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Re: NGC 4725: spiral'naya galaktika s odnim rukavom
3.06.2013 8:21 | A.P. Vasi
| Svet i prostranstvo i o skorosti sveta. | 23.01.201121:11 |
Tozhe dostatochno interesnoe foto s tochki zreniya
dinamiki v ochen' bol'shih masshtabah.
Grandioznost' vidno iz togo skol'ko vnutri nekotoroi
sfery zvezd sinego cveta, eto govorit chto vydelilos'
s neskol'kih zvezd prakticheski odnovremenno mnogo
efira ili vyletelo iz zvezd mnogo zvezd efira
prakticheski odnovremenno chto privelo k ochen' bol'shomu
vybrosu efira, v svyazi s chem ot vysokoi plotnosti
efira izmenilsya ih spektr proizoshel sdvig v
sinyuyu storonu, vozmozhno etomu predshestvovalo
snizhenie davleniya efira posle chego proizoshlo
lopan'e chasti zvezd kak myl'nyh puzyrei
s odnovremennym povyshenie davleniya efira,
posle chego po sduvalo vneshnie obolochki
s teh zvezd chto ne polopalis' i v itoge
prakticheski vse zvezdy po vybrasyvali zvezdy
efira, chto i privelo k takomu bol'shomu
deistviyu.
[Citirovat'][Otvetit'][Novoe soobshenie]
| Forumy >> Obsuzhdenie publikacii Astroneta |
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- NGC 4725: spiral'naya galaktika s odnim rukavom
(Astronomicheskaya kartinka dnya,
30.05.2013, 1.4 KBait, otvetov: 8)
V to vremya kak u bol'shinstva spiral'nyh galaktik, vklyuchaya nash Mlechnyi Put',
est' dva spiral'nyh rukava ili dazhe bol'she, u NGC 4725 on tol'ko odin.
Na etom chetkom cvetnom sostavnom izobrazhenii edinstvennaya
"chudesnaya spiral'" zakruchivaetsya vokrug centra galaktiki, vyhodya iz yarkogo
kol'ca golubovatyh skoplenii novorozhdennyh zvezd i krasnovatyh oblastei zvezdoobrazovaniya.
V etoi strannoi galaktike vidny takzhe polosy pogloshayushei svet pyli,
horosho zametnoe kol'co i zheltovataya central'naya peremychka, sostoyashaya iz bolee staryh zvezd.
Diametr NGC 4725 prevyshaet 100 tysyach svetovyh let, ona nahoditsya na rasstoyanii v 41 million svetovyh let
v sozvezdii Volosy Veroniki.
Komp'yuternoe modelirovanie formirovaniya odinochnogo
spiral'nogo rukava pozvolyaet predpolozhit', chto po otnosheniyu k
napravleniyu vrasheniya vsei galaktiki on mozhet byt' kak lidiruyushim, tak i
otstayushim.
Na fotografii takzhe vidna chut' men'shaya po razmeru fonovaya galaktika s vpolne tradicionnoi spiral'noi
strukturoi.
- Re: NGC 4725: spiral'naya galaktika s odnim rukavom
(A. V. Malkin,
30.05.2013 20:53, 98 Bait)
Pyat' ballov!
- Re: NGC 4725: spiral'naya galaktika s odnim rukavom
(A.P. Vasi,
30.05.2013 21:57, 39.4 KBait)
Flocculent spiral NGC 2841
Naverh [Citirovat'][Otvetit'][Novoesoobshenie][Novayatema] 
A.P.Vasi
Re: Svet i prostranstvo i o skorosti sveta. 6.03.20123:00 Vnimatel'no rassmatrival galaktiki i zametil dopolnitel'nye
otlichitel'nye osobennosti.
