Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Maria Bergemann"'
Autor:
Alexander P. Ji, Sanjana Curtis, Nicholas Storm, Vedant Chandra, Kevin C. Schlaufman, Keivan G. Stassun, Alexander Heger, Marco Pignatari, Adrian M. Price-Whelan, Maria Bergemann, Guy S. Stringfellow, Carla Fröhlich, Henrique Reggiani, Erika M. Holmbeck, Jamie Tayar, Shivani P. Shah, Emily J. Griffith, Chervin F. P. Laporte, Andrew R. Casey, Keith Hawkins, Danny Horta, William Cerny, Pierre Thibodeaux, Sam A. Usman, João A. S. Amarante, Rachael L. Beaton, Phillip A. Cargile, Cristina Chiappini, Charlie Conroy, Jennifer A. Johnson, Juna A. Kollmeier, Haining Li, Sarah Loebman, Georges Meynet, Dmitry Bizyaev, Joel R. Brownstein, Pramod Gupta, Sean Morrison, Kaike Pan, Solange V. Ramirez, Hans-Walter Rix, José Sánchez-Gallego
Publikováno v:
The Astrophysical Journal Letters, Vol 961, Iss 2, p L41 (2024)
Stars that formed with an initial mass of over 50 M _⊙ are very rare today, but they are thought to be more common in the early Universe. The fates of those early, metal-poor, massive stars are highly uncertain. Most are expected to directly collap
Externí odkaz:
https://doaj.org/article/cb019f1a53ca4e8bbf8ef53fff9533f7
Autor:
Alexander P. Ji, Joshua D. Simon, Ian U. Roederer, Ekaterina Magg, Anna Frebel, Christian I. Johnson, Ralf S. Klessen, Mattis Magg, Gabriele Cescutti, Mario Mateo, Maria Bergemann, John I. Bailey III
Publikováno v:
The Astronomical Journal, Vol 165, Iss 3, p 100 (2023)
The ultrafaint dwarf galaxy Reticulum II was enriched by a single rare and prolific r -process event. The r -process content of Reticulum II thus provides a unique opportunity to study metal mixing in a relic first galaxy. Using multi-object high-res
Externí odkaz:
https://doaj.org/article/57b2a0a0aa9c4a76803aa68050dd8709
Publikováno v:
Atoms, Vol 8, Iss 3, p 34 (2020)
Rate coefficients for inelastic processes in low-energy Co + H, Co + + H − , Co + + H , and Co 2 + + H − collisions are estimated using the quantum simplified model. Considerations include 44 triplet and 55 quintet m
Externí odkaz:
https://doaj.org/article/faac3a94edb244f496052d742f4cb3c5
Autor:
Kathryn V. Johnston, Adrian M. Price-Whelan, Maria Bergemann, Chervin Laporte, Ting S. Li, Allyson A. Sheffield, Steven R. Majewski, Rachael S. Beaton, Branimir Sesar, Sanjib Sharma
Publikováno v:
Galaxies, Vol 5, Iss 3, p 44 (2017)
Deep photometric surveys of the Milky Way have revealed diffuse structures encircling our Galaxy far beyond the “classical” limits of the stellar disk. This paper reviews results from our own and other observational programs, which together sugge
Externí odkaz:
https://doaj.org/article/7a2b53fb58e14bb992747ce37b3d39d3
Models of inner planet formation assume that their building blocks precipitate from the Solar Nebula, where thermal gradients and planet mass control their bulk compositions. New estimates of the Solar photosphere provide a test of these ideas. We fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88dfec6a98f278ba7e4aab40edc83cc5
https://doi.org/10.21203/rs.3.rs-2402777/v1
https://doi.org/10.21203/rs.3.rs-2402777/v1
Autor:
