Ўзбекистонда блазарларни кузатиш - Астрономия - Презентации

Информация о документе

Цена	3000UZS
Размер	4.3MB
Покупки	0
Дата загрузки	23 Сентябрь 2019
Расширение	ppt
Раздел	Презентации
Предмет	Астрономия

Ўзбекистонда блазарларни кузатиш

Купить

Сейферт галактикалари Блазарлар Актив ядроли галактикалар (AGN) Квазарлар Радио галактикалар

 Beginning with the highly luminous quasars  Decreasing in violence through the radio and Seyfert galaxies and ending with normal spirals and ellipticals  The central black holes that powered the early activity are still there at later times; they simply run out of fuel as time goes on

Немис астрономи Cuno Hoffmeister ( 1892-1968 ) томонидан 1929 йилдa кaлтaкeсaк (Laсerta) юлдуз туркумидa ўзгарувчан юлдуз сифатида кашф этилган. 1968 йилда John Schmitt томонидан Канададаги David Dunlap обсерваториясида яна бир “ўзгарувчан юлдуз” BL Lacertae ( VRO 42.22.01 ) ни кашф этди . 1974 йилда Oke ва Gunn BL Lacertae объектининг қизилга силжиши z = 0.07, эканлигини ва бу объект 21,000 km/s тезлик билан Сомон Йўли галактикасидан узоқлашётганини аниқлади Блазар номи 1978 йилда астроном Ed Spiegel томонидан фанга киритилган.

Up to now, 24 campaigns have been carried out, usually in conjunction with observations at high energies.The WEBT was born in 1997, in the CGRO era, as an international consortium of astronomers devoted to blazar studies. Mostly optical , but also radio and near-IR observatories More than 100 optical telescopes, 3 NIR, 8 radio, and the Sub-millimeter Array provided the WEBT with more than 50,000 observations in 20 bands.http://www.oato.inaf.it/blazars/ webt/ The distribution in longitude allows 24 h/day continuous monitoring

WEBT campaigns: one (source) at a time WEBT President (from 2000: Massimo Villata, OATo)Observing proposal (anybody) WEBT officers Campaign (from a few days to several months/years) The Campaign Manager takes care of campaign coordination, publication of results, and sends data to the WEBT archive

Кузатувлар Майданак обсерваториясидаги кўзгусининг диаметри 60 см бўлган Цейс 600 телескопида АҚШнинг Finger Lakes Instrumentation (FLI) компанияси томонидан ишлаб чиқарилган FLI ProLine PL4710 камераси ёрдамида олиб борилди.

№ Name of objects RA DEC Total observation nights Band Exposure ( sec ) Total images T otal exposure time (sec) BL Lac 22:02:43.3 +42:16:40 258 VRI 60+90+120 3564 320760 CTA102 22:32:36.4 11:43:51.3 187 VRI 180 2015 362700 4C38.41 16:35:15. 5 +38 08 04 175 VRI 180 2759 496620 3C 371 18:06:50.7 +69 49 28 121 VRI 180 1064 191520 3С454.3 22 : 53 : 57.7 +16 : 08 : 54 118 VRI 120-180 1186 177900 MRK 501 16:53:52.2 +39:45:37 111 VRI 180 1001 180180 3С 66А 02 : 22 : 39.6 +43 : 02 : 08 102 VRI 120 936 112320 3C 345 16:42:58.8 +39 48 37 95 VRI 180 800 144000 1 ES2344 23 : 47 : 04.8 +51 : 42 : 18 90 VRI 120-180 834 125100 PKS1510 15:12:50.5 - 09:06:00 75 VRI 180 638 114840 PG 026+129 00:29:13.7 +13:16:04 71 VRI 120 663 79560 S 5 0716 07 : 21 : 53.4 +71 20 36 58 VRI 120 512 61440 PKS0420 04 : 23 : 15

 C. M. Raiteri, M. Villata, …, D. O. Mirzaqulov, Sh. A. Ehgamberdiev, et al. (42 authours) “Variability of the blazar 4C 38.41 (B3 1633+382) from GHz frequencies to GeV energies” Astronomy & Astrophysics, 2012 Volume 545, id. A48, 18 pp

Купить

Похожие документы
Faxriy yorliq
Olamning yagona fizik manzarasi
Fazoda tekislik va ularga doir metrik masalalar
Quyosh sistemasi. Quyosh sistemasi va yer. Yerning geografik qobiqlari hamda tiriklik belgilari
Somon yo’li - shimoliy qutbi