379. [26 November 2006]. 


  2. ^ Scientists Find Closest Pair of Supermassive Black Holes. PhysOrg.com. [15 March 2008]. 


  3. ^ 3.03.1 Klesman, Alison. Astronomers spot a pair of orbiting supermassive black holes. Astronomy Magazine. 29 June 2017. 


.mw-parser-output .refbeginfont-size:90%;margin-bottom:0.5em.mw-parser-output .refbegin-hanging-indents>ullist-style-type:none;margin-left:0.mw-parser-output .refbegin-hanging-indents>ul>li,.mw-parser-output .refbegin-hanging-indents>dl>ddmargin-left:0;padding-left:3.2em;text-indent:-3.2em;list-style:none.mw-parser-output .refbegin-100font-size:100%


  • VLBA Reveals Closest Pair of Supermassive Black Holes (UNM Today) 2 May 2006


  • A Compact Supermassive Black-Hole Binary System (Los Alamos National Laborator - LANL)



外部連結



  • Black Hole Pair Sets Proximity Record (SPACE.com) 1 May 2006 02:04 pm ET


  • Two black holes come oh-so-close (MSNBC) 5:23 p.m. ET 1 May 2006


  • Colossal black holes seen in closest clinch yet (New Scientist) 16:02 21 April 2006


  • A Supermassive Black Hole Pairing (Centauri Dreams)


  • Scientists Find Closest Pair of Supermassive Black Holes (PhysOrg.com) 1 May 2006


  • VLBA Reveals Closest Pair of Supermassive Black Holes (SpaceRef.com) Monday, 1 May 2006


  • Closest-spaced giant black hole pair found (SpaceFlight Now) 1 May 2006

天球赤道座標：星图04h 05m 49.2s，+38°03′32″







-

Popular posts from this blog

名間水力發電廠 目录 沿革 設施 鄰近設施 註釋 外部連結 导航菜单23°50′10″N 120°42′41″E / 23.83611°N 120.71139°E / 23.83611; 120.7113923°50′10″N 120°42′41″E / 23.83611°N 120.71139°E / 23.83611; 120.71139計畫概要原始内容臺灣第一座BOT 模式開發的水力發電廠－名間水力電廠名間水力發電廠 水利署首件BOT案原始内容《小檔案》名間電廠 首座BOT水力發電廠原始内容名間電廠BOT - 經濟部水利署中區水資源局编编

Image
東螺溪清水溪加走寮溪阿里山溪東埔蚋溪獅尾堀清水溪清水溝溪水里溪陳有蘭溪郡坑溪十八重溪那馬嘎班溪松柏坑溪卓棍溪瓠瓢坑溪益則坑溪玉崙溪丹大溪郡大溪巒大溪卡社溪栗栖溪萬大溪萬大北溪萬大南溪霧社溪塔羅灣溪馬赫坡溪萬大發電廠大觀發電廠日月潭第一發電所明潭發電廠...
Read more

Prove that NP is closed under karp reduction?Space(n) not closed under Karp reductions - what about NTime(n)?Class P is closed under rotation?Prove or disprove that $NL$ is closed under polynomial many-one reductions$mathbfNC_2$ is closed under log-space reductionOn Karp reductionwhen can I know if a class (complexity) is closed under reduction (cook/karp)Check if class $PSPACE$ is closed under polyonomially space reductionIs NPSPACE also closed under polynomial-time reduction and under log-space reduction?Prove PSPACE is closed under complement?Prove PSPACE is closed under union?

Image
Is a conference paper whose proceedings will be published in IEEE Xplore counted as a publication? Prove that NP is closed under karp reduction? Is it important to consider tone, melody, and musical form while writing a song? How is it possible to have an ability score that is less than 3? Can I make popcorn with any corn? Mathematical cryptic clues tikz: show 0 at the axis origin Minkowski space can i play a electric guitar through a bass amp? Why not use SQL instead of GraphQL? How can I prevent hyper evolved versions of regular creatures from wiping out their cousins? How old can references or sources in a thesis be? Do VLANs within a subnet need to have their own subnet for router on a stick? How to add double frame in tcolorbox? How much RAM could one put in a typical 80386 setup? "You are your self first supporter", a more proper way to say it How is the claim "I am in New York only if I am in America" the same as "If I am ...
Read more

Is my guitar’s action too high? Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)Strings too stiff on a recently purchased acoustic guitar | Cort AD880CEIs the action of my guitar really high?Μy little finger is too weak to play guitarWith guitar, how long should I give my fingers to strengthen / callous?When playing a fret the guitar sounds mutedPlaying (Barre) chords up the guitar neckI think my guitar strings are wound too tight and I can't play barre chordsF barre chord on an SG guitarHow to find to the right strings of a barre chord by feel?High action on higher fret on my steel acoustic guitar

Image
Is the Mordenkainen's Sword spell underpowered? Escaping $ in listings environment Short story about astronauts fertilizing soil with their own bodies No invitation for tourist visa but I want to visit Do regular languages belong to Space(1)? Can I take recommendation from someone I met at a conference? How to name indistinguishable henchmen in a screenplay? Found this skink in my tomato plant bucket. Is he trapped? Or could he leave if he wanted? How can I prevent/balance waiting and turtling as a response to cooldown mechanics Can I feed enough spin up electron to a black hole to affect it's angular momentum? Why does BitLocker not use RSA? Is my guitar’s action too high? Does GDPR cover the collection of data by websites that crawl the web and resell user data Trying to enter the Fox's den How to achieve cat-like agility? "Destructive power" carried by a B-52? Should man-made satellites feature an intelligent inverted "cow c...
Read more