Zobrazeno 1 - 10
of 490
pro vyhledávání: '"Elsworth Y. P."'
Autor:
Vrard, M., Pinsonneault, M. H., Elsworth, Y., Hon, M., Kallinger, T., Kuszlewicz, J., Mosser, B., Garcia, R. A., Tayar, J., Bennett, R., Cao, K., Hekker, S., Loyer, L., Mathur, S., Stello, D.
Evolved cool stars have three distinct evolutionary status: shell Hydrogen-burning (RGB), core Helium and shell Hydrogen burning (RC), and double shell burning (AGB). Asteroseismology can distinguish between the RC and the other status, but distingui
Externí odkaz:
http://arxiv.org/abs/2411.03101
Autor:
Grisoni, V., Chiappini, C., Miglio, A., Brogaard, K., Casali, G., Willett, E., Montalbán, J., Stokholm, A., Thomsen, J. S., Tailo, M., Matteuzzi, M., Valentini, M., Elsworth, Y., Mosser, B.
The origin of apparently young $\alpha$-rich stars in the Galaxy is still a matter of debate in Galactic archaeology, whether they are genuinely young or might be products of binary evolution and merger/mass accretion. We aim to shed light on the nat
Externí odkaz:
http://arxiv.org/abs/2312.07091
We present solar low-degree rotational splitting values based on a new analysis of Sun-as-a-star observations from the Birmingham Solar Oscillations Network, covering a 16,425-day period from 1976 December 31--2021 December 20 with a duty cycle of 57
Externí odkaz:
http://arxiv.org/abs/2309.02972
Global stellar oscillations probe the internal structure of stars. In low- to intermediate-mass red giants, these oscillations provide signatures from both the outer regions of the star as well as from the core. These signatures are imprinted in e.g.
Externí odkaz:
http://arxiv.org/abs/2305.10578
Autor:
Casali, G., Grisoni, V., Miglio, A., Chiappini, C., Matteuzzi, M., Magrini, L., Willett, E., Cescutti, G., Matteucci, F., Stokholm, A., Tailo, M., Montalban, J., Elsworth, Y., Mosser, B.
Publikováno v:
A&A 677, A60 (2023)
Abundances of s-capture process elements in stars with exquisite asteroseismic, spectroscopic, and astrometric constraints offer a novel opportunity to study stellar evolution, nucleosynthesis, and Galactic chemical evolution. We aim to investigate o
Externí odkaz:
http://arxiv.org/abs/2305.06396
The Birmingham Solar Oscillations Network (BiSON) observes acoustic oscillations of the Sun. The dominant noise source is caused by fluctuations of Earth's atmosphere, and BiSON seeks to mitigate this effect by combining multiple rapid observations i
Externí odkaz:
http://arxiv.org/abs/2303.00518
We describe a new spectrophotometer for the Birmingham Solar Oscillations Network (BiSON), based on a next generation observation platform, BiSON:NG, a significantly miniaturised system making use of inexpensive consumer-grade hardware and off-the-sh
Externí odkaz:
http://arxiv.org/abs/2210.11293
We examine the solar-cycle variation of the power in the low-degree helioseismic modes by looking at binned power spectra from 45 years of observations with the Birmingham Solar Oscillations Network, which provides a more robust estimate of the mode
Externí odkaz:
http://arxiv.org/abs/2205.15655
Autor:
Pezzotti, C., Ottoni, G., Buldgen, G., Lyttle, A., Eggenberger, P., Udry, S., Ségransan, D., Mayor, M., Lovis, C., Marmier, M., Miglio, A., Elsworth, Y., Davies, G. R., Ball, W. H.
Context. Increasing the number of detected exoplanets is far from anecdotal, especially for long-period planets that require a long duration of observation. More detections imply a better understanding of the statistical properties of exoplanet popul
Externí odkaz:
http://arxiv.org/abs/2201.01553
Autor:
Buldgen, G., Ottoni, G., Pezzotti, C., Lyttle, A., Eggenberger, P., Udry, S., Ségransan, D., Miglio, A., Mayor, M., Lovis, C., Elsworth, Y., Davies, G. R., Ball, W. H.
The advent of asteroseismology as the golden path to precisely characterize single stars naturally led to synergies with the field of exoplanetology. Today, the precise determination of stellar masses, radii and ages for exoplanet-host stars is a dri
Externí odkaz:
http://arxiv.org/abs/2201.01530