luhman 16

sooryanil ninnu ekadesham akaleyulla thekkan nakshathrasamoohamaaya velayile oru bainari braun-dwarf sistamaanu luhman 16 (budhiparamaayi 1049−5319, budhiparamaayi j104915.57 − 531906.1). 1916-ll barnard nakshathratthinte sariyaaya chalanam alannathinushesham kandethiya ettavum aduthulla braun kullanmaarum suryanodu ettavum aduthulla moonnaamathe sistavumaanu iva (alfa centori systethinum barnard nakshathrathinum sesham). praadhamikam spectral tharam l7.5 umm dvitheeya tharam (athinaal ithu l-t parivarthanatthinu sameepamaan). luhman 16 eiii, bii ennivayude pindam yathaakramam 33.5,28.6 jupittar pindamaanu, avayude praayam <aii. dii. 1> dasalaksham varshamaanennu kanakkaakkappedunnu. loohmann 16 eiii, bii enniva ekadesham 27 varshathe bhramanakalamulla ekadesham 3.5 jyotishaasthra yoonittukalude akalatthil parasparam parikramanam cheiyunnu.
kandethal.
wide feeld infrared sarway explorer (budhiparamaayi) bhoomiye parikramanam cheiyunna upagrahamaaya naasa infrared-tharamgadairkhya bahirakasha dooradarshini, 2009 desember muthal 2011 februvari vare neenduninna oru dauthyathil ninnu braun kullanmaare pensylvania stettu yooniversittiyile jyothishaasthranjanum penn stettu sentar phoor exoplaanattukalileyum vaasayogyamaya lokangalileyum gaveshakanumaaya kevin luhman kandethi; kandethal chithrangal 2010 januvari muthal 2011 januvari vare eduthathaanu, 2013 ll eee kandethal prakhyaapichu (eee jody maathramaan kandethal pepparil prakhyaapicha rund vasthukkal). uyarnna sariyaaya chalanangalulla vasthukkale velippeduthunnathinaayi vividha yugangalile njaanaparamaaya chithrangal thaarathamyam cheythaanu eee samvidaanam kandethiyathu.
nakshatrangalaal janasaandrathayulla thaaraapathatthinu sameepam aakaashat luhman 16 prathyakshappedunnu; prakasha srothassukalude samriddhi mangiya vasthukkale kandethunnathu budhimuttaakkunnu. munkaala thirachilukalil suryanodu ithrayum aduthulla oru vasthu kandethaathirunnath enthukondaanennu ithu vishadeekarikkunnu.
koottukaarante kandethal.
sisttathinte randaamathe gadakavum 2013 ll luhman kandethukayum primery enna athe lekhanathil prakhyapikkukayum cheythu. aii"-baandile athinte kandethal chithram 2013 februvari 23 nuu ratri chiliyile jemini southu telescopyle jemini multy-object spectrograph (gmos) upayogichaanu eduthathu. sisttathinte gadakangal 1.5 arck second koneeya doorathil pariharikkapettu, ithu 3 aou enna project verthirikkalinum 0.45 maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maagu maaga
munkootty.
aii. dii. 1ll edutha chithrangalil eee samvidaanam aadyamaayi kandethiyenkilum pinneedu digitalised skye sarway (dii. ezz. ezz, 1978 (aii. aarr) & 1992 (redu)), infrared jyotishaasthra upagraham (aii. aarr. ezz, 1983), esso shmidt dooradarshini (1984 (redu)), guide staar kaattalog (jii. ezz. sii, 1995), thekkan aakaashathe infrared surveik sameepam (denis, 1999), rund micron ool-skye sarway (2 maas, 1999), akkari upagraham (2007) ennivayil ninnu ithu munkootty kandethi.
