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investigation of Stars In the Milky way with Bayesian statistics and Asteroseismology

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Tag: ditte

Papers

Asteroseismology of the Hyades red giant and planet host epsilon Tau

Torben Arentoft, Frank Grundahl, Timothy R. White, Ditte Slumstrup, Rasmus Handberg, Mikkel N. Lund, Karsten Brogaard, Mads F. Andersen, Victor Silva Aquirre, Chunguang Zhang, Xiaodian Chen, Zhengzhou Yan, Benjamin J.S. Pope, Daniel Huber, Hans Kjeldsen, Jørgen Christensen-Dalsgaard, Jens Jessen-Hansen, Victoria Antoci, Søren Frandsen, Timothy R. Bedding, Pere L. Palle, Rafael A. Garcia, Licai Deng, Marc Hon, Dennis Stello, Uffe G. Jørgensen

Asteroseismology of the Hyades red giant and planet host epsilon Tau
See arXiv version
13 pages, 13 figures, 4 tables, accepted for publication in Astronomy & Astrophysics

Continue reading “Asteroseismology of the Hyades red giant and planet host epsilon Tau” →

January 18, 2019February 2, 2019ditte, mikkel, victorLeave a comment
Papers

Systematic Differences in Spectroscopic Analysis of Red Giants

Ditte Slumstrup, Frank Grundahl, Victor Silva Aguirre, Karsten Brogaard

Systematic Differences in Spectroscopic Analysis of Red Giants
See arXiv version
Accepted for publication in Astronomy and Astrophysics

Continue reading “Systematic Differences in Spectroscopic Analysis of Red Giants” →

December 13, 2018February 2, 2019ditte, victorLeave a comment
Papers

Confirming chemical clocks: asteroseismic age dissection of the Milky Way disk(s)

Silva Aguirre, V.; Bojsen-Hansen, M.; Slumstrup, D.; Casagrande, L.; Kawata, D.; Ciuca, I.; Lund, M. N.; Mosumgaard, J. R.; Huber, D.; Johnson, J. A.; Pinsonneault, M. H.; Serenelli, A. M.; Stello, D.; Tayar, J.; Bird, J. C.; Cassisi, S.; Hon, M.; Martig, M.; Nissen, P. E.; Rix, H. W.; Schönrich, R.; Sahlholdt, C.; Trick, W. H.; Yu, J.

Confirming chemical clocks: asteroseismic age dissection of the Milky Way disk(s),
Monthly Notices of the Royal Astronomical Society, Vol. 475, Issue 4

Continue reading “Confirming chemical clocks: asteroseismic age dissection of the Milky Way disk(s)” →

April 21, 2018March 10, 2018ditte, jakob, mikkel, victorLeave a comment
Papers

Establishing the accuracy of asteroseismic mass and radius estimates of giant stars. I. Three eclipsing systems at [Fe/H]~-0.3 and the need for a large high-precision sample.

Brogaard, K., Hansen, C. J., Miglio, A., Slumstrup, D., Frandsen, S., Jessen-Hansen, J., Lund, M. N., Bossini, D., Thygesen, A., Davies, G. R., Chaplin, W. J., Arentoft,  T., Bruntt, H., Grundahl, F., Handberg, R.

Establishing the accuracy of asteroseismic mass and radius estimates of giant stars. I. Three eclipsing systems at [Fe/H]~-0.3 and the need for a large high-precision sample.

Monthly Notices of the Royal Astronomical Society

Continue reading “Establishing the accuracy of asteroseismic mass and radius estimates of giant stars. I. Three eclipsing systems at [Fe/H]~-0.3 and the need for a large high-precision sample.” →

February 1, 2018March 10, 2018ditte, mikkelLeave a comment
Papers

NGC 6819: testing the asteroseismic mass scale, mass loss and evidence for products of non-standard evolution

Handberg, R.; Brogaard, K.; Miglio, A.; Bossini, D.; Elsworth, Y.; Slumstrup, D.; Davies, G. R.; Chaplin, W. J.

NGC 6819: testing the asteroseismic mass scale, mass loss and evidence for products of non-standard evolution,
Monthly Notices of the Royal Astronomical Society, Vol 472, Issue 1

Continue reading “NGC 6819: testing the asteroseismic mass scale, mass loss and evidence for products of non-standard evolution” →

November 21, 2017January 17, 2018ditteLeave a comment
Papers

High-precision abundances of elements in Kepler LEGACY stars. Verification of trends with stellar age

Nissen, P. E.; Silva Aguirre, V.; Christensen-Dalsgaard, J.; Collet, R.; Grundahl, F.; Slumstrup, D.

High-precision abundances of elements in Kepler LEGACY stars. Verification of trends with stellar age,
Accepted for publication in A&A

Continue reading “High-precision abundances of elements in Kepler LEGACY stars. Verification of trends with stellar age” →

October 11, 2017January 17, 2018ditte, victorLeave a comment
Papers

The [Y/Mg] clock works for evolved solar metallicity stars

Slumstrup, D.; Grundahl, F.; Brogaard, K.; Thygesen, A. O.; Nissen, P. E.; Jessen-Hansen, J.; Van Eylen, V.; Pedersen, M. G.

