標題: Titlebook: Clocks in the Sky; The Story of Pulsars Geoff McNamara Book 2008 Praxis 2008 Clocks.McNamara.Planet.Pulsars.astronomy.stars [打印本頁] 作者: 頻率 時間: 2025-3-21 17:30
書目名稱Clocks in the Sky影響因子(影響力)
書目名稱Clocks in the Sky影響因子(影響力)學科排名
書目名稱Clocks in the Sky網(wǎng)絡公開度
書目名稱Clocks in the Sky網(wǎng)絡公開度學科排名
書目名稱Clocks in the Sky被引頻次
書目名稱Clocks in the Sky被引頻次學科排名
書目名稱Clocks in the Sky年度引用
書目名稱Clocks in the Sky年度引用學科排名
書目名稱Clocks in the Sky讀者反饋
書目名稱Clocks in the Sky讀者反饋學科排名
作者: 哄騙 時間: 2025-3-22 00:18
Springer Praxis Bookshttp://image.papertrans.cn/c/image/228345.jpg作者: Ethics 時間: 2025-3-22 01:40 作者: 交響樂 時間: 2025-3-22 06:42 作者: 談判 時間: 2025-3-22 10:29
Schalter und Schutzeinrichtungen,, Frederick and Irene1 Joliot-Curie. In that paper, they described how they had bombarded a piece of the gray, toxic metal beryllium with α (alpha) particles. shot out of a sample of the radioactive element polonium. What emerged from the experiment was a highly energetic yet intangible form of radi作者: Geyser 時間: 2025-3-22 16:29 作者: Geyser 時間: 2025-3-22 17:23 作者: Spinal-Fusion 時間: 2025-3-22 22:08
,Schutzma?nahmen in Starkstromanlagen,d, that you were looking at a pulsar spinning on a pedestal. Paint a mark on the side of the pulsar near its equator. Now ask yourself: how fast would I have to drive in a car to keep up with that mark if the pulsar was spinning once a minute? Given a diameter of 20 km or so, you would in fact have 作者: Obscure 時間: 2025-3-23 03:22
,Schutzma?nahmen in Starkstromanlagen,even more important role in pulsar astronomy. Aside from the intrinsic scientific interest of this object, it lies at the center of two stories of scientific priority. Priority — who discovered something first — is a big issue in science. Major discoveries always rely on technology (and hence techno作者: analogous 時間: 2025-3-23 09:07
,Schutzma?nahmen in Starkstromanlagen,nomers on their first real experience in an astronomical observatory. After enduring good-natured joking from more experienced observers that such novices had been allowed near a telescope, the pair had managed to book time on a rather small, almost antique telescope that was well past its initial p作者: Interregnum 時間: 2025-3-23 09:47 作者: 外科醫(yī)生 時間: 2025-3-23 14:42 作者: 無法治愈 時間: 2025-3-23 19:43
Schalter und Schutzeinrichtungen,ulsars sampled the incoming signal about every 20 milliseconds. This meant that pulsars with periods less than about 100 milliseconds were difficult to detect. This wasn’t considered a problem because all the theoretical and observational evidence suggested that pulsars spin several times per second作者: AFFIX 時間: 2025-3-24 00:11
,Elektrizit?tswerke mit Gleichstrombetrieb,gglomeration of some 200 billion stars isolated from the rest of the universe in all ways except through that most feeble yet far reaching of forces, gravity. Often you will see a photograph of the nearest large galaxy to our own, the great Andromeda galaxy, presented as an analog of ours. But the A作者: 晚間 時間: 2025-3-24 02:44
,Elektrizit?tswerke mit Gleichstrombetrieb,very of extrasolar planets, that is planets orbiting stars other than the Sun. If true, the discoveries would be of tremendous importance. Firstly, the discovery of extrasolar planets held deep scientific and philosophical implications, the latest major advance in the Copernican revolution. But what作者: CYT 時間: 2025-3-24 08:38
,Elektrizit?tswerke mit Gleichstrombetrieb,sar with extraordinary properties. The theory attempted to explain a number of strange, so far unexplained sources of gamma rays called Soft Gamma Ray Repeaters (SGRs). These distant objects unpredictably emitted strong bursts of gamma rays, quietening down over a matter of seconds, and then remaini作者: aqueduct 時間: 2025-3-24 11:49 作者: Crohns-disease 時間: 2025-3-24 16:40 作者: lanugo 時間: 2025-3-24 19:56 作者: Neonatal 時間: 2025-3-25 02:12 作者: 飛行員 時間: 2025-3-25 05:52
Schutz elektrischer Anlagenteile,ter of Earth, a gargantuan sphere of plasma that has and will produce enormous amounts of energy for billions of years. Despite the Sun’s immense dimensions, it is considered a dwarf among stars. The Sun will never produce a pulsar: it is simply too small. To produce a pulsar calls for a massive star many times larger than the Sun.作者: Aprope 時間: 2025-3-25 08:51 作者: GREEN 時間: 2025-3-25 15:00
,‘Life & Death Among The Stars’,ter of Earth, a gargantuan sphere of plasma that has and will produce enormous amounts of energy for billions of years. Despite the Sun’s immense dimensions, it is considered a dwarf among stars. The Sun will never produce a pulsar: it is simply too small. To produce a pulsar calls for a massive star many times larger than the Sun.作者: decode 時間: 2025-3-25 18:23 作者: LEVER 時間: 2025-3-25 21:05
