射電星雲 的英文怎麼說
中文拼音 [shèdiànxīngyún]
射電星雲
英文
radio nebula- 射 : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 星 : 名詞1 (夜晚天空中閃爍發光的天體) star 2 [天文學] (宇宙間能發射光或反射光的天體) heavenly body...
- 雲 : Ⅰ動詞[書面語] (說) say Ⅱ名詞1. (雲彩) cloud 2. (雲南) short for yunnan province3. (姓氏) a surname
- 星雲 : [天文學] nebula
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The most obvious advantage is that because of their inability to scatter appreciably, nebular radio waves completely and genuinely delineate the distribution of nebular gas.
因為星雲對射電波的散射很小,所以最明顯的優點就是能夠全面而真實地勾畫出星雲氣體分佈的外貌。In the absence of an appreciable magnetic field, the ensemble of nebular electrons interacts with ions to emit weak continuous radiation by free-free and free-bound transitions.
在不存在可觀的磁場時,星雲中的電子系綜與離子相互作用可通過自由-自由和自由-束縛躍遷而發射弱連續輻射。Radio astronomers are now able to synthesize the response of a partially filled aperture of large diameter and thus to map variations in nebular brightness.
射電天文學家現在已經能夠把部分充滿的大直徑孔徑進行綜合,從而描繪出星雲亮度變化圖。These sources are generally viewed in projection against radio nebulae representing the remnants of supernova outbursts.
這類源一般都投影在超星爆發殘骸的射電星雲上。Unlike the rapidly rotating neutron stars in the crab nebula and vela supernova remnants that are surrounded by dynamic magnetized clouds of electrons called pulsar wind nebulas, this neutron star is quiet, faint, and so far shows no evidence for pulsed radiation
與蟹狀星雲和船帆座超新星遺跡中被磁化電子云(脈沖星風星雲)環繞的高速自轉中子星不同,這顆中子星安靜而虛弱,目前為止,沒有顯示脈沖輻射的跡象。Which will eventually form stars of spectral types g, k or m. t tauri stars are surrounded by a huge cloud and they are very young, with low surface temperature. they emit most of their light in the infrared region and they appear red. a general principle is, a violent reaction will give out short wavelength waves, like gamma rays or x - rays ; while a gentle process will radiate long wavelength waves, like radio or infrared
,這類星最後會演化為g k或m型恆星,金牛座t型星為表面溫度低而非常年青的恆星,四周被星雲所圍繞,所以這種星顏色偏紅,較容易在紅外線波段找到一個普遍的原則是,如果活動越激烈,則所放出的光波波長越短,主要會為伽瑪或x射線如果活動溫和,則會發放出如無線電波或紅外線等長波長電磁波。分享友人