1 Rassloenie galaktiki.
U galaktik nablyudaetsya rassloenie vnutri
galaktiki, v svyazi s chem proishodit neravnomernoe
uplotnenie zvezd, i sozdaetsya situaciya kogda v centre
galaktiki proishodit povyshenie temperatury v
svyazi s chem sozdaetsya razryazhenie efira
------------------------------
Doing Cartwheels to Celebrate the End of an Era
-------------------------------------
v svyazi
s bol'shimi rasstoyaniyami efir ne mozhet byt'
popolnen s okrain galaktiki, zvezdy nachinayut
v centre bystree sblizhat'sya
i styagivat'sya v centr galaktiki, posle chego nizkaya
plotnost' efira privodit k tomu chto zvezdy nachinayut
teryat' balans i uzhe ne mogut vsasyvat' efir,
chto privodit
k lopan'yu zvezd s posleduyushim vybrosom efira.
Posle togo kak povyshaetsya davlenie efira v centre galaktiki,
povyshaetsya davlenie efira, poluchaetsya situaciya v kotoroi
staraya ploskost' galaktiki s vysokoi plotnost'yu
efira sozdaet uprugost' gorazdo bol'shuyu po otnosheniyu
k osyam, v svyazi s chem vse zvezdy povorachivayutsya po osi,
i poluchaetsya vot takaya situaciya.
Hubble image of NGC 1073 
A Poster-Size Image of the Beautiful Barred Spiral Galaxy NGC 1300
Naverh [Citirovat'][Otvetit'][Novoesoobshenie][Novayatema] A.P.Vasi
Re: Svet i prostranstvo i o skorosti sveta. 6.03.201217:28
Prodolzhenie.
2 Gryazevoe kol'co.
a) Galaktika men'she gryazevogo kol'ca.
b) Galaktika bol'e gryazevogo kol'ca.
v) Razmytie gryazevogo kol'ca.
Kogda galaktika prohodit kriticheskuyu massu u ee
zvezd nachinaetsya lopan'e zvezd s obrazovaniem
vokrug galaktiki gryazevoi peleny,
posle chego
eta pelena koncentriruetsya v gryazevoe kol'co.
Kogda vidimyi razmer galaktiki men'she gryazevogo
kol'ca - govorit o tom chto galaktika vstupila
v svoyu samuyu
dinamichnuyu fazu, i u nee nachinayut izmenyatsya vse
zvezdy vnutri kol'ca.
Povyshaetsya temperatura v svyazi s chem snizhaetsya plotnost'
efira, v svyazi s bol'shimi rasstoyaniyami efir s periferii
ne mozhet popolnitsya, zvezdy nachinayut bystro
samo-sblizhat'sya, chto privodit k eshe bol'shemu snizheniyu
plotnosti efira i uvelicheniyu temperatury,
chto privodit k potere balansa dlya formirovaniya
"zvezdy efira" vnutri zvezd, i v svyazi s chem prakticheski
vse zvezdy odnovremenno nachinayut vydelyat' efir.
Kogda zvezdy vnutri gryazevogo kol'ca - to proishodit ili process
bystrogo samo-sblizheniya zvezd po prichine togo chto efir s periferii
ne mozhet popolnit' snizhenie plotnosti tak kak efir tozhe
obladaet vyazkost'yu i massoi, i na takih bol'shih
rasstoyaniyah popolnenie efira iz vne gorazdo men'she
chem nuzhno dlya zvezd, i oni samo-sblizhayutsya, tem samym eshe bol'she
snizhaetsya plotnost' efira i povyshaetsya temperatura, posle
chego "zvezdy efira" teryayut balans vo vtoroi raz, v pervyi raz
oni poteryali balans pri formirovanii gryazevoi peleny,
kotoraya prevratilas' v gryazevoe kol'co. Teryaya balans po vsasyvaniyu
efira, zvezda efira nachinaet vosstanavlivat' efir i sbrasyvat' ego
v prostranstvo, chto proishodit prakticheski odnovremenno so vsemi
zvezdami, i galaktika nachinaet razletat'sya.
Poluchaetsya chto kogda galaktika men'she gryazevogo kol'ca,
to v nei zvezdy samo-sblizhayutsya, ili rastalkivayutsya efirom.
