Shih Hao Lan (28 results)

Condition: New. pp. 112.

Taschenbuch. Condition: Neu. X-Ray & Optical Study: Low Core Density Globular Clusters NGC6144 & E3 | The evidences of close binaries in globular cluster could be primordial in origin | Shih-Hao Lan | Taschenbuch | 112 S. | Englisch | 2014 | LAP LAMBERT Academic Publishing | EAN 9783659576843 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.…

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Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Binary stars play important roles in globular cluster formation and evolution. The dynamical process and the energy transfer of the binaries and the stars can strongly affect the dynamical evolution of the globular cluster. The early study of variable X-ray sources in globular clusters showed these sources are likely to be X-ray binaries formed through two-body tidal capture or three-body interaction. According to the selection bias, there were only luminous X-ray sources detected and most are believe to be neutron star or black hole binaries. With the advance of instrument in sensitivity and spectral resolution, more low-luminosity X-ray sources were found. Many faint X-ray sources are believed to result from close binary systems: CVs, ABs, qLMXBs, and MSPs. We report on the Chandra X-ray Observatory and Hubble Space Telescope observation of two low core density globular clusters, NGC6144 and E3. The number of faint X-ray sources in these two clusters is higher than a prediction based on collision frequency, but is closer to that based on mass. Our observations strongly suggest that the compact binary systems in NGC6144 and E3 are primordial in origin. 112 pp. Englisch.…

Condition: New. Print on Demand pp. 112 2:B&W 6 x 9 in or 229 x 152 mm Perfect Bound on Creme w/Gloss Lam.

Condition: New. PRINT ON DEMAND pp. 112.

Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Binary stars play important roles in globular cluster formation and evolution. The dynamical process and the energy transfer of the binaries and the stars can strongly affect the dynamical evolution of the globular cluster. The early study of variable X-ray sources in globular clusters showed these sources are likely to be X-ray binaries formed through two-body tidal capture or three-body interaction. According to the selection bias, there were only luminous X-ray sources detected and most are believe to be neutron star or black hole binaries. With the advance of instrument in sensitivity and spectral resolution, more low-luminosity X-ray sources were found. Many faint X-ray sources are believed to result from close binary systems: CVs, ABs, qLMXBs, and MSPs. We report on the Chandra X-ray Observatory and Hubble Space Telescope observation of two low core density globular clusters, NGC6144 and E3. The number of faint X-ray sources in these two clusters is higher than a prediction based on collision frequency, but is closer to that based on mass. Our observations strongly suggest that the compact binary systems in NGC6144 and E3 are primordial in origin.…

Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Lan Shih-HaoM.S. Institute of Astronomy. National Tsing Hua University, 2009.B.S. Department of Engineering Science and Ocean Engineering, National Taiwan University, 2006.Binary stars play important roles in globular cluster for. …

Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Binary stars play important roles in globular cluster formation and evolution. The dynamical process and the energy transfer of the binaries and the stars can strongly affect the dynamical evolution of the globular cluster. The early study of variable X-ray sources in globular clusters showed these sources are likely to be X-ray binaries formed through two-body tidal capture or three-body interaction. According to the selection bias, there were only luminous X-ray sources detected and most are believe to be neutron star or black hole binaries. With the advance of instrument in sensitivity and spectral resolution, more low-luminosity X-ray sources were found. Many faint X-ray sources are believed to result from close binary systems: CVs, ABs, qLMXBs, and MSPs. We report on the Chandra X-ray Observatory and Hubble Space Telescope observation of two low core density globular clusters, NGC6144 and E3. The number of faint X-ray sources in these two clusters is higher than a prediction based on collision frequency, but is closer to that based on mass. Our observations strongly suggest that the compact binary systems in NGC6144 and E3 are primordial in origin.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 112 pp. Englisch.…

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 108 pp. Spanisch.

Taschenbuch. Condition: Neu. Estudio con rayos X y óptico: los cúmulos globulares de baja densidad central NGC 6144 y E3 | Las pruebas de la existencia de binarias cercanas en los cúmulos globulares podrían tener un origen primordial | Shih-Hao Lan | Taschenbuch | Spanisch | 2026 | Ediciones Nuestro Conocimiento | EAN 9786630644883 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu Print on Demand.…

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 116 pp. Französisch.