1984ll edutha eeso shmidt dooradarshini chithratthil, uravidam 138° sthaana konode neelamullathaayi kaanapedunnu. eee sthaana konum gmos chithratthile (yugam 2013) pariharikkapetta jodiyum thammilulla saamyam. saamyam 1984num edayilulla kaalayalav sisttathinte bhramanakaalavumaayi aduthaayirikkaamennu luhman (2013) soochippikkunnu (luhman (2013) kanakkakkiya yadhaartha bhramanakala kaalayalavil ninnu valare akaleyalla).
peru.
eric iii. luhman 16eiii, luhman luhman ennee gadakangal ulkkollunna luhman 16 enna peru mamajek eee samvidaanathinu nirddeshichu. pathivayi update cheiyunna washington double staar kaattalogil (dablyu. dii. ezz) ninnaan eee peru uthbhavichath. kevin luhman ithinakam bainari nakshathrangalude niravadhi puthiya kandethalukal prasidheekarichittundu, avaa discovery identifier "luh" upayogichu dablyu. dii. esil samaaharichittund. dablyu. dii. ezz kaattalog ippol eee systethe identifier 10493−5319, discover padavi luh 16 enniva upayogichu pattikappedutthunnu.
budhiyulla j104915.57 − 531906.1 nekkaal loohmann 16 oormmikkaan eluppamaanennum "eee vasthuvine 24-aksharangalulla peru (space ulppeduthiyirikkunnu) vilikkunnathu viddithamaanennu thonnunnu" ennathumaanu yukthi. phoon nambar namangalil" vais vais umm vais 1049−5319 umm ulppedunnu. mattoru badalaayi luhman-vais 1 nirddeshikkappettu.
oru bainari object enna nilayil ithine luhman luhman ennum vilikkunnu.
astrometry.
aakaashat sthaanam.
dakshina aakasha ardhagolathil vela nakshathrasamoohathilaanu luhman 16 sthithi cheiyunnathu. 2015 joolaiyile kanakkanusarichu, sourayoodhathinu purathulla eee nakshathrasamoohathile ettavum aduthariyappedunna khagolavasthukkalaanu athinte gadakangal. athinte aakashakonidettukal r =, dc =.
akalam.
sahalman & lazorengo (2015) prasidheekaricha luhman 16-nte trikonamitheeya paralax arxec aanu, ithu doorathinu anusrithamaanu.
sourayoodhavumaayi saameepyam.
nilavil triple alfa centori systethinum (4.37 lye) barnard staarinum (5.98 lye) sesham suryanodu ettavum aduthariyunna moonnaamathe nakshatram/braun-dwarf sistamaanu luhman 16, chennaaya 359 (7.78 lye) neey anchaam sthaanathekku thallunnu, athodoppam jnjaaniyaaya 0855−714-nte kandethalum. ithinu niravadhi recordukalum undu ettavum aduthulla braun dwarf, ettavum aduthulla ell-type dwarf, orupakshe ettavum aduthulla tii-type dwarf (ghadakam bii tii-type aanenkil).
alfa centoriyude saameepyam.
alfa centori abil ninnum proxima centoriyil ninnum sthithi cheiyunna alfa centoric ettavum aduthulla ariyappedunna nakshatram/braun-dwarf sistamaanu luhman 16. rund samvidaanangalum bhoomiyil ninnu kaanunnathupole aakaashathinte ore bhaagathulla ayal nakshathrasamoohangalilaanu sthithicheyyunnathu, ennaal luhman 16 kurachukoodi akaleyaan. luhman 16-nte kandethalinu munbu, alfa centoriyude ettavum aduthariyappedunna sistamaayirunnu sourayoodham.
alfa centori systethekkaal bhoomiyil ninnu kooduthal akaleyaan luhman 16 sthithicheyyunnathu enna vastutha undaayirunnittum, bhoomiyeppole thanne luhman 16 alfa centori abinekkaal proxima centoriyumaayi kooduthal aduthaanu. bhoomiyude aakaashathile alfa centori abinekkaal proxima sentoriyilekku luhman 16 nuu cheria koneeya dooramundenna vasthuthayil ithu prathifalikkunnu, ithu luhman 16 muthal alfa centori vareyulla dhoora vyathyaasathin avayum bhoomiyum thammilulla dhoora vyathyaasathekkaal kooduthal sambhavana nalkunnu.
sariyaaya chalanam.