Kogda zvezdy prakticheski odnovremenno teryayut balans i vybrasyvayut
efir v prostranstvo sozdaetsya izbytochnoe davlenie efira,
i zvezdy bystro razletayutsya vo vse storony,
sperva zaletayut za gryazevoe kol'co, a potom
i polnost'yu gryazevoe kol'co pogloshayut
kak budto ego i ne bylo.
- Re: NGC 4725: spiral'naya galaktika s odnim rukavom
(A.P. Vasi,
30.05.2013 21:58, 10.8 KBait)
Re: Svet i prostranstvo i o skorosti sveta. 12.03.20122:16 Zametil ocherednuyu zakonomernost'.
Rukava.
Esli galaktika sostoit iz yavno vidimyh dvuh rukavov,
to eto rukava ot sliyaniya dvuh galaktik.
Galaktiki sblizhayutsya.
--------------------
http://www.spacetelescope.org/images/heic0206b/
------------------
http://www.spacetelescope.org/images/heic0810ae/
-----------------
http://www.spacetelescope.org/images/opo9734d/
------------------
http://www.spacetelescope.org/images/heic0615a/
Formiruyut obshee yadro.
------------------------
http://www.spacetelescope.org/images/opo0014a/
Yadra galaktik slivayutsya.
---------------------------------
http://www.spacetelescope.org/images/heic1107a/
http://www.spacetelescope.org/images/heic0912a/
--------
Yadra dvuh galaktik slity.
----------------------------------
http://www.spacetelescope.org/images/potw1125a/
---------------------------
http://www.spacetelescope.org/images/opo1103c/
Naverh [Citirovat'][Otvetit'][Novoesoobshenie][Novayatema] A.P.Vasi
Re: Svet i prostranstvo i o skorosti sveta. 12.03.201212:26 Galaktika s rassloeniem. 
Picture
Album: Barred Spiral Galaxy NGC 1512 in Many Wavelengths
(Gallery)
Picture
Album: Wide view of Barred Spiral Galaxy NGC 1512
(Gallery)
---------------------
NGC 4314
Naverh [Citirovat'][Otvetit'][Novoesoobshenie][Novayatema] A.P.Vasi
Re: Svet i prostranstvo i o skorosti sveta. 24.03.201218:59 http://infuture.ru/article/5880
Astronomy obnaruzhili kvazary, deistvuyushie kak gravitacionnye linzy
Kandidaty v gravitacionnye linzy imeyut neocenimoe
znachenie dlya ocenki massy galaktik kvazarov. Astronomy, ispol'zuyushie kosmicheskii teleskop Habbl, nashli neskol'ko primerov galaktik, soderzhashih kvazary, kotorye deistvuyut kak gravitacionnye linzy, usilivaya i iskazhaya izobrazheniya galaktik.
---------------------------
Go to image download page
----------------
Dannaya galaktika samaya interesnaya iz vseh, u etoi galaktiki proizoshlo sliyanie dvuh
galaktik, chto povleklo za soboi rezkoe rassloenie zvezd, i u centra galaktiki zvezdy
nachali bystro samo-sblizhat'sya i rezko uvelichilas' temperatura v centre, i estestvenno
rezko snizilas' plotnost' efira, i zvezdy v centre ne mogut obespechit' nuzhnogo
davleniya vnutri sebya chtoby uderzhat' zvezdu efira ot togo chtoby chasticy Aleksandra,
ne nachali prevrashat'sya v chasticy efira. Pri vosstanovlenii chastic Aleksandra, k etim chasticam
prisoedinyaetsya energiya, i chastica uvelichivaet ob'em v milliard i bolee raz, i prevrashaetsya
v chasticu efira (chastica efira v milliard raz men'she chasticy (uslovnoi chasticy) vozduha),
pri etom process na nekotoroe vremya stanovitsya neobratimym. Pri blizko raspolozhennyh sosednih
zvezdah, rezko vosstanovivshiisya efir u sosednih zvezd delaet bokovoi rezkii gidravlicheskii udar pri etom
mozhet sdut' vneshnyuyu obolochku, i zvezda efira ostanetsya pozadi a obolochka iz materii sletit.
