Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Jonay I González Hernández"'
Autor:
Jeniveve Pearson, David J. Sand, Peter Lundqvist, Lluís Galbany, Jennifer E. Andrews, K. Azalee Bostroem, Yize Dong, Emily Hoang, Griffin Hosseinzadeh, Daryl Janzen, Jacob E. Jencson, Michael J. Lundquist, Darshana Mehta, Nicolás Meza Retamal, Manisha Shrestha, Stefano Valenti, Samuel Wyatt, Joseph P. Anderson, Chris Ashall, Katie Auchettl, Eddie Baron, Stéphane Blondin, Christopher R. Burns, Yongzhi Cai, Ting-Wan Chen, Laura Chomiuk, David A. Coulter, Dane Cross, Kyle W. Davis, Thomas de Jaeger, James M. DerKacy, Dhvanil D. Desai, Georgios Dimitriadis, Aaron Do, Joseph R. Farah, Ryan J. Foley, Mariusz Gromadzki, Claudia P. Gutiérrez, Joshua Haislip, Jonay I. González Hernández, Jason T. Hinkle, Willem B. Hoogendam, D. Andrew Howell, Peter Hoeflich, Eric Hsiao, Mark E. Huber, Saurabh W. Jha, Cristina Jiménez Palau, Charles D. Kilpatrick, Vladimir Kouprianov, Sahana Kumar, Lindsey A. Kwok, Conor Larison, Natalie LeBaron, Xavier Le Saux, Jing Lu, Curtis McCully, Tycho Mera Evans, Peter Milne, Maryam Modjaz, Nidia Morrell, Tomás E. Müller-Bravo, Megan Newsome, Matt Nicholl, Estefania Padilla Gonzalez, Anna V. Payne, Craig Pellegrino, Kim Phan, Jonathan Pineda-García, Anthony L. Piro, Lara Piscarreta, Abigail Polin, Daniel E. Reichart, César Rojas-Bravo, Stuart D. Ryder, Irene Salmaso, Michaela Schwab, Melissa Shahbandeh, Benjamin J. Shappee, Matthew R. Siebert, Nathan Smith, Jay Strader, Kirsty Taggart, Giacomo Terreran, Samaporn Tinyanont, M. A. Tucker, Giorgio Valerin, D. R. Young
Publikováno v:
The Astrophysical Journal, Vol 960, Iss 1, p 29 (2023)
We present optical, infrared, ultraviolet, and radio observations of SN 2022xkq, an underluminous fast-declining Type Ia supernova (SN Ia) in NGC 1784 ( D ≈ 31 Mpc), from
Externí odkaz:
https://doaj.org/article/0d3724b4428e48fe8aa08876a4a65aba
Autor:
Carlos Allende Prieto, David S. Aguado, Jonay I. González Hernández, Rafael Rebolo, Joan Najita, Christopher J. Manser, Constance Rockosi, Zachary Slepian, Mar Mezcua, Monica Valluri, Rana Ezzeddine, Sergey E. Koposov, Andrew P. Cooper, Arjun Dey, Boris T. Gänsicke, Ting S. Li, Katia Cunha, Siwei Zou, Jessica Nicole Aguilar, Steven Ahlen, David Brooks, Todd Claybaugh, Shaun Cole, Sarah Eftekharzadeh, Kevin Fanning, Jaime Forero-Romero, Satya Gontcho A Gontcho, Klaus Honscheid, Pascale Jablonka, Robert Kehoe, Theodore Kisner, Martin Landriau, Axel de la Macorra, Aaron Meisner, Ramón Miquel, John Moustakas, Jundan Nie, Claire Poppett, Francisco Prada, Mehdi Rezaie, Graziano Rossi, Eusebio Sánchez, Michael Schubnell, Ray Sharples, Malgorzata Siudek, Verne V. Smith, Gregory Tarlé, Fiorenzo Vincenzo, Benjamin Alan Weaver, Zhimin Zhou, Hu Zou
Publikováno v:
The Astrophysical Journal, Vol 957, Iss 2, p 76 (2023)
The observations from the Dark Energy Spectroscopic Instrument (DESI) will significantly increase the numbers of known extremely metal-poor stars by a factor of ∼10, improving the sample statistics to study the early chemical evolution of the Milky
Externí odkaz:
https://doaj.org/article/f8ae4b04a7394e6fa3dcda873efa51aa
Autor:
Nicolas F Martin, Rodrigo A Ibata, Else Starkenburg, Zhen Yuan, Khyati Malhan, Michele Bellazzini, Akshara Viswanathan, David Aguado, Anke Arentsen, Piercarlo Bonifacio, Ray Carlberg, Jonay I González Hernández, Vanessa Hill, Pascale Jablonka, Georges Kordopatis, Carmela Lardo, Alan W McConnachie, Julio Navarro, Rubén Sánchez-Janssen, Federico Sestito, Guillaume F Thomas, Kim A Venn, Sara Vitali, Karina T Voggel
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 516(4), 5331-5354. Oxford University Press
We use the photometric metallicities provided by the panoramic Pristine survey to study the veracity and derive the metallicities of the numerous stellar streams found by the application of the STREAMFINDER algorithm to the Gaia EDR3 data. All 26 str
Autor:
Raphaël Errani, Julio F Navarro, Rodrigo Ibata, Nicolas Martin, Zhen Yuan, David S Aguado, Piercarlo Bonifacio, Elisabetta Caffau, Jonay I González Hernández, Khyati Malhan, Rubén Sánchez-Janssen, Federico Sestito, Else Starkenburg, Guillaume F Thomas, Kim A Venn
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 514, 3532-3540. Oxford University Press
The recently discovered C-19 stellar stream is a collection of kinematically associated metal-poor stars in the halo of the Milky Way lacking an obvious progenitor. The stream spans an arc of ~15 degrees in the sky, and orbit-fitting suggests an apoc
Autor:
Zhen Yuan, Nicolas F Martin, Rodrigo A Ibata, Elisabetta Caffau, Piercarlo Bonifacio, Lyudmila I Mashonkina, Raphaël Errani, Amandine Doliva-Dolinsky, Else Starkenburg, Kim A Venn, Anke Arentsen, David S Aguado, Michele Bellazzini, Benoit Famaey, Morgan Fouesneau, Jonay I González Hernández, Pascale Jablonka, Carmela Lardo, Khyati Malhan, Julio F Navarro, Rubén Sánchez Janssen, Federico Sestito, Guillaume F Thomas, Akshara Viswanathan, Sara Vitali
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 514, 1664-1671. Oxford University Press
The C-19 stream is the most metal poor stellar system ever discovered, with a mean metallicity $[Fe/H] = -3.38\pm0.06$. Its low metallicity dispersion ($\sigma_{\rm [Fe/H]}$ $
Comment: 7 pages, 6 figures, accepted to MNRAS. The C-19 member list
Comment: 7 pages, 6 figures, accepted to MNRAS. The C-19 member list
Autor:
Anke Arentsen, David S Aguado, Federico Sestito, Jonay I González Hernández, Nicolas F Martin, Else Starkenburg, Pascale Jablonka, Zhen Yuan
Ultra metal-poor stars ([Fe/H] < -4.0) are very rare, and finding them is a challenging task. Both narrow-band photometry and low-resolution spectroscopy have been useful tools for identifying candidates, and in this work we combine both approaches.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa753a23e072bfe7383eb3f55d3dc837
The Near-InfraRed Planet Searcher (NIRPS) is a new ultra-stable near-infrared spectrograph installed on ESO 3.6-m Telescope in La Silla, Chile. Aiming to achieve a precision of 1 m/s, NIRPS is operating together with HARPS. NIRPS has been designed to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13c6e508c0e412518980c58de9d7c678
https://doi.org/10.5194/epsc2022-937
https://doi.org/10.5194/epsc2022-937
Autor:
Fabio Tenegi Sanginés, Bruno Chazelas, Jonay I. González-Hernández, Rafael Rebolo-López, Manuel Amate Plasencia
Publikováno v:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V.
Autor:
Federico Sestito, Kim A Venn, Anke Arentsen, David Aguado, Collin L Kielty, Carmela Lardo, Nicolas F Martin, Julio F Navarro, Else Starkenburg, Fletcher Waller, Raymond G Carlberg, Patrick François, Jonay I González Hernández, Georges Kordopatis, Sara Vitali, Zhen Yuan
The investigation of the metal-poor tail in the Galactic bulge provides unique information on the early Milky Way assembly and evolution. A chemo-dynamical analysis of 17 very metal-poor stars (VMP, [Fe/H] $
22 pages + appendix, 14 Figures + 3 i
22 pages + appendix, 14 Figures + 3 i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a08f2026c94cdf88ff80e49366d2136
http://arxiv.org/abs/2208.13791
http://arxiv.org/abs/2208.13791
Autor:
Nicolas Longeard, Nicolas F. Martin, Pascale Jablonka, Patrick Côté, Rodrigo A. Ibata, Else Starkenburg, David Aguado, Jonay I. González Hernández, Julio F. Navarro, Alan W. McConnachie, Guillaume F. Thomas, Rubén Sánchez-Janssen, Raymond G. Carlberg, Khyati Malhan, Kim Venn, R. Lucchesi
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, 2021, ⟨10.1093/mnras/stab604⟩
Monthly Notices of the Royal Astronomical Society, 503(2), 2754-2762. Oxford University Press
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, ⟨10.1093/mnras/stab604⟩
Monthly Notices of the Royal Astronomical Society, 503(2), 2754-2762. Oxford University Press
We present a new spectroscopic study of the faint Milky Way satellite Sagittarius II. Using multiobject spectroscopy from the Fibre Large Array Multi-Element Spectrograph, we supplement the data set of Longeard et al. with 47 newly observed stars, 19