garsia mattullavarum prasidheekaricha luhman 16-nte sariyaaya chalanam."(2017), ekadesham 2.79 ′′/varsham aanu, ithu luhman 16-nte saameepyam kaaranam thaarathamyena valuthaanu.
radial vegatha.
radial vegatha is, radial vegatha is. radial vegathayude moolyangal positteev aayathinal, sisttam nilavil sourayoodhathil ninnu akannupookunnu.
gadakangalude eee moolyangalum, sahalman & lazorengo (2015) 0.78 enna pinda anupaathavum kanakkiledukkumbol, sisttathinte baarisentar radial vegatha ekadesham aanu. ekadesham 36,000 varshangalkk munbu sourayoodham kuranjathu ekadesham oru kilometer akalatthil kadannupoyi ennaanu ithu soochippikkunnathu.
bhramanapathavum pindove.
luhman 16-nte yadhaartha kandethal prabandhatthil, luhman "thudangiyava."(2013) athinte gadakangalude bhramanakalam ekadesham 25 varshamaanennu kanakkakki.
garzia "thudangiyava."(2017), 31 varshathilere neendunilkkunna archival nireekshanangal upayogichu, 3.54 aou enna ardha-pradhana achuthandulla 27.4 varshathe bhramanakaalakhattam kandethi. eee bhramanapathathinu 0.35 enna vikendrathayum 79.5 digri cherivum undu. gadakangalude pindam yathaakramam 0.82 aanennu kandethi.
2018-leeii "gia" "gia" ninnulla daatta upayogichu, avayude bhramanapatham varshangalude oru kaalayalavilekku parishkarichu, ardha-pradhana achuthandu, vikendrata, (2017-leeii patanam kandethiyathupole vipareeta dishayilekku abhimukeekarikkunnu). avarude janavibhagangal adhikamaayi aandu aayi parishkarikkapettu.
eee phalangal bhramanapathatheyum ghadaka pindangaleyum kurichulla ellah muun kanakkukalkkum anusrithamaanu.
braun kullanmaarude bhramana kaalayalavukale projected bhramana vegathakalumaayi thaarathamyam cheiyunnathiloode, rund braun kullanmareyum ekadesham bhoomadhyarekhayil kaanukayum avayude bhramanapathangalumaayi nannayi vinyasikkukayum cheiyunnuvennu thonnunnu.
praayam.
loohmann 16 kandethiyathin thottupinnaale prasidheekaricha 2013 leeii oru prabandhatthil, thavittuniratthilulla kullan 96 sathamaanam saadhyathayode paal vazhiyude nerttha diskill pedunnathaanennum athinaal athu chalikkunna oru yuva groupil pedunnillennum nigamanam cheythu. lythium agiranam lainukale adisthaanamaakki systethinu paramavadhi praayam ekadesham 3-4.5 gyr aanu. vltumaayulla nireekshanangal sisttam 120 mairil kooduthal pazhakkamullathaanennu kaanichu.
ennirunnaalum, 2022-ll, loohmann 16 puthuthayi kandethiya ooshyaanas chalikkunna groupile amgamaanennu kandethi, athinu myre praayamund.
grahangalkkayi thirayuka.
2013 desemberil, sisttathile bhramana chalanangalude aswasthathakal report cheyyappettu, ithu sisttathile moonnaamathe vasthuvine soochippikkunnu. eee saadhyathayulla koottaaliyude kaalayalav kurachu masangalaayirunnu, ithu thavitt kullanmaaril oraale chuttipattiyulla oru bhramanapathathe soochippikkunnu. eathoru koottaaliyum braun-dwarf maas paridhiyil thaazheyaayirikkanam, kaaranam ithu direct imajingiloode kandethumaayirunnu. alavukal thettayi cheythittillenn karuthikkond gaveshakar thettaaya positteevinte saadhyatha 0.002% aayi kanakkakki. sthireekarichirunnenkil, jyothishaasthraparamaayi kandethiya aadyathe exoplanetaayirikkum ithu. grahathinu "kurachu" num "kurachu" num idayil pindam undakaan saadhyathayundennu avar kanakkakkunnu, ennirunnaalum kooduthal valia graham kooduthal thilakkamullathaayirikkumum athinaal nakshathratthinte "photosentar" allengil alakkunna sthaanathe badhikkumennum avar paraamarsikkunnu. ithu oru exoplaanattinte jyothishaasthraparamaaya chalanam alakkaan budhimuttaakkum.
valare valia dooradarshini upayogichu luhman 16-nte thudarnnulla jyothisshaasthra nireekshanam 20 muthal 300 divasam vare kaalayalavulla thavitt kullane parikramanam cheiyunnathinekkaal valia pindamulla moonnaamathe vasthuvinte saannidhyam ozhivaakkiyittund. luhman 16ll adutha bheeman grahangalonnum illa.
