The Surface Composition of Six Newly Discovered Chemically Peculiar Stars. Comparison to the HgMn Stars mu Lep and beta Scl and the Superficially Normal B Star nu Cap

Autor: Richard Monier, E. Niemczura, D. W. Kurtz, S. Rappaport, D. M. Bowman, Simon J. Murphy, Yveline Lebreton, Remko Stuik, Morgan Deal, Thibault Merle, T. Kılıçoğlu, M. Gebran, Ewen Le Ster

Publikováno v: The Astronomical Journal, Vol 166, Iss 2, p 54 (2023)

We report on a detailed abundance study of six bright, mostly southern, slowly rotating late B-stars: HD 1279 (B8III), HD 99803 (B9V), HD 123445 (B9V), HD 147550 (B9V), HD 171961 (B8III), and HD 202671 (B5II/III), hitherto reported as normal stars. W

Externí odkaz: https://doaj.org/article/92d1b0681b50497681ece8c7ae23af1c

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TESS cycle 1 observations of roAp stars with 2-min cadence data

Autor: Aliz Derekas, N. Hatamkhani, D. W. Kurtz, T. Richey-Yowell, J. Pascual-Granado, P. Lampens, K. R. Pollard, Roland Vanderspek, A. García Hernández, Joyce A. Guzik, Ádám Sódor, Fangfei Shi, Catherine Lovekin, Zs. Bognár, Simon J. Murphy, Oleh Kobzar, Victoria Antoci, Viktor Khalack, Barry Smalley, A. Samadi-Ghadim, Dominic M. Bowman, A. David-Uraz, Derek Buzasi, E. Brunsden, M. Lares-Martiz, Oleg Kochukhov, Ivanka Stateva, T. Z. Yang, E. Niemczura, Dogus Ozuyar, Rasmus Handberg, P. Mikołajczyk, A. Ramón-Ballesta, T. S. Lambert, L. Fox-Machado, J. Sikora, P. Quitral-Manosalva, David Mkrtichian, Richard Monier, M. S. Cunha, Róbert Szabó, Daniel R. Hey, Daniel Luke Holdsworth, Ernst Paunzen

Publikováno v: Digibug. Repositorio Institucional de la Universidad de Granada
instname
Digital.CSIC. Repositorio Institucional del CSIC
Holdsworth, D L, Cunha, M S, Kurtz, D W, Antoci, V, Hey, D R, Bowman, D M, Kobzar, O, Buzasi, D L, Kochukhov, O, Niemczura, E, Ozuyar, D, Shi, F, Szabó, R, Samadi-Ghadim, A, Bognár, Z, Fox-Machado, L, Khalack, V, Lares-Martiz, M, Lovekin, C C, Mikołajczyk, P, Mkrtichian, D, Pascual-Granado, J, Paunzen, E, Richey-Yowell, T, Sódor, Á, Sikora, J, Yang, T Z, Brunsden, E, David-Uraz, A, Derekas, A, Hernández, A G, Guzik, J A, Hatamkhani, N, Handberg, R, Lambert, T S, Lampens, P, Murphy, S J, Monier, R, Pollard, K R, Quitral-Manosalva, P, Ramón-Ballesta, A, Smalley, B, Stateva, I & Vanderspek, R 2021, ' TESS Cycle 1 observations of roAp stars with 2-min cadence data ', Monthly Notices of the Royal Astronomical Society, vol. 506, pp. 1073–1110 . https://doi.org/10.1093/mnras/stab1578

We thank the anonymous referee for a careful reading of the manuscript. DLH acknowledges financial support from the Science and Technology Facilities Council (STFC) via grant ST/M000877/1. MSC acknowledges the support by FCT/MCTES through the researc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14c04df5a1f169bc9b2c3e777df87226
http://hdl.handle.net/10481/71174

Spectroscopy of hot Gamma Doradus and A-F hybrid Kepler candidates close to the hot border of the Delta Scuti instability strip