Taschenbuch. Condition: Neu. Étude aux rayons X et optique : les amas globulaires à faible densité centrale NGC 6144 et E3 | Les indices de la présence de binaires proches dans les amas globulaires pourraient avoir une origine primordiale | Shih-Hao Lan | Taschenbuch | Französisch | 2026 | Editions Notre Savoir | EAN 9786630639766 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu Print on Demand.…

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 108 pp. Portugiesisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 112 pp. Italienisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 112 pp. Deutsch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 112 pp. Polnisch.

Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Doppelsterne spielen eine wichtige Rolle bei der Entstehung und Entwicklung von Kugelsternhaufen. Die dynamischen Prozesse und der Energietransfer zwischen den Doppelsternen und den anderen Sternen können die dynamische Entwicklung des Kugelsternhaufens stark beeinflussen. Frühe Untersuchungen variabler Röntgenquellen in Kugelsternhaufen zeigten, dass es sich bei diesen Quellen wahrscheinlich um Röntgendoppelsterne handelt, die durch Zweikörper-Gezeitenfang oder Dreikörper-Wechselwirkung entstanden sind. Aufgrund der Selektionsverzerrung wurden bislang nur leuchtstarke Röntgenquellen nachgewiesen, von denen die meisten vermutlich Neutronenstern- oder Schwarzes-Loch-Doppelsterne sind. Mit der Verbesserung der Empfindlichkeit und der spektralen Auflösung der Instrumente wurden jedoch zunehmend auch Röntgenquellen mit geringer Leuchtkraft entdeckt. Viele dieser schwachen Röntgenquellen stammen vermutlich aus engen Doppelsternsystemen: CVs, ABs, qLMXBs und MSPs. Wir berichten über die Beobachtungen des Chandra-Röntgenobservatoriums und des Hubble-Weltraumteleskops an zwei Kugelsternhaufen mit geringer Kerndichte, NGC 6144 und E3. Die Anzahl der schwachen Röntgenquellen in diesen beiden Sternhaufen ist höher als eine auf der Kollisionshäufigkeit basierende Vorhersage, liegt jedoch näher an der auf der Masse basierenden Vorhersage. Unsere Beobachtungen deuten stark darauf hin, dass die kompakten Doppelsternsysteme in NGC 6144 und E3 urzeitlichen Ursprungs sind.…

Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Le stelle binarie svolgono un ruolo importante nella formazione e nell'evoluzione dei cluster globulari. I processi dinamici e il trasferimento di energia tra le binarie e le altre stelle possono influenzare fortemente l'evoluzione dinamica del cluster globulare. I primi studi sulle sorgenti variabili di raggi X nei cluster globulari hanno dimostrato che tali sorgenti sono probabilmente binarie a raggi X formatesi attraverso la cattura mareale a due corpi o l'interazione a tre corpi. A causa del bias di selezione, sono state rilevate solo sorgenti di raggi X luminose e si ritiene che la maggior parte di esse siano sistemi binari costituiti da stelle di neutroni o buchi neri. Con il progresso degli strumenti in termini di sensibilità e risoluzione spettrale, sono state individuate ulteriori sorgenti di raggi X a bassa luminosità. Si ritiene che molte sorgenti deboli di raggi X derivino da sistemi binari stretti: CV, AB, qLMXB e MSP. Presentiamo i risultati delle osservazioni condotte dall'Osservatorio a raggi X Chandra e dal Telescopio spaziale Hubble su due ammassi globulari a bassa densità del nucleo, NGC6144 ed E3. Il numero di sorgenti deboli di raggi X in questi due ammassi è superiore a quanto previsto sulla base della frequenza di collisione, ma è più vicino a quanto previsto sulla base della massa. Le nostre osservazioni suggeriscono fortemente che i sistemi binari compatti presenti in NGC6144 ed E3 siano di origine primordiale.…

Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - As estrelas binárias desempenham papéis importantes na formação e evolução dos aglomerados globulares. O processo dinâmico e a transferência de energia entre as binárias e as estrelas podem afetar fortemente a evolução dinâmica do aglomerado globular. Os primeiros estudos sobre fontes variáveis de raios X em aglomerados globulares revelaram que estas fontes são provavelmente binárias de raios X formadas através da captura maremotriz de dois corpos ou da interação de três corpos. Devido ao viés de seleção, apenas foram detetadas fontes luminosas de raios X, e acredita-se que a maioria seja constituída por binárias de estrelas de neutrões ou buracos negros. Com o avanço dos instrumentos em termos de sensibilidade e resolução espectral, foram descobertas mais fontes de raios X de baixa luminosidade. Acredita-se que muitas fontes fracas de raios X resultem de sistemas binários próximos: CVs, ABs, qLMXBs e MSPs. Apresentamos um relatório sobre as observações realizadas pelo Observatório de Raios X Chandra e pelo Telescópio Espacial Hubble de dois aglomerados globulares de baixa densidade no núcleo, NGC6144 e E3. O número de fontes de raios X fracas nestes dois aglomerados é superior ao previsto com base na frequência de colisão, mas está mais próximo do previsto com base na massa. As nossas observações sugerem fortemente que os sistemas binários compactos em NGC6144 e E3 são de origem primordial.…

Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Gwiazdy podwójne odgrywaj¿ wän¿ rol¿ w powstawaniu i ewolucji gromad kulistych. Procesy dynamiczne oraz transfer energii mi¿dzy uk¿adami podwójnymi a gwiazdami mog¿ silnie wp¿ywä na ewolucj¿ dynamiczn¿ gromady kulistej. Wczesne badania zmiennych ¿róde¿ promieniowania rentgenowskiego w gromadach kulistych wykazäy, ¿e ¿ród¿a te s¿ prawdopodobnie uk¿adami podwójnymi emituj¿cymi promieniowanie rentgenowskie, powstäymi w wyniku dwuciäowego wychwycenia p¿ywowego lub oddziäywania trójciäowego. Ze wzgl¿du na b¿¿d selekcji wykryto dotychczas jedynie jasne ¿ród¿a promieniowania rentgenowskiego, a uwäa si¿, ¿e wi¿kszo¿¿ z nich to uk¿ady podwójne sk¿adaj¿ce si¿ z gwiazd neutronowych lub czarnych dziur. Wraz z post¿pem w zakresie czu¿o¿ci i rozdzielczo¿ci spektralnej instrumentów odkryto wi¿cej ¿róde¿ promieniowania rentgenowskiego o niskiej jasno¿ci. Uwäa si¿, ¿e wiele s¿abych ¿róde¿ promieniowania rentgenowskiego pochodzi z bliskich uk¿adów podwójnych: CV, AB, qLMXB i MSP. Przedstawiamy wyniki obserwacji dwóch gromad kulistych o niskiej g¿sto¿ci j¿dra - NGC6144 i E3 - przeprowadzonych za pomoc¿ Obserwatorium Rentgenowskiego Chandra oraz Kosmicznego Teleskopu Hubble'a. Liczba s¿abych ¿róde¿ promieniowania rentgenowskiego w tych dwóch gromadach jest wy¿sza ni¿ przewidywano na podstawie cz¿stotliwo¿ci zderze¿, ale bli¿sza warto¿ci wynikaj¿cej z masy. Nasze obserwacje zdecydowanie wskazuj¿, ¿e zwarte uk¿ady podwójne w NGC6144 i E3 maj¿ pochodzenie pierwotne. …

Taschenbuch. Condition: Neu. Badania rentgenowskie i optyczne: gromady kuliste o niskiej g¿sto¿ci j¿dra - NGC 6144 i E3 | Dowody na istnienie bliskich uk¿adów podwójnych w gromadach kulistych mog¿ mie¿ pochodzenie pierwotne | Shih-Hao Lan | Taschenbuch | Polnisch | 2026 | Wydawnictwo Nasza Wiedza | EAN 9786630634648 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu Print on Demand.…

Taschenbuch. Condition: Neu. Studio ottico e ai raggi X: gli ammassi globulari a bassa densità del nucleo NGC 6144 ed E3 | Le prove dell'esistenza di binarie ravvicinate nei cluster globulari potrebbero avere origine primordiale | Shih-Hao Lan | Taschenbuch | Italienisch | 2026 | Edizioni Sapienza | EAN 9786630647440 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu Print on Demand.…

Taschenbuch. Condition: Neu. Estudo de raios X e óptico: Aglomerados globulares de baixa densidade no núcleo NGC 6144 e E3 | Shih-Hao Lan | Taschenbuch | Portugiesisch | 2026 | Edições Nosso Conhecimento | EAN 9786630650006 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu Print on Demand.…

Taschenbuch. Condition: Neu. Röntgen- und optische Untersuchung: Kugelsternhaufen NGC 6144 und E3 mit geringer Kerndichte | Die Hinweise auf enge Doppelsterne in Kugelsternhaufen könnten primordialen Ursprungs sein | Shih-Hao Lan | Taschenbuch | Deutsch | 2026 | Verlag Unser Wissen | EAN 9786630637205 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu Print on Demand.…