2014-2016 leeii "hubble space telescope" upayogichulla nireekshanangal sisttathil adhika thavitt kullanmaar illennu sthireekarichu. onnu muthal rund varsham vare bhramanakalamulla neptyoon pindamulla vasthukkale ithu thallikkalanju. ithu munbu kandethiya exoplanet kaandidettinte nilanilpp valare asambhavyamaakkunnu.
anthareeksham.
gillan thudangiyavar nadatthiya oru patanam."(2013) luhman luhman athinte bhramana samayat asamamaya uparithala prakasham pradarshippichathaayi kandethi. 2013 meyy 5 nuu crossfield muthalaayava."(2014) europian sathen obsarvettari valare valia dooradarshini (vlt) upayogichu anchu manikkoor luhman 16 systethe nerittu nireekshichu, ithu luhman luhman poornna bhramanathinu thulyamaanu. avarude gaveshanam gillan thudangiyava sthireekarichu."nireekshanam, madhya akshamshangalil oru valia, irunda pradesham, athinte mukalile dhruvathinu sameepam oru thilakkamulla pradesham, mattevideyengilum chitharikkidakkunna prakasham enniva kandethuka. irunda pradeshangal kattiyulla meghangale prathinidheekarikkunna "paachi global klaudukale" soochippikkunna eee veriyant prakasham soochippikkunnuvennum thilakkamulla pradeshangal akathu ninnu prakasham anuvadikkunna claude paaliyile dwaarangalaanennum avar soochippikkunnu. luhman luhman prakasha paattenukal anudinam athivegam maarunnu. photometric veriyabilukalil ettavum kooduthal ariyappedunna braun kullanmaaril onnaanu luhman luhman, chilappol 20 sathamaanathiladhikam aamplityoodil vyathyaasappedunnu. 2 masses jeey 21392676+0220226 maathramaan kooduthal variable ennu ariyappedunnathu.
hains "thudangiyava."(2021) pottasyam, soodiyam thudangiya kshara lohangalude spectral lainukalile vyathiyaanam nireekshichu; chlorideukalumaayulla praadeshika raasa santhulithaavasthaye maattimaricha meghaavaranathile mattangal moolamaanu vyathiyanangal sambhavichathenn avar abhiprayappettu. minnalo arorayo saadhyamaanennu kanakkaakkappettirunnu, pakshe saadhyatha kuravaanu.
luhman luhman yude laitt karvu deferential rotteshante thelivukal kaanikkunnu. bhoomadhyarekha pradeshangaludeyum madhya akshamsha pradeshangaludeyum vyathyastha bhramana kaalaghattangalude thelivukalundu. bhoomadhyarekhayude bhramana kaalayalavumaayi poruthappedunna pradhana kaalayalav 5.28 manikkooraan. athesamayam, luhman luhman bhramana kaalayalav 6.94 manikkooraan.
radio, ex-reey pravartthanangal.
oosttan thudangiyavar nadatthiya oru padanatthil."(2015), luhman 16 radio tharamgangalile austreliya dooradarshini compact shreniyum ex-reyile chandra ex-reey nireekshanaalayavum upayogichu nireekshikkappettu. luhman 16 eiii. bii. yill radio allengil ex-reey pravarthanangalonnum kandethiyitla, koodaathe radio, ex-reey pravartthanangalile parimithikal avatharippichu, ithu "eathenkilum ultra kool kullan radio, ex-reey prakaashathinu ithuvare labhicha ettavum sakthamaaya parimithikalaanu".