I pervonachal'noe vosstanovlenie efira nabiraet lavinoobraznyi vid, chto v rezul'tate tak daleko
davleniem efira razbrosaet zvezdy, chto bol'shinstvo zvezd nikogda ne soberutsya v odnu galaktiku,
oni pri ostyvanii sformiruyut mnogo nebol'shih galaktik na bol'shom udalenii drug ot druga.
Osnovnaya dostoprimechatel'nost' etoi galaktiki - eto samaya dinamichnaya chast' zhizni galaktiki.
To chto hotyat sdelat' katalog - to eto konechno gde-to logichno, no ne sovsem pravil'no, pravil'no u analogichnyh
galaktik vesti nepreryvnuyu videozapis' v teleskop.
No uchityvaya v kakom kamennom veke zhivem chto opredelyaetsya kolichestvom teleskopov v kosmose na million ,
etot vopros budet vryad-li kogda reshen v obozrimom budushem.
- Re: NGC 4725: spiral'naya galaktika s odnim rukavom
(S. I. Gordeev,
3.06.2013 5:23, 299 Bait)
Uvazhaemyi A.P. Vasi! Vse galaktiki absolyutno odinakovy po strukture. Bol'shoe kolichestvo vidov galaktik svyazano tol'ko s vzaimnym raspolozheniem galaktik i nablyudatelya. Lichno s vas mozhno sdelat' stol'ko fotografii skol'ko net galaktik i vsezhe eto budete vy A.P. Vasi.
Best regards!GSI
- >> Re: NGC 4725: spiral'naya galaktika s odnim rukavom
(A.P. Vasi,
3.06.2013 8:21, 1.6 KBait)
Svet i prostranstvo i o skorosti sveta. 23.01.201121:11
Tozhe dostatochno interesnoe foto s tochki zreniya
dinamiki v ochen' bol'shih masshtabah.
Grandioznost' vidno iz togo skol'ko vnutri nekotoroi
sfery zvezd sinego cveta, eto govorit chto vydelilos'
s neskol'kih zvezd prakticheski odnovremenno mnogo
efira ili vyletelo iz zvezd mnogo zvezd efira
prakticheski odnovremenno chto privelo k ochen' bol'shomu
vybrosu efira, v svyazi s chem ot vysokoi plotnosti
efira izmenilsya ih spektr proizoshel sdvig v
sinyuyu storonu, vozmozhno etomu predshestvovalo
snizhenie davleniya efira posle chego proizoshlo
lopan'e chasti zvezd kak myl'nyh puzyrei
s odnovremennym povyshenie davleniya efira,
posle chego po sduvalo vneshnie obolochki
s teh zvezd chto ne polopalis' i v itoge
prakticheski vse zvezdy po vybrasyvali zvezdy
efira, chto i privelo k takomu bol'shomu
deistviyu.
- Re: NGC 4725: spiral'naya galaktika s odnim rukavom
(A.P. Vasi,
3.06.2013 8:28, 562 Bait)
\\\Uvazhaemyi A.P. Vasi! Vse galaktiki absolyutno odinakovy po strukture.\\\
Nu na predydushem bylo hot' vidno chto u vsei galaktiki zvezdy
polopalis'.
Rekomenduyu podobnye vyvody ostavlyat' pri sebe
i ne pozoritsya chtoby ne vyglyadet' nedalekim v dannom
voprose.
Prochtite to chto ya napisal raz desyat', mozhet i smozhete
ponyat' smysl napisannogo.
I Vy v principe ne spor'te so mnoi ibo ya kosmologiei
zanimayus' bol'she desyati let - eto moe hobbi kotoromu
ya ezhednevno udelyayu neskol'ko chasov.