,‘Pulsar Planets’, was even more extraordinary about these planets was where they were found. Rather than orbiting a star like the Sun, these planets showed up in the last place anyone expected: orbiting a pulsar, the remains of an exploded star.作者: 不可救藥 時間: 2025-3-26 00:26
Book 2008Geoff McNamara explores the history, subsequent discovery and contemporary research into pulsar astronomy. The story of pulsars is brought right up to date with the announcement in 2006 of a new breed of pulsar, Rotating Radio Transients (RRATs), which emit short bursts of radio signals separated by作者: ascend 時間: 2025-3-26 06:15 作者: Archipelago 時間: 2025-3-26 12:21 作者: 要控制 時間: 2025-3-26 14:16
Schutz elektrischer Anlagenteile, given to the astronomer submitting the proposal. The goal of Taylor’s project was much the same as other pioneering pulsar surveys: push the limits of sensitivity and build up a statistical sample of pulsars in the Galaxy that would help astronomers understand them.作者: 棲息地 時間: 2025-3-26 20:03 作者: cardiovascular 時間: 2025-3-26 23:58 作者: Contend 時間: 2025-3-27 05:03
,’seeing Double’,table at the time of this pulsar’s discovery was a much slower, second pulsar signal. If this was indeed a double pulsar, it would provide a unique test bed for the most stringent test ever of Einstein’s theory of gravity, general relativity.作者: averse 時間: 2025-3-27 08:06
,‘Life & Death Among The Stars’,ae and it is with these titanic events that this chapter will close. But before we go there, it is important to understand at least the basics of what makes stars shine, where they get their energy from, why they last so long and why they don’t last forever. Also fundamental to our story is why it i作者: 仔細檢查 時間: 2025-3-27 11:29 作者: 無目標 時間: 2025-3-27 15:47 作者: 山間窄路 時間: 2025-3-27 21:40 作者: 災難 時間: 2025-3-27 22:12
,‘What makes pulsars tick?’,d, that you were looking at a pulsar spinning on a pedestal. Paint a mark on the side of the pulsar near its equator. Now ask yourself: how fast would I have to drive in a car to keep up with that mark if the pulsar was spinning once a minute? Given a diameter of 20 km or so, you would in fact have 作者: 擔心 時間: 2025-3-28 03:38
,‘The Crab’,even more important role in pulsar astronomy. Aside from the intrinsic scientific interest of this object, it lies at the center of two stories of scientific priority. Priority — who discovered something first — is a big issue in science. Major discoveries always rely on technology (and hence techno作者: 諄諄教誨 時間: 2025-3-28 09:47 作者: 極力證明 時間: 2025-3-28 11:42
,‘The Searchers’,sons why astronomers want to know. For one thing, since pulsars are clearly an important aspect of the story of stellar evolution, astronomers wanted to know just how many supernovae spawn pulsars and how often? It was also known that the pulsars radiate away angular momentum causing them to slow do作者: confide 時間: 2025-3-28 17:53
,‘Two by Two’,g of a long professional relationship that survives to this day. While they collaborated on many projects, there was one that Taylor initiated that Manchester didn’t take part in. Taylor proposed to use the largest radio telescope in the world, the Arecibo radio telescope on the island of Puerto Ric作者: 沙漠 時間: 2025-3-28 20:51 作者: 現(xiàn)存 時間: 2025-3-29 02:57 作者: BILL 時間: 2025-3-29 06:03
,‘Pulsar Planets’,very of extrasolar planets, that is planets orbiting stars other than the Sun. If true, the discoveries would be of tremendous importance. Firstly, the discovery of extrasolar planets held deep scientific and philosophical implications, the latest major advance in the Copernican revolution. But what作者: 追逐 時間: 2025-3-29 08:36 作者: achlorhydria 時間: 2025-3-29 12:26 作者: 豐滿有漂亮 時間: 2025-3-29 17:31 作者: fixed-joint 時間: 2025-3-29 23:02 作者: Foreknowledge 時間: 2025-3-30 01:19
,‘1932’,ough 200mm of lead. Not bad, considering it takes less than 1 mm of lead to stop the most energetic form of energy then known, . (gamma) rays.. This new radiation was ‘so hard that one can hardly doubt their nuclear origin’.. Both teams assumed that the unknown radiation must in fact be an even more作者: 革新 時間: 2025-3-30 08:03 作者: APEX 時間: 2025-3-30 08:24 作者: 聾子 時間: 2025-3-30 15:47
,‘The Crab’, While Bell and Hewish have properly gone down in history as the discoverers of pulsars, pulsars were first detected, but not recognized, much earlier. Using an X-ray telescope, American astronomers had detected the pulsating signal from the Crab Nebula months prior to Hewish and Bell’s discovery; t作者: 南極 時間: 2025-3-30 20:36
,‘Optical Pulsars’,ale flashes of light that kept time with the recently discovered Crab pulsar that would indicate that pulsars emitted visible light pulses as well as radio pulses. Such a discovery would be quite a prize considering its implications for understanding pulsars. In this case the sign of success would b作者: 賄賂 時間: 2025-3-30 21:51 作者: Heart-Rate 時間: 2025-3-31 04:26 作者: Cardioversion 時間: 2025-3-31 08:19 作者: HAUNT 時間: 2025-3-31 11:43
