YZ Canis Minoris

YZ Canis Minoris
Observationsdata
Epok: J2000.0
StjärnbildLilla hunden
Rektascension07t 44m 40,17230 s[1]
Deklination+03° 33′ 08,8752 ″[2]
Skenbar magnitud ()11,15[3]
Stjärntyp
SpektraltypM5 V[4]
B–V+1,61[3]
VariabeltypFlarestjärna[5]
Astrometri
Radialhastighet ()+26,53 ± 0,30[6] km/s
Egenrörelse (µ)RA: -347,782[1] mas/år
Dek.: -445,702[1] mas/år
Parallax ()166,9769 ± 0,0343[1]
Avstånd19,533 ± 0,004  (5,989 ± 0,001 pc)
Absolut magnitud ()+12,32[7]
Detaljer
Massa0,308[8] M
Radie0,324[8] R
Luminositet0,012[1] L
Temperatur3 125 ± 61[9] K
Metallicitet-0,26 ± 0,08[9]
Vinkelhastighet+4,0[10] km/s
Ålder49[11] miljoner år
Andra beteckningar
HIP 37766, AP J07444018+0333089, 2E 1871, EUVE J0744+03.5, G 50-4, G 112-46, GJ 285, GSC 00183-02190, HIC 37766, IRAS 07420+0340, LHS 1943, LSPM J0744+0333, 2MASS J07444018+0333089, NLTT 18373, PLX 1827, 2RE J0744+033, 2RE J074440+033329, 1RXS J074439.7+033245, TYC 183-2190-1, UCAC2 33030334, UCAC4 468-034923, USNO-B1.0 0935-00153510, YZ Canis Minoris, WDS J07447+0333A, WISEA J074439.92+033304.2, [GKL99] 172, Gaia DR3 3136952686035250688, Gaia DR2 3136952686035250688[12][13]

YZ Canis Majoris är en ensam stjärna i den mellersta delen av stjärnbilden Lilla hunden. Den har en skenbar magnitud av ca 11,15[3] och kräver ett teleskop för att kunna observeras. Baserat på parallax enligt Gaia Data Release 3 på ca 167 mas,[2] beräknas den befinna sig på ett avstånd på ca 19,5 ljusår (ca 6 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på 26 km/s.[6] Den befann sig närmast solen för cirka 162 000 år sedan när den gjorde periheliumpassage på ett avstånd av 10,2 ljusår.[14] Den är potentiell medlem av rörelsegruppen Beta Pictoris.[15]

Egenskaper

YZ Canis Minoris är en orange till röd dvärgstjärna i huvudserien av spektralklass M5 V.[4] Den har en massa som är ca 0,31[8] solmassa, en radie som är ca 0,32[8] solradie och har ca 0,012[1] gånger solens utstrålning av energi från dess fotosfär vid en effektiv temperatur av ca 3 100 K.[9]

Ljuskurva för YZ Canis Minoris från TESS-data, anpassad från Maehara et al. (2021).[2] Huvuddiagrammet visar både den periodiska ljusstyrkan och flera flare. Det infällda diagrammet visar den starkaste flaren med en utökad tidsskala.

YZ Canis Minoris är en flarestjärna med kraftigare stjärnutbrott än de hos solen, och är ungefär tre gånger så stor som Jupiter.[5] Radiostrålningen från stjärnan i 50 mHz bandbredd är centrerad på 1464,9 mHz.[16] Röntgenstrålningen från stjärnan är 2,73 × 106 erg/s cm2. Den har en koronatemperatur på 5,79 x 106 K.[17]

Referenser

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, YX Canis Minoris, 29 januari 2023..