Giuseppe Morello, Jeffrey Gerber, Bertrand Plez, Maria Bergemann, Juan Cabrera, Hans-Günter Ludwig, Thierry Morel
We release the first grid of stellar limb-darkening coefficients (LDCs) and intensity profiles (IPs) computed by the consortium of the PLAnetary Transits and Oscillations of stars (PLATO), the next medium-class (M3) mission under development by the E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b01c2d4c471c3caafbd2311a2c87339
http://arxiv.org/abs/2211.16510
http://arxiv.org/abs/2211.16510
Autor:
Roelof de Jong, Olga Bellido-Tirado, Joar . Brynnel, Aida Ezzati Amini, Steffen Frey, Christine Füßlein, Miklos Gäbler, Domenico Giannone, Diana Johl, Silke Kuba, Ulrike Lemke, Genoveva Micheva, Allar Saviauk, Matthias Steinmetz, Jakob C. Walcher, Roland Winkler, Karin Lind, Jonathan Loveday, Sofia Feltzing, Richard McMahon, Vincenzo Mainieri, Jean-François Pirard, Thomas Bensby, Maria Bergemann, Cristina Chiappini, Norbert Christlieb, Maria-Rosa Cioni, Johan Comparat, Simon Driver, Isobel Hook, Mike Irwin, Jean-Paul Kneib, Jochen Liske, Andrea Merloni, Ivan Minchev, Johan Richard, Else Starkenburg, Mark Sullivan, Clare Worley, Wolfgang Gaessler, Florance Laurent, Johan Pragt, Alban Remillieux, Florian Rothmaier, Scott Smedley, Ingo Stilz, Nicholas Walton, David M. Alexander, Ross Church, Scott Croom, Luke J. Davies, Caroline Heneka, Nikolay Kacharov, Jörg Knoche, Georges Kordopatis, Mirko Krumpe, Sarah Martell, Peder Norberg, Ingrid Pelisoli, Sanjib Sharma, Jesper Storm, Elmo Tempel
Publikováno v:
Ground-based and Airborne Instrumentation for Astronomy IX.
4MOST is a new high-multiplex, wide-field spectroscopic survey facility under construction for ESO's 4m-VISTA telescope at Paranal, Chile. Its key specifications are: a large field of view of 4.4 square degrees, a high multiplex fibre positioner base
Autor:
Maria Bergemann, Andrey K. Belyaev, Yaroslav V. Voronov, Richard Hoppe, S. A. Yakovleva, Monika Ellwarth, Manuel A. Bautista, Mats Carlsson, Ekaterina Semenova, Ansgar Reiners, Lyudmila Mashonkina, Ahmad Nemer, Jorrit Leenaarts
Publikováno v:
Bergemann, M, Hoppe, R, Semenova, E, Carlsson, M, Yakovleva, S A, Voronov, Y V, Bautista, M, Nemer, A, Belyaev, A K, Leenaarts, J, Mashonkina, L, Reiners, A & Ellwarth, M 2021, ' Solar oxygen abundance ', Monthly Notices of the Royal Astronomical Society, vol. 508, no. 2, pp. 2236-2253 . https://doi.org/10.1093/mnras/stab2160
Motivated by the controversy over the surface metallicity of the Sun, we present a re-analysis of the solar photospheric oxygen (O) abundance. New atomic models of O and Ni are used to perform Non-Local Thermodynamic Equilibrium (NLTE) calculations w
Autor:
Ekaterina Magg, Maria Bergemann, Aldo Serenelli, Manuel Bautista, Bertrand Plez, Ulrike Heiter, Jeffrey M. Gerber, Hans-Günter Ludwig, Sarbani Basu, Jason W. Ferguson, Helena Carvajal Gallego, Sébastien Gamrath, Patrick Palmeri, Pascal Quinet
Publikováno v:
Magg, E, Bergemann, M, Serenelli, A, Bautista, M, Plez, B, Heiter, U, Gerber, J M, Ludwig, H, Basu, S, Ferguson, J W, Gallego, H C, Gamrath, S, Palmeri, P & Quinet, P 2022, ' Observational constraints on the origin of the elements : IV. Standard composition of the Sun ', Astronomy & Astrophysics, vol. 661, A140 . https://doi.org/10.1051/0004-6361/202142971