- Re: NGC 4725: spiral'naya galaktika s odnim rukavom
(A.P. Vasi,
3.06.2013 9:24, 814 Bait)
Vy hot' vnikaite v sut' inogda voprosa v kotorom
u Vas trudnosti s ponimaniem po prichine ne vospriyatiya
izobrazhenii i teksta. Chto vozmozhno svyazanno s
predubezhdennost'yu v dannom voprose kotoraya
obychno poyavlyaetsya u teh - komu mosk kanalami diskaveri
i paradigmoi prochistili, i etot individuum
uveren chto use v kosmologii tak horosho, pushisto, ponyatno i prekrasno,
a na prosteishii vopros - a kak ustroena zvezda,-
vse do odnogo kosmologi i astronomy druzhno
slivayut vodu.
Vy po krainei mere hot' podumaite nad tem kak
Vy argumentirovali svoyu tochku zreniya, - vmesto
togo chtoby pokazat' fotografii, i obosnovat'
ih slovami Vy rasskazali o tom chto kolichestvo
kopii mozhet byt' ochen' bol'shim.
Nu eto zhe argument urovnya - nedalekogo, - v dannom voprose.
- Re: NGC 4725: spiral'naya galaktika s odnim rukavom
(A.P. Vasi,
3.06.2013 9:40, 18.0 KBait)
Vam hot' vse fotografii byli vidny,
esli vse fotografii
Vy videli v moih primerah - to bud'te lyubezny na sait
Habla,
http://www.spacetelescope.org/images/archive/category/galax/
v razdel galaktiki, delaite che hotite,
no chtoby Vy ne vyglyadeli v moih glazah
nedalekim , a tochnee - bezmozgloi skotinoi
v dannom voprose, u Vas est' vozmozhnost'
argumentirovat' odinakovost' ili odnorodnost'
struktury galaktik.
Uspehov.
Tekst dolzhen byt' ne menee dvuh vordovskih stranic.
Ne menee desyati foto.
----------------------
A rose made of galaxies Stellar Nursery in the arms of NGC 1672 Colliding galaxies make love, not war Magnetic monster NGC 1275 
Hubble sees galaxies galore Hubble Mosaic of the Majestic Sombrero Galaxy The magnificent starburst galaxy Messier 82 A poster-size image of the beautiful barred spiral galaxy NGC 1300 
Hubble view of M 106 Galactic wreckage in Stephan's Quintet Barred spiral galaxy NGC 6217 Dramatically backlit dust lanes in NGC 7049 
Holiday Wishes from the Hubble Space Telescope Largest ever galaxy portrait - stunning HD image of Pinwheel Galaxy Out of this whirl: The Whirlpool Galaxy (M51) and companion galaxy Hubble Spies Cosmic Dust Bunnies 
A 'wallpaper' of distant galaxies is a stunning backdrop for a runaway galaxy Hubble's newest camera takes a deep look at two merging galaxies Flocculent spiral NGC 2841 ACS Image of NGC 5866 
A Grazing Encounter Between two Spiral Galaxies Galaxy Playing Twister Hubble image of Messier 77 Spectacular Hubble view of Centaurus A 
Abell 2218 A tale of galactic collisions Abell 1703 Hubble views NGC 4522 
Hubble snaps heavyweight of the Leo Triplet Arp 148 Stellar fireworks are ablaze in galaxy NGC 4449 Hubble view of NGC 922 
Hubble views NGC 4402 The gargantuan galaxy NGC 1132 Galactic fireflies Hubble image of MACS J0717 
Glowing gas and dark dust in a side-on spiral Doing cartwheels to celebrate the end of an era Barred spiral bares all Unusual Spiral NGC 4921 in the Coma Galaxy Cluster 
The Lure of the Rings The Hubble Deep Field Hubble image of NGC 1073 An extraordinarily slender galaxy 
Hubble looks at sideways NGC 4710 (crop) Hubble views results of NGC 2623 merger Great observatories composite Galaxy NGC 2787 
Magnificent Details in a Dusty Spiral Galaxy Hubble captures a lucky galaxy alignment Spiral key to Universe's expansion Composite ultraviolet-visible-infrared image of NGC 1512