Noter

  1. ^ [a b c d e f] Vallenari, A.; et al. (Gaia Collaboration) (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. arXiv:2208.00211. doi:10.1051/0004-6361/202243940. Gaia DR3 record for this source at VizieR.
  2. ^ [a b c] Maehara, Hiroyuki; Notsu, Yuta; Namekata, Kousuke; Honda, Satoshi; Kowalski, Adam F.; Katoh, Noriyuki; Ohshima, Tomohito; Iida, Kota; Oeda, Motoki; Murata, Katsuhiro L.; Yamanaka, Masayuki; Takagi, Kengo; Sasada, Mahito; Akitaya, Hiroshi; Ikuta, Kai; Okamoto, Soshi; Nogami, Daisaku; Shibata, Kazunari (February 2021). "Time-resolved spectroscopy and photometry of M dwarf flare star YZ Canis Minoris with OISTER and TESS: Blue asymmetry in the Hα line during the non-white light flare". Publications of the Astronomical Society of Japan. 73 (1): 44–65. arXiv:2009.14412. Bibcode:2021PASJ...73...44M. doi:10.1093/pasj/psaa098.
  3. ^ [a b c] Astudillo-Defru, N.; et al. (April 2017). "Magnetic activity in the HARPS M dwarf sample. The rotation-activity relationship for very low-mass stars through R'(HK)". Astronomy & Astrophysics. 600: 15. arXiv:1610.09007. Bibcode:2017A&A...600A..13A. doi:10.1051/0004-6361/201527078. S2CID 119237202. A13.
  4. ^ [a b] West, Andrew A.; et al. (October 2015). "An Activity-Rotation Relationship and Kinematic Analysis of Nearby Mid-to-Late-Type M Dwarfs". The Astrophysical Journal. 812 (1): 12. arXiv:1509.01590. Bibcode:2015ApJ...812....3W. doi:10.1088/0004-637X/812/1/3. S2CID 17434970. 3.
  5. ^ [a b] "First flares on a distant star". New Scientist: 305. 4 februari 1982.
  6. ^ [a b] Nidever, David L.; et al. (August 2002). "Radial Velocities for 889 Late-Type Stars". The Astrophysical Journal Supplement Series. 141 (2): 503–522. arXiv:astro-ph/0112477. Bibcode:2002ApJS..141..503N. doi:10.1086/340570. S2CID 51814894.
  7. ^ Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. S2CID 119257644.
  8. ^ [a b c d] Newton, Elisabeth R.; et al. (January 2017). "The Hα Emission of Nearby M Dwarfs and its Relation to Stellar Rotation". The Astrophysical Journal. 834 (1): 13. arXiv:1611.03509. Bibcode:2017ApJ...834...85N. doi:10.3847/1538-4357/834/1/85. S2CID 55000202. 85.
  9. ^ [a b c] Gaidos, Eric; Mann, Andrew W. (August 2014). "M dwarf metallicities and giant planet occurrence: ironing out uncertainties and systematics". The Astrophysical Journal. 791 (1): 9. arXiv:1406.4071. Bibcode:2014ApJ...791...54G. doi:10.1088/0004-637X/791/1/54. S2CID 118744016. 54.
  10. ^ Reiners, Ansgar; et al. (2018). "The CARMENES search for exoplanets around M dwarfs. High-resolution optical and near-infrared spectroscopy of 324 survey stars". Astronomy and Astrophysics. 612: A49. arXiv:1711.06576. Bibcode:2018A&A...612A..49R. doi:10.1051/0004-6361/201732054. S2CID 62818673.
  11. ^ Meshkat, Tiffany; et al. (December 2017). "A Direct Imaging Survey of Spitzer-detected Debris Disks: Occurrence of Giant Planets in Dusty Systems". The Astronomical Journal. 154 (6): 21. arXiv:1710.04185. Bibcode:2017AJ....154..245M. doi:10.3847/1538-3881/aa8e9a. S2CID 42042014. 245.
  12. ^ YZ CMi (unistra.fr). Hämtad 2023-06-13.
  13. ^ "YZ CMi". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 26 augusti 2018.
  14. ^ Bailer-Jones, C. A. L. (March 2015). "Close encounters of the stellar kind". Astronomy & Astrophysics. 575: 13. arXiv:1412.3648. Bibcode:2015A&A...575A..35B. doi:10.1051/0004-6361/201425221. S2CID 59039482. A35.
  15. ^ Nakajima, Tadashi; Morino, Jun-Ichi (January 2012). "Potential Members of Stellar Kinematic Groups within 30 pc of the Sun". The Astronomical Journal. 143 (1): 2. Bibcode:2012AJ....143....2N. doi:10.1088/0004-6256/143/1/2.
  16. ^ Lang, K. R. (October 23–27, 1989). "Flare stars at radio wavelengths". In Mirzoyan, L.V. (ed.). Flare Stars in Star Clusters, Associations, and the Solar Vicinity: Proceedings of the 137th Symposium of the International Astronomical Union. Byurakan (Armenia), U.S.S.R.: Springer (published 1990). pp. 127–130. ISBN 978-0-7923-0771-6.
  17. ^ Johnstone, C. P.; Güdel, M. (June 2015), "The coronal temperatures of low-mass main-sequence stars", Astronomy & Astrophysics, 578: 4, arXiv:1505.00643, Bibcode:2015A&A...578A.129J, doi:10.1051/0004-6361/201425283, S2CID 117151984, A129

Externa länkar

Read other articles:

Este artículo o sección necesita referencias que aparezcan en una publicación acreditada.Este aviso fue puesto el 14 de junio de 2013. Ni Hao, Kai-Lan Serie de televisión Género Serie animada Infantil FantasíaProtagonistas Jade-Lianna PetersClem CheungBen WangJack Samson Khamani Griffin Angie Wu País de origen  Estados UnidosCanadá CanadáIdioma(s) original(es) InglésN.º de temporadas 2N.º de episodios 40ProducciónDuración 30 minutosLanzamientoMedio de difusión Nick Jr...