The chemical composition of the Sun is requested in the context of various studies in astrophysics, among them in the calculation of the standard solar models (SSMs), which describe the evolution of the Sun from the pre-main-sequence to its present a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1edcb72b1068f67d61785a884671a517
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-476105
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-476105
Autor:
Denis Mourard, Maria Bergemann, Luca Casagrande, Kevin Belkacem, Regner Trampedach, Nicolas Nardetto, Daniel R. Reese, Carlos del Burgo, Marie-Jo Goupil, Victor Silva Aguirre, Andrea Chiavassa, Thierry Morel, Matthew Raymond Gent, Bertrand Plez, Douglas J. Marshall, Martin Asplund, Maria Tsantaki, Jonay I. González Hernández, Aldo Serenelli, Mikhail Kovalev, Luisa Fernanda Rodríguez Díaz, Lionel Bigot, Ulrike Heiter, Vardan Adibekyan, Szabolcs Mészáros, Jeffrey M. Gerber, Rhita-Maria Ouazzani, Thibault Merle
Publikováno v:
Gent, M R, Bergemann, M, Serenelli, A, Casagrande, L, Gerber, J M, Heiter, U, Kovalev, M, Morel, T, Nardetto, N, Adibekyan, V, Aguirre, V S, Asplund, M, Belkacem, K, Del Burgo, C, Bigot, L, Chiavassa, A, Rodríguez Díaz, L F, Goupil, M J, Hernández, J I G, Mourard, D, Merle, T, Mészáros, S, Marshall, D J, Ouazzani, R M, Plez, B, Reese, D, Trampedach, R & Tsantaki, M 2022, ' The SAPP pipeline for the determination of stellar abundances and atmospheric parameters of stars in the core program of the PLATO mission ', Astronomy and Astrophysics, vol. 658, A147 . https://doi.org/10.1051/0004-6361/202140863
Raymond, M, Bergemann, M, Serenelli, A M, Casagrande, L, Gerber, M, Heiter, U, Kovalev, M, Morel, T, Nardetto, N, Adibekyan, V, Aguirre, V S, Asplund, M, Belkacem, K, Del Burgo, C, Bigot, L, Chiavassa, A, Díaz-Aranda, L M, Goupil, M-J, González Hernández, J, Goupil, M-J, Trampedach, R & Tsantaki, M 2022, ' The SAPP pipeline for the determination of stellar abundances and atmospheric parameters of stars in the core program of the PLATO mission ', Astonomy & astrophysics, vol. 658, A147 . https://doi.org/10.1051/0004-6361/202140863
Raymond, M, Bergemann, M, Serenelli, A M, Casagrande, L, Gerber, M, Heiter, U, Kovalev, M, Morel, T, Nardetto, N, Adibekyan, V, Aguirre, V S, Asplund, M, Belkacem, K, Del Burgo, C, Bigot, L, Chiavassa, A, Díaz-Aranda, L M, Goupil, M-J, González Hernández, J, Goupil, M-J, Trampedach, R & Tsantaki, M 2022, ' The SAPP pipeline for the determination of stellar abundances and atmospheric parameters of stars in the core program of the PLATO mission ', Astonomy & astrophysics, vol. 658, A147 . https://doi.org/10.1051/0004-6361/202140863
We introduce the SAPP (Stellar Abundances and atmospheric Parameters Pipeline), the prototype of the code that will be used to determine parameters of stars observed within the core program of the PLATO space mission. The pipeline is based on the Bay
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18328d7ed366f06a4cd6f4a9df0d126e
http://hdl.handle.net/10261/296075
http://hdl.handle.net/10261/296075