Kepler K2 Campaign 9 – I. Candidate short-duration events from the first space-based survey for planetary microlensing

Autor: Shude Mao, Radosław Poleski, Iain McDonald, Eamonn Kerins, M. T. Penny, Wei Zhu, D. Specht, Weicheng Zang, Pascal Fouqué

Publikováno v: McDonald, I, Kerins, E, Poleski, R, Penny, M T, Specht, D, Mao, S, Fouqué, P, Zhu, W & Zang, W 2021, ' Kepler K2 Campaign 9-I. Candidate short-duration events from the first space-based survey for planetary microlensing ', Monthly Notices of the Royal Astronomical Society, vol. 505, no. 4, pp. 5584-5602 . https://doi.org/10.1093/mnras/stab1377
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2021, 505, pp.5584-5602. ⟨10.1093/mnras/stab1377⟩

We present the first short-duration candidate microlensing events from the Kepler K2 mission. From late April to early July 2016, Campaign 9 of K2 obtained high temporal cadence observations over a 3.7 square degree region of the Galactic bulge. Its

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd315e2ba16a698fa0fbc6ab735ff464
https://doi.org/10.1093/mnras/stab1377

Asteroseismic modelling of solar-type stars: a deeper look at the treatment of initial helium abundance

Autor: Tiago L. Campante, Mário J. P. F. G. Monteiro, Nuno Moedas, Chen Jiang, A. Hernández, M. S. Cunha, Benard Nsamba, João Fernandes, Juan C. Suárez, Babatunde Akinsanmi

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Monthly Notices of the Royal Astronomical Society

Detailed understanding of stellar physics is essential towards a robust determination of stellar properties (e.g. radius, mass, and age). Among the vital input physics used in the modelling of solar-type stars which remain poorly constrained, is the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7930548a383a41a8a10c3ad4e966a57
https://doi.org/10.1093/mnras/staa3228

J-PLUS: Searching for very metal-poor star candidates using the SPEEM pipeline

Autor: Carlos Andrés Galarza, Simone Daflon, Vinicius M. Placco, Carlos Allende Prieto, Marcelo Borges Fernandes, Haibo Yuan, Carlos López-Sanjuan, Young Sun Lee, Enrique Solano, F. Jiménez-Esteban, David Sobral, Alvaro Alvarez Candal, Claudio B. Pereira, Stavros Akras, Eduardo Martín, Yolanda Jiménez Teja, Javier Cenarro, David Cristóbal-Hornillos, Carlos Hernández-Monteagudo, Antonio Marín-Franch, Mariano Moles, Jesús Varela, Héctor Vázquez Ramió, Jailson Alcaniz, Renato Dupke, Alessandro Ederoclite, Laerte Sodré, Raul E. Angulo

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Astronomy & Astrophysics

Context. We explore the stellar content of the Javalambre Photometric Local Universe Survey (J-PLUS) Data Release 2 and show its potential for identifying low-metallicity stars using the Stellar Parameters Estimation based on Ensemble Methods (SPEEM)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc6138a86027f87e645cbf5036e1aa65
http://hdl.handle.net/10261/260856

Mode angular degree identification in subgiant stars with convolutional neural networks based on power spectrum

Autor: Minghao Du, Xianfei Zhang, Shaolan Bi, Yaguang Li, Ruijie Shi, Tanda Li

Publikováno v: Du, M, Bi, S, Zhang, X, Li, Y, Li, T & Shi, R 2021, ' Mode angular degree identification in subgiant stars with convolutional neural networks based on power spectrum ', Monthly Notices of the Royal Astronomical Society, vol. 501, no. 1, pp. 614-622 . https://doi.org/10.1093/mnras/staa3642
Monthly Notices of the Royal Astronomical Society

Identifying the angular degrees $l$ of oscillation modes is essential for asteroseismology and depends on visual tagging before fitting power spectra in a so-called peakbagging analysis. In oscillating subgiants, radial ($l$= 0) mode frequencies dist

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::052c012de4ed0864d63ff45084df6d22
https://pure.au.dk/portal/da/publications/mode-angular-degree-identification-in-subgiant-stars-with-convolutional-neural-networks-based-on-power-spectrum(34da26c2-c8b7-47c3-9e66-f1bcd8650956).html

Gaia white dwarfs within 40 pc – I. Spectroscopic observations of new candidates

Autor: Alberto Rebassa-Mansergas, Warren R. Brown, Souza Oliveira Kepler, Jinwei Ren, Christopher J. Manser, Tim Cunningham, Mark Hollands, M. R. Schreiber, Santiago Torres, Pier-Emmanuel Tremblay, N. Giammichele, T. R. Marsh, J. J. Hermes, Boris T. Gänsicke, S. J. Kleinman, N. P. Gentile Fusillo, Stefan Jordan, Stéphane Charpinet, Odette Toloza, Elena Cukanovaite, Detlev Koester, D. de Martino, Silvia Toonen, Steven G. Parsons, I. Pelisoli, Jay Farihi, J. McCleery, Atsuko Nitta, Matthew J. Hoskin, Valérie Van Grootel, Roberto Silvotti, Roberto Raddi, Paula Izquierdo

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 497 (1), pp.130-145. ⟨10.1093/mnras/staa1892⟩
Digital.CSIC. Repositorio Institucional del CSIC
instname
Monthly Notices of the Royal Astronomical Society, 2020, 497 (1), pp.130-145. ⟨10.1093/mnras/staa1892⟩
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

We present a spectroscopic survey of 230 white dwarf candidates within 40 pc of the Sun from the William Herschel Telescope and Gran Telescopio Canarias. All candidates were selected from Gaia Data Release 2 (DR2) and in almost all cases, had no prio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19ee88773b2c52c0ed1a2f5a8ae9ccd2
https://hal.archives-ouvertes.fr/hal-03001737/document