 

Ісляндія. Льодовики Найбільший льодовик Ісляндії — Ватнайокутль Льодовики та крижані шапки Ісландії займають 11% площі суходолу країни (близько 11 400 км² від загальної площі 103,125 км²) та мають значний вплив на ландшафт та метеорологію країни. Льодовики також вносять свій вн

 

كومودورو ريفادافيا Downtown Comodoro Rivadavia Official seal of Comodoro Rivadaviaشعار اللقب The Capital of the Wind الشعار: A city with energy. الاسم الرسمي Comodoro Rivadavia الإحداثيات 45°51′53″S 67°28′51″W / 45.86472°S 67.48083°W / -45.86472; -67.48083 تأسس 1901 تقسيم إداري  بلد Argentina  محافظة Chubut  قسم Escalante الحكومة  رئيس البلدي...

Болгарський народний банк Штаб-квартира Софія,  БолгаріяДата заснування 25 січня 1879Президент (голова) Димитър РадевКраїна  БолгаріяВебсайт www.bnb.bgВалюта болгарський лев  Болгарський народний банк у Вікісховищі Болгарський народний банк (болг. Българска народна б...

 

  关于与「生存遊戲 (電子遊戲)」標題相近或相同的条目,請見「生存游戏」。   提示:此条目的主题不是大逃殺遊戲或射擊類生存遊戲。 以Minecraft的生存模式为例子 生存遊戲是動作遊戲的一個子類,多設置在隨機或以腳本生成的開放、持久世界(英语:Persistent world)中。玩家在遊戲開始時通常只有極少的裝備,並需要收集資源、工具、武器和建造住所,以儘

 

Stepwells are wells in which the water is reached by steps. They are most commonly found in western India especially Gujarat where over 120 such wells are reported. The origin of the stepwell may be traced to reservoirs of the cities of the Indus Valley civilization such as Dholavira and Mohenjo-daro. The stepwells were constructed in the south western region of Gujarat around 600 AD. From there they spread north to Rajasthan and subsequently to north and west India. Construction activities a...

Artikel ini perlu diwikifikasi agar memenuhi standar kualitas Wikipedia. Anda dapat memberikan bantuan berupa penambahan pranala dalam, atau dengan merapikan tata letak dari artikel ini. Untuk keterangan lebih lanjut, klik [tampil] di bagian kanan. Mengganti markah HTML dengan markah wiki bila dimungkinkan. Tambahkan pranala wiki. Bila dirasa perlu, buatlah pautan ke artikel wiki lainnya dengan cara menambahkan [[ dan ]] pada kata yang bersangkutan (lihat WP:LINK untuk keterangan lebih lanjut...

 

Voce principale: Servizi segreti italiani. La storia dei servizi segreti italiani descrive l'evoluzione dei servizi segreti italiani, dall'unità d'Italia a oggi. Il primo vero servizio segreto dello Stato italiano unitario fu, nel 1925, il Servizio informazioni militare (SIM), di impostazione militare, che iniziò a utilizzare anche membri dell'Arma dei Carabinieri nelle proprie fila, i servizi di intelligence militare del secondo dopoguerra con il SIFAR prima e il Servizio informazioni dife...

 

The Manassas Gap Railroad (MGRR) ran from Mount Jackson, Virginia, to the Orange and Alexandria Railroad's Manassas Junction, which later became the city of Manassas, Virginia. Chartered by the Virginia General Assembly in 1850, the MGRR was a 4 ft 8 in (1,422 mm) narrow gauge line whose 90 completed miles of track included 38 miles (61 km) of 60 pounds-per-yard T-rail and 52 miles (84 km) of 52 pounds-per-yard T-rail. A total of nine locomotives and 232 cars wer...

صندلى غاوميشي صندلي گاوميشي  - قرية -  تقسيم إداري البلد  إيران[1] المحافظة محافظة خوزستان المقاطعة مقاطعة رامز الناحية القسم المركزي القسم الريفي قسم الريف الغربي الريفي إحداثيات 31°12′00″N 49°34′00″E / 31.2°N 49.566667°E / 31.2; 49.566667 السكان التعداد السكاني...

 

Former broadcasting tower in Berlin You can help expand this article with text translated from the corresponding article in German. Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Consider adding a topic to this...

