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Related papers: Furnishing the Galaxy with Pulsars

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We summarize the principles and fundamental ingredients of evolutionary synthesis models, which are stellar evolution, stellar atmospheres, the IMF, star-formation histories, nebular emission, and also attenuation from the ISM and IGM. The…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Daniel Schaerer

On the basis of theoretical evolutionary expectations, we develop a Galactic model reproducing star counts and synthetic color-magnitude diagrams of field stars, which include the white dwarf (WD) population. In this way we are able to…

Astrophysics · Physics 2007-05-23 M. Cignoni , V. Castellani , S. Degl'Innocenti , S. Petroni , P. G. Prada Moroni

We investigate the birth and evolution of Galactic isolated radio pulsars. We begin by estimating their birth space velocity distribution from proper motion measurements of Brisken et al. (2002, 2003). We find no evidence for multimodality…

Astrophysics · Physics 2008-11-26 C. -A. Faucher-Giguere , V. M. Kaspi

Elliptical galaxies are believed to consist of a single population of old stars formed together at an early epoch in the Universe, yet recent analyses of galaxy spectra seem to indicate the presence of significant younger populations of…

Astrophysics · Physics 2007-05-23 Ata Kaban , Louisa A. Nolan , Somak Raychaudhury

I present a brief review of the stellar population properties of massive galaxies, focusing on early-type galaxies in particular, with emphasis on recent results from the ATLAS3D Survey. I discuss the occurrence of young stellar ages, cold…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Richard M. McDermid

We present preliminary results of a pulsar population synthesis of normal pulsars from the Galactic disk using a Markov Chain Monte Carlo method to better understand the parameter space of the assumed model. We use the Kuiper test, similar…

High Energy Astrophysical Phenomena · Physics 2012-06-27 Peter L. Gonthier , Caleb D. Billman , Alice K. Harding

Current wisdom accounts to the diversity of neutron star observational manifestations to their birth scenarios, influencing their thermal and magnetic field evolution. Among the kind of observed neutron stars, radio pulsars represent by far…

High Energy Astrophysical Phenomena · Physics 2022-11-16 Ludmilla Dirson , Jérôme Pétri , Dipanjan Mitra

We are coming to believe that stellar populations in globular clusters are not as simple as they were once thought to be. A growing amount of photometric and spectroscopic evidence shows that globular clusters host at least two different…

On the basis of the PSRPOPPY software package, we developed an evolution model of population synthesis for isolated radio pulsars by incorporating the fan beam model, an alternative radio emission beam model to the widely used conal beam…

High Energy Astrophysical Phenomena · Physics 2021-01-06 W. J. Huang , H. G. Wang

A new tool for the Evolutionary Synthesis of Stellar Populations (EPS) is presented, which is based on three independent matrices, giving respectively: 1) the fuel consumption during each evolutionary phase as a function of stellar mass; 2)…

Astrophysics · Physics 2009-10-30 Claudia Maraston

We have performed population synthesis calculation on the formation of binaries containing a black hole (BH) and a neutron star (NS) in the Galactic disk. Some of important input parameters, especially for the treatment of common envelope…

High Energy Astrophysical Phenomena · Physics 2018-05-02 Yong Shao , Xiang-Dong Li

Binaries are very common in galaxies, and more than half of Galactic hot subdwarf stars, which are thought as a possible origin of UV-upturn of old stellar populations, are found in binaries. Previous works showed that binary evolution can…

Astrophysics of Galaxies · Physics 2015-06-12 Zhongmu Li , Caiyan Mao , Li Chen , Qian Zhang , Maocai Li

The sheer number of pulsars discovered by the SKA, in combination with the exceptional timing precision it can provide, will revolutionize the field of pulsar astrophysics. The SKA will provide a complete census of pulsars in both the…

Astrophysics · Physics 2011-07-19 J. M. Cordes , M. Kramer , T. J. W. Lazio , B. W. Stappers , D. C. Backer , S. Johnston

Binary populations in young star clusters show multiplicity fractions both lower and up to twice as high as those observed in the Galactic field. We follow the evolution of a population of binary stars in dense and loose star clusters…

Astrophysics of Galaxies · Physics 2015-06-05 Michael Marks , Pavel Kroupa

A theoretical approach relying on evolutionary population synthesis models could help refining the search criteria in deep galaxy surveys on the basis of a better knowledge of the expected apparent photometric properties of high-redshift…

Astrophysics · Physics 2007-05-23 Alberto Buzzoni

Aims. The mass discrepancy between the observed population of double neutron star binaries by radio pulsar observations and gravitational-wave observation requires an explanation. Methods. Binary population synthesis calculations are…

Solar and Stellar Astrophysics · Physics 2020-07-22 Matthias U. Kruckow

White dwarfs (WDs) are powerful tools to study the evolutionary history of stars and binaries in the Galaxy. But do we understand their multiplicity from a theoretical point of view? This can be tested by a comparison with the sample of WDs…

Solar and Stellar Astrophysics · Physics 2017-04-26 S. Toonen , M. Hollands , B. T. Gaensicke , T. Boekholt

We review the properties and applications of binary and millisecond pulsars. Our knowledge of these exciting objects has greatly increased in recent years, mainly due to successful surveys which have brought the known pulsar population to…

Astrophysics · Physics 2016-11-23 D. R. Lorimer

Using "Scenario Machine" we have carried out population synthesis of radio pulsar with black hole binaries (BH+Psr) in context of the most wide assumptions about star mass loss during evolution, binary stars mass ratio distribution, kick…

Astrophysics · Physics 2009-11-10 V. M. Lipunov , A. I. Bogomazov , M. K. Abubekerov

We briefly review some constraints (Owing to the limited number of pages of present review, only a sub-sample of the topics discussed during the talk are briefly summarized. For the interested readers we are pleased to send them upon…

Astrophysics · Physics 2009-11-13 S. Cassisi
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