The [Y/Mg] clock works for evolved solar metallicity stars.,
Astronomy & Astrophysics, Vol. 604, Issue 8.

Continue reading “The [Y/Mg] clock works for evolved solar metallicity stars” →

August 1, 2017January 17, 2018ditteLeave a comment
Papers

The K2-ESPRINT Project V: A Short-period Giant Planet Orbiting a Subgiant Star

Van Eylen, Vincent; Albrecht, Simon; Gandolfi, Davide; Dai, Fei; Winn, Joshua N.; Hirano, Teriyuki; Narita, Norio; Bruntt, Hans; Prieto-Arranz, Jorge; Béjar, Víctor J. S.; Nowak, Grzegorz; Lund, Mikkel N.; Palle, Enric; Ribas, Ignasi; Sanchis-Ojeda, Roberto; Yu, Liang; Arriagada, Pamela; Butler, R. Paul; Crane, Jeffrey D.; Handberg, Rasmus; Deeg, Hans; Jessen-Hansen, Jens; Johnson, John A.; Nespral, David; Rogers, Leslie; Ryu, Tsuguru; Shectman, Stephen; Shrotriya, Tushar; Slumstrup, Ditte; Takeda, Yoichi; Teske, Johanna; Thompson, Ian; Vanderburg, Andrew; Wittenmyer, Robert

The K2-ESPRINT Project V: A Short-period Giant Planet Orbiting a Subgiant Star,
The Astronomical Journal, Vol. 152, Issue 5

Continue reading “The K2-ESPRINT Project V: A Short-period Giant Planet Orbiting a Subgiant Star” →

November 1, 2016January 17, 2018ditte, mikkelLeave a comment
Papers

K2-31B, a Grazing Transiting Hot Jupiter on a 1.26-day Orbit around a Bright G7V Star

Grziwa, Sascha; Gandolfi, Davide; Csizmadia, Szilard; Fridlund, Malcolm; Parviainen, Hannu; Deeg, Hans J.; Cabrera, Juan; Djupvik, Amanda A.; Albrecht, Simon; Palle, Enric B.; Pätzold, Martin; Béjar, Victor J. S.; Prieto-Arranz, Jorge; Eigmüller, Philipp; Erikson, Anders; Fynbo, Johan P. U.; Guenther, Eike W.; Hatzes, Artie P.; Kiilerich, Amanda; Korth, Judith; Kuutma, Teet; Montañés-Rodríguez, Pilar; Nespral, David; Nowak, Grzegorz; Rauer, Heike; Saario, Joonas; Sebastian, Daniel; Slumstrup, Ditte

K2-31B, a Grazing Transiting Hot Jupiter on a 1.26-day Orbit around a Bright G7V Star,
The Astronomical Journal, Vol. 152, Issue 5

Continue reading “K2-31B, a Grazing Transiting Hot Jupiter on a 1.26-day Orbit around a Bright G7V Star” →

November 1, 2016January 17, 2018ditteLeave a comment
Papers

A pulsation analysis of K2 observations of the subdwarf B star PG 1142-037 during Campaign 1: A subsynchronously rotating ellipsoidal variable

Reed, M. D.; Baran, A. S.; Østensen, R. H.; Telting, J. H.; Kern, J. W.; Bloemen, S.;  Blay, P.; Pursimo, T.; Kuutma, T.; Slumstrup, D.; Saajasto, M.; Nielsen, L. D.; Harmanen, J.; Winans, A. J.; Foster, H. M.; Rowe, L.

A pulsation analysis of K2 observations of the subdwarf B star PG 1142-037 during Campaign 1: A subsynchronously rotating ellipsoidal variable,
Monthly Notices of the Royal Astronomical Society, Vol. 458, Issue 2.

Continue reading “A pulsation analysis of K2 observations of the subdwarf B star PG 1142-037 during Campaign 1: A subsynchronously rotating ellipsoidal variable” →

May 11, 2016January 17, 2018ditteLeave a comment

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Recent

  • Scaling relations of convective granulation noise across the HR diagram from 3D stellar atmosphere models
  • Disc dichotomy signature in the vertical distribution of [Mg/Fe] and the delayed gas infall scenario
  • The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar and APOGEE-2 Data
  • Chemo-dynamics and asteroseismic ages of seven metal-poor red giants from the Kepler field
  • The SAPP pipeline for the determination of stellar abundances and atmospheric parameters of stars in the core program of the PLATO mission

News

  • Scaling relations of convective granulation noise across the HR diagram from 3D stellar atmosphere models
  • Disc dichotomy signature in the vertical distribution of [Mg/Fe] and the delayed gas infall scenario
  • The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar and APOGEE-2 Data
  • Chemo-dynamics and asteroseismic ages of seven metal-poor red giants from the Kepler field
  • The SAPP pipeline for the determination of stellar abundances and atmospheric parameters of stars in the core program of the PLATO mission

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