 

Payment method for public transport in London This article's factual accuracy may be compromised due to out-of-date information. The reason given is: Generally OK, but a lot of details have changed. Please help update this article to reflect recent events or newly available information. (March 2023) It has been suggested that Oyster card (pay as you go) on National Rail be merged into this article. (Discuss) Proposed since August 2023. For other uses, see Oyster (disambiguation). Oyster cardL...

CSX railroad line in Florida vteYeoman Subdivision Legend CSX S Line (Wildwood Subdivision) S 808.0 Zephyrhills S 811.4 Crystal Springs S 818.5 Knights I-4 S 822.8 Sandler Junction S 823.1 Plant City CSX A Line (Lakeland Subdivision) S 823.2 Lake Wales Junction CSX Plant City Subdivision S 827.4 Turkey Creek former Florida West Shore Railway (SAL)to Sarasota S 829.5 Sydney CSX Valrico Subdivision S 832.5 Valrico S 834.8 Brandon I-75 S 839.2 YN CSX S Line (Tampa Terminal Subdivision)...

 

Lodewijk Freidrich PaulusWakil Ketua Dewan Perwakilan RakyatBidang Politik dan KeamananPetahanaMulai menjabat 30 September 2021 (2021-09-30)PresidenJoko WidodoKetuaPuan MaharaniPendahuluAzis SyamsuddinDaerah pemilihanLampung IAnggota Dewan Perwakilan Rakyat Republik IndonesiaPetahanaMulai menjabat 1 Oktober 2019 (2019-10-01)PresidenJoko WidodoKetuaPuan MaharaniGrup parlemenFraksi Partai Golongan KaryaDaerah pemilihanLampung IMayoritas35.199 (2019)Sekretaris Jenderal Partai G...

 

Ultimate team from California, US Oakland SpidersSportUltimateFounded2014LeagueAmerican Ultimate Disc LeagueDivisionWestBased inOakland, CaliforniaStadiumFremont High School (in Oakland)Head coachDan SilversteinChampionships2(2014, 2015)Division titles2(2014, 2015)Playoff berths3(2014, 2015, 2017)Websiteoaklandspiders.com The Oakland Spiders are a professional ultimate team based in Oakland, California. The Spiders are members of the West Division of the American Ultimate Disc League (AUDL). ...

American film director (born 1952) Chuck LorreLorre in 2013BornCharles Michael Levine (1952-10-18) October 18, 1952 (age 71)Plainview, New York, U.S.Occupation(s)Director, writer, producer, composerYears active1989–presentSpouses Paula Smith ​ ​(m. 1979; div. 1992)​ Karen Witter ​ ​(m. 2001; div. 2010)​ Arielle Mandelson ​ ​(m. 2018; div. 2022)&...

 

Questa voce sull'argomento centri abitati del Rio de Janeiro è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Conceição de Macabucomune Conceição de Macabu – Veduta LocalizzazioneStato Brasile Stato federato Rio de Janeiro MesoregioneNorte Fluminense MicroregioneMacaé AmministrazioneSindacoLídia Mercedes Oliveira Soares (PT) TerritorioCoordinate22°05′06″S 41°52′08″W / 22.085°S 41.868889°W-22.085; -41.8688...

 

For other ships with the same name, see USS Yukon. USS Yukon, circa in 1921 History United States NameUSS Yukon NamesakeYukon River in Alaska BuilderMoore Shipbuilding Company, Oakland, California Laid down1920, as SS Mehanno Acquired14 November 1921 Commissioned6 December 1921, as USS Yukon (AF-9) Decommissioned14 April 1922 Recommissioned19 January 1940 Decommissioned18 March 1946 Stricken17 April 1946 FateSold for scrapping, 29 July 1946 General characteristics Class and typeArctic-class s...

Stone quarry on the Isle of Portland, Dorset, England The entrance to Coombefield Quarry Coombefield Quarry is an active stone quarry located on the Isle of Portland, Dorset, England. It is situated near the island's southernmost village Southwell. The large quarry has been worked over many years, and has two voids known as Coombefield North and Coombefield South. The quarry today incorporates the former Suckthumb Quarry, which is situated at the northwest part of the quarry, and is now fille...

 

2016 National Football League season This article is about the American football season in the United States. For the Gaelic football season in Ireland, see 2016 National Football League (Ireland). 2016 NFL seasonRegular seasonDurationSeptember 8, 2016 (2016-09-08) – January 1, 2017 (2017-01-01)PlayoffsStart dateJanuary 7, 2017AFC ChampionsNew England PatriotsNFC ChampionsAtlanta FalconsSuper Bowl LIDateFebruary 5, 2017SiteNRG Stadium, Houston ChampionsNew Engl...

 

Strategi Solo vs Squad di Free Fire: Cara Menang Mudah!