Autor: Gerald Handler, Giovanni Catanzaro, Barry Smalley, Ennio Poretti, E. Niemczura, Monica Rainer, F. Kahraman Aliçavuş

If Gamma Dor-type pulsations are driven by the convective blocking mechanism, a convective envelope at a sufficient depth is essential. There are several hot Gamma Dor and hybrid star candidates in which there should not be an adequate convective env

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf3e952b86ff8d856d54395d97bacb2c
http://arxiv.org/abs/2002.04669

ELT-HIRES, the high resolution spectrograph for the ELT: the Phase A study and the path to construction

Autor: François Bouchy, Andrzej Niedzielski, Thomas Marquart, Stefano Cristiani, Giuseppina Micela, Matteo Genoni, Livia Origlia, Eric Stempels, Philipp Huke, A. Fragoso, I. de Castro Leão, G. Pietrzynski, Valentina D'Odorico, Erik Zackrisson, C. Hansen, E. Niemczura, Graham J. Murray, D. Sosnowska, Andreas Korn, Edwin A. Bergin, Michella Grey Araújo Monteiro, A. Cabral, A. Humphrey, M. R. Zapatero Osorio, P. Figueira, Stefano Covino, Sheila Vilarindo de Sousa, E. Gallo, John D. Monnier, Matteo Aliverti, Igor Coretti, Jose Luis Rasilla, G. Cupani, Sergio Ribeiro Augusto, David Lunney, José Peñate, Luca Pasquini, Lise Christensen, Klaus G. Strassmeier, Phil Rees, Andrea Chiavassa, Marco Riva, C. Lovis, Alessandro Marconi, B. L. Canto Martins, Étienne Artigau, B. Chazelas, Vardan Adibekyan, Enrico Pinna, Nelson J. Nunes, Christoph Mordasini, F. Sortino, Raffaele Gratton, Enric Palle, Rafael Rebolo, Lison Malo, Holger Drass, Isabelle Boisse, Tzu-Chiang Shen, P. Maslowski, I. Hughes, F. Tenegi, P. Parr-Burman, Hans Kjeldsen, René Doyon, A. Mucciarelli, Pedro J. Amado, J. I. González Hernández, Björn Benneke, Andrea Tozzi, Elena Mason, Johan P. U. Fynbo, Roberto Maiolino, M. Woche, C. Allende Prieto, Nikolai Piskunov, M. Amate, D. Romano, Nicoletta Sanna, J. R. De Medeiros, Tim Morris, P. Di Marcantonio, M. Sarajlic, A. Pollo, Xavier Bonfils, R. Calvo-Ortega, Francesco Pepe, Marco Xompero, Paolo Molaro, Roberto Cirami, Philippe Berio, G. Cresci, N. Bezawada, B. Nisini, L. Vanzi, J. Hlavacek-Larrondo, Ansgar Reiners, Ernesto Oliva, Manuel Abreu, M. A. F. de Souza, Stéphane Udry, Martin G. Haehnelt, Luca Valenziano, Michael Weber, S. Becerril, S. Rousseau, Cristina Martins, C. Broeg, Marco Landoni, S. C. C. Barros, V. Cunha Parro, Jochen Liske, I. Di Varano, Driss Kouach, Giorgio Pariani

Publikováno v: Ground-based and Airborne Instrumentation for Astronomy VIII
Ground-based and Airborne Instrumentation for Astronomy VIII, Dec 2020, Online Only, France. pp.394, ⟨10.1117/12.2560489⟩

HIRES is the high-resolution spectrograph of the European Extremely Large Telescope at optical and near-infrared wavelengths. It consists of three fibre-fed spectrographs providing a wavelength coverage of 0.4-1.8 µm (goal 0.35-2.4 µm) at a spectra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eea195771d71e3666f459bc161faf8a8
http://hdl.handle.net/20.500.12386/31409