Asteroseismology of the Hyades with K2: first detection of main-sequence solar-like oscillations in an open cluster

Lund, Mikkel N.; Basu, Sarbani; Aguirre, V. Silva; Chaplin, W. J.; Serenelli, Aldo; García, R. A.; Latham, David W.; Casagrande, Luca; Bieryla, Allyson; Davies, G. R.; Viani, Lucas S.; Buchhave, Lars A.; Miglio, A.; Soderblom, David R.; Valenti, Jeff A.; Stefanik, R. P.; Handberg, R.

doi:10.1093/mnras/stw2160

Cited by 24 publications

(15 citation statements)

References 113 publications

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“…22 the ensemble of solar-like stars with measured pulsations is shown in a seismic HR diagram, i.e., plotting the large frequency separation as a function of the effective temperature. In the top panel are represented ground-based Doppler-velocity observations (black triangles) (Bouchy and Carrier 2002;Kjeldsen et al 2003Kjeldsen et al , 2005Kjeldsen et al , 2008aMartic et al 2004;Bouchy et al 2005;Bedding et al 2006Bedding et al , 2010bCarrier and Eggen-berger 2006;Mosser et al 2008;Bonanno et al 2008;Teixeira et al 2009;Bazot et al 2011, and references therein), CoRoT observations (green triangles) (Appourchaux et al 2008;Benomar et al 2009b;Barban et al 2009Barban et al , 2013García et al 2009;Mosser et al 2009b;Deheuvels et al 2010a;Mathur et al 2010aMathur et al , 2013aBallot et al 2011b;Ozel et al 2013;Boumier et al 2014), Kepler observations (Mathur et al 2011a;Campante et al 2011;Deheuvels et al 2012;Metcalfe et al 2012;García et al 2014c;Appourchaux et al 2015;Guzik et al 2016;White et al 2017), and K2 observations (Lund et al 2016a;Van Eylen et al 2018b) not included in ensemble analyses. In the bottom panel ensemble analyses of Kepler field stars (magenta circles, Chaplin et al 2014a), Kepler stars hosting planets (red squares,…”

Section: Ensemble Observational Asteroseismologymentioning

confidence: 99%

Asteroseismology of solar-type stars

García

Ballot

2019

Living Rev Sol Phys

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155

100

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Until the last few decades, investigations of stellar interiors had been restricted to theoretical studies only constrained by observations of their global properties and external characteristics. However, in the last 30 years the field has been revolutionized by the ability to perform seismic investigations of stellar interiors. This revolution begun with the Sun, where helioseismology has been yielding information competing with what can be inferred about the Earth’s interior from geoseismology. The last two decades have witnessed the advent of asteroseismology of solar-like stars, thanks to a dramatic development of new observing facilities providing the first reliable results on the interiors of distant stars. The coming years will see a huge development in this field. In this review we focus on solar-type stars, i.e., cool main-sequence stars where oscillations are stochastically excited by surface convection. After a short introduction and a historical overview of the discipline, we review the observational techniques generally used, and we describe the theory behind stellar oscillations in cool main-sequence stars. We continue with a complete description of the normal mode analyses through which it is possible to extract the physical information about the structure and dynamics of the stars. We then summarize the lessons that we have learned and discuss unsolved issues and questions that are still unanswered.

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Section: Ensemble Observational Asteroseismologymentioning

confidence: 99%

Asteroseismology of solar-type stars

García

Ballot

2019

Living Rev Sol Phys

Self Cite

155

100

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“…The future is bright for cluster seismology as new oscillators are being discovered. Lund et al (Lund et al, 2016) found main-sequence pulsators for the first time in an open cluster-the young Hyades cluster. Pulsating giants have also been observed in the solar metallicity cluster M67 .…”

Section: Stellar Clustersmentioning

confidence: 98%

Solar-Like Oscillators in the Kepler Era: A Review

Jackiewicz

2021

Front. Astron. Space Sci.

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Many late-type stars across the Milky Way exhibit observable pulsations similar to our Sun that open up a window into stellar interiors. The NASA Kepler mission, a space-based photometric telescope, measured the micro-magnitude luminosity fluctuations caused by solar-like oscillations of tens of thousands of stars for almost 10 years. Detailed stellar structure, evolution, and oscillation theoretical work established in the decades before, such as predictions about mode mixing in the interior of red-giant stars, among many others, now had voluminous precision data against which it could be tested. The overwhelming result is the general validation of the theory of stellar oscillations as well as stellar-structure models; however, important gaps in our understanding of interior physics was also revealed by Kepler. For example, interior rotation, convection, and mixing processes are complex phenomena not fully captured by standard models. This review explores some of the important impacts Kepler observations of solar-like oscillations across the cool end of the H-R diagram has had on stellar astrophysics through the use of asteroseismology.

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“…The detection of oscillations in thousands of low-mass stars generated the unprecedented systematic measurement of fundamental stellar properties such masses, radii and ages with very high precision on a massive scale (Chaplin & Miglio 2013). Of particular relevance, asteroseismic ages are now used to calibrate parameters derived from gyrochronology (van Saders et al 2016) or magnetic activity (Metcalfe & Egeland, 2019), and can probe stars as young as several hundred Myr (Lund et al 2016).…”

Section: Measuring Stellar Agesmentioning

confidence: 99%

Mapping out the time-evolution of exoplanet processes

Christiansen,

Beichman,

Ciardi

et al. 2019

Preprint

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There are many competing theories and models describing the formation, migration and evolution of exoplanet systems. As both the precision with which we can characterize exoplanets and their host stars, and the number of systems for which we can make such a characterization increase, we begin to see pathways forward for validating these theories. In this white paper we identify predicted, observable correlations that are accessible in the near future, particularly trends in exoplanet populations, radii, orbits and atmospheres with host star age. By compiling a statistically significant sample of well-characterized exoplanets with precisely measured ages, we should be able to begin identifying the dominant processes governing the time-evolution of exoplanet systems.

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Asteroseismology of the Hyades with K2: first detection of main-sequence solar-like oscillations in an open cluster

Cited by 24 publications

References 113 publications

Asteroseismology of solar-type stars

Asteroseismology of solar-type stars

Solar-Like Oscillators in the Kepler Era: A Review

Mapping out the time-evolution of exoplanet processes

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