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One-dimensional stellar evolution models have been successful at representing the structure and evolution of stars in diverse astrophysical contexts, but complications have been noted in the context of young, magnetically active stars, as…

Solar and Stellar Astrophysics · Physics 2020-03-11 Garrett Somers , Lyra Cao , Marc H. Pinsonneault

The search for the origin of cosmic rays is as active as ever, mainly driven by new insights provided by recent pieces of observation. Much effort is being channelled in putting the so called supernova paradigm for the origin of galactic…

High Energy Astrophysical Phenomena · Physics 2018-05-02 R. Aloisio , P. Blasi , I. De Mitri , S. Petrera

In this short paper, we study the photometric precision of stellar light curves obtained by the CoRoT satellite in its planet finding channel, with a particular emphasis on the timescales characteristic of planetary transits. Together with…

A leap forward has been performed due to the space-borne missions, MOST, CoRoT and Kepler. They provided a wealth of observational data, and more precisely oscillation spectra, which have been (and are still) exploited to infer the internal…

Solar and Stellar Astrophysics · Physics 2016-02-17 R. Samadi , K. Belkacem , T. Sonoi

Context. The pioneer space mission for photometric planet searches, CoRoT, steadily monitors about 12,000 stars in each of its fields of view; it is able to detect transit candidates early in the processing of the data and before the end of…

Over the past decade the study of solar-like oscillations in red-giant stars has developed significantly. Not only the number of red-giant stars for which solar-like oscillations have been observed has increased, but the quality of these…

Solar and Stellar Astrophysics · Physics 2015-05-19 S. Hekker

Stellar activity cycles are the manifestation of dynamo process running in the stellar interiors. They have been observed during years to decades thanks to the measurement of stellar magnetic proxies at the surface of the stars such as the…

Solar and Stellar Astrophysics · Physics 2015-06-12 S. Mathur , R. A. Garcia , A. Morgenthaler , D. Salabert , P. Petit , J. Ballot , C. Regulo , C. Catala

The recent detection of the transit of very massive substellar companions (CoRoT-3b, Deleuil et al. 2008; CoRoT-15b, Bouchy et al. 2010; WASP-30b, Anderson et al. 2010; Hat-P-20b, Bakos et al. 2010) provides a strong constraint to planet…

Earth and Planetary Astrophysics · Physics 2015-05-20 Jérémy Leconte , Gilles Chabrier , Isabelle Baraffe , Benjamin Levrard

Red-giant stars are low- to intermediate-mass ($M \lesssim 10$~M$_{\odot}$) stars that have exhausted hydrogen in the core. These extended, cool and hence red stars are key targets for stellar evolution studies as well as galactic studies…

Solar and Stellar Astrophysics · Physics 2017-11-29 Saskia Hekker

The CoRoT satellite has made available high precision photometric observations of a large number of stars of different spectral types. Continuous photometric time series allow the characterization of stellar microvariability in a systematic…

Solar and Stellar Astrophysics · Physics 2015-03-19 J. C. Hulot , F. Baudin , R. Samadi , M. J. Goupil

Oscillation modes with a mixed character, as observed in evolved low-mass stars, are highly sensitive to the physical properties of the innermost regions. Measuring their properties is therefore extremely important to probe the core, but…

Solar and Stellar Astrophysics · Physics 2018-10-24 B. Mosser , C. Gehan , K. Belkacem , R. Samadi , E. Michel , M-J. Goupil

Evidence of magnetic interaction between late-type stars and close-in giant planets is provided by the observations of stellar hot spots rotating synchronously with the planets and showing an enhancement of chromospheric and X-ray fluxes.…

Solar and Stellar Astrophysics · Physics 2015-05-13 A. F. Lanza

Topical problems in the physics of and basic facts about neutron stars are reviewed. The observational manifestations of neutron stars, their core and envelope structure, magnetic fields, thermal evolution, and masses and radii are briefly…

Solar and Stellar Astrophysics · Physics 2011-06-23 A. Y. Potekhin

Massive stars are important metal factories in the Universe. They have short and energetic lives, and many of them inevitably explode as a supernova and become a neutron star or black hole. In turn, the formation, evolution and explosive…

Solar and Stellar Astrophysics · Physics 2020-08-26 Dominic M. Bowman

The stellar populations of galaxies contain a wealth of detailed information. From the youngest, most massive stars, to almost invisible remnants, the history of star formation is encoded in the stars that make up a galaxy. Extracting some,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Jarle Brinchmann

Observations of the high redshift Universe, interpreted in the context of a new generation of computer simulated model Universes, are providing new insights into the processes by which galaxies and quasars form and evolve, as well as the…

Astrophysics · Physics 2007-05-23 Jill Bechtold , Richard Elston , Howard K. C. Yee , Erica Ellingson , Roc M. Cutri

Improving our understanding of the initial conditions and earliest stages of star formation is crucial to gain insight into the origin of stellar masses, multiple systems, and protoplanetary disks. We review the properties of low-mass dense…

Astrophysics · Physics 2008-01-29 Philippe André , Shantanu Basu , Shu-ichiro Inutsuka

The space mission CoRoT (COnvection, ROtation and planetary Transits) will offer the possibility to detect extrasolar planets by means of the transit method. The satellite will observe about 60000 targets in the range 11.0<V<16.0, located…

Astrophysics · Physics 2007-05-23 E. Poretti , A. F. Lanza , C. Maceroni , I. Pagano , V. Ripepi

In this work we shortly review several aspects of the physics of neutron stars. After the introduction we present a brief historical overview of the idea of neutron stars as well as of the theoretical and observational developments that…

Nuclear Theory · Physics 2018-05-03 Isaac Vidana

After the first meeting in Copenhagen in 2001 QSQCD II is the second workshop in this series dealing with cosmic matter at very high density and its astrophysical implications. The aim is to bring together reseachers in the physics of…

Solar and Stellar Astrophysics · Physics 2009-12-02 Jochen Wambach